Modulation Strategy for a Single-Stage Bidirectional and Isolated AC–DC Matrix Converter for Energy Storage Systems

This paper presents a new modulation and control strategies for the high-frequency link matrix converter (HFLMC). The proposed method aims to achieve controllable power factor in the grid interface as well as voltage and current regulation for a battery energy storage device. The matrix converter (M...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2018-04, Vol.65 (4), p.3458-3468
Main Authors: Varajao, Diogo, Araujo, Rui Esteves, Miranda, Luis Miguel, Lopes, Joao A. Pecas
Format: Article
Language:English
Subjects:
AC-DC power converters
AC–DC power conversion
Alternating current
Battery chargers
Computer simulation
Electric converters
Electric vehicle charging
Electric vehicles
Energy storage
Fuel consumption
Mathematical analysis
Matrix converters
Modulation
Phase modulation
Power factor
Service life
Silicon carbide
silicon carbide (SiC)
Soft switching
space vector pulsewidth modulation
Stability
Storage systems
Voltage control
Weight reduction
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Summary:This paper presents a new modulation and control strategies for the high-frequency link matrix converter (HFLMC). The proposed method aims to achieve controllable power factor in the grid interface as well as voltage and current regulation for a battery energy storage device. The matrix converter (MC) is a key element of the system, since it performs a direct ac to ac conversion between the grid and the power transformer, dispensing the traditional dc-link capacitors. Therefore, the circuit volume and weight are reduced and a longer service life is expected when compared with the existing technical solutions. A prototype was built to validate the mathematical analysis and the simulation results. Experimental tests developed in this paper show the capability of controling the grid currents in the synchronous reference frame in order to provide grid services. Simultaneously, the battery current is well regulated with small ripple, which makes this converter ideal for battery charging of electric vehicles and energy storage applications.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2017.2752123