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Home > Archive>Volume 9, Issue 4, 2021 >751-759. DOI:10.35833/MPCE.2021.000060
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Coordinated Operation of Concentrating Solar Power Plant and Wind Farm for Frequency Regulation
Author:
Affiliation:

1.State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China;2.International Joint Laboratory on Low Carbon Clean Energy Innovation, Tsinghua University, Beijing 100084, China;3.Department of Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA

Fund Project:

This work was supported by the National Key Research and Development Program of China (No. 2017YFB0902200), Key Technology Project of State Grid Corporation of China (No. 5228001700CW), and the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (No. LAPS20002).

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    Abstract:

    As a dispatchable renewable energy technology, the fast ramping capability of concentrating solar power (CSP) can be exploited to provide regulation services. However, frequent adjustments in real-time power output of CSP, which stems out of strategies offered by ill-designed market, may affect the durability and the profitability of the CSP plant, especially when it provides fast regulation services in a real-time operation. We propose the coordinated operation of a CSP plant and wind farm by exploiting their complementarity in accuracy and durability for providing frequency regulation. The coordinated operation can respond to regulation signals effectively and achieve a better performance than conventional thermal generators. We further propose an optimal bidding strategy for both energy and frequency regulations for the coordinated operation of CSP plant and wind farm in day-ahead market (DAM). The validity of the coordinated operation model and the proposed bidding strategy is verified by a case study including a base case and sensitivity analyses on several impacting factors in electricity markets.

    表 2 Table 2
    表 3 Table 3
    表 4 Table 4
    图1 Coordinated strategy of a coordinated system.Fig.1
    图2 Illustration of bidding capacity in different time resolutions.Fig.2
    图3 Energy and regulation market prices, and available wind power for scenario 5. (a) Hourly prices in energy market and available wind power. (b) Hourly prices in regulation market.Fig.3
    图4 Normalized regulation signal and wind power control error.Fig.4
    图5 Day-ahead bidding strategy of coordinated system.Fig.5
    图6 Real-time bidding strategy of wind farm.Fig.6
    图7 Real-time bidding strategy of CSP plant.Fig.7
    图8 CSP plant behavior in base mode.Fig.8
    图9 ROIs for different ratios of CSP plant capacity to wind farm capacity.Fig.9
    图10 ROIs for different ratios of wind farm capacity to CSP plant capacity.Fig.10
    图11 Total income of coordinated system.Fig.11
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History
  • Received:January 26,2021
  • Online: August 04,2021

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