Modulation technique to reduce EMI in power multiconverters

Mon, J.; Gago, J.; González, David; Balcells, J.; Fernández, R.; Gil, Ignacio; Bogónez, P.

doi:10.1587/elex.6.511

Cited by 9 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notice that each switching pattern has a period equal to the period of the modulation profile, T m , and contains L switching cycles (1). There are several possibilities of combination interleaving and spread spectrum modulation in multiconverter arrangement [4].…”

Section: Vdfm Theory and Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of nonidealities in switching frequency modulation techniques: Application to coupled interleaved multicellular parallel converters

Mon

González

Ferrer-Arnau

et al. 2013

2013 15th European Conference on Power Electronics and Applications (EPE)

View full text Add to dashboard Cite

This paper explores the application of the Variable Delay Frequency Modulation (VDFM) to an Interleaved Multicellular Parallel converter. VDFM is a modulation technique specially intended to reduce conducted EMI generated by parallel converters. This technique combines interleaving and frequency modulation in such a way that provides the best attenuation. On the other hand, Coupled Interleaved Multicelular Parallel Converters (CIMPC) needs a perfect current sharing among phases. In this paper we consider the effect of VDFM nonidealities on the EMI attenuation in order to consider the application of this technique to CIMPC.

show abstract

Section: Vdfm Theory and Resultsmentioning

confidence: 99%

“…Recently, the Variable Delay with switching Frequency Modulation (VDFM) has been presented [1][2][3]. This technique, which combines interleaving with frequency modulation, is specially intended for converters in parallel topology and shows good results in terms of conducted disturbances attenuation [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of nonidealities in switching frequency modulation techniques: Application to coupled interleaved multicellular parallel converters

Mon

González

Ferrer-Arnau

et al. 2013

2013 15th European Conference on Power Electronics and Applications (EPE)

View full text Add to dashboard Cite

show abstract

“…This method is known as interleaving and consists of introducing a given shift delay among the switching patterns of the converters, resulting in a harmonics cancellation method (Zumel, Garcia, Cobos, and Uceda 2004;Shin, Park, Chang, and Choi 2005). However, it is possible to combine the benefits of interleaving and SFM techniques using the switching frequency modulation with variable delay (VDFM) method in order to spread the energy of interference harmonics that have not been cancelled by the interleaving technique (Mon et al 2009). …”

Section: Please Scroll Down For Articlementioning

confidence: 99%

EMI reduction by means of switching frequency modulation with variable delay in power supplies

Mon

Gago

González

et al. 2012

International Journal of Electronics

Self Cite

View full text Add to dashboard Cite

In this article, a new model to predict the amplitude reduction of the interference harmonics in power supplies with parallel topology is presented when the switching frequency modulation with variable delay (VDFM) technique is applied. The VDFM method consists of combining the interleaving and switching frequency modulation (SFM) techniques. The new model presented has been evaluated in a multichannel buck converter, operating with different numbers of converters when a triangular modulation profile is used. Theoretical study and experimental results show the influence of the number of converters and the modulation parameters with regard to electromagnetic interference reduction. From the new model presented, it is possible to predict the value of modulation parameters and the numbers of converters in order to satisfy the required attenuation regarding the electromagnetic compatibility directives, when a triangular modulation profile is used.

show abstract

“…Some voltage multiplier techniques were also introduced for a boost converter in order to increase the static gain with reduced switch voltage [4]. However, in order to further reduce the voltage stress of active switches as well as electromagnetic interference (EMI) [5,6], in this paper, a novel single-stage three-phase high step-up DC/DC converter topology is proposed and experimentally tested by a 100 V/110 W circuit prototype in 24 V-battery-powered micro DC-UPS to verify the feasibility.…”

Section: Introductionmentioning

confidence: 99%

A battery-powered single-stage three-phase high step-up converter topology for micro DC-UPS

Lai

2014

IEICE Electron. Express

View full text Add to dashboard Cite

A conventional battery-powered AC uninterruptible power supply (AC-UPS) that steps up low DC voltage to high DC voltage and cascades with the high frequency inverter is complicated in control and of low efficiency due to two-stage power conversion. This paper presents a threephase high step-up converter with a single-stage DC/DC power conversion suitable for micro DC-UPS applications. In this paper, the circuit operating theory and steady-state analysis of the proposed topology are first addressed then a 100 V/110 W circuit prototype is designed, built and applied in 24 Vbattery-powered micro DC-UPS for a 19 V/85 W laptop PC appliance. The feasibility and effectiveness of the proposed converter topology are confirmed with experimental results. The maximum conversion efficiency of the proposed converter is about 93.5%, and the overall efficiency of the designed system is high due to the losses in the power conversion process when reduced. Compared with the conventional AC-UPS, the proposed micro DC-UPS achieves potentially about 3% maximum energy savings.

show abstract

Modulation technique to reduce EMI in power multiconverters

Cited by 9 publications

References 6 publications

Effects of nonidealities in switching frequency modulation techniques: Application to coupled interleaved multicellular parallel converters

Effects of nonidealities in switching frequency modulation techniques: Application to coupled interleaved multicellular parallel converters

EMI reduction by means of switching frequency modulation with variable delay in power supplies

A battery-powered single-stage three-phase high step-up converter topology for micro DC-UPS

Contact Info

Product

Resources

About