Electric Power ›› 2019, Vol. 52 ›› Issue (2): 78-84.DOI: 10.11930/j.issn.1004-9649.201806147

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Two-Stage Optimal Dispatching of Wind Power-Waste Incineration Virtual Power Plant with Flue Gas Storage Device

ZHOU Renjun1, CHEN Yi1, YANG Weiwei2, WANG Yangzhi1, XU Jian1, ZHU Jiangsheng1   

  1. 1. Hunan Province Collaborative Innovation Center of Clean Energy and Smart Grid (Changsha University of Science and Technology), Changsha 410004, China;
    2. CINF Engineering Co. Ltd., Changsha 410011, China
  • Received:2018-07-02 Revised:2018-10-09 Online:2019-02-05 Published:2019-03-27

Abstract: The energy consumption for the flue gas treatment in the waste incineration power plant accounts for a large proportion of the plant's total power output, and its on-grid output is constrained by the coupling relationship between the power generation and the flue gas treatment. The relationship between the above two factors is decoupled through the installation of gas storage devices and controlling of the flue gas treatment time, so as to improve the flexibility of the waste incineration power plant in power output adjustment for grid-connection of large-scale wind power. The wind power plant, waste incineration power plant and the flue gas treatment system added with gas storage devices are integrated into a virtual power plant. Aiming at maximizing the overall net benefit, a day-ahead-real time two-stage optimal dispatching model is established, which includes the sub-model of flue gas treatment system with gas storage device. By using the day-ahead dispatching results as the report output, the amount of flue gas in the gas storage device is adjusted according to the deviation of actual and forecasted wind power output, and the net output of the waste incineration power plant is corrected in real time in order to follow the changes of wind power. Simulation results have verified the rationality of the proposed model, and the model has significant economic and social value in practical application.

Key words: flue gas storage, waste incineration power plant, virtual power plant, two-stage optimal dispatch

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