一种电力系统失步解列面的实时搜索方法  

A Real-time Searching Method for Splitting Surfaces of the Power System

作　　者：汪成根[1] 张保会[1] 郝治国[1] 李鹏[1] 舒进[1] 程临燕[1] 薄志谦[2] 

机构地区：[1]西安交通大学电气工程学院,陕西省西安市710049 [2]阿海珐输配电自动化有限公司

出　　处：《中国电机工程学报》2010年第7期48-55,共8页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973项目)(2009CB219700);国家高技术研究发展计划项目(863计划)(2006AA05Z247);国家自然科学基金项目(50595413)~~

摘　　要：为故障后失去稳定的电力系统确定解列断面以平息系统振荡可以防止系统完全崩溃,如何快速寻找不同失稳模式下的解列面成为解列控制的关键问题之一。提出电力系统失步解列面实时搜索方法,该方法的优化目标为解列后各孤岛内发电机和负荷不平衡尽可能小。方法包含3个阶段:基于潮流追踪的系统分区、基于发电机分群信息的解列面初步确定和基于初步解列断面的解列断面改善。算法具有时间复杂度小、计算速度快的特点。基于C++语言编制实时搜索程序,对IEEE118节点系统进行解列面搜索仿真计算,仿真算例验证了方法的有效性和快速性。It is possible to prevent the total collapse of the unstable post-fault power system, by determining the splitting surfaces to calm down the system oscillation. How to determine the proper splitting surfaces in a short time is a key problem for power system controlled islanding. A novel and fast splitting surtaces searching method was presented. The aim of this method is to make the generation load imbalance in each island as small as possible. The method contains three phases： firstly, domains of each generator are formed according to the power flow tracing algorithm; secondly, initial splitting surfaces are determined based on the generators＇ grouping information; thirdly, the final splitting surfaces are improved based on the initial splitting surfaces. A C＋＋ program was developed based on the method. Simulations on the IEEE 118-bus power system show the proposed method is effective and fast.

关 键 词：潮流追踪 电力系统 解列面 系统解列 

分 类 号：TM71[电气工程—电力系统及自动化]