Design Method of Stability Control System for Photovoltaic Grid-Connected Station and Its Application and Practice in CSG
With the construction of new power systems,the"double-high"characteristics of the power grid have a significant impact on its operation and stability characteristics.A standardized design solution for the stability control system of photovoltaic power sta-tion grid-connected is proposed,including network communication architecture,software and hardware functional configuration,export mode design and coordination methods.The solution addresses the current limitation where the export of photovoltaics stabil-ity control system can only be manually selected between"complete cut-off"or"complete adjustment."The effectiveness of the solu-tion has been demonstrated through its successful implementation in the first hydro-photovoltaic complementary project in China Southern Power Grid.The results of RTDS simulation tests confirm that the designed stability control system enables precise adjust-ment of fast power modulation.It exhibits short communication delays and demonstrates high reliability in communication network-ing.Moreover,the system proves its adaptability to various stability requirements of actual power grids.
photovoltaic grid-connectedstability control systemstandardized designfast power modulationRTDS simulation
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