PLC闭环PID控制在SVC电压调节中的应用研究

Study on PLC Closed Loop PID Controller Applied to SVC Voltage Regulator

本文简要分析了静止无功补偿器(Static Var Compensator,SVC)控制系统的组成和补偿原理。针对SVC电压调节单元,介绍了基于西门子S7-200PLC闭环控制系统中PID数字控制器的原理及PID电压调节控制的实现。实验结果表明S7-200PLC闭环PID控制在SVC应用中可行,对PID工业控制很有参考价值。

The composing of the Static Var Compensator (SVC) control system and the compensate principle are briefly analyzed in this paper. To the SVC voltage regulator,this paper has illuminated the principle of the S7 200 PLC’s closed loop PID digital con- troller, and how to realize the PID digital control. The experiment results show that this procedure is feasible and is a good refer-ence for the use of the PID in the industrial control system.