Research on Optimal Allocation of PV-Wind-Storage-Diesel Based on Two Layers of Coordinated Dispatch

doi:10.11930/j.issn.1004-9649.2016.09.142.06

Abstract

Abstract: To solve deep battery discharge problem in microgrid constructed by photovoltaic(PV)-Wind-Storage-Diesel system, two layers of coordinated dispatch strategies is presented. In the first layer, diesel generators and hybrid energy storage system are coordinated dispatch with each other. The diesel generators starts before battery state of charge(SOC) reaches lower limit. In the second layer, the power of batteries and super capacitors are distributed based on dynamic characteristics of the hybrid energy storage system. Based on the coordinated dispatch strategies, optimization models of distribution generations (DGs) are constructed and an improved genetic algorithm is applied in optimal dispatch problem. Testing results with example system verifies the correctness and effectiveness of proposed models, algorithm and coordinated dispatch strategies.

Key words: microgrid system, PV-wind-storage-diesel, optimal allocation, coordinated dispatch, genetic algorithm

CLC Number:

TM615

WU Hongbin, ZHUANG Huaidong, ZHU Xinchao. Research on Optimal Allocation of PV-Wind-Storage-Diesel Based on Two Layers of Coordinated Dispatch[J]. Electric Power, 2016, 49(9): 142-147.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.09.142.06

https://www.electricpower.com.cn/EN/Y2016/V49/I9/142

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