电力系统保护与控制2024，Vol.52Issue(14)：111-120,10.DOI:10.19783/j.cnki.pspc.231249
孤网模式下水电机组智能鲁棒控制
Intelligent robust control of hydropower units in islanding mode
摘要
Abstract
There is poor robustness of the PID control strategy for hydropower units in islanding mode.Thus an intelligent robust controller(IRC)based on state dynamic measurement,feedback linearization,and improved slime mold algorithm(ISMA)is designed for a nonlinear hydraulic turbine regulating system(HTRS)to achieve real-time optimal control of all operating conditions of hydropower stations.First,a nonlinear and complex HTRS numerical simulation model is constructed,one that fully considers the nonlinearity of the hydraulic turbine,the speed limiting link of the servo system,and the characteristics of a high-order generator.Integration of the system tracking deviation is introduced,and a high-order state space equation model of the HTRS considering the system tracking deviation in islanding mode is derived.Then,HTRS robust control is achieved by combining high-order state space equations and H∞control.Intelligent optimization of H∞controller parameters is performed based on ISMA.Finally,a nonlinear and complex HTRS simulation platform is constructed based on real data from a hydropower station.This is to verify the sensitivity of the proposed control strategy to system parameters and operating conditions,as well as its strong robustness to frequency disturbance.关键词
水电机组/孤网模式/H∞控制/改进黏菌算法/智能鲁棒控制Key words
hydropower unit/islanding mode/H∞ control/improved slime mold algorithm/intelligent robust control引用本文复制引用
陈金保,张智,郑阳,王俊青,肖志怀,李广..孤网模式下水电机组智能鲁棒控制[J].电力系统保护与控制,2024,52(14):111-120,10.基金项目
This work is supported by the National Natural Science Foundation of China(No.51979204). 国家自然科学基金项目资助(51979204) （No.51979204）
湖北省智慧水电技术创新中心开放研究基金项目资助(1523020038) （1523020038）
