El-Shahat Mohammed, Tag Eldin Elsayed, Mohamed Nourhan A, El-Morshedy Ahdab, Ibrahim Mohamed E
Department of Electrical Power Engineering, Faculty of Engineering, Cairo University, Giza 12613, Egypt.
Future University in Egypt, Cairo 11835, Egypt.
Sensors (Basel). 2022 Jun 1;22(11):4220. doi: 10.3390/s22114220.
The measurement of a power frequency current including low- and high-order harmonics is of great importance in calibration as well as in testing processes. Therefore, this paper presents the measurement of the power frequency current of light-emitting diode (LED) luminaires. LED luminaires were chosen as their input current includes both low- and high-order harmonics. The measurement process depends on reconstructing an LED luminaire current without using the coil parameters. Hence, the current reconstruction process is designed to be dependent on the measured characteristics of the Rogowski coil itself considering the frequency range at which the measurement process is required. An evaluation of the proposed measurement process was theoretically and experimentally carried out. A theoretical evaluation was carried out using MATALB SIMULINK software. However, the experimental evaluation was performed by building a Rogowski coil to measure the input currents of different LED luminaires having different power ratings of 300 W, 400 W, and 600 W. The currents measured using the Rogowski coil were compared with reference currents measured using a standard measurement technique. The obtained results show the efficacy of the proposed measurement method.
对包含低阶和高阶谐波的工频电流进行测量，在校准以及测试过程中都非常重要。因此，本文介绍了发光二极管（LED）灯具工频电流的测量方法。选择LED灯具是因为其输入电流包含低阶和高阶谐波。测量过程依赖于在不使用线圈参数的情况下重构LED灯具电流。因此，考虑到测量过程所需的频率范围，电流重构过程设计为依赖于罗氏线圈自身的测量特性。对所提出的测量过程进行了理论和实验评估。理论评估使用MATALB SIMULINK软件进行。然而，实验评估是通过构建一个罗氏线圈来测量不同额定功率（300W、400W和600W）的不同LED灯具的输入电流来进行的。将使用罗氏线圈测量的电流与使用标准测量技术测量的参考电流进行比较。所得结果表明了所提出测量方法的有效性。
