摘要
针对独立微电网中传统主从控制策略存在响应速度慢和抗负荷波动能力不足的问题,改进下垂控制结构,并结合模糊比例-积分(proportion integration,PI)算法,提出一种新型主从控制策略,根据电压变化,利用模糊算法实时优化下垂控制参数,可大大提高系统的负荷响应能力,减小负荷波动对系统造成的影响,有效提高多微源微电网的稳定性和鲁棒性。通过电力系统计算机辅助设计和电磁暂态模拟程序(power system computer aided design and electric magnetic transient in DC system,PSCAD/EMTDC)仿真软件验证新型控制策略的有效性。
In allusion to problems of slow response speed and insufficient resistance to load fluctuation in traditional master-slave control strategies for independent micro-grids, this paper presents a kind of new master-slave control strategy on the basis of improving droop control structure and combining fuzzy proportion integration （PI） algorithm. According to voltage change, this strategy uses fuzzy algorithm to optimize droop control parameters in time, which can greatly improve load response ability of the system, reduce affect of load fluctuation on the system and effectively improve stability and robust of the multiple micro-source micro-grid. By means of power system computer aided design and electric magnetic transient in DC system （PSCAD/EMTDC） simulation software, it verifies validity of this new control strategy.
出处
《广东电力》
2017年第6期36-39,共4页
Guangdong Electric Power
基金
国家自然科学基金项目(61275038)
上海市重点科技攻关计划(14110500700)
上海市科学技术委员会工程技术研究中心项目资助(14DZ2251100)
关键词
分布式电源
微电网
模糊算法
主从控制
distributed generation
micro-grid
fuzzy algorithm
master-slave control
