A Grid Information Resource for Nationwide Real-Time Power Monitoring (original) (raw)

A WEB-BASED SOLUTION FOR POWER QUALITY DATA MANAGEMENT

In this paper we present a web-based solution designed to convert (integrating an appropriate plugin) heterogeneous information provided by any type of power acquisition equipment into standard formats as PQDIF (Power Quality Data Interchange Format-IEEE® Std 1159.3-2003 standard). The power grid operators are interested for this kind of applications capable to convert huge volume of heterogeneous information into standard formats in order to be easily processed.

REAL TIME WEB BASED MONITORING OF POWER QUALITY PARAMETERS

Power quality (PQ) monitoring has become an essential service provided by utilities to their industrial and large commercial customers. This paper presents the development of a web based PQ monitoring instrument which incorporates real time monitoring of PQ parameters. Special software and hardware are considered in the system design for sampling, processing and transmitting of the real-time PQ events over Ethernet. The system hardware is based on a microcontroller which is programmed to sample real time voltage and current data, process the data using the fast Fourier transform and transmit the results to an end user through the web server. Experimental results prove that the microcontroller based system give good performance for real time PQ monitoring through the web.

Next-generation power information system

IET Conference Publications, 2009

Power monitoring systems (power quality monitors, digital fault recorders, digital relays, advanced controllers, etc.) continue to get more powerful and provide a growing array of benefits to overall power system operation and performance evaluation. Permanent monitoring systems are used to track ongoing performance, to watch for conditions that could require attention, and to provide information for utility and customer personnel when there is a problem to investigate. An important development area for these monitoring systems is the implementation of intelligent systems that can automatically evaluate disturbances and conditions to make conclusions about the cause of a problem or even predict problems before they occur. This paper describes the development of a Next Generation Power Information System that will provide an open platform for implementing advanced monitoring system applications that involve integration with many different data sources. The work builds on many years of experience with software for management and analysis of large power quality monitoring systems.

Online Monitoring Leads to Improve the Reliability and Sustainability of Power Grids

2019

The paper aims to address the concept of virtualized grid automation. This approach will be developed within a project by combining the application of data visualization techniques, sensor analysis tools, advanced energy measurement and ICT technologies to ensure the visibility and control of electricity grids. The development of advanced distributed processing solutions will solve time-critical issues.CEZ Romania wants to monitor online the distribution system for optimization of the grid operation at medium voltage (MV) and low voltage (LV). CEZ wants to have data from networks in real-timeand to be able to remotely optimize the operations. A set of advanced sensors will be deployed in the networks, connected using available communications networks to the service server located at the DSO premises. Appropriate control room displays will be connected to the services to display the results of the data analysis.We decided to start with an area with a high density of consumers, especi...

A web-based distributed measurement system for electrical power quality assessment

Measurement, 2010

Industries' systems are shifting toward almost entirely sophisticated electronic devices. Power Quality (PQ) analysis is getting importance for the economy because this equipment is highly sensitive to PQ events. Control and supervision of an industrial process has mainly been focused on the electrical protection, and little attention has been paid to the quality of the electrical supplies. Nowadays, measurement and communications systems have advanced to enable the installation of web-based sensors within a PQ assessment scenario. In this sense, this paper presents an innovative low-cost measurement system, as well as investigates the challenges and trends in the development of distributed PQ measurement systems using smart sensors.

The monitoring of power quality using low-cost smart Web sensors

IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276), 2002

ABSTRACT The problem of power quality (PQ) concerns the interference which can be present in the mains. These electromagnetic disturbances can cover a large interval of frequencies and can be present in industrial, domestic as well as commercial systems. As the main negative effects we can mention the high order harmonics, voltage fluctuations, flicker and disturbances with high slew-rates. The monitoring of the PQ of supply networks is then an issue of worldwide interest. It is frequently indispensable to measure PQ indexes in wide electric power plant or in industrial zones. To this aim a low-cost smart Web sensor has been designed and implemented to acquire, process and transmit data over a 802.3 network. It is organized in a multi microcontrollers system: the first one dedicated to the data acquisition and the other to data processing, dynamic HTML pages construction and TCP/IP stack management. Key features of the realised device are low-cost, data processing and remote communication capabilities, the possibility to provide date with any Internet browser. In the paper the main steps of design, implementation and characterization of the proposed system are given.

Extended Capabilities of the Power Quality Management System of the Power Distribution Grid for Data Exchange

MATEC Web of Conferences, 2018

The actual operation of the power distribution systems asks for high power quality (PQ). This fully justifies the investments in improving the metrics of power grid performances. But maintaining a PQ data infrastructure in a numerous locations is time-consuming and prohibitive. Moreover, each PQ monitor releases its own data format. These considerations justified using of a central PQ management system able to manipulate elliptical and time discontinuous information. The paper presents the characteristics of a webbased application designed to collect the data measured with different technologies of monitors and translate them into a common PQ data interchange format allowing comprehensive and long-duration grid operation assessment. The unitary formatted data generated by this customized software tool can be further processed by a proprietary software platform for PQ management owned by the network operator. The present version of this conversion tool is applicable only for one product family operating in the local power distribution grid. Further development is planned for integrating other two monitor vendors/families.

A Comprehensive Energy Monitoring Environment for District Energy Grid Systems

2017

By conducting active meter monitoring and performance analysis for the buildings and the plants at the main campus of the Georgia Institute of Technology, it is possible for campus facilities managers to achieve significant efficiency improvements. A key challenge, however, is gathering and making sense of the large volumes of utilities data. In response, a comprehensive web-based building and plant energy-monitoring environment is presented that collects data from multiple energy grids. From the gathered data, particular attention is given to heating, cooling, and ventilation to assess building and ultimately campus energy performance through various analytics. First, techniques for data gathering, organization, and filtering are described, followed by several novel metrics and ways of visualizing them via a comparative method. Data filtering and classification strategies have also been implemented into a framework capable of evaluating a fleet of buildings with respect to a data-driven or model-driven baseline. The resulting monitoring system is shown to reduce the number of variables that campus managers of campus utilities and facilities need to track and make it more obvious where energy efficiency opportunities exist across a large fleet of buildings. Implications and future extensions of the monitoring platform are discussed.

Taming the electric grid Continuous improvement of wide-area monitoring for enhanced grid stability

2008

Several catastrophic power blackouts during the last decade have exposed a need for early warning systems in the transmission system control centers. Network ManagerTM, ABB’s solution for Supervisory Control and Data Acquisition (SCADA) and Energy Management Systems (EMS) has, since 2008, offered wide-area monitoring and a new set of tools to get full control of the grid, even when it extends over thousands of kilometers.

Web Application for Power Grid Fault ManagementWeb application for power grid fault management

2016 6th International Conference on Intelligent and Advanced Systems (ICIAS), 2016

Smart power grids have been introduced in many developed countries and facilitate more efficient and economical utilization of generated power. The components of such a grid are usually remotely monitored and selected components are controlled either manually or through advanced software programs. However, many countries still rely on an Automated Meter Reading (AMR) network. AMR meters periodically report electrical energy consumption information to a centralized location and can also (since they contain batteries) transmit indications of power outage as well as power restoration. We make use of these meters to create a web application that examines and detects faults (blackouts, brownouts and surges) in an electrical grid. This application complements any existing sensor networks and software so that no new equipment needs to be implemented. Index Terms—Application Software; AMR; Fault Detection; Internet of Things; Smart Grids