Remote Calibration of Electrical Measurements in Power System

为了满足电力工业对高效、低成本方法的需求，提出了电测量远程校准和缺陷仪器远程识别的研究。电力系统的可靠性和运行经济性要求准确测量电流、电压、实功率和无功功率。通常，测量的次数是数千次。测量流中的主要传感器、换能器和其他仪器会随着时间、温度和环境的变化而漂移和恶化。它们需要定期检查和校准。拟议的研究将试图取代目前的程序，即由现场校准设备在现场定期检查和校准单个仪器，而不是由此产生的测量结果，这一过程是劳动密集的，不及时的，会产生自己的错误，并干扰电力系统的正常运行。所提出的研究具有远程识别缺陷仪器和远程校准测量的潜力，从而大大减少了对分布在广泛区域的数千台仪器进行定期检查所需的工作量，并显着提高了电力系统运行所需的测量质量。

Research in remote calibrations of electrical measurements and remote identification of defective instruments is proposed in response to the electric power industry's need for an efficient and less costly methodology. Power system reliability and economy of operation requires accurate measurements of current, voltage, real and reactive power. Typically, the number of measurements is in the thousands. The primary sensors, transducers, and other instruments in the measurement streams are subject to drift and deterioration with time, temperature and environment. They need periodic inspections and calibrations. The proposed research would attempt to replace the present procedure where individual instruments, rather than the resulting measurements, are periodically inspected and calibrated on locations by field calibrating equipment, a process which is: labor intensive, untimely, introduces its own errors, and interferes with normal operation of the power system. The proposed research has the potential of remotely identifying defective instruments and remotely calibrating measurements, thus drastically reducing the effort required in the periodic inspection of several thousands of instruments spread over a wide area, and significantly improving the quality of measurements needed for power system operation.