| URN |
etd-0731114-110951 |
Statistics |
This thesis had been viewed 454 times. Download 8 times.
|
| Author |
You-Fang Jhang |
| Author's Email Address |
No Public. |
| Department |
Institute of Electrical Engineering |
| Year |
2013 |
Semester |
2 |
| Degree |
Master |
Type of Document |
Master's Thesis |
| Language |
zh-TW.Big5 Chinese |
Page Count |
129 |
| Title |
A Z-source Photovoltaic Inverter with Simplified Short Circuit Interval Control Method |
| Keyword |
short circuit interval control
Z-source inverter
photovoltaic system
photovoltaic system
Z-source inverter
short circuit interval control
|
| Abstract |
This thesis develops a single-phase Z-source photovoltaic inverter which can convert the DC power of solar cells into AC power for home appliances. The Z-source Inverter solves the problem of reducing efficiency result from traditional multi-level inverter. Only need to use the combination of two inductors and capacitors and coordinate with the short time control of full bridge switches. The circuit achieves the purpose of boosting effect, reducing the system cost at the same time. Because the boost control of traditional Z-source converter takes the extra DC value comparison method to adjust the short circuit interval whose control method is more complicated and hard to realized, thus this research addresses a simplified boost control method by adjusting the overlapped conduction time of the upper arm and the lower switches to control the boost factor. Besides, this thesis provides more rapid and correct guidance for the selections inductors and capacitors of which bases on principle of Z-source circuit. In order to verify the feasibility, this research uses a TI 32-bit digital signal processor TMS320F2808 to implement a full digital photovoltaic Z-source inverter. This system via cross measurement analysis comes from the conditions of different voltage, different inductors and capacitors to confirm the simplified boost control methods can achieve the boosting function of Z-source circuit and according to the elements of inductors and capacitors result from parameter formula can prove this system will get the optimized effect of boost. |
| Advisor Committee |
Ming-Tsan Lin - advisor
Ching-Guo Chen - co-chair
Yi-Jen Wang - co-chair
|
| Files |
indicate accessible at a year |
| Date of Defense |
2014-07-09 |
Date of Submission |
2014-07-31 |
