NDLI: Research on spectral analysis method of load characteristics in smart grid

Content Provider	IEEE Xplore Digital Library
Author	Yu Cheng Nan Dong
Copyright Year	2011
Description	Author affiliation: Electricity Market Research Institute, North China Electric Power University, Beijing, China (Yu Cheng; Nan Dong)
Abstract	With promoting of demand response mechanism, injection of large-scale new energy into the distribution network in smart grid and rapid change of economic situation as well as industrial structure, time-varying of electric loads intensifies. Conventional indexes of power load characteristics such as load factor and peak-valley difference factor have difficulties in estimating electric load peak and valley characters comprehensively and effectively. This paper puts forward spectral analysis method to analyze power load characteristics and pulls out corresponding indexes to describe peak and valley fluctuation characters of electric load curves, which transfers research on load characteristics from time domain to frequency domain and makes up the deficiency in study of electric load characteristics in time domain. This method divides the time series of power load into superposition of periodic components with different amplitude, phase and frequency and finds out main-cycles components contained in power load. Through analyzing fluctuation characteristics of main-cycles components, we can obtain the essence of load curves' fluctuation more effectively. Finally, the paper establishes frequency domain analysis indexes system of load characteristics to support interactive construction of users and power networks in smart grid. The example has confirmed the effectiveness of the indexes system.
Starting Page	2561
Ending Page	2565
File Size	256612
Page Count	5
File Format	PDF
ISBN	9781612841809
e-ISBN	9781612841816
DOI	10.1109/FSKD.2011.6020063
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	load characteristics Fluctuations Time domain analysis Educational institutions spectral analysis Power systems Indexes peak and valley fluctuation characters Spectral analysis Frequency domain analysis
Content Type	Text
Resource Type	Article

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