逆奈奎斯特阵列法在水电机组控制中的应用

The application of an inverse Nyquist array method in hydropower units Control

针对水轮发电机组控制系统中多变量控制对象的特点,采用现代频域法中逆奈奎斯特阵列法对水轮发电机组中的励磁与调速耦合控制回路进行解耦,以减弱回路之间的相互关联,然后对每一控制回路按照单变量控制系统进行设计。仿真结果表明,用该方法能够降低两者之间的影响并且实现良好的控制效果。

For the characteristics of the multivariable object control of a hydroelectric generating set ,the use of modern methods in the frequency domain inverse Nyquist array method of excitation and governor coupled hy-droelectric decoupling control loop to weaken interconnected between loops ,and then for each control loop was design in accordance with the single-variable control system.The simulation results show that this method can reduce the impact between the two and to achieve good control effect.