Research on sub/super-synchronous oscillation detecting, alarming and control technology used in the new energy pooling area
Chen Jun1, Wang Chen2, Nan Dongliang2, Feng Xiaoping3, Zhang Lu2
1. State Grid Tulufan Electric Power Supply Company, Urumqi 830011; 2. Xinjiang Electric Power Dispatching and Communication Center, Urumqi 830011; 3. State Grid Electric Power Research Institute of Xinjiang Electric Power Company, Urumqi 830011
Abstract：Hami Area of Xinjiang is the sending terminal of ±800kV UHVDC transmission system from the Tianshan Station to the Zhongzhou Station. The local grid system is a complex one and facing relatively higher risk of sub/super synchronous oscillation than elsewhere as wind power and photovoltaic power in combination with thermal power are bundled and transmitted from here. In view of the shortcomings of the existing sub/super synchronous oscillation detecting and alarming system in the new energy pooling area of Xinjiang power grid, the improved method and optimized scheme are proposed. Three safeguards and two platforms have been deployed aim to detect and alarm respectively. Aiming at the shortcomings of the existing stability control system, an oscillation positioning method and an improved cutting scheme are proposed, and three lines of defense for the stability control system are established. The improved detecting, alarming and control system can monitor oscillations in real time, alarm in time and suppress as quick as possible, ensuring stable operation of the power grid.
陈军, 王琛, 南东亮, 冯小萍, 张路. 新能源汇集地区次/超同步振荡监测告警及控制系统研究[J]. 电气技术, 2018, 19(8): 72-76.
Chen Jun, Wang Chen, Nan Dongliang, Feng Xiaoping, Zhang Lu. Research on sub/super-synchronous oscillation detecting, alarming and control technology used in the new energy pooling area. Electrical Engineering, 2018, 19(8): 72-76.
2018, Vol. 19 
