联网对海南电网内部故障稳定性的影响与措施研究  

Study on Influence of Interconnection on Stability of Hainan Power Grid under Inner Faults and Corresponding Control Measures

作　　者：赵勇[1] 俞悦[2] 周剑[3] 周保荣[1] 柳勇军[1] 胡剑琛[2] 

机构地区：[1]中国南方电网技术研究中心,广州510623 [2]海南电网公司,海口570203 [3]中国南方电网电力调度通信中心,广州510623

出　　处：《南方电网技术》2009年第5期41-45,共5页Southern Power System Technology

摘　　要：对联网前后海南电网线路、机组等元件"N-1"、"N-2"和多重严重故障下系统的响应分别进行了比较分析,得出了联网后海南电网频率稳定性显著提高,电压稳定性略有提高,功角稳定性有所下降,总体稳定水平得到提高的结论。对功角稳定水平降低的机理进行了分析。为确保电网的安全稳定,对继电保护和开关的维护等提出了要求,提出了失步解列快速隔离故障的若干措施。The system responses of Hainan Power Grid （HPG） to the ＂N-I＂, ＂N-2＂, and other severe faults of lines and generators under the islanding and interconnection conditions are compared respectively, and it is concluded that after interconnection, HPG＇s overall stability is enhanced as its frequency stability enhanced remarkably, voltage stability improved slightly, though angle stability depressed a little. The depression of angle stability is reasoned. For security and stability of HPG, certain requirements for relay protection and breaker maintenance are proposed, and some out-of-step tripping measures are put forward to quickly isolate the faults.

关 键 词：海南电网 南方电网 联网 稳定性 控制措施 

分 类 号：TM712[电气工程—电力系统及自动化]