广东电网基于楚穗直流系统故障影响的风险辨识及调度应对措施

在分析广东电网电源特性与现状、网络结构及其潮流分布的基础上,指出广东电网内目前存在机组快速调节能力差,网络结构复杂,东西两翼送入中部通道的潮流、北内外环网的潮流交换降低的问题,当楚穗直流系统发生故障时将严重威胁广东电网的安全稳定运行,给实时调度运行带来很大困难。为此,提出楚穗直流系统分别在孤岛运行方式和联网运行方式下,发生单极和双极闭锁事故时广东电网调度运行策略及事故处理方案;提出楚穗直流系统风险辨识建议,做好楚穗直流系统故障相关事故预案,积极开展楚穗直流系统事故演习,防范事故于未然。

Risk Identification and Grid Dispatching Strategy Based on Chu-Sui UHVDC System Fault in Guangdong Power Grid

Upon analyzing the power supply features and actualities,network structure and load flow distribution of Guangdong power grid,it is indicated that there exist in Guangdong power grid such problems as poor fast-adjustment ability of unit,complicated network structure,reduced exchange of load flow from east and north wings to central channel and that of northern inner and outer rings;the fault of Chu-Sui ultra-high voltage direct current(UHVDC) system will seriously impact the operation reliability of Guangdo...