Characteristic and Surge Impedance Variation Impact on Transmission Line Performance

Rawa, Muhyaddin

doi:10.11591/ijece.v8i4.pp2602-2607

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Voltage in some places at the ends of distribution lines can reach critical levels, especially in rural areas, as they are far from substations. Another factor that contributes to this phenomenon is the radial predominance of distribution networks, with no interconnections with other distribution systems, as occurs in ring systems (Rawa, 2018).…”

Section: Introductionmentioning

confidence: 99%

Voltage Regulation in Rural Networks With Distributed Generation

et al. 2023

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The increase in distributed generation (DG) interferes with the energy distribution system, which may present low voltages due to voltage drops and high voltages due to the insertion of distributed generation, resulting from renewable energy sources in rural areas. These voltage levels must be controlled to comply with the limits imposed by the distribution rules and procedures (PRODIST). This study aims to evaluate the voltage rise caused by DG, simulating three DG insertion scenarios, as well as simulate strategies to correct these voltage levels, such as the limitation of the active power supply, the reactive supply by the consumer and the utility, and the installation of on-load tap changers. The simulations were performed using the MATLAB ® program, more specifically the PSAT toolbox. Correction techniques were simulated using the active power supply limitation method, the reactive power supply method by consumers, and the voltage regulator process once the voltage rise effect was identified. The first two proved to be ineffective in this case, while the last one meets the voltage levels required by the National Electric Energy Agency.

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Section: Introductionmentioning

confidence: 99%

Voltage Regulation in Rural Networks With Distributed Generation

et al. 2023

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“…Therefore, a rapid and precise fault location would be of great interest to power utility companies that would be able to restore quickly and accurately the well-functioning of transmission lines by fixing the problems identified at the fault points [1]. Among the most used methods in fault localization, there is the one based on the fault impedance and it uses essentially the RMS values of voltages and currents at the fundamental frequency [2][3][4][5][6]. This method is simple, but its precision depends on the assumptions made about the relationship between the RMS values of voltages and currents at the fault point and those at the end of the transmission line.…”

Section: Introductionmentioning

confidence: 99%

Traveling wave based fault location for power transmission lines using morphological filters and clarke modal components

Khoudry¹,

Belfqih²,

Boukherouaa³

et al. 2020

IJECE

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This article presents a fast and accurate fault location approach for power transmission lines based on the theory of traveling waves. In fact, when faults occur, they give rise to transient voltages and currents that propagate at a speed close to that of light along the transmission line as traveling waves. Moreover, according to the superposition theorem, each of these transients is a combination of a steady-state quantity and an incremental quantity. These transient signals measured at both ends of the line are first transformed to the Clarke (0-α-β components) components in order to categorize the type of faults, and then multi-scale morphological gradient filters are used to extract equivalent quantities to the incremental quantities to form what are called characteristic signals. These latter will be used to identify the fault location according to the proposed algorithm.

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Characteristic and Surge Impedance Variation Impact on Transmission Line Performance

Cited by 2 publications

References 2 publications

Voltage Regulation in Rural Networks With Distributed Generation

Voltage Regulation in Rural Networks With Distributed Generation

Traveling wave based fault location for power transmission lines using morphological filters and clarke modal components

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