具隔離之直流轉交流變流器

Isolated DC-AC Inverter

戴佑坤(Yu-Kun Tai)

指導教授 ： 胡國英

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2008年)

摘要

本論文係在研製一具隔離之直流轉交流變流器，並且提出一種新式串聯脈寬調變(Pulse Width Modulation, PWM）控制模式，應用於直流轉直流昇壓轉換器，並將昇壓後穩定的直流電壓，再藉由DSP(dsPIC30F4011)產生弦波脈寬調變（Sinusoidal Pulse Width Modulation, SPWM）控制訊號，將直流電壓轉換為交流電壓。於本論文，首先針對相關理論進行推導與分析，最後藉由模擬及實作以驗證所提控制架構之可行性。

關鍵字

脈寬調變 ； 直流轉交流變流器

並列摘要

An isolated DC-AC inverter is presented herein. There are two stages in this inverter. The first stage is the DC-DC converter whereas the second stage is the DC-AC converter. Most of all, a novel cascaded pulse-width-modulated (PWM) DC-DC controller is applied to the first stage. As for the control of the second stage, a high performance digital controller named as dsPIC30F4011 is used to create the sinusoidal PWM (SPWM) control signal for the inverter so as to transfer the DC voltage to the AC voltage. In this thesis, first of all, the theoretical derivation is introduced, and secondly some simulated and experimental results are provided to verify the effectiveness of the proposed control strategy.

並列關鍵字

Isolated DC-AC Inverter ； PWM

參考文獻

[1] G. R. Walker, and P. C. Sernia, “Cascaded DC–DC Converter Connection of Photovoltaic Modules,“ IEEE Trans. Power Electron., vol. 19, no. 4, 2004, pp. 1130-1139.

[2] N. A. Ahmed, B. Saha, M. Miyatake, H. W. Lee and M. Nakaoka, “Advanced Single-Stage Soft Switching PWM Power Conditioner with Coupled Inductor PWM Boost Chopper Cascaded PWM Inverter and Time-Sharing Sinusoidal Follow-Up Control Scheme,” IEEE PESC’06, 2006, pp. 1-7.

[3] R. P. Severns and G. Bloom, Modern DC-to-DC Switchmode Power Converter Circuits, A & W Publishers, 1979.

[4] S. Ang and A. Oliva, Power-Switching Converter, Second Edition, Taylor & Francis Group, 2005.

[8] C. D. Perna, P. Varilone and P. Verde, “Power Converters for Fuel-Cells Based UPS to Improve Power Quality,” SPEEDAM’06, 2006, pp. S29-36-S29-41.