摘要
Rogowski线圈的输出信号与原信号成微分关系,为了还原原始信号,积分器是一个至关重要的环节。主要从继电保护的实际需求出发,对电子式电流互感器所采用的数字积分器的动态特性进行分析研究,根据设计精度的要求,提出了适当的算法,通过应用广泛的电力系统电磁暂态仿真软件PSCAD/EMTDC进行仿真验证并得到了较理想的结果。从工程实用化的角度出发,提出了实际应用中应该注意的问题及其对策。
Since the relationship between the output signal and the original signal of Rogowski coil is differential, integrator is a vital factor to represent the original signal. This paper focuses on the actual needs of relay protection, analyzes the dynamic characteristics of digital integrator which was utilized by ECT. According to the requirements of precision design, appropriate algorithm was put forward. With the help of power system transient electromagnetic simulation software PSCAD / EMTDC, the desirable results was got. From the perspective of practical engineering, the problems and solutions which should be highlighted in the practical application were raised.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第2期43-47,共5页
Power System Protection and Control
基金
国家自然科学基金项目(50507005)~~
