摘要
根据特高压电网规划,为充分发挥特高压直流系统的输电能力,在±800kV特高压直流电压等级不变的情况下,将直流输电功率提升至3个不同水平(7000MW、7200MW和7600MW),详细研究了特高压直流增容条件下系统的适应性,分析了直流增容对规划网架及系统稳定性的影响。针对电网存在的问题,提出了网架调整方案及稳定控制措施。研究结果为特高压电网规划及特高压直流系统输电容量选择提供了技术支撑。
According to the programming of ultra high voltage power grid, three different transmission capacity schemes （7 000 MW, 7 200 MW and 7 600 MW ） of ±800 kV ultra HVDC system with the same DC voltage were proposed to exert the transmission.capability. The adaptability of power grid was studied in detail, and power grid structure and stability of power system influenced by DC capacity increment was analyzed. In the view of problems existing in power system, power grid adjustment and control strategy were presented. The study results provide the support for power grid design and ultra HVDC capacity selection in the future.
出处
《中国电力》
CSCD
北大核心
2009年第12期33-37,共5页
Electric Power
基金
国家电网公司科技资助项目(SGKJ[[2007]175)
关键词
特高压直流
直流增容
安全稳定
UHVDC
DC capacity increment
security and stability
