Experimental Study on Voltage-Current Sensor embedded in Insulator

绝缘子内嵌电压电流传感器的实验研究

• 批准号: 10650283
• 负责人: FURUKAWA Tatsuya
• 金额: $ 1.28万
• 依托单位: SAGA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650283/
• 关键词: Induction Sensor; Voltage-Current Sensor; Electromagnetic Analysis; Phase shift; Power Distribution; Ground Wire; Sensor in Insulator; Test Sensor; 電流電圧センサ内蔵がいし; 配電系力率計測; 電圧センサ; 電流センサ; 碍子内蔵センサ; 電圧電流センサ内蔵碍子; 非接触計測; 有限要素解析

The precise estimation of the electric power at the consumer end-side is eagerly demanded for the maintenance, control and the stable voltage regulation by electric power companies. There are several approaches to the observation of the power factor based on the practical waveform of both the voltage and the current. However, conventionally each sensor has been installed on power distribution lines independently. The measurement systems will be large and complicated to result in no maintenance free systems.To carry out the waveform observation for power factor, we have devised and proposed an insulator built-in type of voltage-current sensor. According to our previous investigations on the sensor, it was found out theoretically that a serious phase shift in the measured waveforms of the voltage and the current might occur owing to the electromagnetic interference of each phase.In this project, we have investigated the cause of phase shift in the voltage and current sensors through the finite element analyses on the single phase power distribution system, the horizontal and vertical three-phase power distribution systems. To compensate the phase shift in the current sensor, we have introduced the new current sensor coils, that are connected with opposite polarity to each other so that the sensor installed on each phase distribution line will measure only the flux linkage across its phase line and cancel the flux linkage due to other phase currents.Finally, based on the theoretical design, the prototype of the voltage-current sensor embedded in an insulator with above two coils has been fabricated in the insulator company and it has been found out experimentally that the effect of compensation on the phase shift in the current sensor could be obtainable in the simulated three-phase power distribution system.

电力公司在维护、控制和稳定电压调节等方面迫切需要对用户端侧的电功率进行精确估计。有几种方法可以根据电压和电流的实际波形来观察功率因数。然而，传统上，每个传感器被独立地安装在配电线路上。为了实现对功率因数波形的观测，我们设计并提出了一种绝缘子内置式电压电流传感器。根据我们以前对传感器的研究，从理论上发现，由于各相的电磁干扰，电压和电流的测量波形可能会发生严重的相移，在本项目中，我们通过对单相配电系统的有限元分析，研究了电压和电流传感器相移的原因，水平和垂直三相配电系统。为了补偿电流传感器中的相移，我们引入了新的电流传感器线圈，这些线圈彼此以相反的极性连接，使得安装在每个相配电线路上的传感器将仅测量其相线上的磁链，而抵消由于其他相电流引起的磁链。绝缘子公司已经制造了具有上述两个线圈的嵌入绝缘子中的电压-电流传感器的原型，并且已经通过实验发现，在模拟的三个线圈中可以获得对电流传感器中的相移的补偿效果。相位配电系统

项目成果

Ohchi, Masashi and Furukawa, Tatsuya,: "Numerical Analysis of Simulated Human Brain"IEEE Transactions on Magnetics. 36(to be published). (2000)

Ohchi, Masashi 和 Furukawa, Tatsuya，：“模拟人脑的数值分析”IEEE 磁学汇刊。

相知、古川: "誘電率測定用平行平板コンデンサの数値電界解析による測定原理の検証"電気学会論文誌A. 119-A. 764-769 (1999)

Oichi, Furukawa：“通过对介电常数测量的平行板电容器进行数值电场分析来验证测量原理”，日本电气工程师协会会刊 A. 764-769 (1999)。

H. Shimada, T. Furukawa and M.Ohchi: "Electric field analysis for a static induction type of voltage sensor in three-phase power distribution systems" Institute Electrical Engineering Proceedings of Generation Transmission and Distributions. 145・4. 437-44

H. Shimada、T. Furukawa 和 M.Ohchi：“三相配电系统中静态感应型电压传感器的电场分析”，《发电输配电研究所电气工程论文集》145・44。

T. Furukawa, M. Ashikawa, M. Ohchi and H. Shimada: "Finite Element Analysis of Insulator build-in type of Voltage-Current Sensor with Compensation Winding"IEEE Transactions on Magnetics vol. 36. 7 (印刷中). (2000)

T. Furukawa、M. Ashikawa、M. Ohchi 和 H. Shimada：“带补偿绕组的绝缘体内置型电压电流传感器的有限元分析”IEEE 磁学汇刊第 36 卷，2000 年（出版中）。 ）

M. Ohchi and T. Furukawa: "Numerical Analysis of Simulated Human Brain"IEEE Transactions on Magnetics. 7 (印刷中). (2000)

M. Ohchi 和 T. Furukawa：“模拟人脑的数值分析”IEEE Transactions on Magnetics（2000 年出版）。