Dynamic Voltage Restorer Based on Feedforward Active Disturbance Rejection Control

doi:10.16628/j.cnki.2095-8188.2024.03.009

Abstract

Abstract:

A feedforward compensation based active disturbance rejection control (FC-ADRC) strategy is proposed to address the contradiction between compensating speed and compensating overshoot in the traditional proportional integral (PI) control for dynamic voltage restorer (DVR).By improving the compensation overshoot problem of traditional PI control through ADRC strategy,and introducing the voltage and current of LC filter as feedforward to compensate the DVR controller,the fast voltage compensation is achieved for user side voltage sag to ensure the safety and stability of user side voltage.The simulation experiment results show that the proposed strategy maintains the high dynamic responsiveness of the DVR device while ensuring its adaptability to uncertain disturbances.

Key words: dynamic voltage restorer (DVR), voltage sag, feed forward compensation, active disturbance rejection controller

CLC Number:

TM761

SHAO Shuai, HUANG Zai, YANG Shouping, LU Min. Dynamic Voltage Restorer Based on Feedforward Active Disturbance Rejection Control[J]. LOW VOLTAGE APPARATUS, 2024, 0(3): 53-59.

Figures/Tables 12

References 27

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