Electricity Meter with the Facility to Determine the Quality of the Electricity Supplied (original) (raw)
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INSTITUTE OF ELECTRONICS ENGINEERS OF THE PHILIPPINES JOURNAL (IECEP), 2021
Many researchers have studied power quality measurements and monitoring. Power quality has always been important as it is equated to reliabilityundisturbed operation or functionality of electrical systems in customer facilities. This study reports on the development of a system for measuring and monitoring the parameters characterizing the quality of electrical power used in facilities within consumer premises. The determining of quality parameters such normal voltage operating range, current, power factor, apparent power, reactive power and the real power. Also the study includes the computation of total power and power consumption at specific date and time. The raw data of these parameters are process and log in real time. It can be access remotely via the internet or mobile application through SMS. The system employed the developed software for remote accessing and data base using Visual Basic programming and MySQL. Testing revealed the developed system to be reliable and appropriate for operation related to monitoring electrical power in the customer premises. Monitoring of the power used in customer facility can be a possible ground in initiating correcting measures in order to minimize power consumption. The study can be further improved by including parameters such as waveform distortion, frequency and voltage flickers to comply with all the specifications demanded for such systems by national norms and regulations.
Embedded Electricity Quality Analyzer
International Journal of Electrical Energy, 2014
Electric installations are traditionally designed for supplying an electric service. The only one associated instrument is the energy meter that is introduced only for measure the total amount of energy that will be charged to the user. However, the exploration of parameters associated with electricity can provide several advantages such the household performance devices, legal issues and later one a more sustainable way to use the electricity energy. This work presents the principle of a low cost energy analyzer that will be part of an electric home installation. Electric parameters are measured and then transmitted via Wi-Fi to a domestic server where all data are stored. This data exploitation can be later one used for several purposes, since electric efficiency to electric charges prediction. Index Terms-power quality energy, renewable energy sources, electricity energy monitoring
Low-cost digital system for power quality monitoring
2003
This paper describes the development of a low-cost digital system used for power quality monitoring and power management. The system uses voltage and current Hall sensors, a standard data acquisition board, and has its processing system based in LabVIEW™, running on a regular PC. The system acquires data continuously, and storage in files the events that result from the anomalies detected in the monitored power system. Several parameters related to power quality can be analysed through 6 different applications: "Scope and THD", "Strip Chart", "Wave Shape", "Sags and Swells", "Classical Values" and "p-q Theory Values". The acquired information can be visualized in tables and/or in charts. It is also possible to generate reports in HTML format. In this format, the reports can be sent directly to a printer, can be embedded in other software applications, or can be accessed through the Internet, using a web browser. It is also shown the potential of the developed system, namely the advantages of virtual instrumentation, regarding to flexibility, cost and performance in the scope of power quality monitoring and power management (after acquisition, processing and analysing of the information, data and warnings can be sent through Internet or wireless technology).
Design and Development of a Power Quality Based Digital Energy Meter
Engineering Proceedings, 2021
In power distribution systems of many countries, service lines are directly connected to the consumer meters without any load management system. Conventional meters lack in internal power quality measurement, and utility also cannot measure the power factor and other values during the month. This study aims to design a smart kit that aids conventional single-phase energy meters and calculates the power values of all phases by measuring the voltage, current, and power factor on the load side; and the calculated power values will be sent to the cloud data base Voltage and current are measured by a current transformer (CT) and a potential transformer (PT) connected on both the incoming side and the load side in order to avoid meter bypassing. A program-based algorithm has also been developed to calculate the power factor and other power quantities. This IoT-based energy meter uploads the measured quantities to an online database, and the same are also displayed on an LCD meter. An Andr...
About power quality monitoring in residential grids
Renewable Energy and Power Quality Journal, 2017
The paper presents some voltage power quality issues in a low voltage residential area. In the introductory section, a few specific problems related to the monitoring process are addressed. The following section is devoted to the power quality survey intended for diagnosis. A portable hand-held, eight channels, power quality meter/monitor. It was a reactive mode of power quality survey, determined by the misoperation of the home automation in a residence, which was the first step to a solution of mitigating the power quality issues.
Journal of Power Electronics, 2012
Skopje, Macedonia This paper presents the development of a software supported acquisition system for metrological verification and testing of the equipment for monitoring and analysis of the basic electrical power quality parameters. The described procedure consists of two functionally connected segments. The first segment involves generation of the reference three-phase voltage signals, including the possibility of simulation of the various power quality disturbances, typical for electrical power distribution networks. The second part of this procedure includes the real-time recording of power quality disturbances in three-phase distribution networks. The procedure is functionally supported by the virtual instrumentation concept, including a software application developed in LabVIEW environment and data acquisition boards NI 6713 and NI 9215A. The software support of this system performs graphical presentation of the previously generated and recorded signal waveforms. A number of the control functions and buttons, implemented on the virtual instrument front panels, are provided to adjust the basic signal acquisition, generation and recording parameters.
2 Departamento de Electrónica Industrial
2015
Abstract. This paper describes the development of a low-cost digital system used for power quality monitoring and power management. The system uses voltage and current Hall sensors, a standard data acquisition board, and has its processing system based in LabVIEW™, running on a regular PC. The system acquires data continuously, and storage in files the events that result from the anomalies detected in the monitored power system. Several parameters related to power quality can be analysed through 6 different applications: “Scope and THD”, “Strip Chart”, “Wave Shape”, “Sags and Swells”, “Classical Values ” and “p-q Theory Values”. The acquired information can be visualized in tables and/or in charts. It is also possible to generate reports in HTML format. In this format, the reports can be sent directly to a printer, can be embedded in other software applications, or can be accessed through the Internet, using a web browser. It is also shown the potential of the developed system, name...
Integrated power quality monitoring system and the benefits of integrating smart meters
2013 International Conference-Workshop Compatibility And Power Electronics, 2013
Because of the regulatory requirements for the quality of electricity supply being imposed in many countries, power quality is ought to be an important aspect of smart distribution grids. In this context, there is a need for the Integrated Power Quality Monitoring System, which would integrate all the power quality data available from various systems of smart distribution grid, such as Power Quality Monitoring System, Automated Meter Reading/Advanced Metering Infrastructure, Supervisory Control and Data Acquisition, Electric Vehicle Management System etc. In this paper the power quality data management role of Integrated Power Quality Monitoring System is presented. Instead of accumulating all the historical data, the Integrated Power Quality Monitoring System should collect only data from the measurement devices in the affected area, needed for analysing the propagation and the source of the disturbances. The benefits and challenges of using smart meters for power quality monitoring are discussed in this paper in more detail. Also in this paper, the results of laboratory tests of power quality capability of a single smart meter are presented. The comparison of measurement between a power quality instrument and several smart meters for the example of one real medium voltage/low voltage network is presented, with the special focus on the distribution of voltage harmonics.
Power quality real-time Monitoring System for the new Brazilian standard
Proceedings of the 2010 Electric Power Quality and Supply Reliability Conference, 2010
This work deals with the development of a digital power quality meter to comply with the new standard which regulates the Power Quality requirements in Brazil. The purpose was to develop a low cost device able to monitor the main standard indices such as the steady state RMS voltage, harmonic distortion, voltage fluctuation, voltage unbalance, voltage sags and swells, and power supply interruptions in real-time. Through a cellular module the device meter can send measurements and data to a remote server, as well as be remotely controlled and configured. Other discussed point is the power quality indices of the new standard.
Towards an Intelligent System for Monitoring Electrical Energy Quality
2011
Electrical energy must be supplied in enough amount but with adequate quality. One of the components of electrical energy quality is the harmonic distortion. In this paper, we show an alternative way to measure distortion, mixing Data Envelopment Analysis (DEA) and Fourier Analysis. The technique here presented is specially useful for comparative analysis and is intended to be the basis for an intelligent system for monitoring electrical energy quality.