NDLI: Time-periodic model of wind speed and its application in risk evaluation of wind-power-integrated power systems

Content Provider	IET Digital Library
Author	Wang, Jian Xiong, Xiaofu Li, Haoran Lu, Xiaofeng
Abstract	Risk evaluation of wind-power-integrated power systems requires a distinctive wind speed modelling technique. Existing techniques of mid- and long-term risk assessment mainly focus on annual wind speed pattern rather than its monthly and daily patterns, which cannot reflect the time-varying characteristics of power system risk. This article proposes a time-periodic model of wind speed which incorporates two parts. The first part is the monthly wind speed patterns which can be represented as time-periodic functions, while the other one is the fluctuation in daily wind speeds that can be denoted as a random variable following a certain probability distribution. With this model, a risk evaluation procedure for wind-power-integrated power system is developed. Collected wind speed data from four representative sites in China are used to verify the proposed model. The application of the proposed wind model and risk assessment method is tested by calculating annual and monthly risk indices of a modified IEEE-RTS79 system. Results can provide references for power system planning, mid- and long-term dispatching, and monthly generation scheduling.
Starting Page	46
Ending Page	54
Page Count	9
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 1, Jan (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5619
Journal	IET Generation, Transmission & Distribution
Publisher Date	2018-10-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Annual Wind Speed Pattern China Daily Wind Speed Long-term Dispatching Long-term Risk Assessment Mid-term Dispatching Mid-term Risk Assessment Modified IEEE-RTS79 System Monthly Generation Scheduling Monthly Wind Speed Pattern Power Generation Dispatch Power Generation Planning Power System Economics Power System Managemen Power System Operation Power System Planning Power System Planning And Layout Probability Distribution Risk Evaluation Procedure Risk Management Statistical Distribution Statistics Time-periodic Function Time-periodic Model Wind Power Plant Wind Speed Modelling Technique Wind-power-integrated Power System
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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