Topic
PWM rectifier
About: PWM rectifier is a research topic. Over the lifetime, 2254 publications have been published within this topic receiving 25614 citations.
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18 Sep 2009
TL;DR: In this paper, a novel fuzzy logic controller (FLC) for three-phase PWM rectifier is presented, which improves the robustness of the system and also improves the steady state precision and dynamic performance.
Abstract: This paper presents a novel fuzzy logic controller (FLC) for three-phase PWM Rectifier.The fuzzy logic controller is employed in the outer voltage loop. In order to improve the performances of current loop, the antiwindup PI controller of inner current controller is used instead of the traditional PI controller. The complete control scheme of the three-phase PWM Rectifier is implemented in real time using TMS320LF2812 digital signal processor. The simulation and experiment are carried out for the proposed system. The performances of the proposed FLC-based three-phase PWM rectifier are investigated. The results show that the proposed FLC can not only enhance the robustness of the system, but also improve the steady-state precision and dynamic performance.
4 citations
01 Jan 2009
TL;DR: In this article, a hybrid nonlinear control method combining the merits of sliding mode control, input and output linearization method, and space vector pulse width modulation (SVPWM) control method was proposed.
Abstract: The performance of the three-phase PWM rectifier based on conventional single control method couldn’t meet the increasing practical requirement.A novel hybrid nonlinear control method was proposed.The control method combining the merits of sliding mode control,input and output linearization method,and space vector pulse width modulation(SVPWM) control method.Using sliding mode control method,the outer voltage control loop was set up.The inner current loop is based on the input and output linearization control method.The control signals are modulated by SVPWM technology.The closed-loop controlled system has the features of global stability,fast tracking of DC-bus voltage command with zero steady-state error,strong robust to the disturbance of load and system parameter uncertainties,decoupled control of d and q current loops,sinusoidal current wave,lower harmonic distortion,unity power factor,high maximum output voltage and constant switching frequency.The validity and superiority of the proposed control scheme were verified by digital simulation and experimental results.
4 citations
03 Mar 2013
TL;DR: The results show that the three-phase PWM voltage source rectifier based on the deadbeat control in stabilizing DC voltage, control the AC current, etc, it has good steady-state and dynamic performance.
Abstract: Dynamic response slow and DC voltage fluctuation when traditional current inner loop controller based on dq transformation applications in three-phase PWM voltage source rectifier (VSR). To these shortcomings, firstly this paper established discrete mathematical model of VSR, derived deadbeat control strategies based on deadbeat control theory for VSR. Secondly, design a double-closed-loop controller with current inner loop and voltage outer loop for the system. Finally, set up a Matlab/Simulink simulation platform of three-phase PWM voltage source rectifier to verify the theoretical analysis results. The results show that the three-phase PWM voltage source rectifier based on the deadbeat control in stabilizing DC voltage, control the AC current, etc, it has good steady-state and dynamic performance. The control method is simple, easy to implement, and has a certain practical value. Keywords-PWM rectifier; deadbeat control; dual closed-loop control
4 citations
01 May 2022
TL;DR: In this article , the sliding mode regulator for a three-phase PWM rectifier is presented, which is based on data from two or three line current sensors and a DC link voltage sensor, as well as the development of the most modern network voltage controllers.
Abstract: Pulse width modulation (PWM) rectifiers are among the best solutions for improving the electrical power transfer quality from a source to a receiver. In fact, some authors have presented several methods for controlling the three-phase PWM rectifier and eliminating total harmonic distortion to achieve an uncontaminated system operating within a unit power factor. This article focuses on the sliding mode method, which is based on data from two or three line current sensors and a DC link voltage sensor, as well as the development of the most modern network voltage controllers, which include a sliding mode regulator for the system. The simulation results demonstrate the viability and reliability of the observer's sliding mode methodology in a transient and stable state with a quasi-sinusoidal low total harmonic distortion (THD) line current source and a good maintenance of the reference voltage on the same day, in the DC side of the PWM rectifier, in accordance with standards.
4 citations
16 Jun 2005
TL;DR: In this article, the sensitivity of the phase tracking method to the voltage phase asymmetry is also presented, and the control was performed on a rapid prototype system for power electronics control according to A. Linder (2001).
Abstract: Standard drive systems are usually connected to the utility grid using six pulse diode rectifiers. This kind of the rectifiers has many disadvantages, for example non sinusoidal supply currents, non unity power factor, and the DC-link voltage cannot be controlled. To overcome these disadvantages the use of controlled PWM rectifiers seems to be appropriate. There are many control schemes proposed for active rectifiers. One of the most popular schemes is the voltage oriented control (VOC) method. It is easy to implement and simple to analyze especially because of its analogy to the well-known field oriented control (FOC) for the synchronous and asynchronous drives. One of the problems connected with this method is the need for grid voltage measurement. Voltage measurement systems are costly and each failure in the measurement device can lead to the destruction of the PWM rectifier. Due to these problems voltage estimation methods often are implemented. One of the many sensorless strategies, a phase tracking concept was presented on the PESC03 conference. The method proved to be robust to system parameter changes when being used for line current control. It was also successfully tested under the distorted voltage supply like over-voltage and under-voltage. After the presentation of the respective results on the PESC04 conference some questions arose from industry concerning the behavior of the sensorless PWM rectifier when one of the grid phase voltages disrupts. This paper shows the possible solution for this particular problem. The sensitivity of the phase tracking method to the voltage phase asymmetry is also presented. The control was performed on a rapid prototype system for power electronics control according to A. Linder (2001). Experimental results of the test are presented
4 citations