UHVDC故障下紧急直流功率支援方案研究  

Study on Emergency DC Power Support for UHVDC Fault

作　　者：陈文滨 张尧[2] 谢惠藩[3] 

机构地区：[1]漳州电业局,漳州363000 [2]华南理工大学电力学院,广州510640 [3]中国南方电网超高压输电公司广州局,广州510623

出　　处：《电力系统及其自动化学报》2010年第6期113-118,共6页Proceedings of the CSU-EPSA

摘　　要：采用EEAC法分析了特高压直流输电系统在大扰动下进行紧急直流功率支援的机理,紧急直流功率支援可以有效改善系统的暂态稳定性。借助PSD-BPA详细直流模型,针对云广特高压直流输电工程大扰动情况下进行仿真,得到合适的功率支援开始时刻,适当提升速率、适当支援量,同时能够掌握回降的时间及速率,将极大提高直流功率支援的效果。The mechanism of emergency DC power support（EDCPS） to enhance transient stability of UHVDC power system under large disturbance is analyzed based on EEAC method.The simulations are implemented for Yun-Guang UHVDC transmission project under large disturbance using the detailed DC model of PSD-BPA to obtain the proper starting-time,the proper ascent rate and the proper amount of DC power support.Simulation results show that UHVDC power system has the better transient stability with the proper dropping-time and dropping-rate of DC power support.

关 键 词：扩展等面积法 特高压直流 紧急直流功率支援 电压稳定 功角稳定 

分 类 号：TM721[电气工程—电力系统及自动化]