Multi evaluation method of distribution network with distributed generators

In this paper, the authors propose a multi evaluation method to evaluate the distribution network configuration candidates satisfied with constraints of vol- tage and line current limit from two viewpoints ((1) distri- bution loss and (2) voltage imbalance rate). In the pro- posed evaluation method, after several high-ranking can- didates with small distribution loss are extracted by com- binatorial optimization method, each candidate is eva- luated from the two viewpoints using EMTP (Electro- Magnetic Transients Program). The standard analytical model of the distribution network based on the practical data is constructed to multi evaluate the distribution net- work configuration candidates. The constructed model has 4 distribution substations, 72 feeders, 450 switches, 1,728 single-phase loads, and 54 distributed generators (DG). This model has 2 450 configuration candidates. In order to examine the validity of the proposed evaluation method, the numerical simulations are carried out for a standard analytical distribution network model with DGs.

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