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对发电机端电压偏移量施加积分控制时,考虑到发电机励磁系统、调速系统的控制, 推导出了发电机的积分型线性综合最优控制规律(ILIOC),并与只考虑发电机励磁系统、调速系统控制的发电机线性综合最优控制规(ILIOC)进行了比较。仿真结果表明:在提高系统稳定极限和改善系统动态特性方面,ILIOC与LIOC具有相同能力。同时ILIOC能消除发电机端电压的稳态误差,提高了控制精度,改善了系统运行水平。
Considering generator excitation system and speed control system, integral integral linear optimal control law (ILIOC) of generator is deduced when integral control is applied to generator terminal voltage offset, Excitation system, speed control system generator integrated linear optimal control rules (ILIOC) were compared. The simulation results show that ILIOC and LIOC have the same ability to improve system stability limit and improve system dynamic performance. At the same time ILIOC can eliminate the steady-state error of generator terminal voltage, improve the control accuracy and improve the system operation level.