Minimization of wiring inductance in high power IGBT inverter

Lounis, Z.; Rasoanarivo, Ignace; Davat, Bernard

doi:10.1109/61.852983

Cited by 34 publications

(9 citation statements)

References 6 publications

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“…The paper [7] did some research on most important parasitic parameters of capacitor tank in converter and the effect on switching transient process. In fact, the value of stray parameters exiting in the DC-link busbar is a little larger than the parasitic parameters of capacitor [8].…”

Section: Introductionmentioning

confidence: 98%

The Impact of Layer Number on Stray Inductance of DC-link Busbar in Power Converters

Zhu¹,

Zhang²,

Ge³

2013

TOEEJ

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In high power converter design, low-inductance busbar connecting DC capacitors and power devices is the main concern to improve the quality of the whole power electronics system. This paper analyzes the impact of layernumber on the stray inductance of busbar taking a subway traction converter as example. The method of partial element equivalent circuit and the Q3D software are used to extract the stray inductance. The simulation and experimental results show that the stray inductance of three-layer busbar is lower than two-layer busbar with other same conditions.

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Section: Introductionmentioning

confidence: 98%

The Impact of Layer Number on Stray Inductance of DC-link Busbar in Power Converters

Zhu¹,

Zhang²,

Ge³

2013

TOEEJ

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“…This is because high switching frequencies imply high V = L.di/dt switching transitions, and this must be factored into the device voltage headroom to ensure circuit reliability. Parasitic inductances may be minimized through careful bus bar design [4], [5] and the use of low ESL DC bus capacitors but can never be entirely eliminated. The simple engineering solutions of employing devices with a higher voltage rating and/or of deliberately slowing down the switching process to limit di/dt both tend to increase losses.…”

Section: Introductionmentioning

confidence: 99%

Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers

Rogers

Lakshmanan

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper presents a low inductance snubber design incorporating a damped DC bus capacitance and multiple RC+RCD cells arranged in two arrays. The design suppresses transient over-voltage peaks seen at the switching transitions in hard-switched, high-frequency switch-mode circuits which are created by an unavoidable interaction between circuit parasitic inductances, IGBT turn-off current slopes and free-wheeling diode reverse recovery currents. The array arrangement allows the use of small surface-mount, ultrafast diodes by enforcing current sharing between many devices. An industrial application example is presented where the snubber design enables an increase in DC bus voltage from 200V to 400V when using 600V Si IGBTs operated at a switching frequency of 75 kHz. Simulation results are presented and compared to experimental measurements to illustrate the operating principle and effectiveness of the array design.Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers S 978-1-4799-6735-3/15/$31.00 ©2015 IEEE

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“…Therefore, in order to achieve high efficiency and reduced size, it is necessary to decrease the stray inductance of current loops or use the snubber circuit to suppress the surge voltage. For this reason, LBBs, which have low stray inductance owing to the laminated structure of conductors and isolators, has been applied in an inverter [7][8][9][10]. However, the LBBs for a matrix converter cannot be easily designed in the same way as an inverter because of bidirectional switching devices.…”

Section: Introductionmentioning

confidence: 99%

Surge voltage suppression methods for three-phase to single-phase matrix converter

Kadoshima

Anne

Koiwa

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper discusses surge voltage suppression methods in order to design a large capacity three-phase to singlephase matrix converter which is used in AC-DC converters. In order to reduce the surge voltage, the design criteria based on the flow chart of a laminated bus bar (LBB) for the three-phase to single-phase matrix converter is clarified to achieve the lowest stray inductance. As a result, the maximum stray inductance of the LBB for 200-V, 50-kW is achieved to 59 nH in simulation and 58.3 nH in experiment. Besides, when the surge voltage exceeds the tolerance, a snubber capacitor is used in order to limit the surge voltage. In this paper, the design method of the snubber capacitor is also proposed. Concretely, the relationship among snubber capacitance, surge voltage and turn-on loss is derived. As the result, it is confirmed that the surge voltage becomes 231 V when the output current is 310 A by experiment. Thus, the design method of snubber capacitor to suppress the surge voltage is validated.

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Minimization of wiring inductance in high power IGBT inverter

Cited by 34 publications

References 6 publications

The Impact of Layer Number on Stray Inductance of DC-link Busbar in Power Converters

The Impact of Layer Number on Stray Inductance of DC-link Busbar in Power Converters

Low-inductance snubber arrays for high-power, high-bandwidth switch-mode amplifiers

Surge voltage suppression methods for three-phase to single-phase matrix converter

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