基于数学形态学复合滤波和无时延d-q变换的电压暂态扰动识别
Relay（2007）
Abstract
暂态电压扰动的识别是当前电能质量领域研究的热点,采用了无时延d-q变换进行暂态电压扰动识别,从而解决了延时60°构造对称三相电压的d-q变换的镜像扰动问题,针对无时延d-q变换易受谐波及高频噪声干扰的缺点,研究了数学形态学结合离散积分的滤波方案,用以取代传统的数字低通滤波器。在LabVIEW中的将该方案与传统数字低通滤波器进行对比,结果表明该滤波方案响应速度快,适应能力强,检测精度高,具有非常优越的综合性能。
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Key words
response speed,voltage swell,voltage disturbances,d-q transform,discrete integral,mathematical morphology,voltage sag,integrated filters
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