广东电力2017，Vol.30Issue(2)：22-28,7.DOI:10.3969/j.issn.1007-290X.2017.02.004
基于自抗扰控制技术的电压源变流器电流解耦控制方法
Control Method for Current Decoupling of Voltage Source Converter Based on Active-disturbance-rejection Control Technology
摘要
Abstract
In allusion to the problem of coupling in dq axial current components of grid-connected inverter of the virtual synchronous generator under the synchronous rotating coordinate system,this paper presents a kind of control strategy for current decoupling based on active-disturbance-rejection control (ADRC) technology.This method considers errors caused by current coupling and changes of inductance parameters as disturbance of the system and figure out this disturbance by using extended state observer.By means of feed forward compensation of the active-disturbance-rejection controller,it is able to eliminate errors,realize decoupling control for dq axial current and better grid-connection of renewable energy sources into power grids.Comparative analysis on traditional feed forward decoupling method for PI adjuster and the proposed method was conducted based on EMTDC/PSCAD simulating modeling which proved feasibility and validity of this method.关键词
虚拟同步发电机/并网逆变器/PI调节器/自抗扰控制技术/电流解耦控制Key words
virtual synchronous generator/grid-connected inverter/PI adjuster/active-disturbance-rejection control technology/current decoupling control分类
信息技术与安全科学引用本文复制引用
盛超,唐酿,朱以顺,丁业豪,王传旭..基于自抗扰控制技术的电压源变流器电流解耦控制方法[J].广东电力,2017,30(2):22-28,7.基金项目
广东电网有限责任公司科技支撑计划项目(GDKJ00000045) （GDKJ00000045）
