在電力系統中，繼電保護裝置為確保電網的安全穩定運行發揮著極其重要的作用。暫
態保護同基于工頻電氣量的傳統保護相比具有快速動作的特性，但是，當需要對暫態保護的 儀器進行測試時，當今的工頻繼電保護測試儀無法輸出高頻信號。基于此，本文提出的基于 DDS的暫態保護測試系統，可對暫態保護和工頻保護裝置進行測試。
關鍵詞：DDS；暫態保護；測試系統; MVC

Design of Transient-State Protection Testing System based on DDS Liu Bo,Shu Kang, Hu SanQing (Electronic Information Engineering Department, Hua Zhong University of Science and Technology,Wuhan 430073,P.R.China) Abstract:Relay protection devices to ensure the safe and stable operation play a vital role in power system.Compare to the tradional frequency protection, transient-state protection moves more nimble.But when the need for transient-state protection devices for testing, tradional frequency relay protection testing devices don’t output high frequency signals.So this paper introduces a kind of transient-state protection testing systems based on DDS,which can test both the transient-state protection and tradional frequency protection devices.
Key word: DDS；Transient-State protection；Testing system; MVC