Opposition-Based Improved PSO for Optimal Reactive Power Dispatch and Voltage Control

Shengrang Cao, Xiaoqun Ding, Qingyan Wang and Bingyan Chen

Mathematical Problems in Engineering, 2015, vol. 2015, 1-8

Abstract:

An opposition-based improved particle swarm optimization algorithm (OIPSO) is presented for solving multiobjective reactive power optimization problem. OIPSO uses the opposition learning to improve search efficiency, adopts inertia weight factors to balance global and local exploration, and takes crossover and mutation and neighborhood model strategy to enhance population diversity. Then, a new multiobjective model is built, which includes system network loss, voltage dissatisfaction, and switching operation. Based on the market cost prices, objective functions are converted to least-cost model. In modeling process, switching operation cost is described according to the life cycle cost of transformer, and voltage dissatisfaction penalty is developed considering different voltage quality requirements of customers. The experiment is done on the new mathematical model. Through the simulation of IEEE 30-, 118-bus power systems, the results prove that OIPSO is more efficient to solve reactive power optimization problems and the model is more accurate to reflect the real power system operation.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:754582

DOI: 10.1155/2015/754582

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