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运用现代控制理论，考虑发电机励磁系统、调速系统控制的同时，对发电机端电压偏移量施加积分控制，推导出了多机系统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、调速系统控制的线性综合最优控制规律（ＬＩＯＣ）进行了比较。仿真结果表明：在提高系统稳定性极限和改善系统动态特性方面，ＩＬＩＯＣ与ＬＩＯＣ具有相同的能力，但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
Using the modern control theory, considering the control of generator excitation system and speed control system, integral control of generator voltage offset is applied, and the integral linear integrated optimal control law (ILIOC) of multi-machine system is deduced. Consider only the linear integrated optimal control law (LIOC) of generator excitation system and speed control system. The simulation results show that ILIOC and LIOC have the same ability to improve the system stability limit and improve the dynamic characteristics of the system. However, ILIOC can eliminate the steady-state error of generator terminal voltage, improve the control accuracy and improve the system operation level