Research and Engineering Field-test of a Renewable Energy Stations Rapid Power Control Technology for Improving Power Grid Stability

Abstract

With the rapid development of renewable energy, a high proportion of wind power system in the "Three North" region has basically taken shape, the power electronization in the power grid is serious, the operation of the power grid encounters a series of difficulties and challenges, the level of system security and stability continues to decline, the capacity of traditional control and conventional resources is limited, and renewable energy is urgently needed to participate in power regulation and improve the ability to participate in power emergency control and improve the stability of power grid. In this paper, a system scheme based on rapid power control of renewable energy station is proposed. By transforming the existing power generation equipment, adjusting and upgrading the corresponding communication mode, acquisition process and control algorithm, a rapid power control device for renewable energy station is developed, which realizes flexible control to replace rigid control and rapid power adjustment continuously, The scheme has been applied in the DC field-test system platform of Zhangbei Test Base, State Key Laboratory of Renewable Energy and Energy Storage. The field test shows that the whole scheme meets the design requirements, and the test results achieve the expected purpose, which verifies the effectiveness and advancement of the technology.