Control Strategy Study of Mobile Energy Storage in Multi-converter Systems Based on Simulation

Abstract

Mobile energy storage (MES) devices have excellent characteristics such as strong flexibility and wide application scenarios, and can play a role in shaving peaks and filling valleys in microgrids with high new energy penetration rates and improving power quality. Considering the plug-and-play application scenarios of MES devices in microgrid, this paper uses simulation to study the transient response of plug-and-play MES devices in the multi-inverter parallel connection system under the control of different control strategies, and the working situation after entering steady state. This paper analyzes and compares the situation of voltage source converter droop control, voltage source and current source hybrid droop control and plug-and-play under master-slave control, and gives an analysis of the advantages and disadvantages of various strategies and suggestions for whether they are suitable for mobile energy storage plug-and-play applications.