基于最优变目标控制策略的SSSC与励磁系统协调控制  

Coordination Control of SSSC and Excitation System Based on Optimal Variable Aim Control Strategy

作　　者：孟令剑 边相阳 袁帅 MENG Lingjian;BIAN Xiangyang;YUAN Shuai(Northeast Electric Power University,Jilin 132012, China)

机构地区：[1]东北电力大学,吉林吉林132012

出　　处：《吉林电力》2019年第2期13-16,共4页Jilin Electric Power

摘　　要：针对静止同步串联补偿器(SSSC)对长远距离输电系统的传输能力有很大的影响,励磁系统对发电机端电压有一定的控制也能影响输电线路的传输效率的问题,对单机无穷大系统,采用最优变目标控制策略将SSSC与发电机励磁协调设计,使线路输送能力增强及有效抑制阻尼低频振荡进行了分析。仿真结果表明,通过这种控制方法能更加有效合理地控制SSSC与励磁系统的结合,可提高故障时发电机向输电线路输送无功功率的能力,同时能有效提高系统的功角和电压稳定性。SSSC and generator excitation system have great influence on transient stability of long-distance transmission system.This paper focuses on the single infinite bus system,the optimal variable aim control strategy is adopted to coordinate the SSSC design with generator excitation.It can enhance the transmission capacity and effectively restrain the low frequency oscillation. The simulation results show that the combination of SSSC and excitation system can be controlled more reasonably by this control method, which can improve the capacity of the generator to deliver reactive power to the transmission line in case of fault, and can effectively improve the power angle and voltage stability of the system.

关 键 词：静止同步串联补偿器(SSSC) 励磁系统 最优变目标控制(OVAC) 

分 类 号：TM711[电气工程—电力系统及自动化]