EMI Filter Design for a 1 MHz, 10 kW Three-Phase/Level PWM Rectifier

Hartmann, M.; Ertl, H.; Kolar, Johann W.

doi:10.1109/tpel.2010.2070520

Cited by 128 publications

(55 citation statements)

References 23 publications

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“…Figure 3 shows the conducted emission evaluation system. Capacitors are added between the switching devices and a FG, and the output voltage midpoint and the FG in order to model the stray capacitances of a general inverter (14) . In this paper, a modeled Line Impedance Stabilizing Network (LISN) and a spectrum analyzer are used in order to estimate the conducted emission by the simulation (19) .…”

Section: Volume Of Emc Filtermentioning

confidence: 99%

“…Therefore, the volume of the cooling system must be considered for minimizing the EMC filter under a high frequency switching operation. Although the EMC filter design method are reported at the constant carrier frequency (13) (14) , it seems that the relationship between the power converter volume and the carrier frequency has not been discussed concretely through the experiments in past works. This paper discusses the relationship between the carrier frequency and the total volume of the inverter system based on simulation and experiments using GaN-FET.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Verification of EMC Filter Used for PWM Inverter with Wide Band-Gap Devices

2015

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This paper discusses the volume of an electromagnetic compatibility (EMC) filter and a cooling system that are used for a pulse width modulation (PWM) inverter with wide band-gap devices. First, the volume of reactors that are used in EMC filters such as common mode choke coils and differential mode choke coils is theoretically estimated. Then, the relationship between the carrier frequency of the PWM inverter and the total volume of filter reactors is clarified via simulation. Moreover, the relationship between the carrier frequency and the volume of the cooling system is calculated on the basis of on experimental results. The total volume of the inverter system that contains the filter reactors and cooling systems is reduced by 54% at a carrier frequency of 300 kHz using a two-stage filter, as compared to the case of a carrier frequency of 150 kHz with a single-stage filter. In addition, an induction motor is driven by a prototype GaN-FET inverter system having a carrier frequency of 300-kHz. As a result, the conducted emission is suppressed below the limit prescribed by CISPR-11 Group 1. Therefore, the proposed design method for EMC filters is validated experimentally. Furthermore, the power loss of the EMC filter is less than 2% as compared with the total loss of the GaN-FET inverter system.

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Section: Volume Of Emc Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Verification of EMC Filter Used for PWM Inverter with Wide Band-Gap Devices

2015

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“…And the functional block diagram for the proposed combined technique is shown in Figure 3. The elaborated circuit diagram of the proposed methodology is shown in Figure 4 which is comprised of both EMI filter [11][12][13][14][15] and chaotic switching method, where Inductor , Capacitor , Diode , and Switch belong to the power circuit and and are the filter parameters. The LISN is stabilizing the impedance of the source and the circuit for the accurate measurement of conducted EMI generated in the boost converter.…”

Section: Dc-dc Power Convertermentioning

confidence: 99%

An FPGA Chaos-Based PWM Technique Combined with Simple Passive Filter for Effective EMI Spectral Peak Reduction in DC-DC Converter

Natarajan

Rajasekar

2014

Advances in Power Electronics

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A new and simple but effective electromagnetic interference suppression technique based on field programmable logic array (FPGA) technology to provide a significant EMI noise attenuation in DC-DC converters is discussed. The voltage controlled boost converter for EMI reduction is analyzed using FFT under traditional PWM technique and chaotic mode operation. This technique aids the DC-DC converters to comply in specified EMI limits and replace conventional bulky passive filter with a simple passive filter. A prototype model has been tested and hardware results show significant reduction of EMI in chaotic mode operation of the boost converter.

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“…The analysis of the CM path on the line side of the converter enabled the development of the filter possessing the same compensating properties without the above mentioned drawbacks [20,21,45,46]. …”

Section: Compensator For Active Rectifiersmentioning

confidence: 99%

Compensation of Interference Sources Inside Power Electronic Interfaces

Smoleński

2012

Conducted Electromagnetic Interference (EMI) in Smart Grids

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The most suitable way, to eliminate simultaneously all side effects connected with the application of power electronic converters in Smart Grid systems, is the compensation of the interference sources inside of the power electronic interface. In such situation the compensation of the interference sources prevents both the spreading of the interference over extensive circuits and the uncontrolled aggregation of the interference generated by a group of converters, facilitating development of the compatible system. CM Compensator for InvertersThe CM voltage source cancellation in inverter-fed systems [25] can be done using active [54] as well as the passive CM voltage compensators proposed by 37,38]. Compensation in the active series filter is realized by the addition of the common mode voltage of the opposite polarity to each phase. It has been realized using the emitter follower (T 1 , T 2 ). The common mode voltage is detected on Y -connected capacitors (C det ) and added to the phase voltages by a common mode transformer, Fig. 5.1.The equivalent circuit for CM component is presented in Fig. 5.2. The series compensation is realized by addition of the compensating voltage U C by means of the CM adding transformer fed by the voltage-controlled voltage source.The original arrangement proposed by Ogasawara and Akagi for CM voltage, bearing voltage and bearing current elimination was designed using bipolar transistors for a 3 × 200 V, 60 Hz supply of a frequency converter. Each transistor of the emitter follower has to operate under full DC-link voltage conditions (282 V) [38].In the presented investigations the concept of the series active filter for a 3×400 V,

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EMI Filter Design for a 1 MHz, 10 kW Three-Phase/Level PWM Rectifier

Cited by 128 publications

References 23 publications

Experimental Verification of EMC Filter Used for PWM Inverter with Wide Band-Gap Devices

Experimental Verification of EMC Filter Used for PWM Inverter with Wide Band-Gap Devices

An FPGA Chaos-Based PWM Technique Combined with Simple Passive Filter for Effective EMI Spectral Peak Reduction in DC-DC Converter

Compensation of Interference Sources Inside Power Electronic Interfaces

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