工业用光伏微网运行策略优化与经济性分析

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摘要针对工业用户,以工业用光伏微网系统为研究对象提出了运行策略优化和经济性分析方法。所考虑的经济性指标包括单位电能成本、污染物减排收益和投资回收期；运行策略的优化考虑了不同的并网策略、是否配置储能单元、当地太阳辐射强度等环境因素和系统建设、运行中的各种具体成本,以进一步提高系统的经济性及其带来的污染物减排收益。算例以安装在广东的一个500kW工业用光伏微网系统连续3个月的运行数据为基础进行仿真分析,结果表明经过优化的储能系统的加入有效地提高了系统的经济性和环境效益,同时系统参与大电网削峰填谷的能力也得到了增强。此外,本文也研究了不同参数的敏感性分析和不同安装地点对系统经济性的影响。研究结果对于设计类似的工业用光伏微网系统提供了一定的借鉴并为光伏微网系统的决策者提供决策基础。

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	茆美琴
	金鹏
	张榴晨
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	徐海波

关键词 ：光伏微网系统, 经济性分析, 优化配置, 敏感性分析

Abstract：An economic analysis method and optimal design model of the PV microgrids for industries are proposed in this paper. The economic indexes to evaluate the economic performance of the microgrids include levelized energy cost, emission reduction benefits and payback period. The optimal model considering local solar insolation level and detailed investment costs is established and applied to obtain the optimal configuration of the PV microgrids for four different operation strategies by Particle Swarm Optimization(PSO) method. The simulation results based on three months running data of a 500kW PV microgrid for industries in Guangdong, China, show that the optimal design by the proposed method can meet the technical indicators as well as the economic optimum, and thus effectively optimizing the microgrid with PVs for industries in both economic and environmental way. In addition, the proposed battery tank can not only be used to maximize the utilization of renewable energy, but also enhance the system’s ability of peak load shifting. Besides, the sensitivity of the impact of different parameters and different installed sites on the system is also performed. The results provide a reference for the application of similar projects and basis for the decision-makers of the microgrid with PVs for industries.

Key words： PV microgrid for industries economic analysis optimal design sensitivity analysis

收稿日期: 2013-12-22 出版日期: 2014-06-18

PACS:

TM615

基金资助:国家重点基础研究发展计划项目（973计划）（2009CB219708）,国家自然基金面上项目（51077033）和广东省创新团队项目; （2011N015）资助

作者简介: 茆美琴女,1961年生,教授,博士生导师,研究方向为电力电子和微电网技术。金鹏男,1989年生,硕士研究生,从事微电网能量管理研究。

引用本文:

茆美琴, 金鹏, 张榴晨, 丁勇, 徐海波. 工业用光伏微网运行策略优化与经济性分析[J]. 电工技术学报, 2014, 29(2): 35-45. Mao Meiqin, Jin Peng, Zhang Liuchen, Ding Yong, Xu Haibo. Optimization of Operation Strategies and Economic Analysis of PV Microgrids for Industries. Transactions of China Electrotechnical Society, 2014, 29(2): 35-45.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I2/35

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