Vector Decoupling Control Strategy for Three-Phase Voltage Source PWM Rectifier

2013 ◽  
Vol 336-338 ◽  
pp. 450-453
Author(s):  
Jian Ying Li ◽  
Wei Dong Yang ◽  
Ni Na Ma
Keyword(s):  
Power Factor ◽  
Control Strategy ◽  
Reactive Power ◽  
Decoupling Control ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Unity Power Factor ◽  
Three Phase ◽  
Rotating Coordinates

In view of the fact that active power and reactive power have coupling relation, a novel vector decoupling control strategy is presented for three-phase voltage source PWM rectifier. In the paper, the power control mathematical mode of the PWM rectifier is deduced based on the mathematical model of rectifier in synchronous d-q rotating coordinates, and a new voltage feed forward decoupling compensation control strategy is proposed. The simulation results show that the voltage and current of the three-phase PWM rectifier have better respond preference, the current aberrance is smaller and the voltage is steady under the control strategy. The PWM rectifier can implement PWM commute with unity power factor, but also feed back the energy to AC side with unity power factor.

A Novel Control Strategy of PWM Rectifier

2013 ◽  
Vol 380-384 ◽  
pp. 290-293
Author(s):  
Wei Wang ◽  
Xin Chun Shi
Keyword(s):  
Dynamic Response ◽  
Reference Frame ◽  
Control Strategy ◽  
Control Method ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Three Phase ◽  
Dc Bus ◽  
Bus Voltage

Based on the mathematical model analysis of the three-phase voltage source PWM rectifier under abc reference frame and dq reference frame in this paper, a kind of three-phase voltage source PWM rectifier feed-forward decoupling control strategy is proposed. Dynamic response of DC bus voltage for PWM rectifier is very important, because higher response means little DC bus capacitor. An adaptive PI controller for the DC bus voltage was designed in this paper in order to improve the dynamic response. The experimental results indicate that this control method has good steady-state performance and fast dynamic response. For the reason of its simple, this control method has certain practical value.

Research on the PCHD Control Strategy for Three-Phase Voltage Source PWM Rectifier under Unbalanced Supply Voltage Condition

2014 ◽  
Vol 571-572 ◽  
pp. 959-964
Author(s):  
Feng Jiao Zhao ◽  
Jiu He Wang ◽  
Bai Le Zhang
Keyword(s):  
Control Strategy ◽  
Control Method ◽  
Supply Voltage ◽  
Orthogonal Transformation ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Three Phase ◽  
Unbalanced Voltage ◽  
Dynamic Performances

In order to improve the performance of the rectifier under unbalanced voltage condition, this paper adopts port-controlled Hamiltonian dissipation (PCHD) control strategy. On the basic of the mathematical model of the three-phase voltage source PWM rectifier, its PCHD model in synchronous dq coordinates was established by orthogonal transformation. The desired equilibrium point of the system was obtained according to the target of the design. The controller was designed with the method of interconnection and damping assignment, and the PI control method was introduced to restrain the steady-state error of DC side. Simulation results show that the designed control system has perfect static and dynamic performances and robustness.

Design and Simulation of the New Three-Phase Voltage Source PWM Rectifier

2013 ◽  
Vol 273 ◽  
pp. 343-349
Author(s):  
Yi Ming Zhang ◽  
Zhi Hui Zeng ◽  
Fei Yu ◽  
Jin Lan Feng
Keyword(s):  
Coordinate System ◽  
Control Strategy ◽  
System Stability ◽  
Voltage Source ◽  
Current Loop ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Two Phase ◽  
Loop Control ◽  
Three Phase

Based on the principle of the three phase voltage source PWM rectifier, firstly, describes the topology of the three-phase VSR, and establishes the three-phase VSR’s mathematical model based on the three-phase stationary symmetric coordinate system (a,b,c) and two-phase synchronous rotating coordinate system (d,q); then analysis the three-phase VSR’s control strategy, and discusses the feedforward decoupling control strategy of the inner current loop, the outter voltage loop control strategy and the Space Vector PWM (SVPWM) control strategy. Secondly, builds a simulation model, simulates it in Matlab\Simulink environment.The simulation results show that the system has good current waveform of AC side current, high system stability, fast dynamic response speed, and can realize two-way flow of energy, energy feedback, and unit power factor control.

The Simulation Study of Direct-Current Control Technology for Three-Phase Voltage Type Rectifier

2014 ◽  
Vol 556-562 ◽  
pp. 2105-2109
Author(s):  
Rong Jun
Keyword(s):  
Coordinate System ◽  
Reactive Power ◽  
Control Method ◽  
Current Control ◽  
Topological Classification ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Two Phase ◽  
Three Phase

The diode uncontrolled rectifier or the phase controlled rectifier is widely used in conventional rectifier link, thus the conventional rectifier link on the grid inject a large number of harmonics and reactive power, and they cause a severe grid “pollution”. This paper starts from the basic principles of the PWM rectifier, then the paper discusses the topological classification of three-phase PWM rectifier in detail. Based on topological structure, the paper builds the mathematical model of three-phase stationary coordinate system and two-phase rotating coordinate system. Based on space voltage vector, the paper studies PWM control method in-depth and simulates in Matlab/Simulink. The correctness of the theoretical study of three-phase voltage source PWM rectifier system is verified by the simulation results.

scholarly journals Research on Three-phase Voltage Source PWM Rectifier Based on Direct Current Control

2019 ◽  
Vol 9 (1) ◽  
pp. 6864-6867
Keyword(s):  
Direct Current ◽  
Control Method ◽  
Current Control ◽  
Voltage Source ◽  
Pwm Rectifier ◽  
Phase Voltage ◽  
Unity Power Factor ◽  
Feed Forward Control ◽  
Three Phase ◽  
Direct Current Control

This paper is focused on the development of the rectifier for three phase voltage source to achieve unity power factor at input supply mains. The mathematical model is developed for PWM using direct current control and to apply 3- phase voltage source rectifier decoupled with feed-forward control. This method regulates the output voltage with reduced harmonics. Different PWM techniques such as Hysteresis band and Carrier based sinusoidal is applied and their performance is analysed. This work is implemented in MATLAB/SIMULINK environment. The results confirm the validity of the model and its control method.

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