Development of multistage CUK converter for PV voltage regulation
| dc.contributor.author | Salah, Wael A. Y. | |
| dc.date.accessioned | 2014-11-11T01:21:35Z | |
| dc.date.available | 2014-11-11T01:21:35Z | |
| dc.date.issued | 2007 | |
| dc.description | Master | en_US |
| dc.description.abstract | This thesis presents the design of a transformerless SMPS for low power applications. The converter circuit is based on CUK topology which is basically a combination of buck and boost converter topologies. The proposed converter topology is based on dividing the input voltage into storage devices as charging state and delivering the stored energy to the load in the discharging state. This process is operates at high speed to ensure continuous conduction of load current. The developed converter converts input DC voltage throughout multistage voltage chopping. The transfer of energy through the capacitive elements ensures that the load current is almost ripple free. Fast switching and low On-resistance power MOSFETs were used to step down the input voltage. The power switches operated at high frequency, and the PWM control IC was used to provide the operating signal for the switch. The simulation results show, that the converter had the capability to supply the load of power up to 100W with an efficiency of 90% under ideal parameters using rated load supplied from PV cell. The results show that the converter could operate properly at high switching frequency up to 500KHz. For the purpose of minimization of the stress on MOSFET switches, the frequency used for implementation of the converter was 200KHz. The circuit components were selected to reduce the switching and conduction losses. Practical implementation of the converter shows that the converter operated at an efficiency of 80% at 70W load, and suitable for TEC application. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/399 | |
| dc.language.iso | en | en_US |
| dc.subject | Science physic | en_US |
| dc.subject | CUK converter | en_US |
| dc.subject | PV voltage | en_US |
| dc.title | Development of multistage CUK converter for PV voltage regulation | en_US |
| dc.type | Thesis | en_US |
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