电力系统暂态稳定性闭环控制(七)——实现方案与控制效果  

Closed-loop control of power system transient stability(7):implementation scheme and control effect

作　　者：张保会[1] 王怀远[1] 杨松浩 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《电力自动化设备》2015年第2期1-7,共7页Electric Power Automation Equipment

摘　　要：给出基于广域测量系统的暂态稳定性闭环控制系统实现方案,该闭环控制系统应用实时测量信息,依据系统相轨迹几何特征,实测、预测暂态不稳定并实时计算、分配切除超前机组,实现电力系统暂态稳定性的闭环控制。讨论了闭环控制系统的系统结构框架和物理实施条件,包括系统控制主站、发电厂子站的功能和软件流程图,以及子站与主站间的配合。IEEE 39节点系统和三华电网系统仿真表明,在单一重大扰动、连续重大扰动及前期控制作用下,所提方案都能对暂态稳定性作出准确预测,并对将要失稳的系统施加有效、经济的切机控制。An implementation scheme of transient stability closed-loop control system based on wide area measurement system is given,which detects and predicts the transient instability based on the information of real-time measurements and the geometric features of system phase trajectory,as well as calculates and assigns the leading generators for shedding,to realize the transient stability closed-loop control of power system. Its structural frame and physical implementation conditions are discussed,including the function and software flowchart of its master station and slave station and the cooperation between them. The simulations for IEEE 39-bus system and Sanhua Power Grid show that,the implemented system predicts the transient instability accurately in the conditions of single serious disturbance,successive serious disturbances and earlier controls,and issues the effective and economic control of generator shedding for the possible instable system.

关 键 词：电力系统 广域测量系统 暂态 稳定性 闭环控制 相轨迹 

分 类 号：TM712[电气工程—电力系统及自动化]