Finite‐time observer and current sharing control for disturbance compensation of parallel H‐bridge converters-Reference-Cited by-同舟云学术

Finite‐time observer and current sharing control for disturbance compensation of parallel H‐bridge converters

Published:2023-08-22 Issue:16 Volume:17 Page:2227-2239
ISSN:1751-8644
Container-title:IET Control Theory & Applications
language:en
Short-container-title:IET Control Theory & Appl

Author:

Chen Tao¹²,Fang Qiansheng¹,Yang Yalong¹,Wu Zhengtian³,Zhang Xiuqing²,Huang Liansheng²,Chen Xiaojiao²

Affiliation:

1. Anhui Province Key Laboratory of Intelligent Building and Building Energy Saving Anhui Jianzhu University Hefei China

2. Institute of Plasma Physics Chinese Academy of Sciences Hefei China

3. Suzhou University of Science and Technology Suzhou China

Abstract

AbstractBoth electric vehicles and Tokamak power supply use multiple parallel converters to realize high current operation in four quadrants. A finite‐time current sharing control algorithm based on disturbance compensation is proposed to improve the converter system's dynamic and steady‐state performance so that the system can achieve the required load current and branch‐current sharing in a finite time. In the proposed algorithm, this paper adopts a finite‐time observer for unknown disturbances in the converter system and load circuit due to disturbances, such as unknown inductance and resistance in the converter system. The results show that the load current control overshoot is minimal, and the dynamic performance of each branch current is higher than the traditional control algorithm.A finite‐time current sharing control algorithm based on disturbance compensation is proposed so that the converter system can achieve the required load current and branch current sharing in a finite time.

Publisher

Institution of Engineering and Technology (IET)

Subject

Electrical and Electronic Engineering,Control and Optimization,Computer Science Applications,Human-Computer Interaction,Control and Systems Engineering

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