Application of Super Conducting fault current limiter in Indian grid

Kodle, S.; Padmini,; Bahirat, Himanshu J.; Khaparde, S.A.; Lubicki, Piotr; Dabeer, V.

doi:10.1109/icpes.2016.7584226

Cited by 3 publications

(5 citation statements)

References 5 publications

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“…The utility is exploring the option of SCFCL to limit the short‐circuit current levels at its transmission grade substation, which is connected to various transmission lines. The studies presented in [12] resulted in a particular location and size of the SCFCL to limit the short‐circuit current through the critical branch at the substation. The location of instrument transformers is considered as per the common practise of the utility.…”

Section: System Descriptionmentioning

confidence: 99%

“…A simplified test system is derived from the system defined in [12]. This test system is defined such as to incorporate diverse cases to evaluate the effect of SCFCL on distance protection.…”

Section: System Descriptionmentioning

confidence: 99%

“…The location of instrument transformers is considered as per the common practise of the utility. A simplified test system is derived from the system defined in [12]. This test system is defined such as to incorporate diverse cases to evaluate the effect of SCFCL on distance protection.…”

Section: Test Systemmentioning

confidence: 99%

“…The value of the shunt reactor in an SCFCL is derived for the required reduction in fault current levels. The method proposed in [12] is used to derive the value of shunt reactor. In this simulation, the SCFCL shunt reactor is sized to reduce the short-circuit levels at substations from 39 to 32 kA.…”

Section: Sc Fault Current Limitermentioning

confidence: 99%

See 3 more Smart Citations

Line distance protection in the presence of SCFCL

Thute¹,

Bahirat²,

Khaparde³

et al. 2019

IET Generation Trans & Dist

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There is an increase in fault current levels seen by utilities due to grid expansion and the addition of new resources. Installation of superconducting fault current limiter (SCFCL) at transmission voltage levels is being explored to reduce the fault levels. The SCFCL limits the fault current by inserting an additional impedance in the network, which may impact the protection system. This paper discusses the impacts of SCFCL on the operation of line distance protection. It is observed that operation of SCFCL may not impact all the distance relays in the substation and near-by substation in the same way, thus a boundary definition method is proposed in this study to identify the affected relays. The definitions of boundary condition based on steadystate fault current values and critical current of the SCFCL are proposed in this study. The impact of SCFCL on the line distance relays which manifest as underreaching of the relays and may also lead to coordination issues and erroneous operation. An implementation method for mitigation which is compatible with existing substation relays is proposed and demonstrated to ensure proper operation of the relays. The proposed mitigation ensures that the system integrity is maintained during faults.

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Section: System Descriptionmentioning

confidence: 99%

Section: System Descriptionmentioning

confidence: 99%

Section: Test Systemmentioning

confidence: 99%

Section: Sc Fault Current Limitermentioning

confidence: 99%

See 2 more Smart Citations

Line distance protection in the presence of SCFCL

Thute¹,

Bahirat²,

Khaparde³

et al. 2019

IET Generation Trans & Dist

Self Cite

View full text Add to dashboard Cite

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“…Therefore, the stresses caused by excessive fault currents led to high mechanical, electrical, and thermal instabilities of electric networks (Lee et al, 2008). Consequently, the electrical apparatus might be damaged and cause a partial blackout or even a major blackout if the existing switch gears are not upgraded (Anderson and Fouad, 2003), (Grigsby, 2012), (Miyashita et al, 2005;Kodle et al, 2016;Glover et al, 2017). These changes are the main concerns for the transmission system operators because an increase in the fault levels negatively impacts the power system in terms of security and reliability (Ravindranath and Chander, 1977).…”

Section: Introductionmentioning

confidence: 99%

Enhancing transient stability of power systems using a resistive superconducting fault current limiter

et al. 2023

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The electricity demand keeps increasing with development and time, which leads to the need to install more generating units in the grid. Therefore, the fault current levels will rise above the limits of the electrical equipment, particularly when the electric grid becomes meshed and interconnected with neighboring networks. Consequently, the electrical equipment needs to be replaced or use a method that will decrease the fault current to be within the permissible boundaries. The existing solutions such as neutral impedance, current limiting reactor (CLR), and bus splitting have negative impacts on the electric grid. The superconducting fault current limiter (SFCL) appears to be a promising solution. In this paper, the resistive SFCL is proposed to enhance the stability of the interconnected power system. The two-area system is used as a case study for the interconnected power system. Also, the optimal value and locations of the resistive SFCL are analyzed. The results show that the system will remain stable without tuning the power system stabilizer (PSS).

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