Analysis and Operation of a High DC-AC Gain 3- ϕ Capacitor Clamped Boost Inverter

Dogga Raveendhra, Poojitha Rajana, Beeramangalla Lakshminarasaiah Narasimharaju, Yaramasu Suri Babu, Eugen Rusu and Hady Habib Fayek
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Dogga Raveendhra: EEE Department, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad 500090, India
Poojitha Rajana: Zunik Energies Pvt. Ltd., I-2, TIDES Business Incubator, IIT Roorkee, Roorkee 247667, India
Beeramangalla Lakshminarasaiah Narasimharaju: Electrical Engineering Department, National Institute of Technology, Warangal 506004, India
Yaramasu Suri Babu: Electrical & Electronics Engineering Department, R.V.R. & J.C. College of Engineering, Guntur 522019, India
Eugen Rusu: Department of Mechanical Engineering, Faculty of Engineering, ‘Dunarea de Jos’ University of Galati, Domneasca Street, 800008 Galati, Romania
Hady Habib Fayek: Electromechanics Engineering Department, Faculty of Engineering, Heliopolis University, Cairo 11785, Egypt

Energies, 2022, vol. 15, issue 8, 1-25

Abstract: This article introduces a three-phase capacitor clamped inverter with inherent boost capability by relocating the filter components from the AC side to the configuration’s midpoint. This topology has several distinguishing characteristics, including: (a) low component count; (b) high DC-AC gain; (c) decreased capacitor voltage stresses; (d) improved power quality (extremely low voltage and current THDs) without the use of an AC-side filter; and (e) decreased voltage stresses on power semiconductor devices. Simulations were carried out on the MATLAB Simulink platform, and results under steady-state conditions, load and reference change conditions, and phase sequence change conditions, along with THD profiles, are presented. This inverter’s performance was compared to that of similar converters with intrinsic gain. A 1200 W experimental prototype was built to demonstrate the system’s feasibility and benefits. When compared to existing topologies, simulation and experimental results indicate that the proposed inverter provides superior high gain, smooth control, low stress, and a long life time.

Keywords: step up inverter; single stage inverter; capacitor clamped inverter; high-gain converter; DC–AC power converter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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