Intraday Security-Constrained Economic Dispatch with Coordinative Optimization of Peak Regulation Ancillary Service and Unit Energy

doi:10.11930/j.issn.1004-9649.201711125

Abstract

Abstract: The penetration of large-scale renewable energy brings great challenge to power system peak regulation, which makes it more difficult to balance the energy completion processes of different units under the current dispatch mode. Aiming at the intraday dispatch problem, an intraday dispatch mode with coordinative optimization of peak regulation ancillary service and unit energy is proposed, so as to avoid the collision between the peak regulation market mechanism and the current dispatch mode. Based on the proposed mode, the intraday security-constrained economic dispatch model is developed to realize the coordination of peak regulation ancillary service and unit energy as well as minimize the overall dispatch costs. To accelerate the computation of this model, an iterative algorithm featuring identifying the bidding security constraints is derived. Finally, the effectiveness and efficiency of the proposed models and methods are validated by the IEEE 30-bus system and a real-world provincial power system.

Key words: power system, dispatch and control, peak regulation, ancillary service, energy coordination, intraday, security constraints, economic dispatch

CLC Number:

TM761

LI Yanchun, ZHANG Huaqing, LIN Wei, LI Chengdong, BAI Yang, ZHANG Xiaohan, ZHAO Ran, ZHANG Kaixuan, WANG Yang. Intraday Security-Constrained Economic Dispatch with Coordinative Optimization of Peak Regulation Ancillary Service and Unit Energy[J]. Electric Power, 2018, 51(10): 95-102.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201711125

https://www.electricpower.com.cn/EN/Y2018/V51/I10/95

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