Chunhui Guan, Weijie Li, Xinyue Zhang, Yi Lv, Weiwei Yu
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Stability Analysis of Bidirectional DC-DC Converter for Energy Storage
With the increase in power and energy density of energy storage components, more and more energy storage systems are being used in a variety of applications, and bidirectional DC-DC converter plays an important role in energy buffering and control. In order to study the problem about stability of bidirectional DC-DC circuit in energy storage system, this paper takes the bidirectional DC-DC circuit used for energy storage as the main research object, conducts system modeling, impedance analysis and stability analysis of the converter, and conducts simulation analysis on the stability of the energy storage converter through MATLAB/Simulink simulation model. Based on the bode diagrams and Nyquist diagrams, the stability analysis, of the bidirectional DC-DC converter-inverter cascade system, is accomplished in this paper.
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