Distributed Control of Multiple Electric Springs for Voltage Control in Microgrid
File(s)
Accepted version
Author(s)
Chen, Xia
Hou, Yunhe
Hui, SY Ron
Type
Journal Article
Abstract
Dispersed distribution of many inverter-based electric springs (ESs) over the power grid as a means to provide stability support for smart grid against high penetration of intermittent renewable power has been suggested recently. While single ES has its own local controller, their wide dispersion makes it difficult to coordinate multiple ESs operation. In this paper, a complete design and implementation procedure of the consensus control methodology for the distributed voltage control of multiple ES is presented. First, the specific control scheme for the single ES is designed by introducing the proportional resonant controller. Then, incorporating with the consensus algorithm by neighboring information exchange instead of global communication, the control strategy for multiple ESs is implemented to discover the voltage reference which will be assigned to ESs for tracking the reference voltage. Compared with the conventional droop control, the scheme can maintain the voltage level of the critical load without sacrificing the voltage control accuracy. Simulation results show that the distributed voltage control can guarantee the overall coordination of parallel ESs under various operation conditions.
Date Issued
2016-11-24
Date Acceptance
2016-11-20
Citation
IEEE Transactions on Smart Grid, 2016, 8 (3), pp.1350-1359
ISSN
1949-3061
Publisher
Institute of Electrical and Electronics Engineers
Start Page
1350
End Page
1359
Journal / Book Title
IEEE Transactions on Smart Grid
Volume
8
Issue
3
Copyright Statement
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Electric springs
distributed control
microgrid
renewables
STEADY-STATE ANALYSIS
DROOP CONTROL METHOD
COOPERATIVE CONTROL
PARALLEL INVERTERS
MULTIAGENT SYSTEMS
SECONDARY CONTROL
DC MICROGRIDS
OPERATION
CONSENSUS
Publication Status
Published