碩士 / 國立成功大學 / 電機工程學系 / 106 / In this thesis, the digital parallel-controlled inverter system is developed. The control strategy of the system is the combination of constant voltage control and constant current control which can let the system operate both in standalone and grid-connected mode. The constant voltage control strategy is realized by translating the output voltage signal from the stationary frame into the rotating frame so that sinusoidal voltage can be treated as dc value to be regulated. The constant current control strategy is implemented based on dq reference frame. By means of Park transformation, sinusoidal current can be represented as dc value, rotating synchronously at the detected frequency provided by phase-locked loop so that the active power and reactive power can be controlled separately by dq current command. Furthermore, with the use of the proposed PLL consist of the structure based on a second order generalized integrator (SOGI), the phase angle can be tracked precisely. Finally, the parallel-controlled inverter system is realized and experimental results show that the system can supply up to 1000 W in standalone mode and 500 W in grid-connected mode.
| Identifer | oai:union.ndltd.org:TW/106NCKU5442054 |
| Date | January 2018 |
| Creators | Po-EnWang, 王伯恩 |
| Contributors | Jia-You Lee, 李嘉猷 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 93 |
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