A novel control scheme for voltage multiplier based X-ray power supply
A dual-mode input voltage modulation (IVM) control scheme for a three-phase ZCS series resonant (SR) inverter fed three-phase voltage multiplier based DC-DC converter for X-ray power generator is proposed. The three-phase ZCS SR inverter is formed by connecting three single-phase ZCS SR inverters in...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2008
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| Online Access: | http://shdl.mmu.edu.my/2872/ |
| _version_ | 1848790172630515712 |
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| author | Shahid, Iqbal Rosli, Besar C., Venkataseshaiah |
| author_facet | Shahid, Iqbal Rosli, Besar C., Venkataseshaiah |
| author_sort | Shahid, Iqbal |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | A dual-mode input voltage modulation (IVM) control scheme for a three-phase ZCS series resonant (SR) inverter fed three-phase voltage multiplier based DC-DC converter for X-ray power generator is proposed. The three-phase ZCS SR inverter is formed by connecting three single-phase ZCS SR inverters in parallel and delaying the gating signals by 120 degrees with respect to each other. It operates at constant frequency & duty ratio. The lower arms of all the three single-phase inverters (i.e. which make three-phase ZCS-SR inverter) are connected to a common holding capacitor CH and the voltage V-H across it, is controlled by a control circuit. At the turn ON of the converter, the control circuit clamp voltage V-H to 0V, causing inverter to see full input voltage and output voltage to rise with maximum speed. As the output voltage reaches 80% of target voltage value, the voltage VH is raised from 0V to (V-H)ref, thereby reducing the effective input voltage to inverter. As a result the rise rate of output voltage slow downs and the over shoot is prevented. Experimental results based on the laboratory scale-down prototype are presented to verify the effectiveness of proposed dual-mode IVM control scheme.. |
| first_indexed | 2025-11-14T18:08:24Z |
| format | Conference or Workshop Item |
| id | mmu-2872 |
| institution | Multimedia University |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:08:24Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-28722011-09-21T07:32:15Z http://shdl.mmu.edu.my/2872/ A novel control scheme for voltage multiplier based X-ray power supply Shahid, Iqbal Rosli, Besar C., Venkataseshaiah T Technology (General) QA75.5-76.95 Electronic computers. Computer science A dual-mode input voltage modulation (IVM) control scheme for a three-phase ZCS series resonant (SR) inverter fed three-phase voltage multiplier based DC-DC converter for X-ray power generator is proposed. The three-phase ZCS SR inverter is formed by connecting three single-phase ZCS SR inverters in parallel and delaying the gating signals by 120 degrees with respect to each other. It operates at constant frequency & duty ratio. The lower arms of all the three single-phase inverters (i.e. which make three-phase ZCS-SR inverter) are connected to a common holding capacitor CH and the voltage V-H across it, is controlled by a control circuit. At the turn ON of the converter, the control circuit clamp voltage V-H to 0V, causing inverter to see full input voltage and output voltage to rise with maximum speed. As the output voltage reaches 80% of target voltage value, the voltage VH is raised from 0V to (V-H)ref, thereby reducing the effective input voltage to inverter. As a result the rise rate of output voltage slow downs and the over shoot is prevented. Experimental results based on the laboratory scale-down prototype are presented to verify the effectiveness of proposed dual-mode IVM control scheme.. 2008-03 Conference or Workshop Item NonPeerReviewed Shahid, Iqbal and Rosli, Besar and C., Venkataseshaiah (2008) A novel control scheme for voltage multiplier based X-ray power supply. In: 2nd International Conference on Electrical Engineering, 25-26 MAR 2008, Lahore, PAKISTAN. |
| spellingShingle | T Technology (General) QA75.5-76.95 Electronic computers. Computer science Shahid, Iqbal Rosli, Besar C., Venkataseshaiah A novel control scheme for voltage multiplier based X-ray power supply |
| title | A novel control scheme for voltage multiplier based X-ray power supply |
| title_full | A novel control scheme for voltage multiplier based X-ray power supply |
| title_fullStr | A novel control scheme for voltage multiplier based X-ray power supply |
| title_full_unstemmed | A novel control scheme for voltage multiplier based X-ray power supply |
| title_short | A novel control scheme for voltage multiplier based X-ray power supply |
| title_sort | novel control scheme for voltage multiplier based x-ray power supply |
| topic | T Technology (General) QA75.5-76.95 Electronic computers. Computer science |
| url | http://shdl.mmu.edu.my/2872/ |