Abstract
Reactive power optimization control is an important part of power grid connection. With the construction of New Power System, a large number of distributed new energy will be built and connected to the Grid. In order to deal with the randomness and volatility of new energy and hidden dangers of high proportion of new energy in Grid, reactive power optimization control of grid connected power supply is an important measure to stabilize the power system. Photovoltaic(PV) inverters have independent reactive power control and output capabilities through decoupling. Based on this, this paper proposes a reactive power and voltage equalization(RVE) control algorithm for inverter groups. Aiming at the phenomenon of poor power quality at the source-load point of common coupling(SLPCC) and large voltage drop difference in PV station, a RVE algorithm based on reactive power and voltage vector relationship of inverter generation nodes and array iteration is proposed, and the operation simulation is performed. The results show that the control strategy can carry out effective reactive power control and voltage equalization to inverter groups.
Published Version
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