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  • 學位論文

市電併聯單相太陽能換流器比例-積分補償器之分析與設計

Analysis and Design of PI Compensator for a Grid-Tied Single-Phase PV Inverter

指導教授 : 謝冠群 謝宏毅
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摘要


本論文之目的在於研製市電併聯型單相太陽能換流器及探討比例-積分控制器補償對系統穩定度和諧波抑制的情形。相較於比例型控制器,比例-積分型控制器對總諧波失真(THD)確實有良好的雜訊抑制效果。本研究的實驗方式係直接以DC source模擬升壓轉換器後端的DC bus,再以一參考訊號模擬太陽能板經過最大功率追蹤取得的數值來調節輸出至市電的電流。本文針對電流控制系統與補償器提出完整的分析與討論,並實際製作一部1.5kW的太陽能換流器。在此控制架構中,本文並以系統分析結果應用在硬體實務以驗證分析結果及其動態特性。最後,針對系統性能估測,分別對比例型與比例-積分型補償器所產生的諧波及電流總諧波失真做比較及分析。

並列摘要


The purpose of this thesis is to design and realize a gird-tied single-phase PV inverter and investigate a proportional-plus-integral (PI) compensator for system stability and harmonic elimination. In comparison with P controller, the PI controller can provide good ability for harmonic elimination to achieve lower total harmonic distortion (THD). In this work, a DC source like a DC bus from the boost converter and a reference signal from simulation solar panels after maximum power point tracking (MPPT) are used to regulate the output current to grid-tied utility. The system control including PI compensator is analyzed completely and its efforts are applied in the hardware implementation of a 1.5kW PV inverter to verify the estimated analysis and dynamic response. Finally, the harmonics and current THDs produced due to P and PI compensators are compared and analyzed with each other to investigate their performance on system.

參考文獻


[23] 沈明建,再生能源混合型發電系統市電併聯轉換器之研製,中原大學電機工程研究所碩士論文,民國97年7月。
[32] 侯嘉信,市電併聯型單相太陽能光伏換流器之研製,中原大學電機工程研究所碩士論文,民國100年7月。
[3] J. Selvaraj, N. A. Rahim and C. Krismadinata, “Digital PI current control for grid connected PV inverter,” Proceedings of the 3rd IEEE Conference Ind. Electron. Appl.(ICIEA), pp. 742-746, 2008.
[4] J. Dannehl, C. Wessels and F. W. Fuchs, “Limitations of Voltage-Oriented PI Current Control of Grid-Connection PWM Rectifiers With LCL Filters,” Journal of the IEEE Trans. Ind. Electron., Vol. 56, No. 2, pp. 380-388, 2009.
[6] G. R. Walker and P. C. Sernia, “Cascaded DC-DC Converter Connection of Photovoltaic Modules,” Proceedings of the 33rd Annual on Power Electronics, Vol. 19, No. 4, pp. 1130-1139,2004

被引用紀錄


廖崧閔(2014)。以d-q控制為基礎的單相太陽能換流器研製〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201400626
陳昱維(2013)。市電併聯型單相太陽能換流器之數位比例-積分補償器分析與設計〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201300638

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