Abstract
Based on the AC/DC flexible interconnected system of distribution network, it is necessary to analyze the impact of AC side on DC side and DC side on AC side, and consider the impact of load fluctuation or photovoltaic access, so as to comprehensively analyze the power flow distribution of AC system and DC system. In this paper, based on the graph database to establish the distribution network diagram power flow calculation related equipment model, using the basic principle of graph parallel processing model, based on Newton Raphson method, the alternating iteration method is used to realize the design of AC and DC diagram power flow calculation algorithm. Based on the distributed graph computing cluster system, the online AC/DC hybrid power flow calculation program is developed, and the online real-time operation of AC/DC hybrid power flow calculation is realized. The function of the software is reliable and simple, which can fully meet the needs of the project, so as to solve the practical problem of power flow analysis and calculation in the actual project..
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