基于PID预测函数的励磁控制研究  

Application of PID-type Predict Function of Control Algorithm in the Excitation Control

作　　者：郭伟[1] 吴东[1] 吴青[1] 

机构地区：[1]南京信息工程大学信息与控制学院,江苏南京210044

出　　处：《控制工程》2012年第5期757-760,764,共5页Control Engineering of China

基　　金：南京信息工程大学创新项目(10CX039)

摘　　要：同步发电机励磁控制对提高电力系统稳定性起着重要的作用。当电力系统发生故障或受到扰动时,容易出现长时间的低频率振荡,严重影响系统的稳定运行。为了提高电力系统运行的稳定性,在讨论励磁控制现有控制方式和分析预测函数控制(PFC)算法和PID算法的基础上,将预测函数控制算法的性能指标构造成PID形式,推导出改进的PID型预测函数控制算法(PIDPFC),并应用于同步发电机励磁系统控制。通过仿真研究对比,在时域内分析了PIDPFC控制器的参数选择对系统控制性能的影响,取得了预期的结果,仿真结果表明了PIDPFC算法的优点。The adjustment of the excitation control of synchronization plays an important role in increasing stability of the power system. Low frequency oscillations will stay for a long time when the power system were stall or disturbanced, the running of the system was af- fected seriously. To improve the stability of the power systems running, and based on the discussion of Existing control mode and analy- sis of Predict function of control（FPC） algorithm and PID algorithm, the performance index of predict function of control algorithm was restructured as PID form. The derivation of PID-type predict function of control algorithm（PIDPFC） was given, and applied on the exci- tation control of synchronization system. Through the contrast of simulation, The influence of PIDPFC controller parameter tuning on sys- tem performance was analyzed in time domain with simulations, the PIDPFC algorithm has advantages.

关 键 词：预测函数控制(PFC) PID控制 同步发电机励磁控制 PIDPFC控制器 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]