Volume minimization of the main DM/CM EMI filter stage of a bidirectional three-phase three-level PWM rectifier system

Boillat, David O.; Kolar, Johann W.; Mühlethaler, J.

doi:10.1109/ecce.2013.6646954

Cited by 36 publications

(22 citation statements)

References 15 publications

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“…Accordingly, the inductor voltage UL equals the whole DM voltage generated by the converter, while the generated CM voltage fully applies to the EMI filter. Note that this assumption is usually met with good accuracy for optimized filters [23].…”

Section: -80 Khzmentioning

confidence: 98%

Optimal inductor design for 3-phase voltage-source PWM converters considering different magnetic materials and a wide switching frequency range

Burkart

Uemura

Kolar

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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In this paper, an optimization regarding volume, efficiency and costs of AC boost inductors in 3-phase PWM converters based on detailed multi-domain models is presented. The optimization is performed for a wide switching frequency range of 5-80kHz and a wide current ripple range of 5-100 %, considering ferrite, amorphous and powder core materials in combination with round, Iitz, foil and flat wire windings. The shown analysis and optimization identifies the best core mate riaVwinding type combinations for both thermally and efficiency constrained inductor designs. Furthermore, the investigations reveal that simplified scaling assumptions, e.g. a proportional relationship between the inductor volume and the inverse of the frequency or the stored energy, are only accurate in special cases.

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Section: -80 Khzmentioning

confidence: 98%

Optimal inductor design for 3-phase voltage-source PWM converters considering different magnetic materials and a wide switching frequency range

Burkart

Uemura

Kolar

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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“…10(b), 10(d) and 10(f). This implies that CMV is not constant throughout a PWM period, but it varies from 1 3 V DC to 5 9 V DC (odd cases) and from 2 3 V DC to 4 9 V DC (even cases) at every transition from an active to an inactive vector. Nevertheless, these variations are smaller than those typical of traditional solutions.…”

Section: Vectorsmentioning

confidence: 99%

“…The modulation adopted for the control of the inverter is a novel Space Vector (SV) strategy, specifically developed in conjunction with the H8 architecture, with the aim to achieve an almost constant CMV (as previously discussed, ± 2 9 V DC variations are unavoidable) and performing single leg commutations. In the following, this strategy will be addressed as Constant Common-Mode Voltage Space Vector (CCMV-SV), however it can only be applied for modulation indexes lower than 0.5 ( Fig.…”

Section: Vectorsmentioning

confidence: 99%

“…During each PWM period the time dedicated to inactive vectors is equally distributed between both V 7 and V 8 ; sequences exhibit a central symmetry and active states are put in place according to the minimum difference (in terms of switching configuration) they have with respect to the previous or subsequent inactive state. Similarly to the CCMV-SV, V CM becomes equal to 1 3 V DC when odd vectors are performed and 2 3 V DC when even vectors are. In each PWM period both odd and even vectors are exploited, so NS-SV exhibits a CMV varying between those two values at the PWM carrier frequency.…”

Section: B Modulation Index Greater Than 05: Ns-sv Modulationmentioning

confidence: 99%

“…The existence of several common mode impedance paths between the converter and the motor/drive frame allows leakage currents to flow at every CMV variation, so that high pulse-width modulation frequencies produce high common-mode leakage currents [1]. In motor drive applications, this may lead to motor bearing failures, EMI noise that causes inverter drive trip, or interference with other electronic equipment in the vicinity [2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

H8 Inverter for Common-Mode Voltage Reduction in Electric Drives

Concari

Barater

Buticchi

et al. 2016

IEEE Trans. on Ind. Applicat.

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This paper presents a modified two-level three-phase inverter for the reduction of the leakage current. With respect to a traditional two-level inverter, the proposed solution reduces the common-mode voltage, both in amplitude and frequency. Between the DC source and the traditional three-phase bridge, two active DC-decoupling devices and a voltage-clamping network have been added. A dedicated control strategy was developed adopting a modified Space Vector PWM modulation, oriented to the reduction of the common-mode voltage. Simulations showing the good performance of the solution are presented. A preliminary prototype was developed and experimental results are presented.

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A hysteresis space vector modulation for interleaved Vienna rectifier fed 3‐level neutral point clamped inverter system

Palanisamy

Vijayakumar

Thentral

et al. 2021

Int Trans Electr Energ Syst

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Summary In this article, a hysteresis space vector modulation (HSVM) is developed for interleaved Vienna rectifier (IVR) fed 3‐level neutral point clamped inverter (NPCI) system. The minimized current ripple and improved output voltage is obtained using HSVM control technique. The output of IVR is fed with 3‐level NPCI, which provides continuous input source, balanced capacitor voltage and minimized common mode voltage. Hysteresis circular region‐based control method is implemented to minimize the current ripple in the rectifier side. The multicarrier sinusoidal pulse width modulation technique is used to control 3‐level NPC inverter, which provides reduced total harmonic distortion (THD), balanced capacitor voltage and improved output voltage. This proposed system outputs are verified using MATLAB simulink and FPGA processor for simulation and experimental results, respectively.

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Volume minimization of the main DM/CM EMI filter stage of a bidirectional three-phase three-level PWM rectifier system

Cited by 36 publications

References 15 publications

Optimal inductor design for 3-phase voltage-source PWM converters considering different magnetic materials and a wide switching frequency range

Optimal inductor design for 3-phase voltage-source PWM converters considering different magnetic materials and a wide switching frequency range

H8 Inverter for Common-Mode Voltage Reduction in Electric Drives

A hysteresis space vector modulation for interleaved Vienna rectifier fed 3‐level neutral point clamped inverter system

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