Performance investigation of grid-connected residential PV-battery system focusing on enhancing self-consumption and peak shaving in Kyushu, Japan
Performance investigation of grid-connected residential PV-battery system focusing on enhancing self-consumption and peak shaving in Kyushu, Japan
复制标题
DOI：
10.1016/j.renene.2018.04.074
复制
发表时间：
2018-11-01
期刊：
影响因子：
8.7
通讯作者：
Ruan, Yingjun
中科院分区：
文献类型：
--
作者：
Li, Yanxue;Gao, Weijun;Ruan, Yingjun
随着光伏发电普及率的提高，分布式光伏并网系统的性能以及对公共电网的聚集效应需要识别和分析。在日本九州电力市场条件下，基于模拟的光伏发电量、历史户用负荷、技术经济参数，对住宅光伏电池并网系统的技术经济性能进行了模拟。结果表明：居民光伏自耗率在月间变化显著，随着电池容量的增加，居民光伏自耗率会增加;居民光伏自耗率在月间变化明显，其值在很大程度上取决于用户负荷特征和光伏发电量特征。私人家庭存储调度的优化管理策略显示了电网调峰的潜力。假设家庭光伏电池系统累计发电量共分担电网负荷的2.0%，分析表明，建议的电网支持光伏电池系统可以参与降低电网峰值负荷的1.1%。由于高容量成本，电池系统的经济可行性和吸收高度依赖于直接补贴，光伏电池系统的投资回收期约为18年，没有任何激励政策。提高电价、降低光伏上网电价和降低电池成本可以为家用光伏电池系统提供更大的吸引力。(C)2018爱思唯尔有限公司版权所有
With increasing PV penetration level, performances of the distributed grid-connected PV system and aggregated effects on public grid need to be identified and analyzed. This paper simulated the techno-economic performances of the grid-connected residential PV-battery system based on simulated PV generations, history household load, technical and economical parameters under the electricity market in Kyushu, Japan. Results indicate that residential PV self-consumption ratios vary significantly between months, it can increase by adding relative battery size, the increasing rate shows obvious variations between months and its value highly depends on features of the customer load and PV generation profiles. Optimal management strategies for private home storage dispatch show a potential in grid peak load shaving. Assumed accumulative generation of home PV-battery system totally shares 2.0% of grid load, analysis indicates that proposed grid-supporting PV-battery systems can participate in 1.1% reduction of peak grid load. The economic feasibility and uptake of battery system highly depend on direct subsidies due to high capacity cost, payback period of PV-battery system is around 18 years without any incentive policies. Increasing electricity pricing, decreasing PV feed-in tariff and falling cost in battery can provide the home PV-battery system more attractiveness. (C) 2018 Elsevier Ltd. All rights reserved.