Wind power integration and operation in an AC/DC hybrid transmission system of Shandong province

Since the crisis of energy and climate intensifies, wind power, one of the most perspective renewable energy, develops rapidly around the worldwide. After the publication and implement of Renewable Energy Law, China wind generation is growing dramatically and Shandong province will be the eighth ten-gigawatt-level wind power base by 2020. In this paper, some characteristics of power grid and wind power development of Shandong province are given, such as features in power grid and power sources, installed capacity of wind power, geographical distribution of wind generation, wind farms and wind turbine generators and off-shore wind power. Next, the problems of wind power operation in this area are proposed in the following aspects: peak regulation and frequency regulation, wind power penetration in regional grid, voltage control in regional network, the stability of power grid and the effect of HVDC system on wind power integration. Then, the reasons for the above problems are analyzed, which can be attributed to several respects: imperfection of technical rules and policies, uncoordinated development with power sources and grid, lack of technical tools for wind power dispatching, poor performance of supervisory control and data acquisition system (SCADA) system in wind farms, poor performance of wind turbine generators. Finally, some suggestions and measures are put forward, which will be a guiding reference for the wind power integrating and operating.