| URN |
etd-0627111-114819 |
Statistics |
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|
| Author |
Hsueh-Min Chen |
| Author's Email Address |
No Public. |
| Department |
Institute of Electrical Engineering |
| Year |
2010 |
Semester |
2 |
| Degree |
Master |
Type of Document |
Master's Thesis |
| Language |
zh-TW.Big5 Chinese |
Page Count |
121 |
| Title |
Implementation of a Single-Phase Z-Source Inverter for Grid-Connected Photovoltaic Systems |
| Keyword |
Z-Source inverter
digital control
photovoltaic system
photovoltaic system
digital control
Z-Source inverter
|
| Abstract |
This thesis studies a single-phase grid-connected photovoltaic system based on a Z-source inverter. The system directly converts the DC power generated by the photovoltaic modules into AC power and connects to the utility power system. Moreover, Z-source inverter is a single-stage topology, so its efficiency could be higher than other multi-stage systems. When the sun moves during a day or cloud cover changes, the system makes use of the buck-boost feature of the Z-source and applies the maximum-power-point-tracking scheme to output the maximum power of the photovoltaic modules. In addition, the system is based on a 32-bit digital signal processor TMS320F2808 to realize a full digital photovoltaic power system. Because the system only uses the PWM generator of the DSP TMS320F2808 to output all the Z-source trigger signals, it does not need the extra digital circuit hardware and the cost of system is decreased. Finally, the experimental results show that the system could work on a wide voltage range from 130-300 volts. The maximum output power of the system is up to 1kWatt and the efficiency of the system can reach to 97%. It is very suitable to apply to small power of solar power system. |
| Advisor Committee |
Ming-Tsan Lin - advisor
Ching-Guo Chen - co-chair
Yueh-Ru Yang - co-chair
|
| Files |
indicate in-campus access at 1 years and off-campus access at 5 years |
| Date of Defense |
2011-06-10 |
Date of Submission |
2011-06-27 |
