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PWM rectifier

About: PWM rectifier is a research topic. Over the lifetime, 2254 publications have been published within this topic receiving 25614 citations.


Papers
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Proceedings ArticleDOI
09 Jun 1999
TL;DR: In this paper, the applicability of discontinuous modulation for a three-phase/switch/level PWM rectifier system is investigated and the increase of the effective pulse frequency is calculated analytically.
Abstract: In this paper the applicability of discontinuous modulation for a three-phase/switch/level PWM rectifier system is investigated. As an analysis of the voltage formation of the system shows, the clamping in intervals (in each case, of one bridge leg to one bus of the DC output circuit) being characteristic for discontinuous modulation can occur in regions lying symmetrically around the maxims of the related phase currents. This results in a maximum reduction of the switching power loss. The increase of the effective pulse frequency (as compared to continuous modulation for equal switching losses) made possible thereby is calculated analytically. Furthermore, by digital simulation the RMS value of the mains current harmonics resulting for discontinuous modulation and increased pulse frequency is determined in dependency on the modulation depth. Also, it is compared to the harmonic characteristic for harmonic optimal continuous modulation. The load on the power semiconductors and on the output capacitors (characterized by the RMS value and the amplitude of the low-frequency harmonics of the capacitor current) is included into the comparison of the modulation methods. Finally, the time shape of the phase modulation functions (to be provided for the control of the voltage formation of the system based on a subharmonic oscillation method) for discontinuous modulation is calculated and the control of the potential of the output voltage center point is discussed.

42 citations

Journal ArticleDOI
29 Jun 1992
TL;DR: In this paper, a real-time multi-DSP controller for a high-quality, six-valve, three-phase, current-source, unity power factor, PWM rectifier is discussed.
Abstract: The design of a real-time multi-DSP controller for a high-quality, six-valve, three-phase, current-source, unity power factor, PWM rectifier is discussed. With the decoupler preprocessor and the dynamic trilogic PWM trigger scheme, each of the three input currents can be controlled independently. Based on the a-b-c frame system control and the fast parallel computer control, the pole placement control method is implemented successfully to achieve fast response in the AC currents. The low frequency resonance in the AC filter LC networks has been damped effectively. The experimental results are obtained from a 1 kVA bipolar transistor current-source PWM rectifier with a real-time controller using three TMS320C25 DSPs. >

42 citations

Journal ArticleDOI
TL;DR: In this article, a three-phase PWM rectifier-inverter topology for UPS applications is proposed, which uses only nine IGBT devices for AC/AC conversion through a quasi d.c. link circuit.
Abstract: A novel three-phase PWM rectifier-inverter topology (Fig. 2) for UPS applications is proposed in this paper. The topology uses only nine IGBT devices for AC/AC conversion through a quasi d.c. link circuit. This converter topology features sinusoidal inputs and outputs, unity input power factor, and more importantly, low manufacturing cost. The operating principle of the converter is elaborated and a dedicated space vector modulation scheme is presented. The performance of the proposed converter is verified by experiments on a 5 kVA prototyping UPS system.

42 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed a unified robust zero-error tracking control scheme for constantvoltage-constant-frequency (CVCF) PWM converters to eliminate the tracking error in the presence.
Abstract: This paper proposes a unified robust zero-error tracking control scheme for constant-voltage-constant-frequency (CVCF) PWM converters to eliminate the tracking error in the presence. Based on the internal model principle, the proposed control scheme plugs a reference signal generator into the stable conventional feedback closed-loop system to accomplish zero error tracking of the dc or ac reference input. The design of the unified zero error tracking controller is systematically developed and the stability analysis of overall control system is discussed. Three examples of the proposed controlled CVCF converters, such as CVCF PWM inverter, boost-type PWM rectifier, and dc-dc PWM buck converter are studied to testify the validity of the proposed approach. Simulation and experimental results demonstrate satisfactory performance of the proposed unified robust zero error tracking controller even under parameter uncertainties and load disturbances.

41 citations

Proceedings ArticleDOI
17 May 2009
TL;DR: Design of a LCL filter by genetic algorithm (GA) and particle swam optimization (PSO) are presented in this paper and comparison of the two intelligent optimization methods are provided to prove that intelligent optimization are more effective and simple than traditional methods.
Abstract: Compared to traditional L filter, a LCL filter is more effective on reducing harmonic distortion at switch frequency. So it is important to choose the LCL filter parameters to achieve good filtering effect. This paper introduces some traditional design methods. Design of a LCL filter by genetic algorithm (GA) and particle swam optimization (PSO) are presented in this paper and comparison of the two intelligent optimization. Simulation result and calculate data are provided to prove that intelligent optimization are more effective and simple than traditional methods.

41 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202326
202267
202145
202095
2019133
2018112