scispace - formally typeset
Search or ask a question
Topic

PWM rectifier

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


Papers
More filters
Journal ArticleDOI
TL;DR: In this article, a passivity based controller is used in PWM rectifier, the properties of PWM Rectifier is improved by using energy shaping and damping injection in passivity-based controller design.

4 citations

Book ChapterDOI
21 Nov 2016
TL;DR: A new direct power control of three-phase PWM rectifier based on intelligent techniques, where the conventional proportional integral controller is replaced by fuzzy logic controller (FLC) to adjust the dc bus voltage and the classical switching table is also replaced by a selector based on artificial neural networks (ANN) to generate the switching sequences of the P WM rectifier.
Abstract: This paper proposes a new direct power control (DPC) of three-phase PWM rectifier based on intelligent techniques, in order to improve the dynamic performances of the conventional direct power control, where the conventional proportional integral (PI) controller is replaced by fuzzy logic controller (FLC) to adjust the dc bus voltage and the classical switching table is also replaced by a selector based on artificial neural networks (ANN) to generate the switching sequences of the PWM rectifier. This new control approach allows to maintain the dc bus voltage, the instantaneous active and reactive power to their reference values and also to minimize their ripples. The dynamic performances of this control technique were verified using Matlab/Simulink software under different conditions of simulation. The obtained results present better performance in terms of precision, robustness and reduction of harmonic disturbances.

4 citations

Proceedings ArticleDOI
01 Oct 2013
TL;DR: In this paper, a voltage control method based on sliding mode active disturbance rejection theory was proposed to suppress the harmonic power and load disturbance effect to the DC bus voltage under the PWM asymmetrical grid voltage condition.
Abstract: In order to suppress the harmonic power and load disturbance effect to the DC bus voltage under the PWM asymmetrical grid voltage condition, a new voltage control method is proposed based on sliding mode active disturbance rejection theory. Sliding mode active disturbance rejection controller (ADRC) can control positive /negative-sequence current and exactly estimate coupling disturbance in PWM rectifier, then compensate for it, so that system external disturbance can be reduced. Simulation and experimental results show that this method can fast and not overshoot control to the output voltage, and suppress harmonics in power transmission and load changes to system effectively, keep the DC voltage steady and PWM rectifier working without interruption under unbalanced input voltages.

4 citations

Journal Article
Zhu Jian-lin1
TL;DR: In this article, a proportional-resonant (PR) control scheme with delay-less feed-forward for single-phase PWM rectifier is proposed, which consists of a proportionalregulator, a very fast angle estimator and a feed forward compensator without delay.
Abstract: A novel proportional-resonant(PR) control scheme with delay-less feed-forward for single-phase PWM rectifier is proposed in the paper.The controller consists of a proportional-regulator,a very fast angle estimator and a feed-forward compensator without delay.Compared with traditional PI control and multi-frequency proportional-resonant controller methods,the P+Resonant(PR) control structure is simple and can reduce control time delay significantly.The proposed delay-less feed-forward compensator uses the estimated and one-step predicted value of the source voltage and the source current to avoid the adverse effects caused by the one-step delay,measurement noise,and harmonic component of the source voltage in the feed-forward compensation process.The simulation results and experimental results verify the feasibility of the proposed control scheme in both the good sinusoidal reference tracking and the disturbance rejection.

4 citations

Journal Article
TL;DR: In this paper, a simplified current control under two-phase stationary frame is proposed, which takes the virtual admittance as the key control variable based on the balanced instantaneous power theory of three-phase PWM rectifier under unbalanced input voltage conditions, and applies the generalized integrator to realize zerosteady state error.
Abstract: Unbalanced input voltage leads to the increase of harmonic and loss in three-phase PWM rectifierAs the traditional solutions to it have relatively complex structure and large calculation load,a simplified current control under two-phase stationary frame is proposed,which takes the virtual admittance as the key control variable based on the balanced instantaneous power theory of three-phase PWM rectifier under unbalanced input voltage conditions,and applies the generalized integrator to realize zero-steady state errorThe virtual admittance control system is designed accordinglyMatlab simulation and experiments verify that,the control strategy can not only realize no-ripple voltage control and real-time controllable power factor under unbalanced three-phase voltage with its stable performance,but also need not to detect three-phase positive and negative sequence ac currents respectively,resulting in the improvement of system speedinessThe introduced generalized integrator also has simple discrete iterative algorithm to greatly reduce calculation time

4 citations


Network Information
Related Topics (5)
AC power
80.9K papers, 880.8K citations
83% related
Stator
112.5K papers, 814.8K citations
81% related
Electric power system
133K papers, 1.7M citations
79% related
Capacitor
166.6K papers, 1.4M citations
78% related
Control theory
299.6K papers, 3.1M citations
77% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202326
202267
202145
202095
2019133
2018112