摘要
为了提高微网孤岛模式下的频率质量,提出了一种基于一致性算法的分布式无差调频控制方法。每台逆变器利用其本地及相邻逆变器的有功功率信息,结合带权值的平均一致迭代算法实现有功—频率的控制,其中权值矩阵根据局部度分配权值法确定。该方案可以实现频率的无差调节,同时保证各逆变器输出的有功功率按照其额定容量成比例分配。利用Matlab/Simulink搭建了包含五台逆变器的微网仿真模型,并对该方案进行了仿真验证,仿真结果表明了该方案的正确性与有效性。
A distributed zero-error frequency regulation control method based on consensus algorithm is proposed in order to improve the microgrids＇ frequency quality when operated in islanded mode. Each inverter utilizes its local and neighbors＇ active power information and combines with the weighted average consensus iterative algorithm to realize active power and frequency control. The weight matrix is determined by the local-degree weights method. This strategy could realize zero-error frequency regulation and also guarantee proportional active power sharing among inverters according to the rated power capacities. A microgrid simulation model which includes five inverters is built using Matlab/Simulink. The proposed strategy is used and the simulation results show its correctness and effectiveness.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2017年第21期1-6,共6页
Power System Protection and Control
基金
国家高技术研究发展计划(863计划)(2015AA050603)
国家自然科学基金项目(51507158)
国家电网公司科技项目(PD71-16-024)~~
关键词
微网
孤岛模式
一致性
无差调频
局部度分配权值法
有功功率分配
microgrid
islanded mode
consensus
zero-error frequency regulation
local-degree weights
active power sharing
