EMI mitigation in closed loop boost converter using soft switching combined with chaotic mapping
01 Jan 2014-pp 1-6
TL;DR: In this paper, chaotic mapping is incorporated to convert the periodic saw tooth carrier into chaotic one to suppress the primary sources of EMI such as di/dt and dv/dt due to rapid switching.
Abstract: The degrading performance of high frequency DC-DC converters due to Electro Magnetic Interference (EMI) must be encountered utterly. Use of chaotic PWM is an effective way to reduce the EMI, by which the entire energy can be completely spread out uniformly over the frequency band. Since, the generation of chaotic carrier in practical cases is comparatively difficult, here in this work, chaotic mapping is incorporated to convert the periodic saw tooth carrier into chaotic one. The primary sources of EMI such as di/dt and dv/dt due to rapid switching were controlled significantly by the soft switching technique which is combined with chaotic PWM to suppress electromagnetic interference. This combined approach also results in reduced switching losses and hence ameliorates the efficiency of the boost converter.
Citations
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TL;DR: In this paper, a quasi-resonant and multiresonant, resonant transition, and resonant power converters (RPCs) are proposed to charge the battery of an electric vehicle.
Abstract: Finite commutation times are associated with the concurrent occurrence of both voltageacross and current-through semiconductor switches, leading to switching power losses. To alleviate them, soft-switching techniques have been developed. Soft-switching converters can be classified into quasi-resonant and multiresonant, resonant-transition, and resonant power converters (RPCs). This article focuses on RPCs, due to their high power density and efficiency. Specifically, RPC topologies with multiple elements are described, and their input-output relationships and efficiency are illustrated. The merits and limitations of RPCs are discussed and compared. An RPC intended to charge the battery of an electric vehicle (EV) is presented, and experimental results are discussed.
63 citations
Cites background from "EMI mitigation in closed loop boost..."
...Several papers have dealt with the effects of hard switching [2]–[4] as well as with circuitry arrangements able to modify the current and voltage of the switches during the commutations with the end of eliminating or at least mitigating hard switching and its effects [5], [6]....
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TL;DR: This review article is a one stop solution for new researchers and practitioners to understand about the effects of EMI and its suppression techniques in detail.
Abstract: One of the most challenging and interesting field in power electronics is the ability to mitigate the Electromagnetic Interference (EMI). A natural source of EMI includes the atmospheric discharge/charge phenomena and extra-terrestrial radiation. Man-made source of EMI are line radiation, auto ignition, radio frequency interference and power lines. Suppression of EMI and enhancing the Electro Magnetic Compatibility (EMC) has become essential in high frequency power electronic converters. This review article is a one stop solution for new researchers and practitioners to understand about the effects of EMI and its suppression techniques in detail.
19 citations
Cites methods from "EMI mitigation in closed loop boost..."
...[51] incorporated chaotic mapping method to convert the periodic sawtooth carrier into chaotic....
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01 Sep 2016
TL;DR: Simulation and experimental results both verify the correctness of the proposed spectrum calculation method based on Fourier series to precisely calculate the spectrum of PWM waveforms under CPWM.
Abstract: In this paper, an analytical calculation method of chaotic spectrum for DC-DC converters under CPWM is firstly proposed based on Fourier series. The proposed method can be employed to precisely calculate the spectrum of PWM waveforms under CPWM. Simulation and experimental results both verify the correctness of the proposed spectrum calculation method.
10 citations
07 Apr 2016
TL;DR: In this paper, the chaotic soft switching technique based on Field Programmable Gate Array (FPGA) technology is proposed to provide a significant EMI noise attenuation in solar fed DC-DC boost converter.
Abstract: Boost converter is most widely used DC-DC converter for renewable energy applications. The operation of high frequency switching DC-DC converters causes Electro Magnetic Interference (EMI), which is degrading the normal operation of the converter and other adjacent systems. Therefore power converters must comply with the Electro Magnetic Compatibility standards in order to ensure the proper operation of converters and not to pollute the nearby systems. This paper discusses an integrated conducted EMI suppression approach, the chaotic soft switching technique based on Field Programmable Gate Array (FPGA) technology to provide a significant EMI noise attenuation in solar fed DC-DC boost converter. The solar fed DCDC boost converter is designed, simulated and implemented in hardware. The results obtained and the FFT analysis are strongly substantiate the proposed approach. The obtained results also compared with the traditional DC-DC boost converter results. The proposed system may replace the bulky passive EMI filters wherein which the space is the major concern.
9 citations
TL;DR: A chaotic pulse width modulation technique based on randomized carrier frequency modulation with fixed duty ratio is generated through field programable gate array for suppressing the conducted electromagnetic interference generated within the Luo-converter.
Abstract: Chaotic switching is a newly evolve randomization method which suppress the conducted electromagnetic interference generated within the DC-DC converter. It can also suppress the spectral pe...
7 citations
Cites methods from "EMI mitigation in closed loop boost..."
...For suppressing this EMI, various methods have employed like EMI filters, Electromagnetic shielding and soft switching by various researchers [2]....
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References
More filters
TL;DR: In this paper, two planar integrated EMI filter structures that reduce the filter volume and that are based on standard printed circuit board (PCB) process technology are presented, which results in a volume reduction of 24% compared to the discrete solution.
Abstract: Two new planar integrated electromagnetic interference (EMI) filter structures that reduce the filter volume and that are based on standard printed circuit board (PCB) process technology are presented in this paper. First, a passive integrated EMI filter is presented, which results in a volume reduction of 24% compared to the discrete solution. However, this filter requires a planar ferrite core for the common-mode inductor. In order to eliminate the ferrite core and reduce the filter volume further (-40% versus discrete filter), a passive integrated structure is combined with an active EMI filtering circuit. The transfer function, the volume, and the losses of the discrete and the two integrated filters, which are designed for a 600 W power-factor-corrected converter, are compared.
131 citations
TL;DR: In this paper, the authors provide an overview on the state of the art of traditional EMI suppression technologies, and introduce the use of chaos theory and chaos control to reduce EMI, as well as to motivate more efforts in theoretical research and engineering practice.
Abstract: Since James Clerk Maxwell established the electromagnetic field theory in 1865, multifarious electrical and electronic products have been invented, designed, produced, and widely deployed, such as wireless communication devices, electrical machines and motors. This has profoundly changed our world and our lives. Now we cannot live without electrical products anymore and, thus, we are surrounded with electromagnetic fields generated. On the other side, especially in the past few decades, the rapid development and wide deployment of electrical products have caused lots of troubles, among which the most prominent one is electromagnetic interference (EMI), which may impact other devices' performance and harm human beings' health. Therefore, fighting EMI has become a stringent, difficult problem faced by engineers and scientists. The sources of EMI include natural sources, like atmospheric charge/discharge phenomena and extraterrestrial radiation, and man-made sources, like power lines, auto ignition, radio frequency interference, and radiation hazards, to name just a few. As important components, direct current (DC-DC) converters are embedded and employed in various electrical devices, thus forming main sources of EMI. Some measures, such as filters and electromagnetic shielding, have been taken to suppress EMI, but these methods have various drawbacks with respect to cost, volume, weight, and efficiency. Therefore, new theories and methodologies are desired to cope with the EMI problem, and chaos theory is a candidate due to the continuous spectrum feature of chaos. This paper aims to provide an overview on the state of the art of traditional EMI suppression technologies, and to introduce the use of chaos theory and chaos control to reduce EMI, as well as to motivate more efforts in theoretical research and engineering practice.
93 citations
TL;DR: In this paper, an analogue chaotic PWM carrier is designed to be embedded in a chaotic pulse width modulation (PWM) boost converter, and to be used for reducing electromagnetic interference (EMI) in dc-dc converters.
Abstract: An analogue chaotic carrier is designed to be embedded in a chaotic pulse width modulation (PWM) boost converter, and to be used for reducing electromagnetic interference (EMI) in dc-dc converters. The analogue chaotic PWM has its advantages over the digital one in its low costs and easy-to-design, making it suitable for high-frequency operation and situations when design flexibility and low cost are required. Finally, simulations and experiments are conducted to illustrate the effectiveness of the proposed analogue chaotic PWM in reducing EMI.
70 citations
"EMI mitigation in closed loop boost..." refers background in this paper
...The disturbance may interrupt, obstruct, or even degrade [2]-[4] or limit the effective performance of the circuit....
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TL;DR: The Prony method is suggested for chaotic spectral estimation of dc-dc converters, and numerical simulations show its advantages over the traditional FFT.
Abstract: When dc-dc converters operate in chaotic modes, they can generate spread spectra, which are useful for reducing the electromagnetic interference (EMI). Conventionally, the Fast Fourier Transform (FFT) is used to analyze the spectra. However, it is not applicable to the inner-harmonics, the nonintegral multiples of the fundamental frequency, which is a prominent feature of chaotic signals. In this brief, the Prony method is suggested for chaotic spectral estimation of dc-dc converters. Numerical simulations show its advantages over the traditional FFT
30 citations
TL;DR: A novel chaotic peak current-mode boost converter is proposed that can effectively reduce electromagnetic interference and suppress ripples of the converter's output, resulting in a better design for power supplies.
Abstract: A novel chaotic peak current-mode boost converter is proposed. By deriving its corresponding current mapping function, a thorough analysis of its chaotic behavior is carried out. As demonstrated both in simulations and experiments, the proposed design can effectively reduce electromagnetic interference and suppress ripples of the converter's output, resulting in a better design for power supplies.
23 citations
"EMI mitigation in closed loop boost..." refers methods in this paper
...The advantage of using chaos theory over EMI filters is the omission of additional circuits like filters or shielding overcoming the cost, weight, volume considerations [5]-[7]....
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