NDLI: Economic dispatch model for wind power integrated system considering the dispatchability of power to gas

Content Provider	IET Digital Library
Author	Chen, Zexing Zhang, Yongjun Ji, Tianyao Li, Canbing Xu, Zhiheng Cai, Zexiang
Abstract	Power-to-gas (P2G) technology opens up another perspective for effective, long-term, large-scale energy storage, so that it can promote large-scale wind power integration. Under this background, this study introduces P2G technology into the economic dispatch model of wind power integrated systems. First, an uncertainty interval model of wind power is built based on the probability distribution of wind power prediction error. Then, considering P2G's function of absorbing surplus wind power and undertaking downward spinning reserve, the factors that influence P2G's ability in enhancing the accommodation of wind power are analysed through theoretical derivation. Consequently, the relationship between the maximum wind power integration and the power delivered to the P2G facilities under a given capacity of P2G can be further understood. Moreover, an economic dispatch model incorporating wind power, P2G facilities and battery energy storage systems is established and a feasible region relaxation algorithm is proposed to deal with the non-smooth functions in the proposed model. Case studies are conducted on a modified IEEE 39-bus system. The results verify the correctness of theoretic analysis and show that the proposed model can help to reduce wind power curtailment and enhance the security and economy of the power system.
Starting Page	1535
Ending Page	1544
Page Count	10
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 9, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5640
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-01-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Absorbing Surplus Wind Power Battery Energy Storage System Economic Dispatch Model Energy Storage Large-scale Wind Power Integration Maximum Wind Power Integration Optimisation Technique P2G Power Generation Dispatch Power Generation Economics Power Grid Power System Power System Economics Power System Managemen Power System Operation Power-to-gas Technology Probability Uncertainty Interval Model Undertaking Downward Spinning Reserve Wind Power Wind Power Curtailment Wind Power Integrated System Wind Power Plant Wind Power Prediction Error
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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