基于ISSA-H_(∞)的水电机组鲁棒控制

Robust Control for Hydropower Units Based on ISSA-H_(∞)

随着风电、光伏等随机能源大量接入,电网结构变得复杂。在此背景下,水电机组将根据需要经常处于变工况运行,运行环境日趋恶劣,其传统的PID控制策略显然难以实现各种复杂工况下的最优控制。为此,将H_(∞)理论应用于水电机组,并基于改进樽海鞘算法(ISSA)和综合ITAE指标对其参数进行优化,实现了基于ISSA-H_(∞)的水电机组自适应鲁棒控制。仿真结果表明,相比传统的PID控制器,设计的基于ISSA-H_(∞)的自适应鲁棒控制器在不同工况下均有优异的调节性能,实现了水电机组多工况下最优控制。

With the large-scale integration of wind power,photovoltaic,and other random energy sources,the power grid structure has be⁃come complex.In this context,hydropower units will often operate under variable operating conditions as needed,and the operating environ⁃ment is becoming increasingly harsh.It is obviously difficult for the traditional PID control strategy to achieve optimal control under various complex operating conditions.Therefore,the H∞theory is applied to the hydropower unit,and its parameters are optimized based on the im⁃proved salp swarm algorithm(ISSA)and the comprehensive ITAE indicator,and the adaptive robust control of the hydropower unit based on ISSA-H∞is realized.The simulation results show that,compared with the traditional PID controller,the adaptive robust controller designed based on ISSA-H∞has excellent regulation performance under different conditions,and realizes the optimal control of hydropower units un⁃der multiple conditions.