Secondary Arc Current Analysis of an Untransposed EHV/UHV Transmission Line With Controllable Unbalanced Shunt Reactor

Ma, Qiang; Ban, Liangeng; Xiang, Zhengrong

doi:10.1109/tpwrd.2014.2388224

Cited by 25 publications

(3 citation statements)

References 10 publications

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“…Assuming that L 0 = 0.5 H, C s = 0.05 µF, α = 0.4, and γ = 0.44, these parameters are substituted into Equation (17). The RRRV of the transient recovery voltage is 1.19 kV/µs from the calculation, and the simulation value is 1.24 kV/µs, which is generally consistent with the calculated result.…”

Section: Theoretical Computation For Out-of-phase Faultssupporting

confidence: 72%

Circuit Breaker Rate-of-Rise Recovery Voltage in Ultra-High Voltage Lines with Hybrid Reactive Power Compensation

et al. 2018

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Abstract:With the development of ultra-high voltage (UHV) technology, hybrid reactive power compensation (HRPC) will be widely applied in the future. To study the mechanism by which HRPC influences the characteristics of circuit breakers in UHV transmission lines, this paper establishes an improved electromagnetic coupling transmission line model for out-of-phase and short-line faults. Based on the HRPC equivalent model, a simulation analysis was performed on the characteristics of the circuit breaker when a fault occurs. Using an equivalent lumped parameter circuit, the rate-of-rise of recovery voltage (RRRV) computational formula was deduced and computed. The RRRV variation in the circuit breakers in the system, with and without HRPC, was obtained. Given the circuit breaker interruption characteristics, the research results provide an analysis foundation and a theoretical basis for optimizing the HRPC parameters and selecting the arrangements of circuit breakers in an UHV transmission line.

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Section: Theoretical Computation For Out-of-phase Faultssupporting

confidence: 72%

Circuit Breaker Rate-of-Rise Recovery Voltage in Ultra-High Voltage Lines with Hybrid Reactive Power Compensation

et al. 2018

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“…The vast body of research devoted to SPAR-related problems has been obviously centered on long EHV and UHV overhead lines, which are usually provided with shunt compensation [30]- [39]; very few contributions deal with the issue of secondary arcs and SPAR in EHV MLs [40], [41], [42]. In particular, [42] showed the increase of secondary arc current and the risk of harmonic resonance in a 400 kV-50 Hz ML, whereas [41] presented the transient simulation of a ML SPAR cycle.…”

Section: Introductionmentioning

confidence: 99%

Single-Pole Autoreclosure in uncompensated EHV AC mixed overhead-cable lines: A parametric time-domain analysis

Gatta

Geri

Graziani

et al. 2022

Electric Power Systems Research

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“…Consequently, wind power‐generated electric power is frequently delivered through long‐distance, high‐voltage transmission lines. Shunt reactors are often used on these lines to compensate for their distribution capacitance . Wind farms in China are typically built at the end of a grid; hence, a wind power outgoing line (WPO line) may be the only power transmission channel to the grid.…”

Section: Introductionmentioning

confidence: 99%

Faulty phase active power characteristics‐based adaptive single‐phase reclosing schemes for shunt reactors‐compensated wind power outgoing line

Chao

Fan³

et al. 2019

Wind Energy

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This paper proposes two novel adaptive single‐phase auto‐reclosing (ASPAR) schemes for shunt reactors‐compensated wind power outgoing (WPO) line. After extinction of a fault on a single phase‐tripped WPO line, due to the existence of shunt reactors and distributed capacitors, a free frequency component will emerge in the tripped faulty phase, which will make faulty phase active power calculated with instantaneous power algorithm have a bigger magnitude and more frequency components. According to these characteristics, transient fault identification (TFI) methods based on active power root mean square (RMS) value and twisty beat frequency were put forward. Subsequently, in view of abovementioned TFI methods, ASPAR schemes for a shunt reactors‐compensated WPO line based on faulty phase active power characteristics were established. Simulation experiments, which were conducted using the software PSCAD/EMTDC, verified that the proposed ASPAR schemes can distinguish transient faults from permanent ones rapidly and reliably. The experiments also proved that the proposed adaptive single‐phase reclosing schemes can minimize the influence of changes in fault location and transition resistance and, thus, are suitable for the inconsistent output power of a wind farm and the complex working condition of an outgoing line.

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Secondary Arc Current Analysis of an Untransposed EHV/UHV Transmission Line With Controllable Unbalanced Shunt Reactor

Cited by 25 publications

References 10 publications

Circuit Breaker Rate-of-Rise Recovery Voltage in Ultra-High Voltage Lines with Hybrid Reactive Power Compensation

Circuit Breaker Rate-of-Rise Recovery Voltage in Ultra-High Voltage Lines with Hybrid Reactive Power Compensation

Single-Pole Autoreclosure in uncompensated EHV AC mixed overhead-cable lines: A parametric time-domain analysis

Faulty phase active power characteristics‐based adaptive single‐phase reclosing schemes for shunt reactors‐compensated wind power outgoing line

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