Analysis on Transient Characteristics of Inverter-type New Energy Power Failure

In the development process of power systems, there are large differences in the operation mechanism and control method of inverter-type new energy power sources and the grid-connected control structure. When we research it, the in-depth research on the state characteristics of the battery under the fault is insufficient, which will affect the application effect of the inverter-type new energy power supply. Based on the research on DC test and circuit switching control strategies, an electromagnetic state model of inverter power supply with typical grid-connected control and low-voltage ride-through control can be established. In this way, it is possible to comprehensively understand and master the transient characteristics of the power supply during the entire process of fault removal from the aspects of qualitative analysis and quantitative analysis. At the same time, the power input power of the fault location, the number of connected units and the amount of reactive power injection can be thoroughly understood and discussed, and the relevant laws affecting the transient characteristics of the inverter power supply fault can be grasped, which can promote the protection of new energy power sources in the power grid adaptive research and the application of new principles provide a more reliable theoretical basis.