作者:
陈家俊，蒋铁铮，周勇，李渊博
关键词:
电压骤降 ； 凹陷域 ； 改进萤火虫算法 ； 多目标优化
摘要:
Firstly the voltage sag and the voltage sag region are analyzed by the combination of fault location method with critical distance method and on this basis the economic loss due to voltage sag is reasonably evaluated. A multi-objective optimization model, in which the minimized investment cost of distributed generation (DG) and minimized economic loss due to voltage sag are included, is established. In view of such defects as prematurity, slow convergence speed and over-dependent on control parameters in traditional firefly algorithm, the integrating chaotic search strategy with firefly algorithm an improved multi-objective firefly algorithm is put forward. To overcome the defect of over-dependent on control parameter, using such properties of chaos theory as randomness, ergodicity and regularity, the parameters of the firefly algorithm is adjusted and applied in the multi-objective optimal allocation of DG. Case study results show that the proposed algorithm possesses good adaptability.
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