Hybrid Secondary Voltage Control combined with Large-Scale Wind Farms and Synchronous Generators

作者：Kim Jihun; Lee Hwanik; Lee Byongjun^*; Kang Yong Cheol

来源：Journal of Electrical Engineering and Technology, 2014, 9(2): 399-405.

DOI：10.5370/JEET.2014.9.2.399

• Grid code
• Large scale wind farms
• Voltage/reactive power control
• Secondary voltage control

For stable integration of large-scale wind farms, integration standards (Grid codes) have been proposed by the system operator. In particular, voltage control of large-scale wind farms is gradually becoming important because of the increasing size of individual wind farms. Among the various voltage control methods, Secondary Voltage Control (SVC) is a method that can control the reactive power reserve of a control area uniformly. This paper proposes hybrid SVC when a large-scale wind farm is integrated into the power grid. Using SVC, the burden of a wind turbine converter for generating reactive power can be reduced. To prove the effectiveness of the proposed strategy, a simulation study is carried out for the Jeju system. The proposed strategy can improve the voltage conditions and reactive power reserve with this hybrid SVC.

• 出版日期2014-3