Fault Incidence Matrix Based Reliability Evaluation Method for Complex Distribution System

Wang, Chengshan; Zhang, Tianyu; Luo, Fengzhang; Li, Peng; Yao, Liangzhong

doi:10.1109/tpwrs.2018.2830645

Cited by 49 publications

(38 citation statements)

References 16 publications

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“…The emulation system is based on Equation (34), so the loops currents have been calculated. By using the developed tie-set matrix, the branch currents were evaluated as linear transformation of loops currents as follows from Equation (15). Figure 13 shows all of the calculated currents in every converter branch.…”

Section: Resultsmentioning

confidence: 99%

“…To study different operation modes, the incidence matrix approach is recognised as the most useful one. The usage of the network graph theory in this role is reviewed in [11][12][13][14][15][16][17]. In [11], the authors demonstrated the consequence of the calculated nodal voltages and branch currents to the eigenvalues and eigenvectors of the Laplacian matrix, which describes the connectivity of the electrical network.…”

Section: Introductionmentioning

confidence: 99%

“…Reliability Evaluation of the power system also relies on the fault incidence matrix approach. The authors of [15] proposed such an algorithm. Saleh [16] provided a review of the research conducted on complex network analysis in electric power systems.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

FPGA Based Real-Time Emulation System for Power Electronics Converters

et al. 2019

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This paper deals with an emulation system for Power Electronics Converters (PEC). The emulation of PECs is performed on a Field-Programmable Gate Array (FPGA) capable of hard real-time operation. To obtain such a system, the converter operation is described using a differential equations-based model designed with the graph theory. Differential equation coefficients are changed according to the type of converter and pulse-width modulation (PWM) signals. The tie-set and incidence matrix approach for the converter modelling is performed to describe the converter operation in a general way. Such approach enables that any type of PECs can be described appropriately. The emulator was verified experimentally by synchronous operation with a real DC-AC converter built for this purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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FPGA Based Real-Time Emulation System for Power Electronics Converters

et al. 2019

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“…In addition, there is a correlation between the failure modes, as a failure mode may cause a “cascade effect,” which leads to the failure of the whole system. Therefore, the influence of failure mode correlation on reliability evaluation cannot be ignored …”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the influence of failure mode correlation on reliability evaluation cannot be ignored. [40][41][42] The rest of the paper is organised as follows: a brief introduction of cloud model is given in Section 2, and Section 3 explains the reliability evaluation process based on its similarity with the cloud model. An example to verify the effectiveness of the method is given in Section 4, and Section 5 concludes this paper with a summary.…”

mentioning

confidence: 99%

Comprehensive reliability evaluation of multistate complex electromechanical systems based on similarity of cloud models

Wang

Gao

et al. 2020

Quality & Reliability Eng

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High reliability and security have become the hallmarks of complex electromechanical systems. Owing to the difficulties in fault data collection, ambiguity and uncertainty have been inevitably associated with complex electromechanical systems. Thus, the ability to perform reliability evaluation using scarce fault data is of immense significance to these machines and is the focus of this study. A similarity based cloud model is proposed to evaluate the running state of complex electromechanical systems. By combining objective and subjective factors, the reliability of complex electromechanical systems is evaluated by calculating the similarity between the cloud models of actual and standardised states. Next, the inverter of an offshore wind turbine is used to verify the accuracy and effectiveness of the proposed approach. The cloud model based framework for reliability evaluation inherits the preponderance of the uncertainty problem, overcomes the drawbacks of the current reliability approaches, and provides a theoretical basis, as well as a practical approach for the maintenance and repair of complex electromechanical systems with missing fault data. Additionally, it also provides a new methodology for solving the uncertainty problems caused by paucity of data.

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Islanding‐based reliability enhancement and power loss minimization by network reconfiguration using PSO with multiple DGs

Ramachandradurai

Kumarappan

2021

Int Trans Electr Energ Syst

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The distributed generation (DG) units are used more in the electrical networks to reduce the energy demand along with reducing the system losses and increasing the voltage profile of the load points. This paper presents an unintentional islanding detection, reliability enhancement, and power loss minimization of the restored system after an islanding event. The detection of islanding is performed by passive detection method of simultaneous measurement of voltage and frequency (vf)-based technique. The reliability of the system is increased along with the power loss minimization through reconfiguration by Particle Swarm Optimization (PSO) technique. The network reconfiguration is performed by identifying the most vulnerable buses, and reliability indices of the system are evaluated after the islanding event. The reliability indices act as a marker for validating the proposed reconfiguration strategy. The proposed method for islanding detection, reliability enhancement, and power loss minimization is compared with the existing methods available in the literature. The proposed method is tested on two different radial distribution system such as IEEE-69 and 118 bus systems, and the results obtained after the validation are promising.

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Fault Incidence Matrix Based Reliability Evaluation Method for Complex Distribution System

Cited by 49 publications

References 16 publications

FPGA Based Real-Time Emulation System for Power Electronics Converters

FPGA Based Real-Time Emulation System for Power Electronics Converters

Comprehensive reliability evaluation of multistate complex electromechanical systems based on similarity of cloud models

Islanding‐based reliability enhancement and power loss minimization by network reconfiguration using PSO with multiple DGs

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