Automatic EMI Filter Design for Power Electronic Converters Oriented to High Power Density

Giglia, G.; Ala, Guido; Piazza, Maria Carmela Di; Giaconia, C.; Luna, Massimiliano; Vitale, G.; Zanchetta, Pericle

doi:10.3390/electronics7010009

Cited by 42 publications

(50 citation statements)

References 31 publications

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“…The CE causes significant electrical damages and communication malfunctions in many systems [17][18][19][20][21][22][23][24]. To reduce the CE, there are several methods [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] with different signal attenuation patterns. Each electrical system has different CE characteristics, so the CE attenuation method must be appropriately chosen for each system.…”

Section: Literature Reviewmentioning

confidence: 99%

“…it was based on the analysis of conducted EMI, which had been induced by a DC-DC converter. Kumar et al [28] proposed the use of an inductor, choke, and pi filters to reduce the CM and DM noise of conducted EMI. The inductor and choke filter removed the CM noise, and the pi filter removed the DM noise.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The inductor and choke filter removed the CM noise, and the pi filter removed the DM noise. In the research of Giglia et al [28], the automatic EMI filter design for the power converters was presented. Two study cases (induction motor load and resistive load) were investigated for minimum volume and weight EMI filter.…”

Section: Literature Reviewmentioning

confidence: 99%

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The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

Jettanasen

Ngaopitakkul

2019

Sustainability

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Road lighting systems require a significant amount of electric energy. To compensate for the utilized energy, the concept of a nanogrid road lighting system is presented. A solar panel is installed on the top of a lighting pole to generate electric power. In this research, a photovoltaic simulator (PV simulator), which is used to simulate solar behavior such as current, voltage, and power based on temperature and solar irradiance levels, is employed to replace a solar panel. In the nanogrid system, grid-connected and stand-alone micro-inverters are employed to convert the electric power. The inverters comprise switching devices that can generate electromagnetic interference (EMI) when operating, which is harmful to the grid system and the electrical equipment. In general, EMI has been studied and reduced in electrical appliances, which only receive electric power. However, for the nanogrid system, which supplies electricity to the grid system, there is less study on the EMI topic because the usage is still not widespread. In the future, the nanogrid system will be widely used delivering high power directly into the electrical grid system. Therefore, the study and attenuation of EMI in the nanogrid system are very promising. Conducted emission (CE) is one form of EMI that flows through a cable connecting several appliances in the frequency range of 150 kHz to 30 MHz. CE of grid-connected and stand-alone micro-inverters have high levels in the low-frequency range between 150 kHz–5 MHz and then decreases steadily. CE attenuation is important for this inverter in a solar power system. This research studies the effect of CE mitigation on the nanogrid system. The result is compared with the Comité International Spécial des Perturbations Radio (CISPR) 14-1 standard. Finally, the passive EMI filter can reduce CE and meets the CISPR 14-1 standard.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

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The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

Jettanasen

Ngaopitakkul

2019

Sustainability

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“…As it can be seen, these three parameters present a strong dependence on the frequency thus providing a wide dimming range with a limited excursion of the control frequency. This is an interesting feature because it reduces the size of the electromagnetic interference (EMI) filter that will be required in a practical implementation [24].…”

Section: Of 22mentioning

confidence: 99%

Closed Loop Control of a Series Class-E Voltage-Clamped Resonant Converter for LED Supply with Dimming Capability

et al. 2019

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In this work, a new closed-loop control system is applied to a class-E resonant DC-DC converter with voltage clamp used for light-emitting diode (LED) supply. The proposed power topology was first described by Ribas et al. in a recent work. In the present paper, the LED current is sensed and used to implement a feedback control loop instead of the simplified feedforward scheme used in this previous reference. To design the control, a novel, simplified small-signal model is presented. This model is used to analyze the converter behavior as a function of the output power. The proposed approximation is significantly simpler than the multifrequency averaging technique normally used to analyze resonant converters. The feedback control loop is designed to reduce the LED low frequency current ripple while providing dimming control. Both the model and the control are verified by simulation and laboratory experimentation and the results obtained are in good accordance with the expected values.

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“…As a result, conducted emissions (CE) with higher intensity are generated in the measurement range of the electromagnetic compatibility (EMC) standards. In this way, an additional effort is necessary in the design of the electromagnetic interference (EMI) filter included in the input of the power converters in order to comply with the standards [13]. A careful dimensioning of the EMI filter is also essential to ensure the adequate power factor in all operating range and to achieve a high power quality without penalizing the efficiency, volume and cost of the system.…”

Section: Introductionmentioning

confidence: 99%

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

et al. 2018

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This paper describes the design of an electromagnetic interference (EMI) filter for the high-frequency link matrix converter (HFLMC). The proposed method aims to systematize the design process for pre-compliance with CISPR 11 Class B standard in the frequency range 150 kHz to 30 MHz. This approach can be extended to other current source converters which allows time-savings during the project of the filter. Conducted emissions are estimated through extended simulation and take into account the effect of the measurement apparatus. Differential-mode (DM) and common-mode (CM) filtering stages are projected separately and then integrated in a synergistic way in a single PCB to reduce volume and weight. A prototype of the filter was constructed and tested in the laboratory. Experimental results with the characterization of the insertion losses following the CISPR 17 standard are provided. The attenuation capability of the filter was demonstrated in the final part of the paper.

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Automatic EMI Filter Design for Power Electronic Converters Oriented to High Power Density

Cited by 42 publications

References 31 publications

The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

Closed Loop Control of a Series Class-E Voltage-Clamped Resonant Converter for LED Supply with Dimming Capability

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

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