摘要
为了提高光伏系统的利用率,需要研究家庭和企业用户的分布式光伏及储能电池混合系统的最优运营模式。以居民用户和企业用户为对象,分别建立了用户无光伏发电、光伏电力全部出售给电网、自发自用余电上网以及光储系统下自发自用余电上网这4种运营模式下用户的成本效益模型,分析了不同运营模式下系统的经济性。结果表明:在无储能的光伏发电系统中,光伏系统的装机容量越高,用户的净利润越高,并且自发自用,余电上网是收益最高的用电模式。在有储能的光伏发电系统中,考察了6种储能电池在分布式光伏/储能电池系统中的经济性,发现对于居民用户,采用储能系统消纳光伏电力的经济性较低;而对于企业用户,储能系统的经济性较前者有一定程度的提高。随着储能电池成本的降低,企业用户配置光伏储能电池系统会有较好的应用前景,其中水钠电池的经济性最高。研究成果可为家庭和企业用户光伏发电系统运营模式的选择提供理论依据。
To improve the utilization of photovoltaic（ PV）,it is necessary to analysis the best operation modes of PV power systems collocating with or without energy storage batteries for the residential users and enterprise users. This paper establishes the cost-benefit analysis models for residential and enterprise users in four modes respectively： there is no PV power generation; PV electricity is all sold to the grid; power generated is for its own use first and surplus PV electricity is sold to the grid with and without energy storage batteries. And then,this paper analyzes the economic performance of the system under different operation modes. The results show that the more capacity of PV power system without energy storage,the higher the users＇ profit; and the mode of power generated for its own use first and surplus PV power sold to the grid without battery gets the highest profit among the four modes. This paper studies the economy of 6 kinds of energy storage batteries in distributed PV /energy storage battery system for the PV power generation system with energy storage. The results show that it is less economical that PV power systems collocating with energy storage batteries for residential users while its economy has improved for enterprise users. With the cost reduction of energy storage battery,it has better application prospect that enterprise users collocating with hybrid systems containing distributed PV power and battery stored energy,in which the aqueous Na-ion battery has the highest economy. The research results can provide theoretical basis for the residential and enterprise users＇ choice of the operation modes of PV power generation system.
出处
《电力建设》
北大核心
2016年第8期102-107,共6页
Electric Power Construction
基金
教育部人文社会科学研究基金项目(15YJCZH147
16YJAZH035)
上海市社科规划一般课题基金项目(2015BGL002)
上海市科委项目(16692102200)
上海市联盟计划项目(LM201658)
关键词
光伏发电
储能
运营模式
经济性分析
家庭用户
企业用户
photovoltaic power generation
energy storage
operation modes
economic analysis
residential users
enterprise users
