Discrete Time Distributed Secondary Control of AC Microgrid: A Digital Control Approach

被引:0
|
作者
Annavaram, Devakumar [1 ]
Nayak, Abhishek [1 ]
Mishra, Sukumar [1 ]
机构
[1] IIT Delhi, Dept Elect Engn, New Delhi, India
来源
2022 22ND NATIONAL POWER SYSTEMS CONFERENCE, NPSC | 2022年
关键词
discrete time; distributed control; frequency restoration; power sharing;
D O I
10.1109/NPSC57038.2022.10069953
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Distributed control of microgrids are becoming popular due to their scalability and reliability. Most distributed controllers designed for the microgrids are in the continuous time domain and subsequently implemented on digital controllers, which work in discrete time. Due to sampling time concerns, continuous time-domain control gains may not function well for digital controllers. This paper presents a discrete-time distributed secondary control to achieve frequency restoration and average voltage control in an ac microgrid. The proposed distributed frequency control ensures frequency restoration while maintaining proportionate active power sharing. The distributed voltage and reactive power control guarantee the average microgrid voltage is restored to the reference value and achieves proportionate reactive power sharing. Simulation in MATLAB/Simulink to verify the effectiveness of the proposed control scheme. The proposed controller is implemented on a digital FPGA controller and tested the experimental setup with different loads, and the results are presented.
引用
收藏
页数:6
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