Research on the Comparative of the Characteristic of the Driving Load of Voltage Source Rectifier and Current Source Rectifier for Direct Power Control

doi:10.11985/2016.12.002

Abstract

Abstract:

In the paper, the current inner loops are used with proportional resonant(PR) control with voltage source rectifier(VSR) and current source rectifier(CSR) as the research object in this paper. Basis on outer loop control with dc voltage square of VSR, the improvement with dc current square of CSR is deduced. Two systems of the closed loop transfer function and mathematical forms are analyzed in the paper. Functional relationship and change trend are studied in the optimal damping coefficient with nature surge frequency and load as well as regulator parameters of PI. Two systems are adaptive on the load with the optimal goal of steady and dynamic. The selection basis on topology and methods are given in the design of system. This theory simplifies design flow, and shortens adjustment period. On the basis of mathematics derived, the practical system parameters is used to put up into the simulation model and verification. That conclusion is correctness.

Key words: Voltage source PWM rectifier, current source PWM rectifier, direct power control, load resistance

CLC Number:

TM464

Dong Yan,Guo Xianchao,Jing Kai. Research on the Comparative of the Characteristic of the Driving Load of Voltage Source Rectifier and Current Source Rectifier for Direct Power Control[J]. Journal of Electrical Engineering, 2016, 11(12): 8-15.

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参数	取值
网侧三相电压有效值/V	220
开关频率f /kHz	10
直流侧电容C/μF	3 000
交流侧电感L/mH	1.5
直流侧负载电阻R/Ω	1,1.5,2,2.5

参数	取值
网侧三相电压有效值/V	220
开关频率f /kHz	5
直流侧电感L/mH	3
交流侧电感L/mH	0.8
交流侧滤波电容C/μF	50
直流侧负载电阻R/Ω	0.1,0.5,0.7,1

阻值/Ω	ε的取值
2.5	0.600
2	0.707
1.5	0.883
1	1.236

阻值/Ω	ε的取值
0.1	0.283
0.5	0.707
0.7	0.918
1	1.224