储能电池实现风光储微电网灵活安全运行的仿真研究SIMULATION OF USING STORAGE ENERGY TO REALIZE FLEXIBLE AND SAFE OPERATION OF WIND-PV-STORAGE ENERGY MICROGRID
贾伟青,陈俊清,赵耀,梁晓莉,任永峰
摘要(Abstract):
风光储微电网将分布式电源及储能装置进行了高效整合,实现了能源的优势互补,为改善弃风、弃光问题提供了解决方案。根据风电机组、光伏发电系统和储能电池系统的数学模型,构建了源-网-荷-储一体化的风光储微电网,提出了一种跟随微电网功率变化的储能电池协调控制策略,以维持微电网的功率平衡,防止储能电池过度充、放电。在MATLAB/Simulink仿真环境下,建立了微电网及其内部的源、储模型,结合负荷需求响应确定微电网控制策略,将典型日的实测风速和太阳辐照度数据导入模型,分别在风光储微电网并网运行工况和孤岛运行负载阶跃工况下对各子系统的运行特性进行了分析,验证了微电网能量控制策略的有效性和仿真模型搭建的正确性。
关键词(KeyWords): 微电网;储能;协调控制;负荷需求;荷电状态
基金项目(Foundation): 国家自然科学基金资助项目(51967016;51567020);; 内蒙古自治区科技计划资助项目(201802035)
作者(Author): 贾伟青,陈俊清,赵耀,梁晓莉,任永峰
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