[1] "Proceedings of the 1996 ieee 11th annual power electronics conference and exposition, apec'96. Part 2 (of 2)," in




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[1] "Proceedings of the 1996 ieee 11th annual power electronics conference and exposition, apec'96. Part 2 (of 2)," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 509.


The proceedings contains 70 papers from the IEEE Conference on Applied Power Electronics. Topics discussed include: three phase power factor control; AC motor drives; electronic ballasts; distributed power systems; uninterruptible power systems; passive components for power electronics; single phase power factor correction; hard-switched DC-DC converters; utility interfaces; switched reluctance motor drives; and distributed power components.

[2] "Proceedings of the 1996 ieee 11th annual applied power electronics conference and exposition, apec'96. Part 1 (of 2)," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 506.


The proceedings contains 76 papers from the IEEE Applied Power Electronics Conference and Exposition. Topics discussed include power electronic marketing and manufacturing, modeling and control of power converters, single phase power factor correction topologies, inverters and amplifiers, semiconductor devices and applications, low power soft switched converters, electromagnetic interference and filtering, AC motor controls, high frequency magnetics, and high power soft-switched power converters.

[3] J.-W. Ahn, Y.-J. An, C.-J. Joe, and Y.-M. Hwang, "Fixed switching angle control scheme for srm drive," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 963.


As the current shape of a switched reluctance motor (SRM) is of pulse type and changed by the motor parameters and drive conditions, the influences on the drive performances according to control method are severe than other types of motors. In this paper, a fixed switching angle control scheme with flat-topped current is proposed and tested. It is derived from the conditions that the phase current of an SRM is to be flat-topped at various drive conditions, considering the saturation effect of magnetic circuit. Experimental tests are executed to verify the proposed excitation method. This drive system is easy to commutate, advantageous to reduce torque ripple, and appropriate for high efficiency drive.

[4] C. W. Armstrong, "Improving customer-supplier relationships, an outsider's view," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 3.


Users and suppliers should share a common goal: the successful installation of power electronics equipment. This equipment is often expensive, generally sensitive and always important to the customer. If it contains state-of-the-art electronics, it will require not only more thoughtful preparation of specifications, but a great deal more consideration of the electrical environment into which the equipment will be placed. Customers need to be more familiar with their electrical systems. By being aware and asking questions prior to the sale, the customer can take steps to remedy or mitigate the environmental effects upon purchase. Manufacturers can learn from their customers and incorporate the feedback into subsequent product applications.

[5] R. Asensi, R. Prieto, J. A. Cobos, O. Garcia, and J. Uceda, "Cad tool for magnetic components modeling," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 427.


A tool for generating models for magnetic components is presented in this work. The aim of this tool is to make easy the generation of high accuracy models. It is not necessary that the user knows how to generate the model, the tool generates it by itself. Several modeling accuracy levels are provided by the tool. The effects that should be included in a model for high frequency magnetic components are also commented. A model which includes all these effects is also presented. The model is generated by means of a FEA (Finite Element Analysis) tool, but the model generation is automatic, no user interaction with the FEA tool is necessary. The accuracy of the tool has been checked by generating models for several magnetic components and comparing their behavior with actual measurements.

[6] C. A. Ayres and I. Barbi, "Power recycler for dc power supplies burn-in test: Design and experimentation," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 72.


Conventionally the burn-in test of DC power supplies uses resistors as load. Consequently, all the energy involved is lost by heating, provoking still an additional energy waste with the air conditioning system. The power recycler is a power converter that replaces the resistors load banks in the burn-in test of DC power supplies with the advantage that most of the energy is sent back to the utility grid with low THD and quasi-unitary power factor. The economical benefits due to energy savings are evident and contribute in reducing the final cost of the equipment. Besides, the power recycler is totally agreeable to the world concern about ecology and energy conservation. This paper analyses the proposed solutions in recent literature and presents a new architecture for the implementation of a power recycler for DC power supplies burn-in tests. The proposed circuit is regulated by conventional integrated circuits: PWM and power factor controllers. Circuit operation, design characteristics, simulation and experimental results of a 2 kW prototype are provided in the paper.

[7] D. Balocco and C. Zardini, "Half-wave quasi-resonant zcs flyback converter as an automatic power factor preregulator: An evaluation," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 138.


The flyback topology presents several advantages over the popular boost configuration for the design of power factor preregulators. In particular, the transformer provides input-output isolation and the output may be a low-voltage DC bus as needed in distributed power supply systems. In this paper, we show that a QR-ZCS flyback converter can provide automatic line current shaping. Experimental results taken from a 150 W prototype validate the theoretical analysis.

[8] P. M. Barbosa and I. Barbi, "Inga converter: A new single-switch flyback-current-fed topology," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 843.


A novel DC-DC converter is presented, whose significant advantages are the single power switch, single input inductor, purely capacitive output filter, isolation and operation at constant frequency in a conventional pulse width modulation scheme. The new converter is suitable to operate over a very wide input voltage range and can be employed in power factor correction and multiple output power supply. Theoretical analysis and experimental results were taken from the converter rated at 300 W/50 KHz.

[9] V. Belaguli and A. K. S. Bhat, "Operation of the lcc-type parallel resonant converter as a low harmonic rectifier," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 131.


A 1-φ high frequency transformer isolated ac-to-dc controlled rectifier with low line current harmonic distortion using a variable frequency controlled LCC-type (or series-parallel) resonant converter (SPRC) is presented. A simple analysis and design procedure is used for designing the converter for low line current harmonic distortion and high power factor operation. The converter performance characteristics have been verified with SPICE3 simulations (without active control) and experimental prototype SPRC (rated at 150 W, with and without active control, for variation in load as well as line voltage). When operated with active current shaping, this converter operates in zero-voltage-switching mode for complete range, maintaining power factor close to unity with low line current distortion and low peak current compared to parallel resonant converter.

[10] C. A. Bendall and W. A. Peterson, "Ev on-board battery charger," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 26.


A battery charger for electric vehicles is described. This charger is designed to provide the minimum recharge time by completely utilizing the available power sources. Charging rates up to 10 kW are supported. The required external infrastructure is also minimized so that charging may safely occur without specialized equipment. The power sources utilized are as flexible as possible to permit charging at as many places as possible. Additionally a DC power source, such as another EV, can be used as the power source permitting safe energy transfer between vehicles. The charging circuitry is lightweight and small, 37 pounds and 720 cubic inches, since the charger is on board the vehicle. Efficiency has been optimized, to reduce the need for heavy heat sinks and to maximize the energy available for charging. A microprocessor controls the charging process and tracks state of charge for several battery electrochemistries.

[11] S. Ben-Yaakov, M. Gulko, and A. Giter, "Simplest electronic ballast for hid lamps," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 634.


The Resonant Forward-Flyback (RFF) inverter is presented, analyzed theoretically and tested experimentally. It is shown that the inverter can be designed to operate under Zero Voltage Switching (ZVS) conditions and that it acts as a current source, features that are highly compatible with HID lamp ballasting. The design guidelines and the detailed analytical expressions developed in this study were verified by computer simulation and hardware implementation. The experimental results of the study demonstrate that the arc of small 35 W and 70 W MHD lamps can be stabilized by the proposed RFF ballast when operated at the 300 kHz to 400 kHz switching frequency range and applying about 20% FM modulation. Considering the fact that the proposed ballast includes only one switching device, one magnetic component and one resonant capacitor, the RFF inverter is most likely the simplest ballast topology possible.

[12] S. Ben-Yaakov and G. Rahav, "Average modeling and simulation of series-parallel resonant converters by spice compatible behavioral dependent sources," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 116.


A new methodology for developing average models of resonant converters is presented and verified against cycle by cycle simulation. The proposed modeling approach applies the concept of Rac(t) which represent the instantaneous effective load of the resonant network. Unlike the treatment given in previous studies, the value of Rac is evaluated here dynamically as a function of the temporal low-frequency-average of other relevant variables. Once defined, the model can be used as is to run steady state (DC), large signal (transient) and small signal (AC) simulations on any modern circuit simulators. The proposed methodology was used to develop a behavioral model of a series-parallel resonant converter. Excellent agreement was found between simulation by the proposed model and cycle by cycle simulation.

[13] C. Blanco, M. Alonso, E. Lopez, A. Calleja, and M. Rico, "Single stage fluorescent lamp ballast with high power factor," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 616.


The steady state operation modes and the commutation zones of a single stage, high power factor ballast are studied. The design criteria to allow the ballast to operate at the optimum soft switching conditions are given. A control circuit is also proposed. High efficiency is achieved by soft switching. Experimental results verify the theoretical study.

[14] V. Blasko and V. Kaura, "Novel control to actively damp resonance in input lc filter of a three phase voltage source converter," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 545.


The Voltage Source Converter (VSC) provides constant/controllable DC bus voltage, regenerating capability, controllable power factor and nearly sinusoidal input current. If an input LC filter is added, it prevents pollution of the utility with a current ripple due to the PWM switching. A novel control strategy for actively damping high frequency resonances (above 1.5 kHz) in the input LC filter is presented. No additional sensors to the standard VSC are required. Theoretical results of the analysis and simulation are experimentally verified.

[15] S. Bolognani and M. Zigliotto, "Novel digital continuous control of svm inverters in the overmodulation range," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 219.


A novel technique for Space Vector Modulation (SVM) inverters in the overmodulation range is presented. A unique algorithm manages the transition from the onset of overmodulation to six-step operation. The technique is suitable for a very simple digital implementation; experimental results, obtained by a DSP board, are also included in the paper.

[16] L. Borle, "Four quadrant power flow in a ramptime current controlled converter," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 898.


A three phase bidirectional ac-dc converter using the novel ramptime current control method is described. Simulation results and a study into the effects of the current regulator `phase' on the ac and dc current ripple are presented. Prototype experimental results show current harmonics below 1% THD. A field installation of the converter is shown to independently source real power into the grid, while providing reactive power grid voltage support.

[17] L. J. Borle and C. V. Nayar, "Ramptime current control," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 828.


Ramptime current control is a new robust technique for directly controlling the inductor current in switched power converters. It is largely invariant with respect to circuit parameters and system voltages. Ramptime is a sliding mode method producing zero average current error (ZACE) in each switching period with a controlled switching frequency band. The converter transient response, ripple current and switching frequency band are discussed. Simulation and experimental results showing negligible low order harmonics are presented for a single phase ac-dc converter.

[18] R. R. Boudreaux and R. M. Nelms, "Comparison of mosfets, igbts, and mcts for solid state circuit breakers," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 227.


Circuit breakers have traditionally employed mechanical methods to interrupt excessive currents. Semiconductor advances in power electronics have generated interest in replacing these mechanical circuit breakers with solid state equivalents. Advantages of solid state circuit breakers may include faster fault interrupting, fault current limiting, increased repeatability and reliability, no arc to contain or extinguish, and intelligent power control. This paper provides a comparison of three power electronic device families and their suitability to operate in solid state circuit breaker applications up to 600 volts and 50 amperes.

[19] J. S. Bowers, "Characterization of reconstituted mica paper capacitors used in high voltage and high temperature power electronics applications," in Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1996, pp. 737.


The purpose of this paper is to describe the characteristics of reconstituted mica paper capacitors that are designed and manufactured for use in high voltage and high temperature power electronics applications. The applications; design and construction; electrical, environmental, and physical characteristics; and reliability of this type of capacitor will be described.

[20] A. Brockmeyer, "Experimental evaluation of the influence of dc-premagnetization on the properties of power electronic ferrites," in
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