Cloud Model Based Evaluation of Equipment Sensitivity to Voltage Sag

Author

Zhao Hong ; Wang Ying ; Xiao Xian-Yong ; Wang Heng-Gui

Author_Institution

Sch. of Electr. Eng. & Inf. Technol., Sichuan Univ., Chengdu, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

The sensitivity of sensitive equipment to voltage sags depends on the characteristics of voltage sag on the power supply site and the voltage tolerance of equipment. It is multi-uncertain including stochastic and fuzzy. Cloud model is used to present the sensitivity of equipment in this paper. The direct normal cloud generator was used to translate the qualitative distribution of VTC into quantitative one. After the numerical values of probability density function of VTC was calculated, the failure probability of equipment was determined. The simulation results for PC have proved that the proposed method is correct and reasonable.

Keywords

power apparatus; power supply quality; probability; cloud model; direct normal cloud generator; equipment sensitivity; failure probability; power supply site; probability density function; voltage sag; voltage tolerance; Entropy; Generators; Mathematical model; Power quality; Stochastic processes; Uncertainty; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5749039

Filename

5749039