A Case Study of Mutual Impedance Effect in Parallel Transmission Lines Under Maintenance Condition

Mangunkusumo, Kevin Gausultan Hadith; Kusuma, Aristo Adi; Munir, Buyung Sofiarto

doi:10.1109/iciteed.2018.8534740

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…When N -1 breakdown occurs in power network, most of power on the breaking line will be transferred to other transmission lines which belongs to the same power supply area/load area as the breaking line, that is, parallel transmission lines of the breaking line [19]. However, for largescale power network, there are many parallel transmission lines with outage line.…”

Section: Correlation Theory a Equal Phase Angle Principlementioning

confidence: 99%

“…According to the revised regulations, the transmission lines are divided to determine the attribution area of the transmission line. Step2 Assuming N -1 disconnection fault, the GEI index is calculated by ( 13) - (19) to evaluate the equilibrium degree of power flow impact distribution. Step3 The redundancy index for evaluating the impact of transmission line interruption on the system is calculated by ( 20) - (22).…”

Section: Comprehensive Evaluation Modelmentioning

confidence: 99%

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Identifying the Key Transmission Lines Considering the Power Flow Impact Force

Kang

et al. 2019

IEEE Access

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A method is proposed for identifying the key transmission lines of a power grid. First, based on the theory of equal phase angle line and electrical distance, the phase angle partition areas are defined to partition the transmission lines. A generalized entropy index of the power flow growth rate is defined to evaluate the distribution of the degree of imbalance of the power flow impact after a transmission line outage. Second, based on the Katz-Bonacich Center theory, an index for evaluating the importance of the location of transmission lines is defined. Finally, the cloud model is used to transform the evaluation data information. The comprehensive evaluation results are presented in the form of cloud maps. The correctness of this method is verified by simulation. INDEX TERMSPower system, equal phase angle line, generalized entropy index, Katz-Bonacich centrality, cloud model.

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Section: Correlation Theory a Equal Phase Angle Principlementioning

confidence: 99%

Section: Comprehensive Evaluation Modelmentioning

confidence: 99%

Identifying the Key Transmission Lines Considering the Power Flow Impact Force

Kang

et al. 2019

IEEE Access

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Calculation and Analysis of Micro-Shock Energy of Line Maintenance Personnel in High Electric Field

Pan

2020

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)

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Impedance Compensation Method Considering Unbalanced Ground Fault with SFCL in a Power Distribution System

Cho

Lim

2022

Energies

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As the energy demand increases due to the developing electric power industry, the fault current becomes higher during the fault time. A new approach is needed to reduce a fault current in a power distribution system, since the fault currents influence other protective devices’ operation. To decrease the fault current, the superconducting fault current limiter (SFCL) has been suggested. The SFCL has no power loss with no effect on a power distribution system because the SFCL impedance only occurs during the fault time. However, the SFCL can reduce the fault current; it causes the trip time delay of the over current relay (OCR). Compensation methods for the balanced fault have been invented in previous studies, while research on unbalanced ground fault compensation are few. In this paper, the compensation method configured with impedance components of a power distribution system is introduced to eliminate the influence of the SFCL on the OCR. In addition, the components of the SFCL impedance are removed from the characteristic equation of the OCR. To verify the effect of the impedance compensation method, fault simulations are carried out in 3 types of ground faults using PSCAD/EMTDC.

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A Case Study of Mutual Impedance Effect in Parallel Transmission Lines Under Maintenance Condition

Cited by 3 publications

References 3 publications

Identifying the Key Transmission Lines Considering the Power Flow Impact Force

Identifying the Key Transmission Lines Considering the Power Flow Impact Force

Calculation and Analysis of Micro-Shock Energy of Line Maintenance Personnel in High Electric Field

Impedance Compensation Method Considering Unbalanced Ground Fault with SFCL in a Power Distribution System

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