Abstract
In this paper, a novel approach to matrix-converter-based variable frequency drives is presented. It is proposed that these drives are used to provide or draw out reactive power from the power distribution line, keeping the power factor close to unit and, simultaneously, performing their primary function of motor powering and speed control. This application of matrix-converter-based variable frequency drives is required due to the need to compensate for capacitive reactive power generated by light emitting diode lighting devices. In this study, the reactive power compensation range of the matrix-converter-based variable frequency drive is determined, and a method is proposed to extend the compensation range.
Highlights
Power generation, transmission, and conversion make up a complex process that requires the interconnected operation of various components in a power system
Various kinds of compensation devices are applied in AC power systems
The evolution of LED light technology and variable frequency drive (VFD) technology has changed the type of reactive power available in 0.4 kV power distribution lines
Summary
Transmission, and conversion make up a complex process that requires the interconnected operation of various components in a power system. They did not analyze the reasons for this or take into account the specific details about the voltage converters present in LED light sources They stated that the use of LED lighting reduces the use of real power, but increases the generation of leading reactive power, which causes compensation problems. The authors of the publication suggest stricter standardization of the power factor values of the converters used in LEDs. In [3], an analysis of other aspects of LED application is conducted, and LED current and voltage diagrams showing that LED light sources generate leading reactive power are given. The authors of this publication only propose a control strategy that provides current control and a power factor close to unit They did not measure the ability to compensate the reactive power produced by LED wall screens. To investigate a way to extend the reactive power compensation range
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