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Power Factor Corrector with Bridgeless Flyback Converter for DC Loads Applications
Since power systems with a DC distribution method has many advantages, such as conversion efficiency increase of about 5–10%, cost reducing by about 15–20% and so on, the AC distribution power system will be replaced by a DC distribution one. This paper presents a DC load power system for a DC distr...
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Published in: | Energies (Basel) 2018-11, Vol.11 (11), p.3096 |
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description | Since power systems with a DC distribution method has many advantages, such as conversion efficiency increase of about 5–10%, cost reducing by about 15–20% and so on, the AC distribution power system will be replaced by a DC distribution one. This paper presents a DC load power system for a DC distribution application. The proposed power system includes two converters: DC/DC converter with battery source and power factor corrector (PFC) with a line source to increase the reliability of the power system when renewable energy or energy storage equipment are adopted. The proposed PFC adopts a bridgeless flyback converter to achieve power factor correction for supplying power to DC loads. When the bridgeless flyback converter is used to achieve PFC, it needs two transformers to process positive and negative half periods, respectively. In order to increase conversion efficiency, the flyback one can add two sets of the active clamp circuit to recover energies stored in leakage inductances of transformers in the converter. Therefore, the proposed bridgeless flyback converter can not only integrate two transformers into a single transformer, but also share a clamp capacitor to achieve energy recovery of leakage inductances and to operate switches with zero-voltage switching (ZVS) at the turn-on transition. With this approach, the proposed converter can increase conversion efficiency and decrease component counts, where it results in a higher conversion efficiency, lower cost, easier design and so on. Finally, a prototype with a universal input voltage source (AC 90–265 V) under output voltage of 48 V and maximum output power of 300 W has been implemented to verify the feasibility of the proposed bridgeless flyback converter. Furthermore, the proposed power system can be operated at different cases among load power PL, output power PDC1 of DC/DC converter and output power PDC2 of the proposed PFC for supplying power to DC loads. |
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This paper presents a DC load power system for a DC distribution application. The proposed power system includes two converters: DC/DC converter with battery source and power factor corrector (PFC) with a line source to increase the reliability of the power system when renewable energy or energy storage equipment are adopted. The proposed PFC adopts a bridgeless flyback converter to achieve power factor correction for supplying power to DC loads. When the bridgeless flyback converter is used to achieve PFC, it needs two transformers to process positive and negative half periods, respectively. In order to increase conversion efficiency, the flyback one can add two sets of the active clamp circuit to recover energies stored in leakage inductances of transformers in the converter. Therefore, the proposed bridgeless flyback converter can not only integrate two transformers into a single transformer, but also share a clamp capacitor to achieve energy recovery of leakage inductances and to operate switches with zero-voltage switching (ZVS) at the turn-on transition. With this approach, the proposed converter can increase conversion efficiency and decrease component counts, where it results in a higher conversion efficiency, lower cost, easier design and so on. Finally, a prototype with a universal input voltage source (AC 90–265 V) under output voltage of 48 V and maximum output power of 300 W has been implemented to verify the feasibility of the proposed bridgeless flyback converter. Furthermore, the proposed power system can be operated at different cases among load power PL, output power PDC1 of DC/DC converter and output power PDC2 of the proposed PFC for supplying power to DC loads.</description><identifier>ISSN: 1996-1073</identifier><identifier>EISSN: 1996-1073</identifier><identifier>DOI: 10.3390/en11113096</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>active clamp circuit ; bridgeless flyback converter ; Bridges ; Control algorithms ; Conversion ; DC distribution ; Efficiency ; Electric converters ; Electric potential ; Electronics ; Inductance ; International standards ; Light emitting diodes ; PFC ; Pollution ; Power factor ; Power supply ; Quality standards ; Voltage ; Waveforms ; ZVS</subject><ispartof>Energies (Basel), 2018-11, Vol.11 (11), p.3096</ispartof><rights>2018. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). 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This paper presents a DC load power system for a DC distribution application. The proposed power system includes two converters: DC/DC converter with battery source and power factor corrector (PFC) with a line source to increase the reliability of the power system when renewable energy or energy storage equipment are adopted. The proposed PFC adopts a bridgeless flyback converter to achieve power factor correction for supplying power to DC loads. When the bridgeless flyback converter is used to achieve PFC, it needs two transformers to process positive and negative half periods, respectively. In order to increase conversion efficiency, the flyback one can add two sets of the active clamp circuit to recover energies stored in leakage inductances of transformers in the converter. Therefore, the proposed bridgeless flyback converter can not only integrate two transformers into a single transformer, but also share a clamp capacitor to achieve energy recovery of leakage inductances and to operate switches with zero-voltage switching (ZVS) at the turn-on transition. With this approach, the proposed converter can increase conversion efficiency and decrease component counts, where it results in a higher conversion efficiency, lower cost, easier design and so on. Finally, a prototype with a universal input voltage source (AC 90–265 V) under output voltage of 48 V and maximum output power of 300 W has been implemented to verify the feasibility of the proposed bridgeless flyback converter. Furthermore, the proposed power system can be operated at different cases among load power PL, output power PDC1 of DC/DC converter and output power PDC2 of the proposed PFC for supplying power to DC loads.</description><subject>active clamp circuit</subject><subject>bridgeless flyback converter</subject><subject>Bridges</subject><subject>Control algorithms</subject><subject>Conversion</subject><subject>DC distribution</subject><subject>Efficiency</subject><subject>Electric converters</subject><subject>Electric potential</subject><subject>Electronics</subject><subject>Inductance</subject><subject>International standards</subject><subject>Light emitting diodes</subject><subject>PFC</subject><subject>Pollution</subject><subject>Power factor</subject><subject>Power supply</subject><subject>Quality standards</subject><subject>Voltage</subject><subject>Waveforms</subject><subject>ZVS</subject><issn>1996-1073</issn><issn>1996-1073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNpNkVtLAzEQhYMoWLQv_oIF34TVXHaTzmNdrRYKiuhzyOZSt66bNdla-u-NrajzMofhmzMDB6Ezgi8ZA3xlO5KKYeAHaEQAeE6wYIf_9DEax7jCqRgjjLERenr0GxuymdKDD1nlQ7A7tWmG1-w6NGZpWxtjNmu3tdJvieg-bRjSikvUTZUtvDIxm_Z922g1NL6Lp-jIqTba8U8_QS-z2-fqPl883M2r6SLXjJMh59ZyLYqaYgsGnMIF5xZrY0pluHNlSbnCQDGpKbHciBoEaKidmbiJghLYCZrvfY1XK9mH5l2FrfSqkbuBD0upwtDo1kpdk0JTUMwBLoSgwCzmgvMaC1NMeJ28zvdeffAfaxsHufLr0KX3JWWEsxKAlom62FM6-BiDdb9XCZbfEci_CNgXBGZ3cg</recordid><startdate>20181101</startdate><enddate>20181101</enddate><creator>Tseng, Sheng-Yu</creator><creator>Huang, Po-Jui</creator><creator>Wu, Dong-Heng</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-0131-6205</orcidid></search><sort><creationdate>20181101</creationdate><title>Power Factor Corrector with Bridgeless Flyback Converter for DC Loads Applications</title><author>Tseng, Sheng-Yu ; Huang, Po-Jui ; Wu, Dong-Heng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-6ee6c74b20e9d9fa0466e0cdd5ad6ff5526a09201b21e6d7b979c9bfd8f8a9593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>active clamp circuit</topic><topic>bridgeless flyback converter</topic><topic>Bridges</topic><topic>Control algorithms</topic><topic>Conversion</topic><topic>DC distribution</topic><topic>Efficiency</topic><topic>Electric converters</topic><topic>Electric potential</topic><topic>Electronics</topic><topic>Inductance</topic><topic>International standards</topic><topic>Light emitting diodes</topic><topic>PFC</topic><topic>Pollution</topic><topic>Power factor</topic><topic>Power supply</topic><topic>Quality standards</topic><topic>Voltage</topic><topic>Waveforms</topic><topic>ZVS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tseng, Sheng-Yu</creatorcontrib><creatorcontrib>Huang, Po-Jui</creatorcontrib><creatorcontrib>Wu, Dong-Heng</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Energies (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tseng, Sheng-Yu</au><au>Huang, Po-Jui</au><au>Wu, Dong-Heng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Power Factor Corrector with Bridgeless Flyback Converter for DC Loads Applications</atitle><jtitle>Energies (Basel)</jtitle><date>2018-11-01</date><risdate>2018</risdate><volume>11</volume><issue>11</issue><spage>3096</spage><pages>3096-</pages><issn>1996-1073</issn><eissn>1996-1073</eissn><abstract>Since power systems with a DC distribution method has many advantages, such as conversion efficiency increase of about 5–10%, cost reducing by about 15–20% and so on, the AC distribution power system will be replaced by a DC distribution one. 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Therefore, the proposed bridgeless flyback converter can not only integrate two transformers into a single transformer, but also share a clamp capacitor to achieve energy recovery of leakage inductances and to operate switches with zero-voltage switching (ZVS) at the turn-on transition. With this approach, the proposed converter can increase conversion efficiency and decrease component counts, where it results in a higher conversion efficiency, lower cost, easier design and so on. Finally, a prototype with a universal input voltage source (AC 90–265 V) under output voltage of 48 V and maximum output power of 300 W has been implemented to verify the feasibility of the proposed bridgeless flyback converter. 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subjects | active clamp circuit bridgeless flyback converter Bridges Control algorithms Conversion DC distribution Efficiency Electric converters Electric potential Electronics Inductance International standards Light emitting diodes PFC Pollution Power factor Power supply Quality standards Voltage Waveforms ZVS |
title | Power Factor Corrector with Bridgeless Flyback Converter for DC Loads Applications |
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