- 學位論文
應用於配電系統電壓調整之十二脈波靜態同步補償器
Design of a Twelve Pulse Static Synchronous Compensator for Distribution System Voltage Regulation
摘要
在科技日進千里的今日，各式各樣的消費性電子產品已成為生活不可或缺的一環。而工業界也隨著對產品的需求與日劇增下，進而擴廠或添加精密度更高的負載設備用以提高產能或提升產品良率，相形之下電力品質也就愈顕重要。在電力品質問題中，以電壓變動所占比例最高，已有很多的研究是在針對在電壓變動發生時，如何在最短的時間內回復至原始電壓值，並使之穩定，以減少對敏感性設備的傷害。 本文將分析及設計並聯型靜態同步補償器（Static Synchronous Compensator, STATCOM），使用12脈波電壓型變流器（12-pulse Voltage Source Inverter, 12-pulse VSI）作為靜態同步補償器之架構，以一直流電容器提供變流器電壓來源。並根據補償之需求設計控制器，以即時控制方式完成電壓變動之補償。本文中，使用模擬軟體與實驗平台完成補償器之設計，模擬方面使用MATLAB-Simulink軟體來評估系統補償效果；實驗方面以個人電腦為基礎，配合研華PCL-1800資料擷取卡，透過C語言來達成電壓補償控制。 最後根據模擬及實驗結果可證明，本文所設計之12脈波靜態同步補償器確實可應用於調整配電系統電壓。
並列摘要
The proliferation of voltage-sensitive load equipment has made the industrial processes much more vulnerable to degradation in the quality of power supply. Voltage deviations can cause severe process disruptions and result in substantial economic losses. Therefore, there are many studies on how to recover the original voltage immediately and keep it steady when voltage deviations are detected. The purpose of the thesis is to analyze and design the Static Synchronous Compensator （STATCOM）. The proposed STATCOM comprises a 12-pulse Voltage Source Inverter（VSI） and a DC capacitor. Proportional-Integral（PI） controller are designed in order to regulate ac bus voltage and stabilize DC capacitor voltage. Both computer simulations and experiments are conducted in order to demonstrate the effectiveness of the proposed controller. MATLAB-Simulink is employed as the simulation tools in order to design proper parameters for the controller. In the experiments, PC-based Adventec PCL-1800 data acquisition cards with C language are used to achieve voltage compensation. Results from computer simulations and experiments indicate that ac bus voltage can be regulated effectively by the proposed 12-pulse STATCOM.