Efficiency improvement of converter for switched reluctance motor drives by mixed parallel operation of IGBT and MOSFET

Woothipatanapan, Sakhon; Jangwanitlert, Anuwat; Chancharoensook, P.

doi:10.1109/tencon.2010.5685964

Cited by 11 publications

(5 citation statements)

References 6 publications

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“…SRMs with simple structure have been recognized as potential traction motors for EVs [14], low manufacturing cost, and outstanding torque speed characteristics. However, design and control are difficult and, in addition, acoustic-noise is still a problem.…”

Section: Switched Reluctance Motor (Srm)mentioning

confidence: 99%

Electric Drives in Alternative Fuel Vehicles — Some New Definitions and Methodologies

Zhang¹

2015

New Applications of Electric Drives

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This chapter focuses on some new definitions and methodologies of electric drives that are facing new challenges raised by alternative fuel vehicles. It starts with the objectives, fundamentals, and current research issues of alternative fuel vehicles based electric drives, before moving on to new definitions of unified modeling of the entire electric drive system and design of the proposed DC active power filter aimed at energy storage system chaotic current elimination. Next, novel motor control strategies taking into account alternative fuel vehicle operations are presented for improvement of sensorless drive and flux weakening control performance. Finally, conclusions of this chapter are drawn.

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Section: Switched Reluctance Motor (Srm)mentioning

confidence: 99%

Electric Drives in Alternative Fuel Vehicles — Some New Definitions and Methodologies

Zhang¹

2015

New Applications of Electric Drives

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“…8) can be written as follows: (17) where A and B are the current transition constants of the IGBT/MOSFET pairs at the beginning of IGBT's tail time (t t  t x ), and C and D are the current transition constants of the IGBT/MOSFET pairs during the overlap time (t b  t f ). Table I summarizes the values of the current transition constants used in this study.…”

Section: B Analysis Of Power Losses In the Proposed Convertermentioning

confidence: 99%

“…The turn-on ZCS naturally reduces the switching loss of IGBT; hence, the first MOSFET conduction is redundant. Contrarily, MOSFET in [17] is programmed to conduct only once (i.e., when the IGBT is turned off). However, the switching loss in this case is not optimally minimized because the commutation between IGBT and MOSFET is not a continuous transfer.…”

Section: Introductionmentioning

confidence: 99%

An Improved Asymmetric Half-Bridge Converter for Switched Reluctance Motor in Low-Speed Operation with Current Regulated Mode

Woothipatanapan¹,

Chancharoensook²,

Jangwanitlert³

2015

Journal of Power Electronics

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This study presents a novel method for reducing the switching losses of an asymmetric half-bridge converter for a three-phase, 12/8 switched reluctance motor operated in low speed. In particular, this study aims to reduce the switching-off losses of chopping switches in the converter when operated in the current regulated mode (chopping mode). The proposed method uses the mixed parallel operation of IGBT (chopping switch) and MOSFET (auxiliary switch). MOSFET is precisely controlled to momentarily conduct prior to the turn-off interval of the IGBT. Consequently, the voltage across the switches is clamped to approximately zero, substantially decreasing the turn-off switching losses. The analytical expressions of power losses are extensively elaborated. Compared with the conventional asymmetric half-bridge converter, the modified converter can effectively minimize the switching losses. Therefore, the efficiency of the converter is eventually improved. Computer simulation and experimental results confirm the effectiveness of the proposed technique.

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“…In Reference 19, a hybrid MOSFET‐IGBT inverter structure is presented to achieve high efficiency performance. Reference 20 proposes an improved efficiency motor drive by parallel operation of IGBT‐MOSFET configuration. In Reference 21, a novel dual switching frequency modulation (DFM) has been proposed to improve switching performance of impedance network inverters.…”

Section: Introductionmentioning

confidence: 99%

Aquasi‐Z‐sourceinverter with a singlehigh‐frequency‐switch

Mohammadi

Mirzaee

Moghani

et al. 2021

Int Trans Electr Energ Syst

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SUMMARY In this paper, a high efficiency quasi‐Z‐source inverter with a single high‐frequency switch is proposed to achieve a high efficiency and more compact topology. The converter utilizes a single high‐speed GaN FET. In the proposed converter, four switches operate with low frequency sinusoidal pulse width modulation while the fifth switch short circuits the inverter switch‐legs with a high switching frequency and prepares the shoot‐through current path. The operation of the fifth switch in high switching frequency helps the inverter to operate with modulation index equal to unity. Also, the impedance network operates in high switching frequency, which makes it possible to decrease the components' size. The operation principles, efficiency, and switches' losses of the proposed converter are investigated analytically. A comparison between theoretical and simulation results is performed to validate the theoretical description of the inverter. To validate the well‐behavior of the inverter under various operation modes, the performance of the proposed converter is examined under different types of load. Moreover, loss breakdown and efficiency comparisons are utilized to show improvements with respect to the conventional inverter. The performance of the converter has been examined and validated through a 300 W prototype of the inverter.

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Efficiency improvement of converter for switched reluctance motor drives by mixed parallel operation of IGBT and MOSFET

Cited by 11 publications

References 6 publications

Electric Drives in Alternative Fuel Vehicles — Some New Definitions and Methodologies

Electric Drives in Alternative Fuel Vehicles — Some New Definitions and Methodologies

An Improved Asymmetric Half-Bridge Converter for Switched Reluctance Motor in Low-Speed Operation with Current Regulated Mode

Aquasi‐Z‐sourceinverter with a singlehigh‐frequency‐switch

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