Automated integration of substation IED data to generate event reports for protection engineers
01 Oct 2009-pp 1-6
TL;DR: A complete system solution for automated integration of substation Intelligent Electronic Device data to generate a customized event report for protection engineers is presented in this paper.
Abstract: A complete system solution for automated integration of substation Intelligent Electronic Device (IED) data to generate a customized event report for protection engineers is presented in this paper. Detailed strategy for IED data processing and information exchange to meet the needs of protection engineers is proposed. An Implementation approach is discussed next followed by a simulation case used to generate a sample report format.
Citations
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TL;DR: A circuit breaker condition assessment model which combines the fuzzy set theory, the analytical hierarchy process (AHP), and evidential reasoning (ER) is proposed to demonstrate the effectiveness of the proposed model in assessing the CB operation conditions.
Abstract: This paper proposes a circuit breaker (CB) condition assessment model which combines the fuzzy set theory, the analytical hierarchy process (AHP) and evidential reasoning (ER). Four assessment factors, that is, (i) electrical characteristics, (ii) mechanical characteristics, (iii) insulation characteristics and (iv) miscellaneous factors, are selected as the condition parameters. A hierarchical assessment index system is constructed based on preventive tests data, intelligent electronic device monitoring data, maintenance data and operating environment. The inputted condition parameters indices are processed by the membership functions of a fuzzy distribution to obtain relative impairment grades which represent the relative grade of the CB condition towards the fault. The weights of the CB condition factors and indices are generated by the AHP based on experts’ interviews and feedbacks, and the final assessment is determined by ER according to the decision factors combined. An intelligent maintenance model is built with field examples to demonstrate the effectiveness of the proposed model in assessing the CB operation conditions.
39 citations
TL;DR: The design of a novel decision support system to achieve fault diagnosis and prognosis for DA schemes combines detailed data from a specific DA device with rule-based, data mining, and clustering techniques to deliver the diagnostic and prognostic functions.
Abstract: Distribution automation (DA) is deployed to reduce outages and to rapidly reconnect customers following network faults. Recent developments in DA equipment have enabled the logging of load and fault event data, referred to as “pick-up activity.” This pick-up activity provides a picture of the underlying circuit activity occurring between successive DA operations over a period of time and has the potential to be accessed remotely for off-line or on-line analysis. The application of data analytics and automated analysis of this data supports reactive fault management and post fault investigation into anomalous network behavior. It also supports predictive capabilities that identify when potential network faults are evolving and offers the opportunity to take action in advance in order to mitigate any outages. This paper details the design of a novel decision support system to achieve fault diagnosis and prognosis for DA schemes. It combines detailed data from a specific DA device with rule-based, data mining, and clustering techniques to deliver the diagnostic and prognostic functions. These are applied to 11-kV distribution network data captured from Pole Mounted Auto-Reclosers as provided by a leading U.K. network operator. This novel automated analysis system diagnoses the nature of a circuit’s previous fault activity, identifies underlying anomalous circuit activity, and highlights indications of problematic events gradually evolving into a full scale circuit fault. The novel contributions include the tackling of “semi-permanent faults” and the re-usable methodology and approach for applying data analytics to any DA device data sets in order to provide diagnostic decisions and mitigate potential fault scenarios.
34 citations
Dissertation•
01 Jan 2011
TL;DR: Thesis (Ph.D. as mentioned in this paper ) at the University of Adelaide, School of Electrical and Electronic Engineering, South Australia, Australia, has been published in the Australian Journal of Distributed Sensor Networks.
Abstract: Thesis (Ph.D.) -- University of Adelaide, School of Electrical and Electronic Engineering, 2011
1 citations
References
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Book•
01 Jan 1991
TL;DR: A common format for data files and exchange medium used for the interchange of various types of fault, test, or simulation data for electrical power systems is defined.
Abstract: A common format for data files and exchange medium used for the interchange of various types of fault, test, or simulation data for electrical power systems is defined. Sources of transient data are described, and the case of diskettes as an exchange medium is recommended. Issues of sampling rates, filters, and sample rate conversions for transient data being exchanged are discussed. Files for data exchange are specified, as is the organization of the data. A sample file is given.
187 citations
"Automated integration of substation..." refers background in this paper
...The corresponding recorded data for an event is listed in Table I....
[...]
TL;DR: An overview of substation integration and automation fundamentals and best practices is provided and focuses on best practices.
Abstract: The advent of power industry deregulation has placed greater emphasis on the availability of information, the analysis of this information, and the subsequent decision-making to optimize system operation in a competitive environment. Intelligent electronic devices (IEDs) being implemented in substations contain valuable information, both operational and nonoperational, needed by many user groups within the utility. The challenge facing utilities is determining a standard integration architecture that meets the utility's specific needs, can extract the desired operational and nonoperational information, and deliver this information to the users who have applications to analyze the information. This article provides an overview of substation integration and automation fundamentals and focuses on best practices.
125 citations
TL;DR: A solution for automated analysis of circuit breaker operation based on a record of waveforms taken from the circuit breaker control circuit by using a portable recorder and manually forcing an operation of the breaker.
Abstract: This paper describes a solution for automated analysis of circuit breaker operation. The analysis is based on a record of waveforms taken from the circuit breaker control circuit by using a portable recorder and manually forcing an operation of the breaker. This solution was driven by a need to perform the analysis in a more timely and consistent manner than what is available with existing technology. The solution is implemented using advanced wavelet transforms for waveform feature extraction and an expert system for decision making. A web-based database solution for storing and retrieving both the field-recorded and processed data is also implemented. The software is developed in two versions: for field (substation) as well as off-line (office) applications.
112 citations
"Automated integration of substation..." refers methods in this paper
...IEEE COMTRADE standard file format aiming at the information interchange between different IED types or IEDs from different vendors is used in this application [8, 9, 10]....
[...]
24 Jun 2007
TL;DR: In this paper, an automated circuit breaker monitoring system is proposed to monitor circuit breaker's control circuit, which makes it possible to track the circuit breaker switching sequences and make conclusions about their performance and final outcome.
Abstract: Circuit breakers are used in a power system to break or make current flow through power system apparatus. The action of circuit breakers changes switching topology of a power system. Reliable operation of circuit breakers is critical to the ability to reconfigure a power system and can be assured by regular inspection and maintenance. An automated circuit breaker monitoring system is proposed to monitor circuit breaker's control circuit. System is designed to enable deployment of system-wide applications that utilize the data recorded by the system. An application of system wide data analysis is demonstrated. It makes possible to track the circuit breaker switching sequences and make conclusions about their performance and final outcome. Lab and field evaluation of the designed system is performed and results are presented.
45 citations
TL;DR: In this article, the authors provide an overview of the possible new technical and business opportunities and benefits in developing advanced strategies for data integration and information exchange in the deregulated market place.
Abstract: The deregulation of the electric utility industry combined with development of advanced technology has raised many questions as how to make the power system operation more cost effective while preserving a high level of reliability and security. The utilities are developing different strategies for achieving this goal, enabling them to stay competitive. Many other new businesses are being formed to take advantage of the new opportunities in the marketplace.This article provides an overview of the possible new technical and business opportunities and benefits in developing advanced strategies for data integration and information exchange. It describes the efforts to discover new approaches to formulating a successful business strategy that would ensure competitiveness, with particular focus on the role of data integration and information exchange in developing new technical and business opportunities in the deregulated market place. In order to put the above discussion into better perspective, two new applications, namely a comprehensive fault and disturbance analysis and a novel two-stage state estimation, are presented as illustrative examples of how additional benefits can be obtained through assigning new business value to information and data.
26 citations