Estimation of Fault Resistance Using Fault Record Data

Xia, Bing; Wang, Yang; Vázquez, E.; Xu, Wilsun; Wong, Daniel; Tong, Michael

doi:10.1109/tpwrd.2014.2355041

Cited by 31 publications

(13 citation statements)

References 8 publications

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“…Several authors in the past have attempted to glean additional information from fault records [6][7][8][9][10]. Using event reports, authors in [11,12] have estimated the zerosequence line impedance of a two-terminal line.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the above background, the objective of this paper is to use relay event reports to comprehensively evaluate the relay performance and circuit parameters which are used in relay settings instead of just one or two parameters such as those presented in [8][9][10][11][12][13]. The contribution of this paper lies in demonstrating the above by analyzing two case studies in detail.…”

Section: Introductionmentioning

confidence: 99%

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Relay performance verification using fault event records

Das¹,

Ananthan

Santoso

2018

Prot Control Mod Power Syst

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Introduction: Event reports recorded by intelligent electronic devices (IEDs) such as digital relays and fault recorders during disturbances depict the status and system parameters of the power system. Incorrect relay settings and unknown system parameters can lead to relay misoperation but information regarding these are available by performing a comprehensive analysis of fault records. Hence, it is necessary to regularly make a comprehensive assessment of the functioning of the relay to ensure reliable operation. Case description: The objective of this paper is to demonstrate various aspects of evaluating relay performance and verifying circuit parameters which are used in relay settings using field data in two case studies. Discussion and Evaluation: While scrutinizing the relay's operation, this paper also presents key insights on verifying circuit parameters using the same relay event records. Conclusions: The lessons learned from the case studies presented in this paper will equip a protection engineer to inspect the operation of a relay during a transmission line fault, help gain a better understanding of the fault event and take possible actions to prevent future occurrence of similar events.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Relay performance verification using fault event records

Das¹,

Ananthan

Santoso

2018

Prot Control Mod Power Syst

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“…To determine the faulted location of transmission lines, several fault-location algorithms are proposed [2][3][4][5][6][7][8][9][10][11][12]. These algorithms can be divided into two categories.…”

Section: Introductionmentioning

confidence: 99%

“…These algorithms can be divided into two categories. In the first category, single-terminal voltage and current are used in fault-location algorithm [2][3][4][5][6]. In these algorithms, it may be difficult to accurately determine the locations of the faults, since these algorithms are usually valid under approximate assumptions, in the absence of data from the other terminal, existing algorithms generally have accuracy problems.…”

Section: Introductionmentioning

confidence: 99%

New Fault-Location Algorithm for Series-Compensated Double-Circuit Transmission Line

Cai

Jun

2020

IEEE Access

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This paper proposes a new fault location algorithm to accurately locate the faults of seriescompensated double-circuit transmission line and improve the stability of power system operation, which is not affected by fault types. The proposed algorithm is based on asynchronous voltage and current at both ends of the line, the pre-fault voltage and current are used to synchronize time. The six-sequence component transformation is introduced, and with the help of the phase-sequence selection rule, the proposed algorithm eliminates the non-linear impedance of metal oxide varistor (MOV). Simultaneously, to confirm the robustness of the algorithm, different fault types, different fault initial angles and different fault resistances are taken into account in the system simulation. Not only that, the influence of series capacitors (SCs) installation positions, line parameter errors, different sampling rates and measurement errors are also tested. In general, the proposed fault-location algorithm has excellent performance. PSCAD/EMTDC and MATLAB are used in simulation studies, the results show that the maximum estimated error of faultlocation does not exceed 1.8631%.

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“…Event reports recorded during a fault contain a plethora of information about the system condition [1]. Event reports have been traditionally used for performing fault analysis such as identifying the fault location [2][3][4][5] and fault resistance [6]. In recent times, they have been used for a variety of purposes such as evaluating relay and circuit breaker performance [7][8][9] and gleaning system parameters such as sequence impedance parameters of lines [10][11][12], estimating Thevenin impedance [13], verifying short circuit system model used for studies [14], and determining the exact fault inception and clearing times [15,16].…”

Section: Introductionmentioning

confidence: 99%

An Automated Technique for Extracting Phasors from Protective Relay’s Event Reports

et al. 2018

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Post-fault event report analysis is a crucial skill set for electric power engineers in the protection industry. This paper serves as a reference which elucidates the preprocessing procedures involved in transforming data present in event reports to phasors that can be used in various post-fault analysis application algorithms. The paper discusses key elements of this process such as interpreting the data and calculating voltage and current phasors from instantaneous sample values present in a fault record. A crucial component of event report analysis is choosing the appropriate time instant for calculating phasors for event report analysis. Conventionally, protection engineers manually perform event report analysis and arbitrarily select time instants after certain cycles of fault inception for this purpose. This approach prevents the process from being successfully automated. Furthermore, arbitrary selection of time instant does not utilize the entire fault data and may fail in several cases such as short time fault scenario and evolving fault scenario. For this purpose, this paper proposes an adaptive novel technique which utilizes the entire data present in the event report to select the most suitable time instant for event report analysis. The superiority of the proposed algorithm over conventional methods is demonstrated using three real-world scenarios.

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Estimation of Fault Resistance Using Fault Record Data

Cited by 31 publications

References 8 publications

Relay performance verification using fault event records

Relay performance verification using fault event records

New Fault-Location Algorithm for Series-Compensated Double-Circuit Transmission Line

An Automated Technique for Extracting Phasors from Protective Relay’s Event Reports

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