Integrated Modelling Environment: a platform for dynamic protection modelling and advanced functionality

McDonald, J.R.; Burt, Graeme; Goody, Jack; Gwyn, B.

doi:10.1109/tdc.1999.755386

Cited by 22 publications

(12 citation statements)

References 9 publications

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“…The developed algorithm can be used in the simulation of relay protection [2][3][4][5][6][7][8], including power system simulator [9][10][11][12]. The implementation of the algorithm will allow detailed analysis of the operation of the ADC at each of its stages, while varying its parameters.…”

Section: Discussionmentioning

confidence: 99%

Mathematical simulation of analog-to-digital converter

2017

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Abstract. Numerical relay protection devices (NRP) are a promising area for the development of protection equipment for electric power systems. For its development, research and, in some cases, setting mathematical models are used. At the same time, the converting part of the NRP, which realizes the analog-to-digital conversion (ADC) of the analog input signal to the digital one, with which the microprocessor of the NRP works directly, is often ignored in models. The purpose of this work is to study the characteristics and parameters of the ADC, as well as to evaluate its impact on the operation of the ADC itself and need to take into account those or other characteristics in the simulation. To develop the ADC model, the C programming language was used. The ADC model is takes into account the cutoff frequency of the analog signal, sampling period, and number of samples required. The characteristics and parameters of the ADC are studied, their effect on the operation of the ADC is estimated. The result of this study -the ADC must be modeled as completely as possible, since its operation depends on the correct functioning of the NRP algorithm.

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Section: Discussionmentioning

confidence: 99%

Mathematical simulation of analog-to-digital converter

2017

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“…The simulated results for a variety of fault scenarios have been recorded and injected into both a validated dynamic model of a relay (relay 1) [14] and an actual distance protection relay (relay 2). The setting for both "relays" are identical.…”

Section: Case Studiesmentioning

confidence: 99%

A systematic evaluation of network protection responses in future converter-dominated power systems

Li¹,

Booth²,

Roscoe³

et al. 2016

13th International Conference on Development in Power System Protection 2016 (DPSP)

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This paper illustrates how converter interfaces, used to connect renewable energy sources, HVDC links and infeeds to the power system, may bring significant changes to the behaviour of protection systems in the future. A converter model, capable of providing adjustable fault responses, is used to investigate the response of power system protection to a range of fault conditions. Different scenarios have been simulated by applying different types of faults at different location of the transmission system with a variety of different converter response types. A dynamic, verified, relay model and a hardware relay device have been injected with the simulated results to ascertain network protection performance.A summary of results are presented and it is shown that, when the system is dominated by converter-interfaced sources (especially where the sources are modeled as being unable to provide "fast" and "high" fault currents), the responses of traditional protection systems could be delayed, lose discrimination, e.g. by tripping with a zone 2 delay for a zone 1 fault, or may be completely unable to detect faults at certain locations within the system. The outcomes of the paper and further work should act as a guide for on-going investigations and assist in informing the specification of national grid codes and related work.

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“…the failure of a trip relay to operate or a missing or late receipt of an inter-trip signal. The MBR engine supports the use of various types of protection relay model, including the detailed dynamic protection models described in [17]. • A fault record interpretation expert system: Also part of the MBR toolset [9], the fault record interpretation expert system is a rule-based system with two functions: it converts fault records from the COMTRADE format to the format required by the MBR engine and performs some additional interpretation by classifying the type of disturbance, e.g.…”

Section: A Legacy Intelligent Systemsmentioning

confidence: 99%

An automated fault analysis system for SP energy networks: Requirements, design and implementation

Napier

Davidson

McArthur

et al. 2009

2009 IEEE Power &Amp; Energy Society General Meeting

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The proliferation of monitoring equipment on modern electrical power transmission networks is causing an increasing amount of monitoring data to be captured by transmission network operators. Traditional manual data analysis techniques fail to meet the analysis and reporting requirements of the utilities which have chosen to invest in monitoring. The volume of monitoring data, the complexities in analysing multiple related data sources and the preparation of internal reports based on that analysis, render timely manual analysis impractical, if not intractable.In 2006, the authors reported on the first online trials of the protection engineering diagnostics agents (PEDA) system, an automated fault diagnosis system which integrated legacy intelligent systems for the analysis of SCADA and digital fault recorder (DFR) data in order to provide automatic post fault assessment of protection system performance.In this paper the authors revisit the requirements of the TNO where PEDA was trialled. Based on a new formal specification of requirements carried out in 2008, the authors discuss the requirements met by the current version of PEDA and how PEDA could be augmented to meet these new requirements highlighted in this latest analysis of the utilities' requirements.Index Terms-decision support systems, fault diagnosis, intelligent systems, knowledge-based systems, power transmission protection, multi-agent systems.

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Integrated Modelling Environment: a platform for dynamic protection modelling and advanced functionality

Cited by 22 publications

References 9 publications

Mathematical simulation of analog-to-digital converter

Mathematical simulation of analog-to-digital converter

A systematic evaluation of network protection responses in future converter-dominated power systems

An automated fault analysis system for SP energy networks: Requirements, design and implementation

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