Layered energy balance control method for renewable energy grid based on island mode

Yao Li, Hui Liu, Wei Xia, Yanwu Ruan and Xiaochuan Guo

International Journal of Global Energy Issues, 2023, vol. 45, issue 4/5, 461-473

Abstract: In order to improve load balance and energy efficiency of renewable energy grid, this study designed a layered energy balance control method based on island mode. Firstly, the operation characteristics of renewable energy grid in island mode are analysed, and then the energy balance control of renewable energy grid is divided into three layers, namely, renewable energy output control, grid reactive power control and grid voltage control. The experimental results show that the load waveform of bus voltage tends to be stable after a short abnormal change in the early stage, and the voltage stabilises around 220 kV after 6 s. The maximum renewable energy utilisation rate can reach 95%, indicating that the proposed method achieves the design expectation.

Keywords: island mode; renewable energy grid; energy control; layered control; voltage load; energy efficiency. (search for similar items in EconPapers)
Date: 2023
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