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Title: A novel single-reference six-pulse-modulation (SRSPM) technique-based interleaved high-frequency three-phase inverter for fuel cell vehicles
Authors: Prasanna, U.R.
Rathore, A.K. 
Keywords: Electric vehicles
Fuel cell vehicles
Six-pulse modulation
Three-phase inverter
Issue Date: 2013
Citation: Prasanna, U.R., Rathore, A.K. (2013). A novel single-reference six-pulse-modulation (SRSPM) technique-based interleaved high-frequency three-phase inverter for fuel cell vehicles. IEEE Transactions on Power Electronics 28 (12) : 5547-5556. ScholarBank@NUS Repository.
Abstract: This paper presents a hybrid modulation technique consisting of singe-reference six-pulse-modulation (SRSPM) for front-end dc/dc converter and 33% modulation for three-phase inverter. Employing proposed novel SRSPM to control front-end dc/dc converter, high frequency (HF) pulsating dc voltage waveform is produced, which is equivalent to six-pulse output at 6× line frequency (rectified 6-pulse output of balanced three-phase ac waveforms) once averaged. It reduces the control complexity owing to single-reference three-phase modulation as compared to conventional three-reference three-phase SPWM. In addition, it relives the need of dc-link capacitor reducing the cost and volume. Eliminating dc link capacitor helps in retaining the modulated information at the input of the three-phase inverter. It needs only 33% (one third) modulation of the inverter devices to generate balanced three-phase voltage waveforms resulting in significant saving in (at least 66%) switching losses of inverter semiconductor devices. At any instant of line cycle, only two switches are required to switch at HF and remaining switches retain their unique state of either ON or OFF. Besides, inverter devices are not commutated when the current through them is at its peak value. Drop in switching loss accounts to be around 86.6% in comparison with a standard voltage source inverter (VSI) employing standard three-phase sine pulse width modulation. This paper explains operation and analysis of the HF two-stage inverter modulated by the proposed novel modulation scheme. Analysis has been verified by simulation results using PSIM9.0.4. Experimental results demonstrate effectiveness of the proposed modulation. © 1986-2012 IEEE.
Source Title: IEEE Transactions on Power Electronics
ISSN: 08858993
DOI: 10.1109/TPEL.2013.2258405
Appears in Collections:Staff Publications

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