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World Journal of Engineering Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

ISSN 2454-695X

Impact Factor : 7.029

ICV : 79.45

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Abstract

IMPROVEMENT OF POWER QUALITY USING PMSG AND CASCADED MULTI CELL TRANS QUASI Z-SOURCE INVERTER

C. Nagarajan, N. Manikandan*, J. Bharath and G. Selvakumar

ABSTRACT

This paper describes the improvement of power quality using PMSG and Cascaded Multi Cell Trans Quasi-Z-Source Inverter (CMCTQZSI). Nowadays Permanent magnet synchronous generators are widely used due to the special characteristics of PMSG such as low weight and volume, high performance, and no need of external power supply for permanent magnet excitation. The PMSG overcome the induction Generator and other generators, owing to it can perform without absorb the grid power. In this paper the Trans quasi Z-source inverter is a present that is a novel topology conjugated from the traditional Z source Inverter. The CMCTQZSI has both buck and boost capabilities as they allow operation of the inverter in the shoot through state. By controlling the shoot through state of IGBTs in the Inverter system minimizes the line harmonics, increase power factor, and to improves boosting ratio and output voltage range a cascaded impression is proposed with adopting multi-winding transformer, which provides an option for this manuscript to use coupled inductor as an alternative of multi-winding transformer and remains the matching voltage gain as cascaded multi cell Trans quasi-Z-source inverter. The parallel correlation of the method is essential to reduce the voltage stresses and to improve the input current gain of the inverter. By using MALAB Simulation, harmonics can be reduced up to 0.82% and also DC side can be boosted up to our required level 200 - 1000 V achievable.

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