Research and Optimization Design of Voltage Control Strategies in Photovoltaic Grid Connected Systems
Photovoltaic power generation is the main form of new energy power generation,which has the characteristics of energy saving,environmental protection and flexible application.With the green development and the proposal of double carbon target,China's photovoltaic industry has also ushered in unprecedented opportunities.The process of photovoltaic power generation is the process of converting light energy into electric energy,which is characterized by fluctuation and randomness.With the photovoltaic grid connection,the active power transmission between lines will be reduced,which will lead to the shift of node voltage,and the closer to the end of the line,the more obvious the voltage fluctuation.In order to effectively solve this problem,this paper discusses the access mode of photovoltaic grid-connected from the mechanism of photovoltaic grid-connected voltage.According to the characteristics of photovoltaic grid-connected,it puts forward optimization from the aspects of strengthening the planning and control of distribution network,strengthening the voltage management of photovoltaic grid-connected points,strengthening the technical level of photovoltaic grid-connected and strengthening the operation management of photovoltaic grid-connected,hoping to improve the power quality while reducing the impact of photovoltaic grid-connected voltage,and further give play to its advantages of green energy saving.
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