微电网中混合储能系统的电源模型研究

Power model research of micro-grid hybrid energy storage

微电网中含有负荷、发电、输配电等系统,为了保持电能质量和系统可靠性,就必须保持功率的动态平衡,储能系统通过吸收和发出功率保证了系统的稳定及供电质量的可靠。简要分析了储能技术的现状及发展,阐述了适用于微网的超级电容器与锂电池混合储能结构研究的意义和价值,比较全面地介绍了二种超级电容器与五种锂电池的常用模型,分别说明了优点和不足之处,并进行了比较。

Micro-grid contains load, power generation and power transmission and distribution systems. In order to maintain power quality and system reliability, it is necessary to maintain the dynamic balance of power. Energy storage system ensures the stability of the system and reliable power quality by absorption and issue of power. The present situation and development of energy storage technology were analyzed; the study meaning and value of the super capacitors and lithium-ion batteries hybrid energy storage structure for micro-network were expounded. The commonly used models of two kinds of super capacitors and five kinds of lithium batteries were introduced; the strengths and weaknesses were respectively illustrated and compared.