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자료유형
학술저널
저자정보
S. Nagaraja Rao (JNT University) D. V. Ashok Kumar (RGMCET) Ch. Sai Babu (JNT University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.13 No.4
발행연도
2018.7
수록면
1,528 - 1,538 (11page)

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초록· 키워드

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In this paper, configuration of 1-ø seven-level boost DC-link cascade based reversing voltage multilevel inverter (BDCLCRV MLI) is proposed for uninterrupted power supply (UPS) applications. It consists of three level boost converter, level generation unit and full bridge circuit for polarity generation. When compared with conventional boost cascaded H-bridge MLI configurations, the proposed system results in reduction of DC sources, reduced power switches and gate drive requirements. Inverter switching is accomplished by providing appropriate switching angles that is generated by any optimization switching angle techniques. Here, round modulation control (RMC) method is taken as the optimization method and switching angles are derived and the same is compared with various switching angles methods i.e., equal-phase (EP) method, and half-equal-phase (HEP) method which results in improved quality of obtained AC power with lowest total harmonic distortion (THD). Reduction in DC sources and switch count makes the system more cost effective. A simulation and prototype model of 1-ø seven-level BDCLCRV MLI system is developed and its performance is analyzed for various operating conditions.

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Abstract
1. Introduction
2. Structure of Seven-Level BDCLCRV MLI System
3. DC – DC Multilevel Boost Converter Configuration
4. Proposed Reversing Voltage Inverter Topology
5. Proposed Modulation Strategies
6. Simulation And Experimentation of BDCLCRV MLI
7. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-560-002230606