| CVT 分压电容对谐波传变特性影响修正方法研究 |
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| 引用本文： | 薛峰,谢伟伦,谢培成,吴洁婷,朱铁超. CVT 分压电容对谐波传变特性影响修正方法研究[J]. 电力电容器与无功补偿, 2020, 0(1): 129-134 |
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| 作者姓名： | 薛峰 谢伟伦 谢培成 吴洁婷 朱铁超 |
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| 作者单位： | ;1.广东电网有限责任公司东莞供电局 |
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| 基金项目： | 国家自然科学基金项目(61876040);中国南方电网有限责任公司科技项目(GDKJXM20162094)。 |
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| 摘 要： | 针对电容式电压互感器(CVT)不同分压电容值组合配置在电压测量中对谐波电压传变的影响,本文利用等效电路分析的方法,在对分压电容的差异对谐波传递特性影响分析的基础上,提出了一种通过离线仿真结合双线性插值法消除分压电容的离散性对各次谐波测量结果影响的校正方法,并通过对实际现场采集数据的分析计算验证了方法的有效性,该方法对于基于CVT的谐波校正装置的开发具有重大的实际应用价值。
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| 关 键 词： | 电容式电压互感器 分压电容 谐波测量 校正方法 |
Study on Correction Method of Influence of CVT Dividing Capacitor on Harmonic Transfer Characteristics |
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| XUE Feng,XIE Weilun,XIE Peicheng,WU Jieting,ZHU Tiechao. Study on Correction Method of Influence of CVT Dividing Capacitor on Harmonic Transfer Characteristics[J]. Power Capacitor $ Reactive Power Compensation, 2020, 0(1): 129-134 |
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| Authors: | XUE Feng XIE Weilun XIE Peicheng WU Jieting ZHU Tiechao |
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| Affiliation: | (Guangdong Power Grid Co.,Ltd.,Dongguan Power Supply Bureau,Guangdong Dongguan 523000,China) |
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| Abstract: | In view of the influence of different capacitance combination configuration of capacitor voltage transforme(r CVT) on the voltage transmission in the voltage measurement,in this paper,the equivalent cir cuit analysis method is used and,on the basis of analysis of the influence of dividing capacitance difference on harmonic transmission characteristic,a kind of correction method with off line simulation combined with bilinear interpolation method is proposed to eliminate the influence of the scattered dividing capacitance on each harmonic measurement result is proposed. The effectiveness of the method is verified by the analysis and calculation of the collected data at site, which has remarkable significance on the development of har monic correction device based on CVT. |
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| Keywords: | CVT dividingcapacitance harmonicmeasurement correctionmethod |
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