Study on single-phase adaptive reclosure scheme based on parameter identification

Jiale, Suonan; Shao, Wenquan; Song, Guobing

doi:10.1109/drpt.2008.4523698

Cited by 11 publications

(4 citation statements)

References 4 publications

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“…According to (10), the transmission line can be modelled as an equivalent inductance circuit during the internal fault, which is illustrated in Fig. 4.…”

Section: Internal Fault Model Of Transmission Linementioning

confidence: 99%

Transmission line pilot protection based on phase segregated model recognition

Jiale

Yang

Song

et al. 2009

IET Gener. Transm. Distrib.

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A new type of transmission line pilot protection based on phase segregated model recognition is presented, since the capacitance model and the inductance model are established, respectively, for the external fault and the internal fault. When the internal fault occurs, the capacitance model error is larger than the inductance model error. When the external fault occurs, the inductance model error is larger than the capacitance model error. By computing the model error, the actual state of transmission lines is obtained. Theoretical analysis and electromagnetic transients program (EMTP) simulation demonstrate that this novel protection principle is unnecessary to compensate the distribution capacitance current and has fast operation speed and good performance on resisting transition resistance and transient components.

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“…According to (10), the transmission line can be modelled as an equivalent inductance circuit during the internal fault, which is illustrated in Fig. 4.…”

Section: Internal Fault Model Of Transmission Linementioning

confidence: 99%

Transmission line pilot protection based on phase segregated model recognition

Jiale

Yang

Song

et al. 2009

IET Gener. Transm. Distrib.

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“…It can be seen from table2 that the differential current of faulty phase is below 1000A when the fault resistance exceeds 300 , the current differential relay can not be reliably trigged for such faults. Whereas the new criterion can tolerate large impedance, the setting set I in (9) can be set at a lower value, the new criterion still has high reliability when the set I is set at 250A. and the setting set Z could be set as (500-600) .…”

Section: Emtp Simulationsmentioning

confidence: 99%

“…From table 2 it can be obtained that the value of the imagine part of the integrated impedance of the faulty phase increases when the fault resistance increases. Under the condition that the fault resistance less than 400 , the max value of the imagine part of the integrated impedance is 389, the criterion illustrated in (9) can trip the faulty phase of the line reliably, so the new principle has stronger tolerance for high resistance fault.…”

Section: Emtp Simulationsmentioning

confidence: 99%

“…The methods at present to reduce the adverse influences of distributed capacitive current can be classified into three categories: shunt reactor, capacitive current compensation, compensation algorithm based on Bergeron line model [2]. And several new principles of current differential protection immunity to capacitive current have been proposed [3][4][5][6][7][8][9][10][11][12]. Unfortunately, most of these methods need the parameters of the line capacitance and shunt reactor to implement the compensation, thereby increase the complexity of protective relaying.…”

Section: Introductionmentioning

confidence: 99%

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A novel UHV transmission line pilot protection principle based on integrated impedance

Liu

Jiale

Duan

2010

10th IET International Conference on Developments in Power System Protection (DPSP 2010). Managing the Change

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Based on the ratio between the sum of two terminals voltages phasor of the transmission line and the sum of two terminals currents phasor of the same line, which is defined as integrated impedance in this paper, a new ultra high voltage (UHV) transmission line pilot protection principle is proposed. When an outer fault occurs, the integrated impedance reflect the capacitance impedance of the line, its imagine part is negative, and the absolute value of its imagine part is large, when an internal fault occurs, the imagine part of the integrated impedance of the faulty phase is either a positive figure or a negative figure with small mode, According to such a characteristic, whether there is fault in line or not can be distinguished. The new criterion does not need compensating capacitance current, can be applied in the line with or without shunt reactor. Also, it can be easily set. Simulation with EMTP data shows that the presented principle has high sensitivity and reliability.

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