Synchrophasor‐based system integrity protection scheme for an ultra‐mega‐power project in India

Kumar, Deepa S.; Savier, J S

doi:10.1049/iet-gtd.2018.5510

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…A differential power coefficient (DPC) is calculated to detect the difference between unstable and stable power swings in Reference 58. The RMS values of differential current and voltages for r samples are represented in Equation (38).…”

Section: Methods Used In Sips Implementationmentioning

confidence: 99%

“…The proposed method gives good results for symmetrical fault condition but during unsymmetrical faults, the method failed at higher fault resistance. To avoid mal‐operation of distance relay in large power plants, a DPC that differentiates the unstable and stable power swings is proposed in Reference 58. For the calculation of DPC, the PMUs provide the necessary voltage and current phasors.…”

Section: Sips Applicationsmentioning

confidence: 99%

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Recent trends in integrity protection of power system: A literature review

Rajalwal

Ghosh

2020

Int Trans Electr Energ Syst

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Background: An increase in the load demand has been forcing the electrical components to work near their allowable limits. The transformation of the power system in terms of technology and geographical stretch has imposed the necessity of employing advanced protection schemes in the system. The system integrity protection scheme (SIPS) has evolved as an effective measure with the gradual sprawl of the conventional grid with local measurements to a smart grid with wide-area measurement system. Aims: SIPS is a rapidly growing field in the power system and thus the study of its performance analysis, implementation methods, and applications is necessary. This paper provides a comprehensive overview of SIPS technology. Materials & Methods: In this paper, SIPS definition and classification are briefly discussed. SIPS normalization schemes that include load shedding, controlled islanding, generation rejection, ou-of-step prediction, relay settings are elaborated. To implement these normalization schemes, various methods such as index-based, optimization-based, WAMS based, EAC based, and ML-based are discussed and compared. Finally, a comparative assessment is framed based on SIPS applied for different power system issues such as transient instability, voltage instability, overloading, line contingency, protection security, etc. Results: It is observed that most of the proposed SIPS are implemented for improving transient stability. The preferred solution for implementing the SIPS by the researchers is load shedding. It is also observed that there is a lack of implementation of SIPS with renewable energy systems.

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Section: Methods Used In Sips Implementationmentioning

confidence: 99%

Section: Sips Applicationsmentioning

confidence: 99%

Recent trends in integrity protection of power system: A literature review

Rajalwal

Ghosh

2020

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

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“…But the delta based algorithm is no faster and another admittance based algorithm is all the time requires. A shutdown of an ultra-mega-power project (UMPP) in western region of India disturbed by the operation of protection relay during power swing is described in [21]. In this, a SIPS is invented to mitigate instability occurred by cause of unstable power swing.…”

Section: Introductionmentioning

confidence: 99%

Improvements in Existing System Integrity Protection Schemes Under Stressed Conditions by Synchrophasor Technology—Case Studies

Ballal

Kulkarni

2021

IEEE Access

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In this modern era, the power system is stigmatized by a conglomeration of ultra-high voltage AC and DC, multi-terminal DC, and extra-high voltage AC transmission networks. It consists of a large distribution network beyond the country along with traditional generation having Ultra Mega Power Plants (UMPP) and growing ingress of Renewable Energy Sources (RES). The System Integrity and Protection Schemes (SIPS) play a crucial role in preserving a secure and reliable grid and facilitate efficient grid control during severe power system contingencies. In this paper, the operational experiences of three important SIPS in India are presented. Based on a thorough analysis, the drawbacks of these SIPS are identified and an algorithm is proposed to overcome the drawbacks using synchrophasor technology. The performance and capability of the proposed algorithm are evaluated by simulation studies on the 39-bus New England system embedded with HVDC link in MATLAB. Simulation results consummated confirm the effectiveness of the scheme in preserving system integrity. Results are validated using Electrical Transient Analyzer Program (ETAP), which is a very powerful design and analysis tool and has an extremely user-friendly interface.

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Superseding Mal-Operation of Distance Relay Under Stressed System Conditions

Rajalwal

Ghosh

2020

Power Systems

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Synchrophasor‐based system integrity protection scheme for an ultra‐mega‐power project in India

Cited by 8 publications

References 21 publications

Recent trends in integrity protection of power system: A literature review

Recent trends in integrity protection of power system: A literature review

Improvements in Existing System Integrity Protection Schemes Under Stressed Conditions by Synchrophasor Technology—Case Studies

Superseding Mal-Operation of Distance Relay Under Stressed System Conditions

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