Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Power Electronics Systems and Applications, 2009. PESA 2009. 3rd International Conference on

Date 20-22 May 2009

Filter Results

Displaying Results 1 - 25 of 103
  • Recent development on electric vehicles

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (5181 KB) |  | HTML iconHTML  

    This paper provide an overview of the recent work of electric vehicle in the region. The paper describes the development and the comparison of different part of components. The major components in battery technology, charger design, motor, steering and braking are examined. The paper finally shows some electric vehicle prototype as a conclusion of the papers. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Review on the configurations of hybrid electric vehicles

    Publication Year: 2009 , Page(s): 1 - 4
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (102 KB) |  | HTML iconHTML  

    This paper presents an introduction to hybrid electric vehicles, the commonly used configurations of the driving chains, the comparisons among these configurations, and then finally the possible developments of hybrid electric vehicles in the near further. Plug-in hybrid electric vehicles are also included in the discussion. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Steady state analysis of self-excited six-phase induction generator for alternate renewable energy generation

    Publication Year: 2009 , Page(s): 1 - 6
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (117 KB) |  | HTML iconHTML  

    This paper presents the steady-state analysis of a six-phase self-excited induction generator (SPSEIG) for alternate renewable energy generation under different loading conditions. The analysis is based on nodal admittance method using graph theory as applied to the equivalent circuit model. Unlike with conventional method of analysis, with the proposed method, detailed mathematical derivation for each set of unknown parameter is not required, and the generalized model of SPSEIG dispenses with tedious work of segregating real and imaginary components of complex impedance of induction generator for deriving the specific models for each operating mode. In this proposed method, resultant matrix form is directly solved by Fmincon. Some of the key analytical results are validated by experimental results. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The performance research of large scale wind farm connected to external power grid

    Publication Year: 2009 , Page(s): 1 - 5
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (708 KB) |  | HTML iconHTML  

    At present, the wind power generators widely used in China are the squirrel cage induction generators (SCIG). With the rapid increase in penetration of wind power in power systems, the dynamic influence of a large wind farm on power systems is becoming an important issue for integration and operation of wind farms. So grid codes require that all new installed WTGs should have the capability of fault ride through (FRT) or low voltage ride through (LVRT). This capability means that wind generation should have the ability to remain connected during faults (outside their protection zone) and voltage dip conditions within certain limits. Based on the appropriate wind farm models, the dynamic performance of wind farm during faults and the effect of FRT with static VAR compensation (SVC) equiped is researched. Furthermore, the effect of FRT when doubly-fed induction generators (DFIG) connected in wind farm was researched. These models of wind farm were developed and compared by simulation studies in the PSCAD/EMTDC environment under different wind fluctuation conditions as well as gird fault conditions, which took Nanao wind farm connected to the Shantou power grid of Guangdong Province, China as an example. The simulation results showed that SVC can provide fast dynamic reactive power support, DFIG be able to provide reactive power support according to the requirement reactive power value of FSIG terminal very well. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Minimization of current stress on the grid synchronization of doublyfed induction generators for wind power generation

    Publication Year: 2009 , Page(s): 1 - 4
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (681 KB) |  | HTML iconHTML  

    Doubly-fed induction generator (DFIG) is the most common type of generators for wind power generation, because of their high energy yield and the possibility of generating power at variable speeds. For most papers in literature, only the synchronization and power generation of DFIGs, but not the transition between them, are discussed. This paper presents a method to control the transition of DFIGs from synchronization to power generation, in order to minimize the peak current during the transition so as to reduce the impact of synchronization on the power system. In this paper the mathematical model of DFIGs for synchronization, transition, and power generation are firstly described. Then the effects of the time difference between the state transition of the controllers and the closing of the stator side contactors and associated current stresses are investigated. A real-time detection method to determine the optimal time for controller state transition is proposed. Simulation and experimental validations confirm that the current stress is greatly reduced if the time difference is minimized using the proposed method. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimal control of batteries in communication and distribution system based on dynamic programming

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (191 KB) |  | HTML iconHTML  

    As mobile communication business rapidly developing, the distribution system of communication building often faces pressure to upgrade capacity. According to the system's configuration features of the mobile communication building, the paper applies the dynamic programming methods to the charging process of the building's batteries. Then this method could excellently release a great part of capacity to provide the power to the new communication equipment. On the basis of the battery's charging and discharging experiments. This paper establishes the whole building's battery charging model. Considering of the limits of communication system safety, the load of the batteries and the important grades of the battery charge, the paper uses dynamic programming ideas to get optimal recharging times of every battery. Simulation results show: through charging at the different optimal time, battery charging current drop to 25% of the original. The optimization control program provides mobile communication equipment with a fast, convenient and low cost way. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hardware design and realization of matrix converter based on DSP & CPLD

    Publication Year: 2009 , Page(s): 1 - 5
    Cited by:  Papers (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (673 KB) |  | HTML iconHTML  

    In this paper, design and implementation of a 3times3 matrix converter for VSCF application in wind-power generation system is presented. The double line-to-line control strategy, which can improve the performance of matrix converter under abnormal input voltage conditions, and hardware design of the matrix converter system are described detailedly. In order to implement this strategy and deliver the PWM pulses to the appropriate switches, digital signal processor (DSP) and complex programmable logic device (CPLD) are used. Finally, experiment device is designed. Some experimental results are given and the performance of the matrix converter is discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Semi-physical experiment platform for wind power generation

    Publication Year: 2009 , Page(s): 1 - 5
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1162 KB) |  | HTML iconHTML  

    Aiming at the complicated conditions of wind farm, this paper proposes a semi-physical simulation system that can simulate the operation of wind turbine under laboratory conditions. First, gives simulated wind velocity that based on ARMA and statistical wind velocity model, and then utilizes field data to make power spectrum correction. Second, Basing on the combination of the wind wheel, transmission shaft, gearbox, variable pitch system, and the pulse characteristics of pneumatic torque, a simulated method, from input wind speed to output torque of asynchronous motor is given. The results show that the feasibility of this method. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Research on intelligent charging technique of electric current pump

    Publication Year: 2009 , Page(s): 1 - 4
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (676 KB) |  | HTML iconHTML  

    Along with the fast development of new energy technology, the wind-solar hybrid power generation system is more and more popular than before and is the direction to energy and electric power in the 21st century. So the technique of the accumulator cell by which the wind - solar hybrid power is stored is playing more and more vital role. And then there are many different kinds of the charging techniques. According to the electrochemistry principle of the accumulator cell and the phenomenon of the ohmic polarization, the density polarization, the electrochemistry polarization and the pulse galvanization principle, this article has designed one kind of new charging technique- - the depolarizing electric current pump charging technique. The charge technique adapts to each type of the accumulator cells, so it is called intelligent charging technique. The best advantage of the intelligent charging technique is that when the input voltage is lower than the battery terminal voltage, the charging technique is also able. The charger is simple and usable. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of fuzzy controller for ZCS quasi-resonant Luo converter

    Publication Year: 2009 , Page(s): 1 - 7
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (770 KB) |  | HTML iconHTML  

    In many pulse width modulated DC/DC converter topologies, the controllable switches are operated in switch mode where they are required to turn the entire load current on and off during each switching cycle. Under these conditions, the switches are subjected to high switching stresses and power losses. Recently there is an increased interest in the use of quasi-resonant type DC/DC converters due to the advantages of high frequency of operation, high efficiency, small size, light weight, reduced Electro Magnetic Interference (EMI) and low component stresses. DC/DC zero current switching (ZCS) quasi-resonant Luo converters find applications in distributed energy systems like solar systems, vertical axis aero-generator and fuel cell power systems. DC/DC ZCS quasi-resonant Luo converters are also employed in a variety of applications including power supplies for personal computers, space-craft power systems, lap-top computers, telecommunication equipments as well as DC motor drives. The present work is on the performance evaluation of DC/DC ZCS quasi-resonant Luo converters. MATLAB software and TMS320LF2407 digital signal processor (DSP) are used to study the dynamic characteristics and analyze the closed loop performances of these converters with resistive load and fuzzy controllers under supply and load disturbances. The simulation and experimental results closely match with each other and highlight the feasibility and validity of the developed control scheme. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Novel Cuk circuit and Its application in photovoltaic system

    Publication Year: 2009 , Page(s): 1 - 4
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (651 KB) |  | HTML iconHTML  

    This paper designs a isolated resonance cuk circuit based on the theoretical analysis of cuk circuit, and do experiment of this circuit, also research the circuit's working principle and transmission efficiency under different load; Combining with the PV arrays working characteristics, this circuit was applied in photovoltaic (PV) generating control system to realize the maximum power point tracking of PV arrays and reduce the electromagnetic interference to external environment. The experimental results show that this novel isolated cuk circuit has higher transmission efficiency, and can realize the control of the PV cells better. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • FPGA-based DPWM for digitally controlled high-frequency DC-DC SMPS

    Publication Year: 2009 , Page(s): 1 - 7
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1631 KB) |  | HTML iconHTML  

    Digital pulse-width modulator (DPWM) is known as the critical module in digital controller application for high-frequency switching mode power supply (SMPS). This paper presents a new Hybrid DPWM architecture operating at high frequency with high resolution. The proposed DPWM takes advantage of the phase-shift function of Digital Clock Manager (DCM) in FPGA, and combines a counter-comparator with a digital dither block. To verify the proposed DPWM, an 11-bit prototype DPWM is implemented on a FPGA-based digitally controlled high-frequency buck converter. Experimental results with constant switching frequency up to 2 MHz validate the functionality of the proposed DPWM. This hybrid architecture can operate at high switching frequency while reduce clock frequency so as to save power consumption. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wind power generation simulating and experimental system based on ARM and DSP

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (258 KB) |  | HTML iconHTML  

    In order to research the wind power technology in the environment far away wind farm, this paper proposed a design and realization wind power generation simulating and experimental system based on ARM and DSP. It includes wind speed simulating system, wind turbine simulating system, power generation system, monitoring system and controller. In the system, simulates actual wind using statistical model and ARAM model, this is completes in the DSP1#. Use an inverter to control the output of the asynchronous motor to simulate the function of wind turbines, and use the DSP2# to monitor the running of brushless doubly-fed generators. The whole system is supervised and controlled by ARM. Through the display device, we can see the whole system running, including voltage, current, frequency, harmonics, power, and the wind speed-power curve. With this system, we can research wind power generation in the Lab. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Research on matrix converter and brushless doubly-fed machine for wind power generation system

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (763 KB) |  | HTML iconHTML  

    Brushless doubly-fed machine (BDFM) has two sets of winding on the stator, the power winding connect with constant frequency constant voltage three-phase power frequency electrical source ,the controlled winding connect with the matrix converter (MC). MC possess the capability of bi-directional power flow, can simultaneously provide sinusoidal input current and output voltage. The phase of input current can be adjusted to lead, to lag or to coincide with the phase of the input voltage, the magnitude and frequency of the output voltage and the input power factor can be independently adjusted. This paper study the brushless doubly-fed wind power generation system based on the MC and BDFM. The MC using double voltage control strategy can have a good output frequency, also can make the BDFM run normally. The results from simulation and experiment can prove that the MC composed by DSP and CPLD is correct and feasible. Meanwhile, it also lays a foundation for the practical application of brushless doublyfed wind power generation system. Adopted wind power generation system consisting of the MC and BDFM is a kind of VSCF project. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The topologies of white LED lamps' power drivers

    Publication Year: 2009 , Page(s): 1 - 6
    Cited by:  Papers (7)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (851 KB) |  | HTML iconHTML  

    This paper demonstrates power electronic drivers for white LED lamps. Due to some obvious features such as high luminous efficiency, low-loss energy, long life, safety, green, and so on, it's expected to replace conventional lamps including incandescent, halogen and fluorescent lamps at least in some general illumination application within the near future. It's always used in automotive fields. Innovative design in driver circuits of white LED lamps with respect of functionality, efficiency, cost, size and reliability enables the successful introduction of new LED based lighting products. First of all, it describes LED's characteristics briefly which include electrical character, driver requirement, luminous characteristic, thermal performance and package structure. In the second part, a series connection of single LED cells is presented in detail. For efficiency reasons, white LED lamps can not be droved via series resistor, but need PWM models with current control. In the third part, different standard DC-DC converter topologies are discussed which can be adapted to feed a constant current into a LED load. Hence, roughly, it consists of two general types which named non-isolated driver and isolated driver separately. This paper will introduce more detailed classifications. It's convenient to choose proper driver circuit and suited components through the comparison between the topologies of this paper. In addition, PFC (power factor correction) circuit is also involved in high power factor. Finally, some hot spots in white LED lamps fields are focused on. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distributed hybrid wind-PV power system based on multi-agent

    Publication Year: 2009 , Page(s): 1 - 3
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (506 KB) |  | HTML iconHTML  

    A distributed hybrid coordinated wind-photovoltaic (PV) power system structure based on multi-agent system was proposed in this paper. The basic wind power unit controller and photovoltaic cells controller were viewed as electrical source agents (ESA). The energy management system was viewed as management coordinated agent (MCA). The MCA and the ESA registered on it were defined as agent domain. A novel contract net protocol algorithm based on idleness principle was introduced as coordinated method. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low cost high-side gate drive power supply for switched reluctance machines

    Publication Year: 2009 , Page(s): 1 - 4
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (336 KB) |  | HTML iconHTML  

    The applications of switched reluctance machines in electrical vehicles, as well as in wind and hydro turbines, are gaining increasing attentions from the industries because of their low cost, low inertia and simple construction. In this paper, a low cost high-side power supply for the gate driver of switched reluctance machine is presented. With the use of a bootstrap technology, the high-side circuit acquires energy from the power supply of the low-side when the high-side switch is turned off. The acquired energy is utilized to support the high-side gate driver and current sensor when the phase winding is excited with the DC-link voltage. The circuit requires only a power diode and capacitor for each high-side power electronic switch. Comparing with traditional isolated power supply solutions, the cost and size of the proposed method are reduced. The necessary control algorithm of the gate drive to sustain the high-side voltage is also presented in this paper. Although it slightly increases the computational burden of the controller, it imposes no limit on the control of the phase winding of the machine with proper selection of the bootstrap capacitor. The guideline on the selection of the power electronic components is derived based on the parameters of the switched reluctance machine. Experimental results prove that the proposed scheme is practically feasible, for normal operations of SRM. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The fault-tolerant technique in the Rotor Current Controller in Induction Wind Generator

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (80 KB) |  | HTML iconHTML  

    The thesis expounds the importance of the rotor current controller in induction wind generator in wind generator sets. The topic analyses the kind and the source of the faults of the rotor current controller. Also it design the method of the technology of tolerating faults in the rotor current controller. Some kinds of the technology of tolerating faults are used in hardware and software. So the system can identify the kinds of the fault and eliminate the fault, then making the system can control itself and achieve the best work state again. Using mix redundant methods in software part in order to protect the program running reliably and disposing dates correctly. The system which can be controlled remotely and showed communicates with the computer and can send the result of diagnosis to it in time. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Research of heat source analysis of communication engine-room and cold configuration

    Publication Year: 2009 , Page(s): 1 - 5
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1517 KB) |  | HTML iconHTML  

    In order to cut down air-condition energy consumption in the communication room and reduce the heat island effect partially, through the use of CFD (computational fluid dynamics), we have a study on airflow characteristics in communication engine-room. On the basis of established mathematical and physical equation about airflow characteristics, we try to get the numerical solution, and analyze the speed field and the temperature field of the airflow comprehensively in air outlets and return-air intakes, around the communication equipments and in the cross-section of the engine room. Also we have an experimental test and verification analysis in the sample room. Experiments show that the numerical results are basically consistent with the measured values. From this we can see that the model is correct, and the result of numerical solution is credible. Finally, according to the result of numerical solution and the experiment test of the sample room, we can design the deployment program of the incoming (back) wind so as to optimize the operating environment of the equipments, reduce the cold waste and explore out the energy-saving potential in the engine room. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A DC-DC converter used as a light dimmer for compact fluorescent lamps

    Publication Year: 2009 , Page(s): 1 - 7
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (687 KB) |  | HTML iconHTML  

    To face the challenge of possible global warming, the governments of developed countries around the world try to cut their carbon emissions by promoting the use of energy efficient appliances such that the standard of living of their people could be maintained with less overall energy consumption . One of their moves is to replace inefficient incandescent lamps with compact fluorescent lamps (CFL) with high efficacy through legislation. However the majority of CFL available in the market cannot be used in conjunction with tradition Silicon Controller Rectifier (SCR) light dimmers such that certain replacements cannot be conducted as expected. Moreover, dimming the light output to a desired level is also a way of energy saving without degradation in living quality. Therefore this paper presents a practical light dimmer, which is essentially a DC-DC converter, that can be used in conjunction with the majority of CFL available in the market and the dimmer can be installed in a wall mountable housing like a conventional dimmer. The paper also provides the measured characteristics of a set of CFL under dimming control and evaluates the overall performance of the proposed light dimmer in conjunction with CFL. Finally, this paper gives a brief discussion on the possible impact on the efficacy and lifetime of CFL used in conjunction with the proposed light dimmer. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power dispatching of distributed wind-Solar power generation hybrid system based on genetic algorithm

    Publication Year: 2009 , Page(s): 1 - 4
    Cited by:  Papers (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (223 KB) |  | HTML iconHTML  

    This paper aims at seeking reasonable power dispatching scheme for distributed wind-solar power generation hybrid system, to satisfy some basic requirements, such as dispersed electric power demand, electric power quality and reducing generation cost and so on. Firstly we represented some elements of the main parts in the hybrid system; and then made basic dispatching strategies according to different situations; then pointed out four improving measures to improve basic genetic algorithm, such as, (1). Modify the producing way of selection probability, (2). Improve the way of crossover, (3). Protect excellent chromosomes, (4). Change mutation range and so on. In the end, we try to solve the units commitment for dispatching plan problem based on the improved genetic algorithm, and the application seem proved it reasonable. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cooperative reinforcement learning algorithm to distributed power system based on Multi-Agent

    Publication Year: 2009 , Page(s): 1 - 4
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (875 KB) |  | HTML iconHTML  

    With the development of renewable energy technology, the distributed wind-PV power system has a wider application. This paper proposes a distributed wind- PV power system based on Multi-Agent, whose main character is energy management, and describes the multi-agent cooperative reinforcement learning process using the joint action learning pattern as the cooperative strategy. The experiment of a distributed wind-PV power system shows the efficiency. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Research on a novel switched reluctance wind power generator system for electric vehicles

    Publication Year: 2009 , Page(s): 1 - 6
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (143 KB) |  | HTML iconHTML  

    The exigencies created by the shortage of energy supplies and the ever-growing air pollution stress the need for an alternative solution to the on-board power generation. The purpose of this paper is to develop a novel switched reluctance wind power generator (SRWPG) system for electric vehicles (EVs), which can convert the wind power into electric power so as to charge a battery or support other vital loads in an EV on-board. The work will focus on collecting valuable first hand experience in the wind assisted on-board power generation system. Various configurations of the wind turbines are studied and the one suitable to the project is proposed in the investigation. In addition to the mechanical aspect of the SRWPG system due attention is given to the control aspect of the system according to the characteristics of switched reluctance generators (SRGs). View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A significant scheme of distributed generation system using wind-solar-diesel applying in island

    Publication Year: 2009 , Page(s): 1 - 3
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (548 KB)  

    The wind-solar-diesel hybrid power supply system can make fully use of the local wind and solar resources. Such a distributed generation supply system in an island of south china is detailed introduced. Based on the analysis of the local natural resources, different load components and their operating characteristics, a novel hybrid power supply system mainly composed of renewable resources is configured. The central energy management and control system improves the renewable resources utilization and guarantees the good power quality. The successful application of this hybrid power supply system is a good reference for the distributed generation application located in island without the utility grid. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Experimental investigation of in-wheel switched reluctance motor driving system for future electric vehicles

    Publication Year: 2009 , Page(s): 1 - 6
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (272 KB) |  | HTML iconHTML  

    This paper presents an experimental direct driving system with in-wheel switched reluctance motor (SRM) for electrical vehicle (EV). The integrated EV direct driving system includes three main parts: the SRM model, driving circuit and control unit. The proposed 8/6 SRM is a novel motor with high performance; the specified external rotor type fits the requirement of in-wheel EV for saving space. The driving module consists of four independent drivers, is controlled by the micro-controller, DSP. The detailed hardware installment is presented to realize the EV direct driving system, with the block diagram to show the design of the driving system. Control flow of the specified system is introduced to describe the control procedure; various control methods are proposed and studied to verify the performance of SRM and the driving system. Speed control and constant torque/constant power control are implemented with PI control and hysteresis loop control, to test the speed response and reliability of the direct driving system. An experimental direct driving system is developed; the experimental results are obtained to verify the performances of the EV driving system. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.