Improved digital algorithm for adaptive reclosing for transmission lines with shunt reactors

Luo, Xunhua; Huang, Chun; Jiang, Yaqun

doi:10.1049/iet-gtd.2015.1078

Cited by 37 publications

(12 citation statements)

References 17 publications

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“…Identification time in Table 3 was defined as the time interval from a fault occurring to TFI conclusion drawing, and reclosing time in Table 3 was defined as the time interval from simulation experiment starting to reclosing command sending. [16] 50 0 70 yes yes [16] 100 0 70 yes yes [16] 0 100 70 no no [16] 50 100 70 yes yes [16] 100 100 70 yes yes [16] 0 0 80 no no [16] 50 0 80 yes yes [16] 100 0 80 yes yes [16] 0 100 80 no no [16] 50 100 80 yes yes [16] 100 100 80 yes yes [22] 0 0 70 no no [22] 50 0 70 yes yes [22] 100 0 70 yes yes [22] 0 100 70 no no [22] 50 100 70 yes yes [22] 100 100 70 yes yes [22] 0 0 80 no no [22] 50 0 80 yes yes [22] 100 0 80 yes yes [22] 0 100 80 no no [22] 50 100 80 yes yes [22] 100 According to the simulation results in Table 3, the following conclusions can be drawn: (i) Validity and feasibility of the proposed TFI method and ASPAR scheme for wind-powered outgoing lines were verified by those twenty-four simulation results in Table 3. (ii) In all those twenty-four circumstances, including different fault locations, transition resistances, and outgoing line compensation rates, the proposed ASPAR scheme can identify transient fault accurately and rapidly (within 0.1 s), and reclose the outgoing line successfully.…”

Section: Simulation Results Of Aspar Scheme For Wind-powered Outgoingmentioning

confidence: 99%

“…According to [16,22] and simulation results shown in Figs. 6-15, Table 2 lists the TFI judgments results of TFI methods in [16,22] and this paper in different fault locations, transition resistances and outgoing line compensation degrees to compare adaptability of these three TFI methods on a same windpowered outgoing lines. Table 2 is a summary of those comparisons depicted in Figs.…”

Section: Comparison Of Two Existing Tfi Methods and The Proposed Tfi mentioning

confidence: 99%

“…the shunt reactor current, were proposed to distinguish transient faults from permanent ones [21]. For transmission lines with shunt reactors, as the equivalent circuits remarkably differ before and after fault extinction, a free-oscillation component (FOC) emerges only after fault extinction to form a beat frequency waveform with fundamental frequency component (FFC), this beat frequency characteristics of the faulty phase voltage and current were also utilised for TFI [22,23]. Thus, given that these TFI methods can reclose conventional power transmission lines with shunt reactors after fault extinction, researchers must assess whether these methods can avoid reclosing to a fault when applied on windpowered outgoing lines with shunt reactors.…”

Section: Introductionmentioning

confidence: 99%

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Online parameter determination based adaptive single‐phase reclosing scheme for wind‐powered outgoing lines with shunt reactors

Chao

2019

IET Renewable Power Generation

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As the only power output channel of wind farms, wind-powered outgoing lines carry the risk of reclosing to faults as an applied single-phase reclosing scheme recloses the outgoing line after a fixed time without distinguishing transient and permanent faults. Although various transient-fault identification (TFI) methods were proposed for conventional power transmission lines with shunt reactors, they can be hardly utilised on wind-powered outgoing lines with shunt reactors due to the influence of outgoing line complex working conditions and wind farms inconsistent output power. In this study, reactive power was calculated using the instantaneous power algorithm to obtain the equivalent reactance of the outgoing line faulty phase shunt reactor. Then, a TFI method for the outgoing lines with shunt reactors based on online parameter determination was proposed, a relevant adaptive single-phase auto-reclosing (ASPAR) scheme was established. Finally, the validity and feasibility of the proposed TFI method and ASPAR scheme were verified by conducting simulation experiments on the software PSCAD/ EMTDC. The experiments confirmed that the proposed ASPAR scheme can achieve immunity to changes in fault location and transition resistance, and are therefore suitable for inconsistent output power of wind farms and complex working conditions of outgoing lines.

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Section: Simulation Results Of Aspar Scheme For Wind-powered Outgoingmentioning

confidence: 99%

Section: Comparison Of Two Existing Tfi Methods and The Proposed Tfi mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Online parameter determination based adaptive single‐phase reclosing scheme for wind‐powered outgoing lines with shunt reactors

Chao

2019

IET Renewable Power Generation

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“…For calculating FFT and DFT of a signal [16,66] on the basis of data acquisition. Some AI techniques are also discussed.…”

Section: N Knmentioning

confidence: 99%

A review of single phase adaptive auto-reclosing schemes for EHV transmission lines

Khan

2019

Prot Control Mod Power Syst

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Statistics shows that transients produced by lightning or momentary links with external objects, have produced more than 80% of faults in overhead lines. Reclosing of circuit breaker (CB) after a pre-defined dead time is very common however reclosing onto permanent faults may damage the power system stability and aggravate severe damage to the system. Thus, adaptive single-phase auto-reclosing (ASPAR) based on investigating existing electrical signals has fascinated engineers and researchers. An ASPAR blocks CB reclosing onto permanent faults and allows reclosing permission once secondary arc is quenched. To address the subject, there have been many ASPARs techniques proposed based on the features trapped in a faulty phase. This paper presents a critical survey of adaptive auto-reclosing schemes that have hitherto been applied to EHV transmission lines.

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“…TFI methods based on the beat‐frequency phenomenon . These methods notice the emergence of a free‐oscillation component after fault extinction, and existence of this free‐oscillation component can cause obvious difference in both magnitude and spectrum analysis.…”

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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Improved digital algorithm for adaptive reclosing for transmission lines with shunt reactors

Cited by 37 publications

References 17 publications

Online parameter determination based adaptive single‐phase reclosing scheme for wind‐powered outgoing lines with shunt reactors

Online parameter determination based adaptive single‐phase reclosing scheme for wind‐powered outgoing lines with shunt reactors

A review of single phase adaptive auto-reclosing schemes for EHV transmission lines

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

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