光伏储能系统的电池容量配置及经济性分析Battery Capacity Configuration and Economic Analysis of Photovoltaics Energy Storage System
倪驰昊,刘学智
NI Chihao,LIU Xuezhi
摘要(Abstract):
储能系统和光伏发电相结合的统筹规划能够提高系统的光伏自我消纳能力,增强可协调性和灵活性,提升经济效益,具备广阔的发展前景,光伏发电和储能设备容量合理配置与运行的重要性日益显现。建立电池储能的容量和功率配置的线性规划模型,将电池容量、功率及系统全年电池充放电功率、购电售电功率等参数进行统一优化计算,得出经济效益最优化的电池充放电策略及电池容量和功率配置结果。以某工业园区为研究对象,提出获得最佳经济效益的储能电池规划方案,以内部收益率、光伏自我消纳率等指标为参考,研究光伏上网价格、储能电池成本、电池寿命和折现率等因素对电池储能容量配置和经济效益的变化规律,以及电池储能在系统中发挥的作用。
The integrated planning of energy storage and photovoltaic power generation system can improve the PV self-dissipation capability, enhance coordination and flexibility, and improve economic benefits. It has broad development prospects and the importance of configuration of photovoltaic and energy storage equipment is also growing. A linear planning model of battery energy storage capacity and power configuration was established for collective optimum calculation on battery capacity, power, annual battery charge and discharge power and power purchase and sales power to conclude a battery charge and discharge strategy and capacity configuration with maximum economic benefits. The paper takes a real case study of an industrial park to determine the planning scheme of batteries that can achieve the best economic benefits; at the same time, based on the resulting internal rate of return and the photovoltaic self-distribution rate, the paper studies the change rules of feed-in tariff of photovoltaic power, energy storage battery cost, battery life and discount rate that go with battery energy storage capacity configuration and economic benefits as well as the role of the battery in this system.
关键词(KeyWords):
光伏发电;电池储能;容量配置与运行;内部收益率;光伏自我消纳率
photovoltaic power generation;battery energy storage;capacity configuration and operation;internal rate of return;PV self-consumption ratio
基金项目(Foundation): 上海市浦江人才计划资助(17PJ1404800)
作者(Author):
倪驰昊,刘学智
NI Chihao,LIU Xuezhi
DOI: 10.19585/j.zjdl.201901001
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