Voltage compensator based on a direct matrix converter without energy storage

The objective of this study is to present a voltage compensator based on a matrix converter without energy storage, which can cope with common power quality problems presented in power distribution systems. The proposed scheme acquires from the grid the necessary energy during the disturbance, which...

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Bibliographic Details
Published in:IET power electronics 2015-03, Vol.8 (3), p.321-332
Main Authors: Lozano‐Garcia, Jose M., Ramirez, Juan M.
Format: Article
Language:English
Subjects:
common power quality problem
compensation voltages
Compensators
control strategy
direct matrix converter
Electric potential
Energy storage
Harmonic distortion
laboratory scale prototype
Mathematical models
Matrix converters
matrix convertors
MDSVM
modified direct space vector modulation
numerical simulation
power distribution control
power distribution systems
power supply quality
Strategy
supply voltage
unbalanced conditions
unbalanced input voltage conditions
Voltage
voltage compensator
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Summary:The objective of this study is to present a voltage compensator based on a matrix converter without energy storage, which can cope with common power quality problems presented in power distribution systems. The proposed scheme acquires from the grid the necessary energy during the disturbance, which eliminates the drawbacks imposed by the use of a dc‐link and the need of energy storage components. A matrix converter study under unbalanced input voltage conditions is exposed, as well as a detailed explanation of the proposed modified direct space vector modulation (MDSVM). It has been verified that even when the supply voltage exhibits unbalanced conditions and harmonic distortion, the control strategy does not exhibit difficulties to synthesise the compensation voltages, provided the restrictions imposed by the formulation are fulfilled. Numerical simulations and experimental results from a laboratory scale prototype are presented to validate the performance of the compensator.
ISSN:1755-4535
1755-4543
1755-4543
DOI:10.1049/iet-pel.2014.0099