Parameter‐free fault location for transmission lines based on optimisation

Davoudi, Masoud; Sadeh, Javad; Kamyab, Ebadollah

doi:10.1049/iet-gtd.2014.0425

Cited by 49 publications

(24 citation statements)

References 35 publications

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“…The during-fault voltage at bus r and the fault current are calculated following eqs (6) and (5). The fault location can then be solved based on eq.…”

Section: Cases When the Faulted Line Is A Double-circuit Linementioning

confidence: 99%

“…Precise and fast fault location can facilitate maintenance, and reduce the outage time and accelerate power system restoration [1,2]. Numerous algorithms have been developed in the past to estimate fault location in the transmission system [1][2][3][4][5][6][7][8][9][10][11][12][14][15][16]. Most of the existing fault location algorithms assume the fault types are stationary over fault periods.…”

Section: Introductionmentioning

confidence: 99%

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Accurate Location of Evolving Faults on Transmission Lines Using Sparse Wide Area Measurements

Jiao

Liao

2018

International Journal of Emerging Electric Power Systems

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In electric power systems, not all fault conditions remain unchanged during faults. An evolving fault has one characteristic initially and changes to a different condition subsequently. Locating evolving faults is challenging due to the change in fault type shortly after the fault initiation. This paper presents a new approach for estimating the locations of evolving faults on transmission lines. By using sparse wide area voltage measurements, this method is able to accurately locate evolving faults without requiring measurements from either end of the faulted line. There is no need to detect whether a fault is an evolving fault or not. Fault type information is not a necessity either, and the change of fault phases does not affect the estimation accuracy. In addition, the algorithm is applicable to both single-circuit and double-circuit lines, and the transmission lines can be either transposed or untransposed. Distributed parameter line model is adopted to fully consider the shunt capacitances of the transmission lines. Electromagnetic Transient Program (EMTP) is employed to simulate transmission system, and quite accurate results have been achieved.

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“…The during-fault voltage at bus r and the fault current are calculated following eqs (6) and (5). The fault location can then be solved based on eq.…”

Section: Cases When the Faulted Line Is A Double-circuit Linementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accurate Location of Evolving Faults on Transmission Lines Using Sparse Wide Area Measurements

Jiao

Liao

2018

International Journal of Emerging Electric Power Systems

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“…In fact, some of them are proposed in previous studies. [4][5][6][7][8] However, these methods are not applicable to distribution systems because of specific features, such as few voltage and current measurement points, lack of load variation in time, single-phase or three-phase laterals, unbalanced network, or loads with heterogeneous conductors. In this sense, as exposed in Herrera-Orozco et al, 9 several algorithms have been proposed for distribution power systems, which can be separated into two groups: model-based method (MBM) and knowledge-based method (KBM).…”

Section: Introductionmentioning

confidence: 99%

Fault location index for distribution power system restoration using voltage sags

Fiaschetti

Risso

Boroni

2019

Int Trans Electr Energ Syst

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Summary In distribution power systems, one of the main objectives is to ensure uninterrupted service. Accordingly, the fast identification and isolation of faults is a matter of major interest. This work proposes a fault location method applicable to any power distribution system, which considers a random number of nodes as measurement points. An index value based on the voltage sags generated by different fault types is calculated for each node; then, considering the current measurements on the network and a preexisting database value, it is possible to determine fault type and location. This approach is analyzed by means of IEEE 34 node test feeder, and the results show that the proposed method can efficiently detect fault type and fault location.

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“…e security of technological systems is a major concern in the last decade [1][2][3][4]. Ensuring the security and the environment of a process require the knowledge of its operating status as finely as possible at every moment.…”

Section: Introductionmentioning

confidence: 99%

Fault Tolerant Control for MIMO Nonlinear Systems via MPC Based on MIMO ARX‐Laguerre Multiple Models

Mbarek

Bouzrara

2019

Mathematical Problems in Engineering

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In this article, we propose a fault tolerant control for multiple-input multiple-output (MIMO) nonlinear systems via model predictive control. The MIMO nonlinear systems are approximated by MIMO ARX-Laguerre multiple models. The latter is obtained by expanding a discrete-time MIMO ARX multiple model parameters on Laguerre orthonormal bases. The resulting model ensures an efficient complexity reduction with respect to the classical MIMO ARX multiple models. This parametric complexity reduction still subjects to an optimal choice of the Laguerre poles defining Laguerre bases. The parameter and structure identifications of the MIMO ARX-Laguerre multiple models are achieved by the recursive method and a metaheuristic algorithm, respectively. The proposed model is built from the system input/output observations and is used to synthesize a MIMO nonlinear fault tolerant control algorithm via MPC. So, we develop a fault detection and isolation (FDI) scheme based on the proposed model. The scheme of the fault detection is applied at every step of MPC control calculation, where we determine the actuator faults and we use it in the MPC optimization problem to determine the new control with respect to the actuator faults. The proposed strategy is tested on numerical simulation and validated on the real system.

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Parameter‐free fault location for transmission lines based on optimisation

Cited by 49 publications

References 35 publications

Accurate Location of Evolving Faults on Transmission Lines Using Sparse Wide Area Measurements

Accurate Location of Evolving Faults on Transmission Lines Using Sparse Wide Area Measurements

Fault location index for distribution power system restoration using voltage sags

Fault Tolerant Control for MIMO Nonlinear Systems via MPC Based on MIMO ARX‐Laguerre Multiple Models

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