基于波形相似度的水电站电流饱和变压器保护装置设计

为解决传统水电站电流饱和变压器保护装置保护及时率低的问题,基于波形相似度设计水电站电流饱和变压器保护装置。计算水电站电流饱和变压器保护运维动态基线,补偿水电站电流饱和变压器保护功率因数,基于波形相似度,分析水电站电流饱和变压器保护信号,采用NBC叠片式弹片,设定水电站电流饱和变压器保护装置额定电压,实现水电站电流饱和变压器保护装置设计。设计实例分析,结果表明,设计的保护装置保护及时率明显高于对照组,能够解决传统保护装置保护及时率低的问题。

Design of Protection Device for Current Saturation Transformer of Hydropower Station Based on Waveform Similarity

In order to solve the problem of low protection time rate of current saturation transformer protection device of traditional hydropower station,the current saturation transformer protection device of hydropower station is designed based on waveform similarity. Calculation of hydropower station,current operational dynamic baseline saturated transformer protection current transformer saturation protection power factor compensation hydropower station, based on the waveform similarity,analyzing current saturation transformer protection signal, the NBC fold chip shrapnel,current saturated transformer protection setting hydropower station rated voltage,current transformer saturation protection design for hydro power station. The analysis of design example shows that the protection timely rate of the designed protection device is obviously higher than that of the control group,which can solve the problem of low protection timely rate of the traditional protection device.