應用電流注入法於分散型電源主動式孤島偵測

Current Injection for Active Islanding Detection of Electronically-Interfaced Distributed Resources

邱泓鈴(Hong-Ling Ciou)

指導教授 ： 劉志文

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2008年)

https://doi.org/10.6342/NTU.2008.01889

摘要

本篇論文提出一在電力標準下，對分散式電源作主動式孤島偵測的方法。文中所提的方法為經由電壓源型換流器（voltage-sourced converter，VSC）的電流控制器注入一干擾訊號，並且偵測此干擾訊號在責任分界點（point of common coupling，PCC）所造成的電壓或頻率之變動；當干擾訊號經由d-axis controller 注入系統，會引起PCC點電壓振幅的變動，反之，若干擾訊號經由q-axis controller 注入系統，則是造成PCC上頻率的偏移。而我們則是藉由變動的存在與否來判斷電力系統是否發生故障、孤島是否發生。
　　本研究以MATLAB/Simulink套裝軟體作系統平台之模擬，以驗證所提之孤島偵測方式之可行性。經由模擬結果證實，本文所提之主動式孤島偵測方式確實可行。

關鍵字

分散型供電 ； 分散型電源 ； 分散式系統 ； 孤島效應 ； 孤島偵測

並列摘要

This thesis presents an active islanding detection method for distributed resource units at the distribution voltage level. The proposed method is based on injecting a disturbance signal into the system through either the direct axis (d-axis) or the quadrature axis (q-axis) current controllers of the voltage-sourced converter. The signal injection through the d-axis controller modulates the amplitude of the voltage at the point of common coupling (PCC), whereas signal injection through the q-axis controller causes a frequency deviation at PCC.
　　To verify the feasibility of the proposed method for islanding detection, the method has been implemented in the MATLAB/Simulink platforms. The studies show that the proposed active islanding detection method is successful in detecting the islanding phenomenon.

並列關鍵字

distributed generation ； distributed resources ； distribution systems ； islanding ； islanding detection

參考文獻

[4]Guillermo Hernandez-Gonzalez and Reza Iravani，＂

Electronically-Interfaced Distributed Resources,＂IEEE

Transactions on Power Delivery, vol.21, no.3, pp.1698-

1705, July 2006.

of Advanced Static VAR Compensators,＂IEE Proceedings-