Distributed Event-Triggered Secondary Control for Islanded Microgrids With Proper Trigger Condition Checking Period

The conventional distributed secondary control of islanded microgrids (MGs) often requires each distributed generator (DG) to communicate with its neighboring DGs successively with a small fixed sampling period, which is neither economical nor efficient for MGs due to its redundant communications. T...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on smart grid 2022-03, Vol.13 (2), p.837-848
Main Authors: Chen, Yulin, Li, Chaoyong, Qi, Donglian, Li, Zhenming, Wang, Zhenyu, Zhang, Jianliang
Format: Article
Language:English
Subjects:
Communication
Convergence
Cyber-physical systems
distributed control
Distributed generation
event-triggered control
Frequency control
Frequency measurement
Microgrids
Reactive power
Voltage control
Voltage measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The conventional distributed secondary control of islanded microgrids (MGs) often requires each distributed generator (DG) to communicate with its neighboring DGs successively with a small fixed sampling period, which is neither economical nor efficient for MGs due to its redundant communications. To this end, this paper proposes a distributed event-triggered control strategy for the secondary control in MGs to reduce the requirement for communications. By designing the trigger function and the trigger condition for each DG with Lyapunov method, the secondary control aim is achieved with an exponential convergence rate only when each DG communicating with its neighbors at some particular events. In addition, a proper trigger condition checking period is provided based on the proposed event-triggered control scheme, with which the computation requirement can be reduced. The proposed distribute event-triggered secondary control scheme has been tested on a cyber-physical MG, and its effectiveness is validated by the simulation results.
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2021.3115180