An Advanced Fault Data/Information Presentation in Power Systems

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.

2006 Annual Conference & Exposition Proceedings

Visualization methods are widely credited for simplifying presentation of difficult subjects as well as aiding cognition. Its use in the power engineering industry and education is enjoying significant growth. However, developing visualization systems for fundamental power system topics is a time-consuming task. This paper presents a series of student-created applications of visualization concepts in teaching a number of power system topics. The simple visualization schemes emanating from students' perspectives serve to both aid understanding of concepts as well as enable the instructor to systematically integrate the valuable inputs into instruction delivery.

Power Industry Computer Applications, 2001. PICA 2001. Innovative Computing for Power-Electric Energy Meets the Market. 22nd IEEE Power Engineering Society International Conference on, 2001

This paper describes the application of component-based methodology in developing a visual power system analysis tool. The component systems are built from public domain codes, commercial components and in-house developed components. Public domain codes and commercial components are reused to handle electrical diagramming, user and database access and analytical computation. Other components such as power system model and analytical analysis are developed in-house. The tool is built by architecting component systems, which play a role in drawing a one-line diagram, capturing database, and performing analysis such as load flow, symmetrical and unsymmetrical faults. By using this approach, a more flexible architecture of power system software consisting self-contained components, placed in independence layer is obtained. Changes in one component will not propagate to others. Therefore, the cost of development is reduced.

IEEE PES General Meeting, 2010

Nowadays, most substations are equipped with Intelligent Electronic Devices (IEDs) performing data collection. With the advancement of measurement techniques and growing availability of information captured by newly emerged IEDs such as Phasor Measurement Units (PMUs), it is imperative to integrate the various data sources with traditional Supervisory Control and Data Acquisition (SCADA)/Energy Management System (EMS) structure. This paper explores several possible solutions for data integration and its applications in power system. Also addressed is a set of new visualization tools to be used in power system control center. It shows that the merging of Remote Terminal Unit (RTU), PMU and other substation IED data could effectively improve the ability to detect cascades, efficiently process alarms, and accurately determine the location of faults. The resulted intelligent control center visualization tools could enrich monitoring capabilities and help operators maintain adequate situational awareness.

In proceeding of: 2004 CIGRE General Session, 2004

This paper addresses some new approaches to data integration and information exchange that are made possible due to the use of advanced Information Technology (IT). As a result, some traditional applications such as fault analysis can be significantly enhanced and automated. Paper first describes how the functional enhancement and automation of fault analysis may result in faster system restoration, better quality of power delivery, and more comprehensive preventive maintenance actions. The paper illustrates how in the competitive utility environment this leads to improved service and ultimately better customer satisfaction while maintaining and even reducing operational cost. Several examples related to automated fault analysis are described as follows: disturbance analysis, analysis of Circuit Breaker (CB) operation, and fault location analysis using sparse field data. INTRODUCTION Deregulation, liberalization, restructuring and privatization in the utility industry are simultaneously happening around the globe. They represent different approaches to making the utility industry more cost effective and responsive to customer needs. As a result, two important trends are recognized: the introduction of more automated functions and the use of more advanced information technology. The final aim is to provide better service to the customers and to reduce the operating cost. This paper illustrates how the existing fault analysis approach can significantly be enhanced through the use of advanced information technology [1]. In this context, the information technology relates to the technology for communications, processing, intelligent systems, computer networks, databases, user interfaces, etc. First, the application functions can be improved to include broader view of the analysis including data from multiple intelligent electronic devices (IEDs). This leads to a comprehensive data integration resulting in efficient data processing. Once the relevant information is extracted, it can be distributed to multiple users responsible for maintaining the quality and reliability of the energy supply service. All of this can easily be automated using information technology services embedded in the applications.

TPE-06 3rd International Conference on Technical and Physical Problems in Power Engineering , Ankara, TURKEY, 2006

In recent years. great interests have been directed to implementation of object oriented programming techniques into power system analysis. Consequently. a number of software packages ha,·e been developed and most of them were successfully commercialized. However these programs have been evolved according to needs of the industry and gradually become very sophisticated tools for usage in education and training. Meanwhile the complexity of commercial programs and relatively high prices have motivated studies on similar education tools at a reasonable cost and with less complicated structure. A number of educational packages are currently available for the academia and the industry. However most of them are expensive to afford for the educational institutions or still on the development stage. In this paper, a software that could be used as a graphic user interface for power flow analysis is presented. The developed program can be used for graduate and undergraduate education in teaching "power system analysis" particularly for load flow analysis. The program is downloadable through Internet.

IFAC Proceedings Volumes, 1977

2006 IEEE Power India Conference, 2006

The paper presents a new approach to Power System Automation, Protection, Local control, Operator interfaces, Communication, Remote control and Monitoring functions. The components of the system will have a better communication with each other capturing information through the local area network; transfer the information through out the network using LAN or different communication mediums instead of one sensor per each component as before. To achieve, a better system is required apart from different systems like protection, Communication, RTU's, IED's etc. called as Data acquisition system with out the perfect data communication system the components of the total system cant perform the right tasks at right time because of the disturbance in the collected. To overcome this problem a better Data Acquisition system has been designed with the efficient technology and with the perfect communication systems to transfer the data. The system is termed as "Computerized Data Acquisition System for Power System Automation". The system acquires the data from the power network (data acquisition) for monitoring. The software is developed to perform all the manipulations and the system parameters can be viewed in different forms (analog, digital, graphical).

IFAC Proceedings Volumes, 1995

Fault and Disturbance …

This paper describes a new solution for automated analysis of fault records captured by digital fault recorders (DFRs) and automated dissemination of event reports. The solution is based on the client/server architecture consisting of modules installed in substations, central office and user desktops. Substation-based modules perform DFR file conversion, signal processing, event analysis and fault location. Main part of the analysis is centered on the expert system whose knowledge base has been tested in a prototype system over the last five years. Server-based modules provide centralized DFR data archiving and event reports dissemination. Main software modules on the server are the database, report parser and Web site. The installation of the system in Reliant Energy HL&P's substations is underway. Initial field-testing shows that functional requirements are completely met.