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The transformation towards renewable and sustainable energy, as well as the digitalization of energy, has promoted the development of the power system towards miniaturization, decentralization, and intelligence. As a solution, a battery-directly-connected DC microgrid has been proposed in previous studies for autonomous and decentralized coordination control (ADCC). We constructed a testbed of the battery directly connected DC-microgrid in our university campus which has been operating stably for more than one year. This study experimentally verifies the feasibility of the battery-directly-connected DC microgrid, and the process of autonomous, decentralized, and coordinated energy distribution between the distributed small batteries through power loading experiments. In addition, a simulator for analyzing the behavior of the DC microgrid test platform is built in MATLAB/Simulink, and its accuracy is verified based on an energy flow analysis, revealing its potential for cyber-physical-system (CPS) construction.
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Liu et al. (2023) studied this question.
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