Fusiek Grzegorz, Niewczas Pawel
Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow G1 1XW, UK.
Sensors (Basel). 2022 Jul 15;22(14):5307. doi: 10.3390/s22145307.
This paper reports on the construction and characterization of an optical voltage transducer module for applications in the field of wide-area monitoring, protection, and control (WAMPAC). The optical medium voltage transducer (MVT) module was designed to be combined with a capacitive voltage divider (CVD) to form a voltage sensor intended for 132 kV high voltage (HV) networks. The MVT module comprises a combination of a piezoelectric transducer (PZT) and a fiber Bragg grating (FBG) as a core optical sensing element. Changes in the input voltage across the PZT translate into strain being detected by the FBG. The resultant FBG peak wavelength can be calibrated in terms of the input voltage to obtain a precise voltage measurement. The module was experimentally evaluated in the laboratory, and its performance was assessed based on the requirements specified by the IEC standards for electronic voltage transformers and low power voltage transformers. The results of accuracy tests demonstrate that the MVT module is free from hysteresis, within the experimental error, and is capable of simultaneously meeting the requirements for 0.1 metering and 1P protection classes specified by the IEC 60044-7 and IEC 61869-11 standards.
本文报道了一种用于广域监测、保护和控制（WAMPAC）领域的光学电压传感器模块的构建与特性。光学中压传感器（MVT）模块设计为与电容分压器（CVD）组合，以形成用于132 kV高压（HV）网络的电压传感器。MVT模块包括压电传感器（PZT）和光纤布拉格光栅（FBG）的组合作为核心光学传感元件。PZT两端输入电压的变化转化为FBG检测到的应变。由此产生的FBG峰值波长可以根据输入电压进行校准，以获得精确的电压测量值。该模块在实验室进行了实验评估，并根据国际电工委员会（IEC）电子电压互感器和低功率电压互感器标准规定的要求对其性能进行了评估。精度测试结果表明，MVT模块在实验误差范围内无滞后现象，并且能够同时满足IEC 60044-7和IEC 61869-11标准规定的0.1计量和1P保护等级要求。
