作　　者： ; ; ;

机构地区： 广西大学电气工程学院

出　　处： 《电网技术》 2012年第8期152-156,共5页

摘　　要： 根据闭环系统谐振峰值Mr与系统响应最大峰值Mp之间的关系,构建一个与系统参数及控制器参数都相关的优化问题,通过该问题的求解获得控制器参数与系统参数之间的数学关系。针对线性水轮机模型,设计了基于尼科尔斯曲线的PID控制器。系统负荷干扰及参数摄动的仿真结果表明:所设计的PID控制器对系统参数摄动及外部有界干扰信号具有很好的鲁棒性能,系统过渡过程性能明显优于传统PID调节器结果。 According to the relation between the maximum peak resonance of closed-loop system and its maximum peak overshoot, an optimization problem related to both system parameters and governor parameters is proposed and the mathematical expression of the relation between system parameters and governor parameters is achieved by solving the proposed problem, and a Nichols proportional-integral- derivative （PID） governor is designed for linear hydro turbine model. Simulation results of disturbances due to power system load variation and parameter perturbation of the proposed governor show that the designed PID governor possesses good robustness for system parameter perturbation and external bounded disturbance signals, and the performance of its performance indices of transient process are evidently better than those of traditional PID governors.

关 键 词： 水轮机调速系统 尼科尔斯曲线 比例 积分 微分

领　　域： [电气工程]