【摘要】 在电力系统中,继电保护装置为确保电网的安全稳定运行发挥着极其重要的作用。暂态保护同基于工频电气量的传统保护相比具有快速动作的特性,但是,当需要对暂态保护的仪器进行测试时,当今的工频继电保护测试仪无法输出高频信号。基于此,本文提出的基于DDS的暂态保护测试系统,可对暂态保护和工频保护装置进行测试。更多还原

【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 test-ing, tradional frequency relay protection testing devices don’t output high frequency signals.So this paper introduces a kind of tran-sient-state protection testing systems based on DDS,which can test both the transient-state protection and tradional frequency pro-tection devices.更多还原