区域电网互联对广东电网暂态稳定性的影响分析  

Impact Analysis of Regional Grid Interconnection on Transient Stability of Guangdong Power Grid

作　　者：徐蔚[1] 林勇[1] 周煜智[2] 徐政[2] 

机构地区：[1]广东电网公司电网规划研究中心,广东省广州市510080 [2]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《电力系统自动化》2013年第21期34-38,共5页Automation of Electric Power Systems

摘　　要：广东电网是南方五省区电网中最大的受端电网,通过交直流混合联网接受区外电力,但交流系统故障和直流系统故障严重威胁其安全稳定运行。电网交流互联对原电网的暂态稳定特性有很大影响,文中以南方电网中长期规划提出的电力流方案和主网架方案为基础,通过仿真研究了3种区域电网互联方案对广东电网暂态稳定性的影响。结果表明受端电网交流互联,而送受端电网异步运行的两广同步网方案能最大限度地提高广东电网的暂态稳定性。Guangdong power grid, the largest received power grid of the five provincial grids in Southern power grid, receives power from other regions through AC/DC hybrid networks, thus its security and stability is seriously threatened by faults in both AC and DC power systems. Regional grid interconnection has significant impacts on the transient stability of the original grid. Based on the power flow scheme and main power system network proposed by the mid- and long-term plan of Southern power grid, the paper presents a simulation study on influences of three regional grid interconnection schemes on transient stability of Guangdong power grid. The results show that Guangdong-Guangxi synchronization power grid, in which the receiving grid is interconnected by AC networks and operates asynchronously with the sending grid, can mostly enhance the transient stability of Guangdong power grid.

关 键 词：电网互联 区域电网 暂态稳定 交直流电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]