Analytical interval assessment method of voltage sag frequency considering the satisfaction degree of sensitive customer

Xu, Wei; Wang, Ying; Xiao, Xianyong

doi:10.1109/iecon.2011.6119419

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…Thus, line faults are converted into the faults of the upstream bus connected with the line in this paper. There are four types of short-circuit faults [25] ：single-phase to ground fault (SLG fault), two-phase short-circuit fault (LL fault), two-phase to ground fault (LLG fault) and three-phase short-circuit fault. Among them, three-phase short-circuit fault has the most serious impact on the system and single-phase to ground fault has the highest failure probability.…”

Section: Analysis On Voltage Sags and Swells Based On Voltage Ellipse Parametersmentioning

confidence: 99%

An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters

Tian

Liu

et al. 2021

IEEE Access

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Voltage sags and swells are significant issues of power quality. In order to alleviate voltage sags and swells on sensitive loads, a method is proposed to evaluate the bus and grid structure based on voltage sags/swells using voltage ellipse parameters. The voltage matrix is established for voltage sags/swells caused by four types of short-circuit faults. The voltage matrix can be converted into a minor axis matrix and a major axis matrix using the Clarke transformation, and accordingly a voltage sag matrix and a voltage swell matrix can be obtained with the interaction between voltage sags/swells and voltage ellipse parameters. The key indicator and the vulnerability indicator of bus as well as the indicator of grid structure are defined according to the voltage sag matrix and swell matrix. The buses are sorted using the indicators proposed, and the result of bus sorting provides a basis for selecting the buses that need to be managed to alleviate voltage sags/swells. The experiment results in IEEE 30-bus system and IEEE 57-bus system show that these indicators facilitate the selection of the access point for newly-added sensitive loads, and provide a theoretical guidance to the mitigation of voltage sags and swells, and help to accomplish the planning, operation and transformation of power grid.

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Section: Analysis On Voltage Sags and Swells Based On Voltage Ellipse Parametersmentioning

confidence: 99%

An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters

Tian

Liu

et al. 2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Due to the time‐consuming aspect of Monte Carlo simulation, these methods are also inefficient for large scale systems, especially, when frequent assessments for various probability distributions and system conditions are needed. Some analytical assessment methods have also been addressed [14, 15]. In these methods, voltage sag performance is evaluated based on an analytical formulation of system faults.…”

Section: Introductionmentioning

confidence: 99%

Voltage quality assessment considering low voltage ride‐through requirement for wind turbines

Park

Jang

2016

IET Generation, Transmission & Distribution

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Analytical interval assessment method of voltage sag frequency considering the satisfaction degree of sensitive customer

Cited by 2 publications

References 28 publications

An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters

An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters

Voltage quality assessment considering low voltage ride‐through requirement for wind turbines

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