A Fault Area Location Method in Distribution Network With DG

Kang, Zhengming; Tian, Aina; Zhe, Bai

doi:10.11591/telkomnika.v11i11.3548

Cited by 2 publications

(7 citation statements)

References 2 publications

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“…Each element adopts threephase asymmetrical impedance model in this paper. Among them, the modeling methods of main source, DG, transformer and line are not repeated here, which refer to the article [5]. Then the modeling methods of nonlinear load and the grounding resistance are shown below.…”

Section: The Establishment Of Nonlinear Three-phase Impedance Modelmentioning

confidence: 99%

“…As a result, many scholars proposed fault location methods suitable for distribution network with DG [2]- [6]. The article [5] proposed a fault location method based on fault feature matching and differential evolution algorithm for distribution network with DG which can achieve fault area location according to the search for the minimum fault feature value. On the basis of article [5], article [6] improved the method by adopting complex correlation Thevenin equivalent calculation and Strong Tracking Filter (STF).…”

Section: Introductionmentioning

confidence: 99%

“…The article [5] proposed a fault location method based on fault feature matching and differential evolution algorithm for distribution network with DG which can achieve fault area location according to the search for the minimum fault feature value. On the basis of article [5], article [6] improved the method by adopting complex correlation Thevenin equivalent calculation and Strong Tracking Filter (STF). STF can be adopted for real-time extraction of fundamental voltages' and currents' wave phase and amplitude, and fast track the power parameters' mutation.…”

Section: Introductionmentioning

confidence: 99%

“…The method of complex correlation Thevenin equivalent calculation takes the randomness of measurement data and DG into account to overcome measurement error caused by the uncertainty of the measurement data, so that the construction of the DG impedance model is more accurate. However, the fault location theories in article [5], [6] are all based on superposition principle which can only be suitable for linear systems.…”

Section: Introductionmentioning

confidence: 99%

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Research on Fault Location Method Based on Nonlinear Impedance Model

Liu¹,

Kang²,

Feng³

2015

JCM

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In modeling and location analysis, most traditional fault location methods do not consider about the existence of practical nonlinear model in distribution network, such as the nonlinearity of load and grounding resistor. Hence, the adopted model can't express the practical network, and the location results will lose practical meaning. Aiming at solving the question above, this paper proposes a fault area location method for distribution network with Distributed Generation (DG) which takes account of the nonlinearity; the load adopts quadric polynomial model; the grounding resistor adopts the experience formula model; the nonlinear equation constructed by nodal voltage equation will be solved out through quasi-newton algorithm, then the fault area can be located according to the definition of fault feature value. The simulation results in 10 kV distribution network model of the SINPOPEC West-Northern oil field suggest the validity of the proposed fault location method. 

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Section: The Establishment Of Nonlinear Three-phase Impedance Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research on Fault Location Method Based on Nonlinear Impedance Model

Liu¹,

Kang²,

Feng³

2015

JCM

Self Cite

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“…The three-phase unbalanced node admittance equation [8] of the distribution network with n nodes is shown in (2). The node impedance matrix and the node admittance matrix are mutually inverse matrix.…”

Section: A the Establishment Of Distribution Network Impedancementioning

confidence: 99%

Research on Fault Location Method in Distribution Network with DG Based on PADEA

Kang¹,

Liu²,

Feng³

2015

jcm

Self Cite

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For better solving the problem of multi-terminal fault location in the distribution network, this paper proposes a new fault location method based on Strong Tracking Filter (STF) and Parameter Adaptive Differential Evolution Algorithm (PADEA), which can be applied to asynchronous sampling systems. STF is adopted for real-time fundamental wave amplitudes' extraction of voltage and current. STF can achieve the fast track of power parameters' mutation, and also make the construction of the Distributed Generators' (DG) impedance model more accurate. On the basis of the establishment of impedance model and fault feature analysis, the fault feature value is defined by using only the amplitude of signals measured at the measurement points without introducing the phase angle, which can avoid the introduction of the sampling error radically. PADEA is adopted in the precise fault location part. The use of PADEA can improve the simulation efficiency and result accuracy. Simulation results in MATLAB/Simulink show that the method proposed in this paper has advantages of high accuracy and strong robustness.

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A Fault Area Location Method in Distribution Network With DG

Cited by 2 publications

References 2 publications

Research on Fault Location Method Based on Nonlinear Impedance Model

Research on Fault Location Method Based on Nonlinear Impedance Model

Research on Fault Location Method in Distribution Network with DG Based on PADEA

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