Design and Simulation of Phase-Shifted Full-Bridge Converter Based on TSK Fuzzy Adaptive PI Control

doi:10.16628/j.cnki.2095-8188.2021.04.013

Abstract

Abstract:

Phase shifted full bridge DC-DC converters are the core device of DC charging system.Aiming at the problems of long dynamic response time and large output ripple in the traditional proportional-integral (PI) control scheme,a control scheme combining a PI control with a Takagi-Sugeno-Kang(TSK)fuzzy control is proposed.Based on the PI control of the error signal,a compound control strategy with TSK fuzzy control as the core is constructed to speed up the dynamic response of the system on the basis of improving the performances of the steady-state error and the accuracy.The simulation model along with the prototype of the converter is built to verify the effectiveness of the proposed algorithm.The experimental results show that compared with the traditional control scheme,the performances of the dynamic response and the ripple coefficient can be improved by up to 66% and less than 40%,respectively.

Key words: phase-shifted full-bridge, fuzzy control, PI control, DC-DC converter

CLC Number:

TM46

HONG Bangguang, CHEN Wei, ZHANG Haigen. Design and Simulation of Phase-Shifted Full-Bridge Converter Based on TSK Fuzzy Adaptive PI Control[J]. LOW VOLTAGE APPARATUS, 2021, 0(4): 70-76.

Figures/Tables 19

References 19

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各模糊维数值	模糊化值	各模糊维数值	模糊化值
A₁/B₁	-1	A₆/B₆	0.016
A₂/B₂	-0.3	A₇/B₇	0.05
A₃/B₃	-0.05	A₈/B₈	0.3
A₄/B₄	-0.016	A₉/B₉	1
A₅/B₅	0

e	e_c
e	B₁	B₂	B₃	B₄	B₅	B₆	B₇	B₈	B₉
A₁	-1.280	-1.784	-1.964	-1.988	-2.000	-2.011	-2.036	-2.216	-2.720
A₂	0.120	-0.384	-0.564	-0.588	-0.600	-0.611	-0.636	-0.816	-1.320
A₃	0.620	0.116	-0.064	-0.088	-0.100	-0.111	-0.136	-0.316	-0.820
A₄	0.688	0.184	0.004	-0.020	-0.032	-0.043	-0.068	-0.248	-0.752
A₅	0.720	0.216	0.036	0.012	0	-0.011	-0.036	-0.216	-0.720
A₆	0.752	0.248	0.068	0.043	0.032	0.020	-0.004	-0.184	-0.688
A₇	0.820	0.316	0.136	0.111	0.100	0.088	0.064	-0.116	-0.620
A₈	1.320	0.816	0.636	0.651	0.600	0.588	0.564	0.384	-0.120
A₉	2.720	2.216	2.036	2.011	2.000	1.988	1.964	1.784	1.280