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.

LADRC Control for the Three-Phase Voltage-Type PWM Rectifier

2012 ◽  
Vol 591-593 ◽  
pp. 1531-1534 ◽  
Author(s):  
Jin Fang Zhang ◽  
En Li Yao ◽  
Jin Chao Xing
Keyword(s):  
Control Method ◽  
External Disturbance ◽  
Processing System ◽  
Normal Operation ◽  
Equivalent Resistance ◽  
Phase Voltage ◽  
Pwm Inverter ◽  
Three Phase ◽  
Dc Bus ◽  
Bus Voltage

In the three-phase voltage-type pulse width modulation (PWM) inverter system, the steady DC-bus voltage is significant for normal operation of PWM converter. With traditional control method, DC-bus voltage has poor anti-disturbance performance and large steady-state error generated by parametric uncertainties of inductive resistance and switching devices’ equivalent resistance. To cope with these problems, a linear active disturbance rejection control (LADRC) controller is designed based on the advantages of the LADRC in processing system internal perturbation and external disturbance. The simulation study shows that under the same disturbance the proposed method can realize not only faster dynamic response and better property of anti-disturbance performance, but also unity power factor control. For the uncertainties of AC equivalent resistance and inductance, the method shows strong adaptability and robustness.

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.

scholarly journals A Fast and Robust DC-Bus Voltage Control Method for Single-Phase Voltage-Source DC/AC Converters

2019 ◽  
Vol 34 (9) ◽  
pp. 9202-9212 ◽  
Author(s):  
Seyedfoad Taghizadeh ◽  
Masoud Karimi-Ghartemani ◽  
M. Jahangir Hossain ◽  
Junwei Lu
Keyword(s):  
Single Phase ◽  
Control Method ◽  
Voltage Control ◽  
Voltage Source ◽  
Phase Voltage ◽  
Dc Bus ◽  
Bus Voltage ◽  
Ac Converters

Switched Control of Three-Phase Voltage Source Pulsewidth-Modulated Rectifier Under Dynamic Load: Output Feedback and Robustness

2016 ◽  
Vol 138 (12) ◽  
Author(s):  
Zhaowu Ping ◽  
Hao Tang ◽  
Jun-Guo Lu ◽  
Xueying Gao ◽  
Qi Tan
Keyword(s):  
Feedback Control ◽  
Dynamic Load ◽  
Output Feedback ◽  
Load Resistance ◽  
Voltage Source ◽  
Phase Voltage ◽  
Three Phase ◽  
Switched Control ◽  
Dc Bus ◽  
Bus Voltage

Three-phase voltage source pulsewidth-modulated (PWM) rectifiers (VSRs) have received great attentions in industrial applications. Recently, some attempt has been made to study the flexible direct current (DC)-bus voltage regulation problem under dynamic load of three-phase VSRs by switched control. Several proportional-integral (PI) controllers are designed for different load resistance range while only one PI controller is implemented for a given time instant by regarding the load resistance as the switching law. However, the existing approach is based on state feedback control, which requires the measurement of source current and DC-bus voltage. In this paper, we will adopt an output feedback control scheme, i.e., only DC-bus voltage should be measured. Compared with the existing result, our design requires less information and reduces the cost. Moreover, the robustness analysis of plant parameters is given when all the states are available. Simulation results demonstrate the effectiveness of our design.

scholarly journals DC-bus voltage controllers for a three-phase voltage-source inverter for distributed generation

2009 ◽  
Vol 1 (07) ◽  
pp. 297-302 ◽  
Author(s):  
Bart Meersman ◽  
Bert Renders ◽  
Lieven Degroote ◽  
Tine Vandoorn ◽  
Lieven Vandevelde
Keyword(s):  
Distributed Generation ◽  
Voltage Source ◽  
Phase Voltage ◽  
Voltage Source Inverter ◽  
Three Phase ◽  
Dc Bus ◽  
Bus Voltage
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