Power Management, Voltage Control and Grid Synchronization of Microgrids in Real Time

This paper presents an efficient power management, voltage balancing and grid synchronization control strategy to increase the stability and reliability of distributed energy resources (DERs)-based microgrid. The microgrid is composed of Photovoltaic, Double Fed Induction Generator-based wind and di...

Full description

Saved in:
Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2021-02, Vol.46 (2), p.1411-1429
Main Authors: Worku, Muhammed Y., Hassan, Mohamed A., Abido, Mohamed A.
Format: Article
Language:English
Subjects:
Capacitor banks
Control stability
Controllers
Diesel generators
Distributed generation
Electric potential
Energy sources
Engineering
Humanities and Social Sciences
Induction generators
multidisciplinary
Power management
Real time
Research Article > Electrical Engineering
Science
Synchronism
Time synchronization
Voltage
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:This paper presents an efficient power management, voltage balancing and grid synchronization control strategy to increase the stability and reliability of distributed energy resources (DERs)-based microgrid. The microgrid is composed of Photovoltaic, Double Fed Induction Generator-based wind and diesel generator with critical and non-critical loads. The system model and the control strategy have been developed in Real Time Digital Simulator. The coordination and power management of the DERs in both grid connected and island operation modes is implemented. One distinct challenge of microgrid operation in island mode is the stable control of frequency. A controller is proposed and implemented in the island mode for the diesel generator equipped with the required inertia to maintain the microgrid rated frequency by operating in the isochronous mode. To restore the microgrid back to the utility, the voltage, frequency and phase angle of the islanded microgrid should match with that of the grid network within specified limits to avoid transient instability. Switched capacitor banks are connected at the point of common coupling to balance the voltage for microgrid synchronization. The CIGRE medium voltage test bench system is used to implement the DERs and their controller. The proposed control approach has potential applications for the complete operation of microgrids by properly controlling the power, voltage and frequency in both grid and island modes. The real time digital simulator results verify the effectiveness and superiority of the proposed control scheme in grid connected, island and grid resynchronization scenarios.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-020-05062-9