# IEEE Transactions on Energy Conversion

## Filter Results

Displaying Results 1 - 21 of 21

Publication Year: 2008, Page(s):C1 - C2
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• ### IEEE Transactions on Energy Conversion publication information

Publication Year: 2008, Page(s): C2
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• ### Variable Frequency Transformer—Concept and Electromagnetic Design Evaluation

Publication Year: 2008, Page(s):989 - 996
Cited by:  Papers (17)
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Variable frequency transformer (VFT) is a controllable bidirectional transmission device that can transfer power between asynchronous networks. The construction of VFT is similar to conventional asynchronous machines, where the two separate electrical networks are connected to the stator and rotor respectively. Electrical power is exchanged between the two networks by magnetic coupling through the... View full abstract»

• ### Determination of NEMA Design Induction Motor Parameters From Manufacturer Data

Publication Year: 2008, Page(s):997 - 1004
Cited by:  Papers (21)
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This paper proposes a simple method of determining the equivalent circuit parameters of National Electrical Manufacturers Association (NEMA) design A and B types of induction motors from standard manufacturer data such as rated output power, starting torque, breakdown torque, and efficiency and power factor at rated output power. A set of nonlinear equations for various quantities is first derived... View full abstract»

• ### A Reconfigurable Motor for Experimental Emulation of Stator Winding Interturn and Broken Bar Faults in Polyphase Induction Machines

Publication Year: 2008, Page(s):1005 - 1014
Cited by:  Papers (18)
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The benefits and drawbacks of a 5-hp reconfigurable induction motor, which was designed for experimental emulation of stator winding interturn and broken rotor bar faults, are presented in this paper. It was perceived that this motor had the potential of quick and easy reconfiguration to produce the desired stator and rotor faults in a variety of different fault combinations. Hence, this motor was... View full abstract»

• ### Development of a Nonlinear and Model-Based Online Loss Minimization Control of an IM Drive

Publication Year: 2008, Page(s):1015 - 1024
Cited by:  Papers (16)  |  Patents (2)
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Among the numerous loss minimization algorithms, a loss-model-based approach offers a fast response without torque pulsations. However, it requires the accurate loss model and the knowledge of the motor parameters. Therefore, a technical difficulty in deriving the loss-model-based controller (LMC) lies in the complexity of the full loss model and the online motor parameter adaptation. In an effort... View full abstract»

• ### An Adaptive Nonlinear Controller for DFIM-Based Wind Energy Conversion Systems

Publication Year: 2008, Page(s):1025 - 1035
Cited by:  Papers (33)
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An adaptive nonlinear controller for wind energy doubly fed induction machines is introduced in this paper. The proposed controller is based on the feedback linearization technique and includes a disturbance observer for estimation of parameter uncertainties. Estimated uncertainties values are injected in order to construct the control law, improving in this way the system's performance. The contr... View full abstract»

• ### Ride-Through Control of a Doubly Fed Induction Generator Under Unbalanced Voltage Sags

Publication Year: 2008, Page(s):1036 - 1045
Cited by:  Papers (108)
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This paper deals with the control of doubly fed induction generators to ride through unbalanced voltage sags. A control strategy is proposed by choosing certain current reference values in the positive and negative sequences so that the torque and the DC voltage are kept stable during such unbalanced sags. Both rotor- and grid-side converters are considered, detailing the control scheme of each co... View full abstract»

• ### Performance of a Five-Phase Induction Machine With Optimized Air Gap Field Under Open Loop $V$/$f$ Control

Publication Year: 2008, Page(s):1046 - 1056
Cited by:  Papers (44)
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The paper assesses the steady-state performance of a five-phase induction machine fed by a modified open loop constant volt/hertz (V/f) control method, which imposes a trapezoidal induction waveform in the air gap under varying load conditions. The trapezoidal air gap induction is achieved through the imposition of an appropriate combination of the third harmonic and fundamental stator voltages. T... View full abstract»

• ### A Discontinuous PWM Method for Balancing the Neutral Point Voltage in Three-Level Inverter-Fed Variable Frequency Drives

Publication Year: 2008, Page(s):1057 - 1063
Cited by:  Papers (27)
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The paper describes a new discontinuous carrier-based pulsewidth modulation (PWM) method for use in variable frequency drives (VFD) driven by three-level inverters. The method introduces three different switching patterns for the full range of operating speeds. Depending on the actual operating speed, the proposed algorithm is developed to select the most suitable PWM switching pattern that improv... View full abstract»

• ### Control Algorithm for Coordinated Reactive Power Compensation in a Wind Park

Publication Year: 2008, Page(s):1064 - 1072
Cited by:  Papers (17)
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The penetration level of wind energy is continuously growing, and it is especially relevant in European countries such as Denmark, Germany, and Spain. For this reason, grid codes in different countries have been recently revised, or are now under revision in order to integrate this energy in the network taking into account the security of supply. This paper is related to reactive compensation, whi... View full abstract»

• ### Enhanced Control and Operation of DFIG-Based Wind Farms During Network Unbalance

Publication Year: 2008, Page(s):1073 - 1081
Cited by:  Papers (69)
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This paper investigates the control and operation of doubly fed induction generator (DFIG)-based wind generation systems under unbalanced voltage conditions. DFIG system behaviors under unbalanced voltage are analyzed and different control targets are discussed. A new rotor current control strategy containing a main controller and an auxiliary controller is proposed. The main controller is impleme... View full abstract»

• ### A Multiagent-System-Based Intelligent Reference Governor for Multiobjective Optimal Power Plant Operation

Publication Year: 2008, Page(s):1082 - 1092
Cited by:  Papers (24)
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A large-scale power plant requires optimal set points, namely references, in several control loops for multiobjective optimal operation. In a 600-MW oil-fired drum-type boiler power unit, the set points considered are for the main steam pressure and reheater/superheater steam temperatures. The set points should be mapped with the varying unit load demand and satisfy the conflicting requirements in... View full abstract»

• ### Analysis of a Fuel Cell Durability Test Based on Design of Experiment Approach

Publication Year: 2008, Page(s):1093 - 1104
Cited by:  Papers (18)
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The results of a durability test performed during 1000 h on a proton exchange or polymer electrolyte membrane (PEM) fuel cell are analyzed using some well-suited design of experiment techniques. The response surface methodology is adopted to model the performance degradation over ageing time from various load current--fuel cell voltage curves recorded at regular time-spaced intervals and for vario... View full abstract»

• ### A Modified MPPT Scheme for Accelerated Convergence

Publication Year: 2008, Page(s):1105 - 1107
Cited by:  Papers (42)
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Fast tracking of photovoltaic maximum power point (MPP) is accomplished by a linear control loop that emulates a nearly matched load line. Thus, the response time of conventional MPP trackers is significantly accelerated. View full abstract»

• ### An Electrical Approach to Mechanical Effort Reduction in Wind Energy Conversion Systems

Publication Year: 2008, Page(s):1108 - 1110
Cited by:  Papers (7)
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A strategy for controlling wind farms composed of variable-speed machines is considered in this paper. It is shown that mechanical efforts produced by wind gusts on individual machines can be reduced by means of a supplementary control signal coming from a centralized controller. This is done while the total wind farm power output is kept at the same value as in the absence of the proposed control... View full abstract»

• ### An Analytical Approach to Determine the Optimal Resistance for the Three-Series-Resistor Method for Induction Generator Connection

Publication Year: 2008, Page(s):1111 - 1113
Cited by:  Papers (1)
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This letter presents a set of analytical formulas to determine the optimal resistor size to be used in the three-series-resistor method of squirrel-cage induction generators connection. The analytical formulation is based on the short-circuit theory of induction machines. View full abstract»

Publication Year: 2008, Page(s): 1114
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Publication Year: 2008, Page(s): 1115
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• ### 2008 Index IEEE Transactions on Energy Conversion Vol. 23

Publication Year: 2008, Page(s):1116 - 1132
| |PDF (174 KB)
• ### IEEE Power Engineering Society information for authors

Publication Year: 2008, Page(s): C3
| |PDF (34 KB)

## Aims & Scope

The IEEE Transactions on Energy Conversion includes in its venue the research, development, design, application, construction, installation, operation, analysis and control of electric power generating and energy storage equipment (along with conventional, cogeneration, nuclear, distributed or renewable sources, central station and grid connection). The scope also includes electromechanical energy conversion, electric machinery, devices, systems and facilities for the safe, reliable, and economic generation and utilization of electrical energy for general industrial, commercial, public, and domestic consumption of electrical energy.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Juri Jatskevich
University of British Columbia