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TENCON 2010 - 2010 IEEE Region 10 Conference

Date 21-24 Nov. 2010

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Displaying Results 1 - 25 of 431
  • [Front matter]

    Publication Year: 2010 , Page(s): c1 - i
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  • Foreword from TENCON 2010 organizing chair

    Publication Year: 2010 , Page(s): ii
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  • Preface from TENCON 2010 Program Committee chair

    Publication Year: 2010 , Page(s): iii
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  • Sponsors and organizers

    Publication Year: 2010 , Page(s): iv
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  • Organizing Committee

    Publication Year: 2010 , Page(s): v
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  • Program Committee

    Publication Year: 2010 , Page(s): vi
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  • List of reviewers

    Publication Year: 2010 , Page(s): vii
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  • Schedule at a glance

    Publication Year: 2010 , Page(s): viii - ix
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  • Keynote speech I: Fluctuation control for plasma nanotechnologies

    Publication Year: 2010 , Page(s): xii - xvi
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1497 KB) |  | HTML iconHTML  

    Recent progress in nano-materials has made them attractive for an increasing number of their applications such as electronics, medical components, fillers, catalysts, and fuel cells. Nanomaterials need structures and components which exhibit novel and significantly improved physical, chemical and biological properties, because of their nanoscale size, and hence fabrication of nanomaterials by bottom-up processes as well as that by top-down ones are required. A wide variety of nano-material and nano-system fabrication methods are required to be developed to realize complex nano-world. Plasma-based fabrication of nanomaterials and nanostructures is widely employed for top-down processes such as ULSI fabrication as well as bottom-up processes such as carbon nanotube production. We are exploring frontier science of interactions between plasmas and nano-interfaces by focusing on novel features such as fluctuations of interactions due to the nanometer scale. Plasma processing based on the science realizes highly precise top-down processes by suppressing fluctuations and well controlled self-organized bottom-up processes by controlling fluctuations. We aim to bring about an explosive development of fabrication technologies of nanomaterials and nanostructures. View full abstract»

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  • Keynote speech II

    Publication Year: 2010 , Page(s): xvii
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    Provides an abstract of the keynote presentation and a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings. View full abstract»

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  • A feature-oriented method for product line software engineering [Tutorial]

    Publication Year: 2010 , Page(s): xviii
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    Summary form only given, as follows. Over the last decade or so, software product line engineering has emerged as one of the most promising software development paradigms in drastically increasing the productivity of IT-related industries ways to meet diverse needs of the global market most effectively and efficiently and to become competitive. To be able to engineer application software for a product line, the application domain of the product line must first be understood in terms of application family's commonality and variability. View full abstract»

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  • WIE symposium: WIE session panel discussion on “women's career development in Asian countries”

    Publication Year: 2010 , Page(s): xix
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  • Technical program

    Publication Year: 2010 , Page(s): xx - xlvi
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  • Authors index

    Publication Year: 2010 , Page(s): xlvii - liv
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  • Inverter-based photovoltaic distributed generations: Modeling and dynamic simulations

    Publication Year: 2010 , Page(s): 7 - 12
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (551 KB) |  | HTML iconHTML  

    This paper aims to investigate the impact of installing photovoltaic distributed generations (PVDGs) in distribution systems. Detail model of PVDGs in current control mode are discussed. Dynamic responses during abnormal events (e.g., voltage sag and three-phase fault) are investigated. Impact on operation of protection devices are analyzed and depicted by two dimensional plots of R-X trajectory. Comparative analysis on installation of DG in distribution systems between PVDGs in current control mode and synchronous machine DGs are discussed. Conclusion can be drawn from simulations that fault current of PVDGs in current control mode is significantly lower than the synchronous machine DGs. View full abstract»

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  • Robust hybrid anti-islanding method for inverter-based distributed generation

    Publication Year: 2010 , Page(s): 13 - 18
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1083 KB)  

    This paper proposes a robust hybrid anti-islanding method for Inverter-based Distributed Generation (DG). This method is based on Active and passive detection techniques. Active anti islanding technique generates disturbances at the output of the distributed generation by Positive feedback and Continuous feedback signal injection which is based on DQ implementation. On the other hand passive anti islanding technique detects islanding by measuring voltage, frequency, active and reactive power and total harmonic distortion (THD). This technique uses resistive, capacitive and inductive connected in parallel RLC load and compares the performance of the technique with and without the controller. This method of control is shown to be robust, able to detect islanding under different types of loads, and fast in response. Possible islanding conditions are simulated and verified with full analysis. View full abstract»

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  • A switched-capacitor based embedded DC-DC buck converter for high power efficiency and high power density

    Publication Year: 2010 , Page(s): 19 - 24
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (861 KB) |  | HTML iconHTML  

    In this paper we propose a controlled cross-coupled switched-capacitor based embedded DC-DC buck converter based on non-overlapping rotational time interleaving switching scheme and frequency control regulation. Proposed converter uses low swing internal signals to control half of the switches. In addition to reduction of switching power loss, the low swing control signals help to use smaller switches and reduce power loss in the converter. The non-overlapping rotational time interleaving switching scheme helps to eliminate shoot through loss during switching transition and improve power efficiency further. In addition, output ripple noise is reduced by this switching scheme. On the other hand frequency control regulation helps to maintain high power efficiency over a wide range of load current. Proposed converter is implemented in 0.18 μm CMOS process to get 1.3 V-1.6 V regulated output from 3.3 V input supply. Peak power efficiency of the converter is 87% while power density is 0.5Watt/mm2 for 79% power efficiency. Output ripple is 8 mV for 25 mA load current for 1.35 V regulated output. View full abstract»

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  • Dynamic characteristics of digitally controled conveter with pole-zero-cancellation techique

    Publication Year: 2010 , Page(s): 25 - 30
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (461 KB) |  | HTML iconHTML  

    Recently, the performance of the DSP and FPGA is developed remarkably. So, fully digital control is enabled in switch mode power supplies. However, in many cases, the control system is built by very complicatedly and very difficult theories such as the adaptive control. Furthermore, in most popular PID control, its design method of the parameters is not clear, so derivation of the optimal parameters is very difficult. This paper proposes the interesting control technique which is cancelled the transfer function of the converter by using pole-zero-cancellation method. This technique is very simple and easy to stability design. View full abstract»

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  • State observer with stator resistance and back-EMF constant estimation for sensorless PMSM

    Publication Year: 2010 , Page(s): 31 - 36
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2202 KB) |  | HTML iconHTML  

    Recently, sensorless controls, which eliminate position and speed sensors in a permanent magnet synchronous motor drive, have been much studied. Most sensorless control algorithms are based on the back-EMF and speed estimations which are obtained from the voltage equations. Therefore, the sensorless control performance is largely affected by the parameter errors of a motor. This paper investigates an improved state observer with the parameter error compensation for the speed sensorless control of a permanent magnet synchronous motor. The proposed parameter estimation is obtained through the LMS algorithm minimizing the performance function of d- and q- axis current errors. The performance of the proposed algorithm is verified through the simulation and experimentation. View full abstract»

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  • Sliding mode observer with parameter estimation for sensorless induction motor

    Publication Year: 2010 , Page(s): 37 - 41
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    Variable-speed drives are being continually innovated. Recently, sensorless induction motor drives have been much studied due to several advantages, and various sensorless algorithms for an induction motor drive have been proposed. Most sensorless control algorithms are based on the flux and speed estimations which are obtained from the voltage equations. Therefore, the sensorless control performance is largely influenced by the parameter errors of a motor. This paper investigates an improved sliding mode observer with the parameter error compensation for the speed sensorless control of an induction motor. The proposed parameter estimation is obtained from the error between the measured and decoupled currents. The performance of the proposed algorithm is verified through the simulation and experimentation. View full abstract»

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  • Power transfer capability enhancement with multitype FACTS controllers using particle swarm optimization

    Publication Year: 2010 , Page(s): 42 - 47
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (274 KB) |  | HTML iconHTML  

    In this paper, particle swarm optimization (PSO) is proposed to determine the optimal allocation of multitype FACTS controllers to enhance power transfer capability of power transactions between source and sink areas in power systems. The particularly optimal allocation includes optimal types, locations, and parameter settings. Three types of FACTS controllers including unified power flow controller (UPFC), thyristor-controlled series capacitor (TCSC), and static var compensator (SVC) are used in this study. The objective function is formulated as maximizing the benefit to cost ratio. The benefits mean increasing total transfer capability (TTC) with deducting system losses while the cost are the investment of FACTS controllers installation. Power transfer capability determinations are calculated based on optimal power flow (OPF) technique. Test results on the modified IEEE 30-bus system from PSO are compared with those from evolutionary programming (EP). The results show that PSO can be used to determine the optimal allocation of multitype FACTS controllers. The optimally placed OPF with FACTS controllers using PSO enhance higher power transfer capability than those from EP. Moreover, PSO gives higher benefit to cost ratio and faster convergence than EP for all transfer areas. Therefore, this installation is worthwhile and beneficial for the decision making of investment costs and further expansion plans. View full abstract»

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  • A Z-source inverter accepting rapid reverse current flow

    Publication Year: 2010 , Page(s): 48 - 53
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (969 KB) |  | HTML iconHTML  

    This paper proposes a bi-directional Z-source inverter which has the reduced voltage stress on the circuit elements when the reverse current flow occurs. A Z-source inverter has a unique impedance network between the inverter bridge and the voltage source, which can boost the input voltage. A bidirectional Z-source inverter for electric vehicles has the state which the inductor currents direction chages rapidly at the instant time when the power flow is switched to the reverse power flow. This phenomenon may cause a rapid voltage increase on the circuit elements. The proposed circuit prevents the rapid change of the inductor current with only one passive device. The operation of the proposed inverter has been confirmed with PSIM simulation and in the circuit experiments. View full abstract»

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  • Two high speed brushless DC motors of different rotor configuration

    Publication Year: 2010 , Page(s): 54 - 58
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1086 KB) |  | HTML iconHTML  

    This paper presents two high speed brushless DC (BLDC) prototype motors: one is related to the surface-mounted permanent magnet (SPM) rotor, the other to the interior permanent magnet (IPM) rotor. The IPM rotor is a combination of magnets magnetized in tangential direction and in radial direction. As for the two prototype motors, the magnetic field distribution in the air gap calculated by 2D finite element analysis (FEA), the back electromotive force (EMF) waveforms obtained by 2D FEA and test, and the test speed-torque curves are compared respectively. The comparison results suggest that the leak flux in the IPM rotor reduces the air gap flux per pole and that the no-load speed and the speed-torque curve slope of the IPM motor are much greater than the no-load speed and the speed-torque curve slope of the SPM motor. View full abstract»

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  • Control of three phase cascaded multilevel inverter using various novel multicarrier pulse width modulation techniques

    Publication Year: 2010 , Page(s): 59 - 64
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (493 KB) |  | HTML iconHTML  

    In this paper, various novel pulse width modulation techniques are analysed, which can enhances the output voltages from five level inverter to multilevel topologies. Multilevel inverters are important for power electronics applications such as flexible ac transmission systems, renewable energy sources, uninterruptible power supplies and active power filters. Three methodologies adopting the constant switching frequency, variable switching frequency multicarrier, phase shifted carrier pulse width modulation concepts are proposed in this paper. The above pulse width modulation techniques analyses by switching frequency optimal methodology. This methodology strategy enhances the output voltages for three phase cascaded multilevel inverter. Field programmable gate array has been chosen to implement the pulse width modulation due its fast proto typing, simple hardware and software design. Simulation and Experimental results are provided. View full abstract»

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  • An 800 volts high voltage interconnection level shifter using Floating Poly Field Plate (FPFP) method

    Publication Year: 2010 , Page(s): 71 - 74
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (305 KB) |  | HTML iconHTML  

    An 800V LDMOS high voltage level shifter circuit using Floating Poly Field Plate (FPFP) method is proposed in this paper. In conventional structure, breakdown voltage drops for almost 65-70% from the original breakdown while crossing the High Voltage Interconnection (HVI) metal line over the high-voltage p-n junction. Compared to the conventional method, FPFP method would drastically reduce the influence of the interconnection, from 67% to less than 10% Furthermore, the study of HVI effect, different FPFP design scheme, FPFP length variation, and mask design layout consideration will be discussed in this paper. View full abstract»

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