Distributed power supply site selection constant volume optimized method

Abstract

The invention discloses a distributed power supply site selection constant volume optimized method and belongs to the technical field of distributed generation. The distributed power supply site selection constant volume optimized method includes the following steps: firstly, allocating plans according to a power distribution network structure and capacity of the distributed power supply position, generating individual positional information, generating search groups and investigation groups according to an improved particle swarm optimization; conducting load flow calculation of plans corresponding to each individual in the search groups and the investigation groups, and calculating voltage and power value of each node; creating comprehensive evaluation index according to the principal component analysis, and calculating corresponding adaptation value according to the distribution network structure, the distributed power supply capacity, node voltage, power value and other parameters in each individual; regulating the positional information of the search groups according to the adaptation value, comparing the positional information of the search groups with the investigation groups, generating sub-groups, iterating repeatedly until obtaining the maximum iteration time, and treating the obtained optimal solution of the groups to be the optimal plan of the distributed power supply site selection constant volume.

Description

technical field [0001] The invention relates to an optimization method for site selection and capacity determination of distributed power sources, which belongs to the technical field of distributed power generation. Background technique [0002] Distributed power sources mostly use renewable energy, with small installed capacity and strong terrain adaptability. The grid-connected operation of distributed power stations and the power grid is an ideal way to comprehensively utilize resources and efficiently supply power to users. With the increasingly widespread application of distributed power generation technology, its impact on grid operation is gradually exposed. Therefore, the optimization method of distributed power generation has also received people's attention. [0003] The optimization of the location and capacity of distributed power generation refers to solving some problems caused by the grid-connected operation of distributed power generation by optimizing the ...

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Problems solved by technology

[0006] The existing optimization method for site selection and capacity determination of distributed power generation uses economical efficiency or network loss as the evaluation index, and the obtained optimization scheme has strong pertinence; the optimization algorithm adopted is traditional heuristic algorithm or improved heuristic algorithm Algorithm, there are problems of local optimum and convergence in the process of implementing the algorithm

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