# IEEE Transactions on Power Electronics

## Filter Results

Displaying Results 1 - 21 of 21
• ### PWM-controlled SRC with inductive output filter at constant switching frequency

Publication Year: 1992, Page(s):289 - 295
Cited by:  Papers (8)
| | PDF (524 KB)

By using the PWM control scheme in the series resonant power converter (SRC) with inductive output filter, the converter can be operated at a constant frequency. This converter has lower switching loss than the PWM converter and better control characteristics than the ordinary SRC. Since the peak current in the present converter equals the load current, it has the lowest possible peak current stre... View full abstract»

• ### Modeling and improved current control of series resonant converter with nonperiodic integral cycle mode

Publication Year: 1992, Page(s):280 - 288
Cited by:  Papers (12)
| | PDF (792 KB)

A dynamic modeling and an improved current control technique for a series resonant power converter with nonperiodic integral cycle mode are proposed to overcome the disadvantages of an integral cycle mode-controlled series resonant converter. The internal operational characteristics, are investigated in detail and an improved current control technique is developed based on this analysis. Using the... View full abstract»

• ### Compensated carrier PWM synchronization: a novel method to achieve self-regulation and AC unbalance compensation in AC fed converters

Publication Year: 1992, Page(s):342 - 348
Cited by:  Papers (10)
| | PDF (624 KB)

The compensated carrier PWM synchronization (CCPS) method for AC-fed PWM power converters is presented. The method provides a solution to PWM converters fed by industrial power systems (IPSs). Such environments usually present unbalances and magnitude fluctuations of AC voltages. Those circumstances impair standard PWM techniques because low-order harmonics are produced and DC-link regulation is p... View full abstract»

• ### A discrete adaptive field-oriented induction motor drive

Publication Year: 1992, Page(s):411 - 419
Cited by:  Papers (15)
| | PDF (564 KB)

A discrete model reference adaptive controller (MRAC) is designed and implemented. This MRAC makes the performance of the field-oriented induction motor drives insensitive to parameter changes. Only the information of the reference model and the plant output are required. Hence, the proposed controller is easy to implement practically. For designing the proposed adaptive controller, the dynamic mo... View full abstract»

• ### A generic soft switching converter topology with a parallel nonlinear network for high-power application

Publication Year: 1992, Page(s):324 - 331
Cited by:  Papers (6)
| | PDF (472 KB)

A soft switching concept that derives from the resonant link and resonant pole power converters and combines the best features of resonant and hard switching converters is applied to a phase arm. The inductor of the resonant LC is designed to saturate, thus having effectively two inductance values: a very large value during the conduction period and a small value that is only active durin... View full abstract»

• ### A rugged soft commutated PWM inverter for AC drives

Publication Year: 1992, Page(s):385 - 392
Cited by:  Papers (15)  |  Patents (2)
| | PDF (656 KB)

A novel DC-DC power converter for variable-speed AC power drives using the zero-voltage switching technique is described. This converter combines the advantages of soft commutated inverters and those of conventional pulsewidth modulated (PWM) inverters. In the proposed scheme, the soft commutation reduces the constraints on the switches, and the PWM enables simple and efficient regulation of the p... View full abstract»

• ### Design of transcutaneous energy transmission system using a series resonant converter

Publication Year: 1992, Page(s):261 - 269
Cited by:  Papers (54)  |  Patents (1)
| | PDF (700 KB)

A full-bridge zero-voltage-switched series resonant power converter that transfers 12-48 W of regulated power across a large, variable air gap has been designed and built. This converter can power an artificial heart through intact skin by utilizing a transformer with an air gap of 1-2 cm between the primary and the secondary. The secondary winding would be implanted under the skin, and the primar... View full abstract»

• ### A parallel resonant converter with postregulators

Publication Year: 1992, Page(s):296 - 303
Cited by:  Papers (4)  |  Patents (5)
| | PDF (688 KB)

A parallel resonant power converter (PRC) with postregulator(s) power synchronized to the primary switching frequency is investigated for discontinuous-conduction mode operation. It is analyzed with a magnetic amplifier, which blocks the rising edge of the secondary voltage, and with a synchronized buck regulator, which blocks part of the trailing edge of the secondary voltage waveform under the s... View full abstract»

• ### Optimal feed-forward compensation for PWM DC/DC converters with linear' and quadratic' conversion ratio

Publication Year: 1992, Page(s):349 - 355
Cited by:  Papers (40)  |  Patents (6)
| | PDF (440 KB)

An analytical procedure to optimize the feedforward compensation for any PWM DC/DC power converters is described. Achieving zero DC audiosusceptibility was found to be possible for the buck, buck-boost, Cuk, and SEPIC cells; for the boost converter, however, only nonoptimal compensation is feasible. Rules for the design of PWM controllers and procedures for the evaluation of the hardware-introduce... View full abstract»

• ### Multikilojoule inductive modulator with solid-state opening switches

Publication Year: 1992, Page(s):420 - 424
Cited by:  Papers (18)
| | PDF (368 KB)

A four-stage inductive storage XRAM (inverse MARX) circuit was used to amplify current and power. By means of switching action, individual inductors are charged in series and discharged in parallel to the load. A microprocessor controls the timing of the switches, which results in a predetermined load current waveform. The use of present asymmetric GTOs at much higher currents than rated allowed t... View full abstract»

• ### A unity power factor current-regulated SPWM rectifier with a notch feedback for stabilization and active filtering

Publication Year: 1992, Page(s):356 - 363
Cited by:  Papers (25)
| | PDF (856 KB)

A stand-alone, unity power factor, current-regulated sinusoidal pulsewidth modulated (SPWM) rectifier is described. The topology is based on the series connection of three four-valve single-phase bridges, which allows the conventional two-stage logic SPWM strategy to be used without interphase interference. The problems of stability and low harmonic waveform distortion are identified. Solutions ar... View full abstract»

• ### Digital control of an induction motor drive by a stochastic estimator and airgap magnetic flux feedback loop

Publication Year: 1992, Page(s):393 - 403
Cited by:  Papers (5)
| | PDF (692 KB)

An approach for the problem of airgap flux estimation in induction motors is presented. The Kalman filter algorithm is developed to provide an estimated state vector containing flux linkage components. The estimated fluxes are then used to implement a direct flux control loop through an inverter-fed AC drive scheme. The overall control system is developed around a digital unit based on a 16 bit mi... View full abstract»

• ### Frequency-domain analysis of series resonant converter for continuous conduction mode

Publication Year: 1992, Page(s):270 - 279
Cited by:  Papers (32)
| | PDF (748 KB)

Most previous analyses of a series resonant DC-DC power converter (SRC) have been performed in the time domain. A comprehensive frequency-domain analysis of the SRC for steady-state operation, along with experimental results is presented. Simple analytical design equations are derived for the basic performance parameters of the converter operating in the continuous conduction mode (CCM) using Four... View full abstract»

• ### Characteristics of load resonant converters operated in a high-power factor mode

Publication Year: 1992, Page(s):304 - 314
Cited by:  Papers (57)  |  Patents (7)
| | PDF (816 KB)

The performance of the parallel resonant power converter and the combination series/parallel resonant power converter (LCC converter) when operated above resonance in a high power factor mode are determined and compared for single phase applications. When the DC voltage applied to the input of these converters is obtained from a single phase rectifier with a small DC link capacitor, a relatively h... View full abstract»

• ### A discretized current control technique with delayed input voltage feedback for a voltage-fed PWM inverter

Publication Year: 1992, Page(s):364 - 373
Cited by:  Papers (39)
| | PDF (576 KB)

A current control technique for a voltage-fed PWM inverter is presented. The discretized state equation of an inverter and a load independent of operating conditions with the delayed input voltage feedback has been derived using the averaging concept. The discretized current controller is proposed to reduce the current error as fast as possible using the deadbeat control strategy and to stabilize ... View full abstract»

• ### Nonlinear capacitors in snubber circuits for GTO thyristors

Publication Year: 1992, Page(s):425 - 429
Cited by:  Papers (9)
| | PDF (296 KB)

Many applications with GTO thyristors require snubber circuits, at least for, turn-off. In achieving high switching frequencies there are conflicting design criteria for the snubber capacitor-losses versus timing conditions. Improvements to this situation are expected by employing nonlinear capacitors. Features of snubber circuits with nonlinear capacitors are described, and experimental results o... View full abstract»

• ### Rectifier for minimum line-current harmonics and maximum power factor

Publication Year: 1992, Page(s):332 - 341
Cited by:  Papers (55)  |  Patents (2)
| | PDF (884 KB)

Rectifier line current harmonics interfere with proper power system operation, reduce rectifier power factor, and limit the power available from a given service. The rectifier's output filter inductance determines the rectifier line current waveform, the line current harmonics, and the power factor. Classical rectifier analysis usually assumes a near-infinite output filter inductance, which introd... View full abstract»

• ### A pulse frequency modulated PWM inverter for induction motor drives

Publication Year: 1992, Page(s):404 - 410
Cited by:  Papers (17)
| | PDF (468 KB)

A PWM pulse pattern optimization method using pulse frequency modulation (PFM) is described. In conventional PWMs the pulse frequency is kept constant. In the proposed PFM, however, the pulse frequency is adjusted. The PFM technique is intended to not only reduce the magnetic acoustic noises of driven motors but also to improve the performance of sinusoidal inverters. The PWM pulse patterns are ba... View full abstract»

• ### Quasi-linear modeling and control of DC-DC converters

Publication Year: 1992, Page(s):315 - 323
Cited by:  Papers (26)
| | PDF (640 KB)

A quasi-linear approach is proposed for modeling and control of DC-DC power converters. The method presented is derived by perturbing an approximate large signal equation around a varying operating point in a reduced variable space. This differs from the usual practice of applying the perturbation technique around a fixed operating condition. In the proposed algorithm, the control equation and the... View full abstract»

• ### Techniques for the practical application of duality to power circuits

Publication Year: 1992, Page(s):374 - 384
Cited by:  Papers (31)
| | PDF (788 KB)

Techniques that simplify the application of duality to power circuits are presented. Duals are derived for ideal switches (including two- and four-quadrant switches) and semiconductor-controlled rectifiers (SCRs), transformers and coupled inductors, and capacitors. A collection of common topological structures and corresponding duals is also given. This library of dual relations allows even compli... View full abstract»

• ### Design considerations for p-i-n thyristor structures

Publication Year: 1992, Page(s):430 - 435
Cited by:  Papers (2)  |  Patents (2)
| | PDF (508 KB)

An analysis of a high-voltage gate turn-off (GTO) thyristor structure with a double-layered n base (p-i-n structure) is presented. From integration of Poisson's equation, an expression for the forward-blocking voltage at the onset of avalanche breakdown is obtained. Simple design criteria are developed to calculate the optimal thickness and doping density of the n base of a conventional pnpn struc... View full abstract»

## Aims & Scope

IEEE Transactions on Power Electronics covers fundamental technologies used in the control and conversion of electric power.

Full Aims & Scope