Chaotic PWM spread spectrum scheme for conducted noise mitigation in DC-DC converters

Chatterjee, Shantanu; Garg, Ankit Kumar; Chatterjee, Krishanu; Kumar, Himesh

doi:10.1109/epetsg.2015.7510171

Cited by 8 publications

(5 citation statements)

References 5 publications

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“…In references [69] and [70], digital chaotic modulation technology was proposed to replace traditional filtering. Chaos‐based PWM technology was used to suppress EMI in power electronic converters, and a new chaotic modulation interface circuit was designed to increase engineering practicality.…”

Section: Popular Emi Reductions In Wbg Devicesmentioning

confidence: 99%

“…A new scheme was proposed in reference [72] that enabled the chaotic converter to quickly convert between two stable operating models to improve the EMC of the power supply, and it was verified by the peak‐voltage‐controlled boost converter. Chatterjee et al took the probability distribution of the switching mode as the variable of the controller to reduce the EMI and studied the optimization method based on probability entropy to reduce the conductive EMI in a DC/DC converter [69]. Li et al used a CSPWM based on reference [66].…”

Section: Popular Emi Reductions In Wbg Devicesmentioning

confidence: 99%

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A survey of conductive and radiated EMI reduction techniques in power electronics converters across wide‐bandgap devices

Tong

et al. 2023

IET Power Electronics

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Nowadays, wide‐bandgap (WBG) devices, primarily made from silicon carbide (SiC) and gallium nitride (GaN), are widely applied in power generation, transmission, and conversion. Moreover, the application of WBG devices has had a transformative impact in the field of energy conversion. Compared with Si counterparts, SiC and GaN can remarkably improve the power conversion system efficiency and power density while generating higher electromagnetic interference (EMI) emissions. There are many studies on WBG devices and their behaviour in power systems. However, methods of mitigating EMI/electromagnetic compatibility (EMC) still lack scientific guidance. This article reviews the characteristics of WBG devices, and the significant EMI problems are discussed. Then, the EMI types, EMI causes, and methods of EMI reduction are summarized, and the advantages and disadvantages of these methods are presented as well. Based on the reviewed studies, future research, and the conclusions of this article on EMI/EMC are discussed to help relevant researchers deepen their understanding of the new challenges of EMI brought by the applications of WBG devices, which are useful in engineering.

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Section: Popular Emi Reductions In Wbg Devicesmentioning

confidence: 99%

Section: Popular Emi Reductions In Wbg Devicesmentioning

confidence: 99%

A survey of conductive and radiated EMI reduction techniques in power electronics converters across wide‐bandgap devices

Tong

et al. 2023

IET Power Electronics

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“…Prototype of Luo converter is shown in Figure8 and complete hardware setup is shown in Figure 9. For generation of periodic and chaotic PWM pulses [19], programming is done in Xilinx ISE design suite 14.7 software and is interfaced with Xilinx Spartan 3E XC3S500E FPGA board. The oscillator frequency of this FPGA board is 50MHz and can be down scale for desired frequency.…”

Section: Process Of Generating Cpwmmentioning

confidence: 99%

Conducted Electro Magnetic Interference Spectral Peak Mitigation in Luo Converter Implementation Using FPGA Based Chaotic PWM Technique

Natarajan¹,

Padmanaban²,

Babu³

2018

Preprint

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Chaotic switching is a newly evolve randomization method which can suppress conducted electromagnetic interference generated within the DC-DC converter. It can suppress the spectral peaks present in the frequency band effectively by spread spectrum technique and can spread it over the wide range of frequency band implying EMI suppression. In this paper, a chaotic PWM technique based on RCFMFD scheme is generated through Field programmable gate array (FPGA) for suppressing the conducted electromagnetic interference (EMI) generated within the Luo converter. A hardware prototype of Luo converter was developed in order to analyze EMI reduction through FFT analysis by comparing both traditional periodic PWM switching and chaotic PWM switching. The results obtained from the hardware setup shows significant reduction of EMI with Chaotic switching as compared to traditional PWM switching for both boost and buck operation of Luo converter.

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“…In the subject matter literature, some papers emphasize the necessity for assurance of reliable operation of complex energy systems and the need for EMC assurance [2][3][4][5][6][7][8]. Furthermore, some papers highlight how approaches concerning deterministic modulation (DetM) and random modulation (RanM), based on the parameters' control of fundamental switching frequency ( f sw ) and duty cycle (d), may contribute to achieving EMC requirements [9][10][11][12][13][14][15][16][17][18][19][20]. Indeed, the RanM has been widely used since the 1980s [21].…”

Section: Introductionmentioning

confidence: 99%

Aggregated Conducted Electromagnetic Interference Generated by DC/DC Converters with Deterministic and Random Modulation

et al. 2020

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The assessment of electromagnetic compatibility (EMC) is important for both technical and legal reasons. This manuscript addresses specific issues that should be taken into account for proper EMC assessment of energy systems that use power electronic interfaces. The standardized EMC measuring techniques have been used in a laboratory setup consisting in two identical DC/DC converters with deterministic and random modulations. Measuring difficulties caused by the low frequency envelopes, resulting from frequency beating accompanying aggregation of harmonic components of similar frequencies, were indicated as a phenomenon that might lead to significant problems during the EMC assessment using currently binding standards. The experimental results describing deterministic and random modulated converters might be useful for practitioners implementing power interfaces in microgrids and power systems as well as for researchers involved in EMC assurance of power systems consisting in multiple power electronic interfaces.

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Chaotic PWM spread spectrum scheme for conducted noise mitigation in DC-DC converters

Cited by 8 publications

References 5 publications

A survey of conductive and radiated EMI reduction techniques in power electronics converters across wide‐bandgap devices

A survey of conductive and radiated EMI reduction techniques in power electronics converters across wide‐bandgap devices

Conducted Electro Magnetic Interference Spectral Peak Mitigation in Luo Converter Implementation Using FPGA Based Chaotic PWM Technique

Aggregated Conducted Electromagnetic Interference Generated by DC/DC Converters with Deterministic and Random Modulation

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