The demand for the electricity is increasing rapidly due to the modernization of the world. The complexity of operating the power system is increasing due to the introduction of renewable energy sources and decentralized power generation. Due to this measurement and monitoring of power system also became complex. The power system monitoring and measurement data getting from the existed power system monitoring methods like Supervisory Control And Data Acquisition (SCADA), Energy Management Systems (EMS) are of slower rate, which is a major drawback in power system monitoring. Thus, the existed power system monitoring methods needs to be improving in data collection from the power system and these methods will give limited information about the power system parameters. In order to get the more information about the power system parameters and faster data collection from the power system is possible by phasor measurements with intelligent electronic device (IED). This IED collects the voltage and current signals data from the power system at faster rates and send it into software program to calculate the phasor measurements, remaining power system operating parameters like voltage, current, frequency, active and reactive powers. The phasors of voltage and current will give the live representation of the voltage and current signals and these values are helpful to know the complete information about the power flow in dynamic condition. By adding time tag to the each phasor value accurate measurement of power flow is possible, which is an important criterion in wide area monitoring of power system. For the storage of Power system parameters and phasor measurements huge storage system is required. Generally the power system is operated under healthy condition nearly 90% of the time. By storing the data during the disturbance conditions requirement of data storage system is reduced. In this paper single-phase voltage phasor measurement, three-phase voltage phasor measurement by non-recursive Discrete Fourier Transform (DFT) technique in LabVIEW, protection against the variation in voltage magnitude, frequency and change in frequency with less data storage is presented.
Volume 12 | 08-Special Issue
Pages: 625-636
DOI: 10.5373/JARDCS/V12SP8/20202564