摘要:
溪洛渡右岸电站送电广东±500 kV同塔双回直流输电工程是国内第一条同塔双回直流输电工程，其控制保护除了常规直流工程所具备的全部功能外，增加了双回直流协调控制功能。以溪洛渡送电广东直流输电工程为背景，介绍了其与常规直流工程在控制系统分层结构上的差异，从功率调制、双回功率控制和无功控制三个方面重点分析了双回直流协调控制策略，给出了该控制系统在控制主机异常情况下的控制策略，并和常规直流系统的控制策略进行了对比。 The project of Xiluodu right station-Guangdong ±500 kV double HVDC systems erected on the same tower is the first project that double HVDC systems erected on the same tower at home, its function of control and protection increased the double DC coordination control function in addition to all function of conventional DC project. This paper was written with the background of Xiluodu-Guangdong HVDC project, introduces the differences in control system layered structural between Xiluodu-Guangdong HVDC project and conventional DC engineering, from power modulation, double DC power control and reactive power control three field analyzes the double DC coordinated control strategy, the control strategy in the control host abnormal are given, and compared with the control strategy of conventional DC system.