电力系统自动化2019，Vol.43Issue(5)：136-142,166,8.DOI:10.7500/AEPS20180615014
基于微分前馈自抗扰的逆变器控制策略
Active Disturbance Rejection Control Strategy with Differential Feedforward for Inverters
摘要
Abstract
The conventional active disturbance rejection control (ADRC) is mainly adopted to track the step signal to realize fast response and zero steady-state error. But the output of the inverter is a periodic signal, which leads to a large tracking error and makes the application of ADRC restricted. The known model of the inverter is added into the controller, and the ADRC scheme is adopted to suppress the lumped disturbance, including the unmodeled dynamics and external disturbances. The conventional model compensation based ADRC can achieve better waveform quality, but the steady-state error rate is high. Theoretical analysis of the reasons for the existence of steady-state error is performed and the ADRC with differential feedforward (DF) is proposed to reduce the steady-state error of the inverter. By establishing the equivalent of internal model control structure, the stablilty of inverter based on ADRC with DF. The effectiveness of the proposed scheme is verified by the simulations and experiments.关键词
逆变器系统/自抗扰控制/微分前馈/模型补偿Key words
inverter system/active disturbance rejection control (ADRC)/differential feedforward (DF)/model compensation引用本文复制引用
曹永锋,武玉衡,叶永强,熊永康,赵强松..基于微分前馈自抗扰的逆变器控制策略[J].电力系统自动化,2019,43(5):136-142,166,8.基金项目
国家自然科学基金资助项目(61473145) （61473145）
中国博士后科学基金资助项目(2017M611804) （2017M611804）
This work is supported by National Natural Science Foundation of China (No. 61473145) and Post-doctoral Science Foundation of China (No. 2017M611804). （No. 61473145）
