并网状态下光伏微源控制  

Intermittent Micro Source Control in a Networking State

作　　者：禹红 李灵利 罗继平[2] 向敏 

机构地区：[1]湖南省水利水电职业技术学院,湖南长沙410131 [2]长沙理工大学电气与信息工程学院,湖南长沙410077

出　　处：《中国电力》2015年第3期144-149,共6页Electric Power

基　　金：湖南省水利科技重点项目(SLT1012);湖南省科技计划项目(2014GK3006)

摘　　要：新能源在并网状态下传统的控制方法一般采用设定功率输出,但随着这种电源的大量增加,如继续采用传统的控制方法将大大降低电网的惯性,惯性的降低意味着系统的抗冲击的能力变弱,系统的稳定性降低。针对这种状况提出对于并网的间隙性微源采用改进型下垂控制,将微电源有功输出能力考虑在内,与实际运行情况更符,并给出了联网状态下逆变器及蓄电池详细控制框图。使间隙性新能源能主动的参与系统的电压和频率调节,提高系统的惯性,增强稳定性。通过仿真软件验证了其可行性。For intermittent new energy, in the state of networking the traditional method of control is generally used to set the power output but with a significant increase of Intermittent micro source, if it continues to use the traditional method of controlling the grid will substantially reduce the inertia, the ability to reduce the impact of inertia means that the system becomes stability is weak, the system is reduced. In view of this situation we propose improved droop control for networkedly Intermitten micro-source, taking active micro-power output capability into account, and the actual operation more characters and give a detailed inverter and battery, state control block in networking. Intermittent new energy can actively participate in the voltage and frequency regulation system to improve inertial systems, and enhance stability. The simulation software has been validated its feasibility.

关 键 词：下垂控制 间歇性能源 光伏 微网 惯性 

分 类 号：TM76[电气工程—电力系统及自动化] TM912