alexa Mitigation of Voltage Sag, Swell and Harmonics by Dynamic Voltage Restorer Using Matrix Converter
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Special Issue Article

Mitigation of Voltage Sag, Swell and Harmonics by Dynamic Voltage Restorer Using Matrix Converter

Resmi.S1, Reshmi.V2, Joffie Jacob3
  1. M.Tech Student, Dept. of EEE, Amal Jyothi College of Engineering, Kanjirapally, Kerala, India
  2. Asst. Prof., Dept. of EEE Amal Jyothi College of Engineering, Kanjirapally, Kerala, India
  3. Asst. Prof., Dept. of EEE Amal Jyothi College of Engineering, Kanjirapally, Kerala, India
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Abstract

In the past decades, the Power Quality (PQ) has become a critical issue in highly automated industries and sensitive load centers. The voltage quality is the most important part of the PQ for customers. The voltage disturbances in the form of voltage sag, swell and harmonics can cause huge financial losses. In the past few years, the power electronic solutions have been proposed to avoid these problems. The Dynamic Voltage Restorer (DVR) is one of the solutions. This paper proposes a topology for three phase DVR which is able to compensate multiple voltage with a simple topology. The proposed DVR is based on the three-phase direct AC/AC converter which is energized from the main grid. As a result, there is no need for energy storage elements and dc link capacitors. The proposed topology can deal with high voltage with low voltage rating switches. Therefore, the switches can be IGBTs without needing an auxiliary force commutation circuit as in thyristors which are high voltage switches. The simulation results in PSCAD/EMTDC environment shows that this topology operates correctly and the voltage of sensitive load is completely controlled.

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