Firstly, this paper analyzed in theory two kinds of frequency regulation controlstrategies, swing equation control strategy and additional frequency regulation characteristics control strategy, which were adopted by ...
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ISBN:
(纸本)9781538667750
Firstly, this paper analyzed in theory two kinds of frequency regulation controlstrategies, swing equation control strategy and additional frequency regulation characteristics control strategy, which were adopted by the demonstration project. The differences between two strategies in frequency modulation start-up time, oscillation risk, mode of supporting power, inertia response dead zone and so on were compared and studied. Then, relying on the recorded field data, paper showed the actual frequency modulation effect and characteristics of differences between the two strategies. Lastly, we optimized the VSG controlstrategies and proposed two new ones to make full ues of the available power of PV-VSG and coordination of photovoltaic and energy storage effectively to stable the grid frequency. The effectiveness of new controlstrategies was verified on a RT-LAB semi-physical simulation platform. This work is supported by science and technology project of the headquarter of State Grid Corporation of China.
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