Reliability of utility supply configurations for industrial power systems

Love, D.J.

doi:10.1109/28.315243

Cited by 12 publications

(3 citation statements)

References 3 publications

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“…Reliability evaluation is one of the essential functions required in the planning and operating stage of energy systems [1][2][3]. So far, considerable methodologies, such as Monte Carlo simulation (MCS), minimal cut set approach, and FMEA have evolved over the past 50 years to develop various reliability techniques [4][5][6][7]. However, those methodologies usually involve iterative computations, and hence are time-consuming and hard to be implemented in high-level analyses, such as risk analysis and sensitivity analysis [8].…”

Section: Introductionmentioning

confidence: 99%

Recursive Method for Distribution System Reliability Evaluation

Wang

Zhang

Li³

et al. 2018

Energies

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This paper proposes a novel hybrid recursive method for distribution system reliability evaluation to deal with the computational limit and low-efficiency problem which exist in previously developed techniques as the system becomes larger. This method includes a bottom-up process and a top-down process, which are developed on the basis of a recursive principle, and the synthesis of both processes yield the reliability performance of each bus of the system. The bottom-up process considers the effects of downstream failures on upstream customers, and the top-down process considers the effects of upstream failures on downstream customers. In addition, a novel switch zone concept is defined and introduced into the bottom-up recursive process to save the computation cost. Besides, section technique (ST) and shortest path method (SPM) are employed to effectively simplify the recursive path and thus, the computation efficiency can be improved. The most significant feature of the proposed method over ST, SPM, failure mode and effect analysis (FMEA) is that it provides a more generalized equivalent approach to maximally simplify the network for reliable evaluation irrespective of the network topology. The effectiveness of the proposed method has been validated through comprehensive tests on Roy Billinton test system (RBTS) bus 6 and a practical-sized distribution system in China.

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Section: Introductionmentioning

confidence: 99%

Recursive Method for Distribution System Reliability Evaluation

Wang

Zhang

Li³

et al. 2018

Energies

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“…If the selection of parameters is unreasonable, the protection circuit will affect the performance of power supply, even damage the device. So choosing properly parameters of protection circuit play a crucial role as for the reliability of power [3,7,8]. The arc welding power supply is a new type of welding and used widely for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Design of protection circuit for arc welding power supply

Teng

Zhang

Zhu

et al. 2011

2011 International Conference on Applied Superconductivity and Electromagnetic Devices

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The paper discusses the design of protection circuits responsible for the reliability of arc welding power supply. The protection circuits include three parts, and they are soft-start circuit for anti-surge, circuit for eliminating transformer DC bias magnetic field and circuit for transient over-voltage suppression, respectively. The detail calculations about component parameters of these circuits are given. The transformer and the power devices in this paper are regarded as ideal devices. Meanwhile, their losses are neglected. The method can provide certain guide for improving reliability of protection circuit.

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“…Love. 1994) [2]. In all kinds of power quality matter, voltage flicker occurs frequently and seriously impacts the normal work of load.…”

Section: Introductionmentioning

confidence: 99%

A Scheme of Dynamic Voltage Restorer to Improve Power Quality in Large Scale Industrial Enterprises

Shi¹,

Xiao²,

Liu³

et al. 2016

JPEE

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Loads in large scale industrial enterprises are always various and complex, causing insecure power quality. Meanwhile, some sensitive loads or precise instruments demand for high power quality. When voltage flicker or harmonics occurs, dynamic voltage restorer (DVR) can be used to stabilize the load-side voltage, which is a good manner of improving power quality. The paper explains the load demand in large scale industrial enterprises, analyzes several common voltage compensation scheme of DVR, and comes up with another voltage compensation scheme of DVR applied for double power supply with double load. A Simulink model according to the new scheme is also built in MATLAB/Simulink to test its performance. Simulation results show that the proposed scheme can guarantee the load-side voltage stability, which is an effective scheme for managing power quality.

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Reliability of utility supply configurations for industrial power systems

Cited by 12 publications

References 3 publications

Recursive Method for Distribution System Reliability Evaluation

Recursive Method for Distribution System Reliability Evaluation

Design of protection circuit for arc welding power supply

A Scheme of Dynamic Voltage Restorer to Improve Power Quality in Large Scale Industrial Enterprises

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