应用最优控制理论,综合考虑频率、功率、水压三项指标,研制一种线性二次型调节器(LQR),使得在满足水压不越限的前提下,将调频、调功一次完成,并能在调节过程中,时时遵循负荷最优分配的原则.既能获得最优的频率动态品质,又使电厂经济效益最大.经过实例仿真,结果是满意的. Applying the optimal control theory, considering the three indexes of frequency, power and water pressure, a linear quadratic regulator (LQR) was developed to make the frequency modulation and power adjustment completed once the water pressure was not limited , And can follow the principle of optimal load distribution from time to time in both regulation process, which not only can obtain the optimal frequency dynamic quality, but also maximize the economic benefits of power plant.After example simulation, the result is satisfactory.