摘要
天生桥至广州±500 kV直流输电工程是南方电网第一个超高压直流输电工程,是我国第二条远距离、大功率、超高压直流输电工程。随着运行时间的增长,天广直流工程控制保护系统软、硬件故障逐渐暴露出来,多次造成单极强迫停运,甚至双极强迫停运,因此需要对天广直流控制保护系统进行整体改造。文中介绍了PCS-9550直流控制保护系统的结构、特点及在天广直流改造工程中的应用其改进之处。
Tianguang±500 kV HVDC power transmission system is the first HVDC project in the CSG,and the second buck power HVDC transmission project in the China,which made great contributions in the power transmission from west to east and the economics development of the Guangdong province.With the growth of operation time,the trouble in the HVDC control and protection system becomes more and more serious,and has caused Tianguang HVDC transmission system single pole even bipolar pole to block for several times.It is necessary to update the control and protection system of Tianguang HVDC transmission system.The characteristics of PCS-9550 as well as its application in Tianguang HVDC transmission system are introduced in the paper.
出处
《江苏电机工程》
2010年第3期28-31,共4页
Jiangsu Electrical Engineering
