research

Control strategy research for PV DC microgrid with hybrid storage system

Abstract

以光伏、风电等可再生能源为主的分布式发电技术因为其随机性、不稳定性,对配电网潮流改变带来的安全性等问题,其发展得到一定的制约。微电网被广泛认为是解决分布式发电技术应用瓶颈的有效解决方案,而直流微电网以直流形式传输电能,控制结构简单,不需考虑频率和相位,系统损耗小,效率高,也更加适合越来越多的直流电器的接入,因此具有很强的推广实用价值。本文在研究了直流微电网的国内外研究发展现状、架构,以及包括控制技术、储能技术、保护技术等关键技术基础上,对包含有蓄电池和超级电容器在内的光伏直流微电网系统进行了研究。 首先对系统中的微电源,包括光伏电池、蓄电池和超级电容器的工作原理和数学模型做了研究。同时,对光...As the installed capacity increasing, the corresponding drawbacks of renewable energy such as photovoltaic and wind power began to emerge, like the instability and randomness of renewable energy. At the same time, the power flow direction changed and affect the safety of the system. They limit the application of the distributed generation technology. On this basis, the concept of microgrid is wide...学位:工学硕士院系专业:能源学院_光伏工程学号:3242013115228

    Similar works