The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications
碩士 === 國立臺北科技大學 === 電機工程系研究所 === 100 === This paper presents a new electrolytic capacitor-less and single-stage controlled three-phase battery charger with electrical isolation to provide wide-range output voltage for EV applications. To achieve this, a three-phase rectifier cascaded by a current-fe...
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ndltd-TW-100TIT054420382019-05-15T20:51:51Z http://ndltd.ncl.edu.tw/handle/fvk293 The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications 無電解電容與單級控制之三相具電氣隔離車用電池充電器設計 Yao-Zhu Hsieh 謝曜竹 碩士 國立臺北科技大學 電機工程系研究所 100 This paper presents a new electrolytic capacitor-less and single-stage controlled three-phase battery charger with electrical isolation to provide wide-range output voltage for EV applications. To achieve this, a three-phase rectifier cascaded by a current-feed isolated buck-boost converter is proposed to yield DC voltage output and eliminate the bulk electrolytic capacitor installed behind the rectifier. Therefore, the lifetime of charger can be dramatically extended. Duo to without bulk electrolytic capacitor, there exists large ripple voltage at the output of three-phase rectifier. A design procedure of the controller with high rejection for voltage disturbance is developed to mitigate the current and voltage ripples for charging battery. Besides, the power factor compared to traditional rectifier is improved by the proposed single-stage topology simultaneously. Due to ZVS in light load and single stage switching architecture for the proposed charger, the efficiency is increased. Experimental results derived from the DSP-based controlled charger will be presented. The charger rating is 4 kW and output voltage is from 50V to 400V. It will be shown that the output current and voltage ripple is reduced significantly without any electrolytic capacitors in the proposed charger. It will also be demonstrated that the efficiency is nearly 96% and the power factor is also improved at rated load compared that for rectifier. These experimental results therefore confirm the superb performance of the proposed topology and control techniques. 黃明熙 2012 學位論文 ; thesis 106 zh-TW |
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碩士 === 國立臺北科技大學 === 電機工程系研究所 === 100 === This paper presents a new electrolytic capacitor-less and single-stage controlled three-phase battery charger with electrical isolation to provide wide-range output voltage for EV applications. To achieve this, a three-phase rectifier cascaded by a current-feed isolated buck-boost converter is proposed to yield DC voltage output and eliminate the bulk electrolytic capacitor installed behind the rectifier. Therefore, the lifetime of charger can be dramatically extended. Duo to without bulk electrolytic capacitor, there exists large ripple voltage at the output of three-phase rectifier. A design procedure of the controller with high rejection for voltage disturbance is developed to mitigate the current and voltage ripples for charging battery. Besides, the power factor compared to traditional rectifier is improved by the proposed single-stage topology simultaneously. Due to ZVS in light load and single stage switching architecture for the proposed charger, the efficiency is increased.
Experimental results derived from the DSP-based controlled charger will be presented. The charger rating is 4 kW and output voltage is from 50V to 400V. It will be shown that the output current and voltage ripple is reduced significantly without any electrolytic capacitors in the proposed charger. It will also be demonstrated that the efficiency is nearly 96% and the power factor is also improved at rated load compared that for rectifier. These experimental results therefore confirm the superb performance of the proposed topology and control techniques.
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author2 |
黃明熙 |
author_facet |
黃明熙 Yao-Zhu Hsieh 謝曜竹 |
author |
Yao-Zhu Hsieh 謝曜竹 |
spellingShingle |
Yao-Zhu Hsieh 謝曜竹 The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
author_sort |
Yao-Zhu Hsieh |
title |
The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
title_short |
The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
title_full |
The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
title_fullStr |
The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
title_full_unstemmed |
The Design of an Electrolytic Capacitor-less and Single-Stage Controlled Three-Phase Isolated Battery Charger for EV Applications |
title_sort |
design of an electrolytic capacitor-less and single-stage controlled three-phase isolated battery charger for ev applications |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/fvk293 |
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