Research and application on power quality monitoring and warning of intelligent power distribution network based on cloud platform

doi:10.3969/j.issn.1674-1951.2021.01.006

Abstract

Abstract:

Power quality not only affects the safe , stable and economic operation of power grid, but also directly impacts the operation of the electrical equipment on user side. Recently,the access of wind power and distributed PV to power grid strikes the power quality of the whole power grid. And with the development of high-tech industries, such as computer, power and electronics industries, a mass of users have made higher requirements on power supply quality. Monitoring and evaluation on power quality information is the prerequisite of disclosing power quality problems and improving power quality. Therefore, adopting power quality index monitoring method based on the Hidden Markov Model, an intelligent power distribution network power quality monitoring and warning system based on cloud platform is designed,to monitor and predict multiple power quality indexes. This system can help personnel to find the existing or potential problems in power quality at early stage, and provide decision basis for efficient power quality management and intelligent control.

Key words: cloud platform, intelligent distribution network, power quality, Hidden Markov Model, monitoring and evaluation system, distributed resources

CLC Number:

TM933:TK01 ⁺8

BIAN Yang, ZHAO Qijian, HU Shuijun, XU Hua, CAO Li, ZHOU Niancheng. Research and application on power quality monitoring and warning of intelligent power distribution network based on cloud platform[J]. Huadian Technology, 2021, 43(1): 31-37.

Figures/Tables 7

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