Design of Synchronous Measurement System for Total Electric Field and Ion Current Density Based on Wireless Communication

被引：0

作者：

Zhang Y. ^{[1
]}

Lu Y. ^{[1
]}

Wang Y. ^{[1
]}

Li N. ^{[1
]}

Li B. ^{[2
]}

Li Y. ^{[3
]}

机构：

[1] State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan

[2] State Grid DC Construction Company, Beijing

[3] State Grid Hubei Corporation Electric Power Maintenance Company, Wuhan

来源：

Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Calibration; DC transmission; Field mill; Ion current density; Total electric field strength; Wireless communication;

D O I：

10.13336/j.1003-6520.hve.20181229032

中图分类号：

学科分类号：

摘要：

In order to realize multi-point synchronous measurement for total electric field and ion current density, the various wireless communication modes were compared. In accordance with the characteristics that measurement equipment is used on the ground for total electric field and ion current, we chose the Si4463 as the wireless chip with the advantages of the great diffraction performance and far propagating distance, adopted the differential input mode to decrease the interference by the input of ion signal through field mill, and applied the T-type network to provide sufficient amplification while reducing the input impedance to measure ion current density. According to the characteristics of measurement circuits, an appropriate filter circuit and a controllable amplification circuit were designed. The hardware and software systems for synchronous measurement were constructed and calibrated by the standard calibration device. A prototype was developed and tested in site. The research results indicate that the measurement device has good linearity, high accuracy, and communication distance up to 500 m. It can satisfy the requirements of the multi-channel and remote synchronous measurement of the DC total electric field and ion current density. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：330 / 336

页数：6

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