Impact of Frequency Anti-windup Limiter on Synchronization Stability of Grid Feeding Converter  

作　　者：Junru Chen Chenchen Ge Di Qiang Hua Geng Terence O'Donnell Federico Milano 

机构地区：[1]the School of Electrical Engineering,Xinjiang University,Urumqi,China [2]the School of Electrical and Electronics Engineering,University College Dublin,Dublin,Ireland [3]the Department of Automation,Tsinghua University,Beijing,China

出　　处：《CSEE Journal of Power and Energy Systems》2023年第5期1676-1687,共12页中国电机工程学会电力与能源系统学报(英文)

基　　金：supported in part by the National Natural Science Foundation of China(U2166601,U2066602);the Science and Technology Department of Xinjiang under Grant No.2021D01C086;funded by Sustainable Energy Authority of Ireland(SEAI)by under project FRESLIPS,Grant No.RDD/00681.

摘　　要：Loss of synchronization is one of the main issues for a grid-feeding converter in a weak grid after being subjected to a large disturbance.The synchronous transient is highly nonlinear due to phase movement and frequency limiters.However,none of the previous research has considered the anti-windup PI in the phase-locked loop,which is commonly implemented in reality and introduced as an additional nonlinear transient.This work provides a taxonomy to evaluate and compare the effect of different anti-windup PI limiters on synchronization stability,including clamping,back-calculation and combined method.Different anti-windup PI limiters allocate zeros and poles differently and have different impacts on damping and stability enhancement.A case study implemented in Matlab/Simulink serves to compare the trajectory of the converter phase and frequency using different anti-windup PI in the scenario of both with and without equilibrium points during the fault.Simulation results show that anti-windup PI limiters increase damping during the fault and thus improve the synchronization stability margin.

关 键 词：Frequency Limiter(FL) grid-following converter Phase-Locked Loop(PLL) synchronization stability 

分 类 号：TM46[电气工程—电器]