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Optimal Configuration of Power/Thermal Energy Storage for a Park-Integrated Energy System Considering Flexible Load

Author

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  • Zhi Zhu

    (School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
    Key Laboratory of Wind Power Generation Technology of Liaoning Province, Shenyang University of Technology, Shenyang 110870, China)

  • Miaomiao Wang

    (School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
    Key Laboratory of Wind Power Generation Technology of Liaoning Province, Shenyang University of Technology, Shenyang 110870, China)

  • Zuoxia Xing

    (School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
    Key Laboratory of Wind Power Generation Technology of Liaoning Province, Shenyang University of Technology, Shenyang 110870, China)

  • Yang Liu

    (School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
    Key Laboratory of Wind Power Generation Technology of Liaoning Province, Shenyang University of Technology, Shenyang 110870, China)

  • Shihong Chen

    (School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
    Key Laboratory of Wind Power Generation Technology of Liaoning Province, Shenyang University of Technology, Shenyang 110870, China)

Abstract

The park-integrated energy system can achieve the optimal allocation, dispatch, and management of energy by integrating various energy resources and intelligent control and monitoring. Flexible load participation in scheduling can reduce peak and valley load, optimize load curves, further improve energy utilization efficiency, and reduce system costs. Based on this, firstly, a flexible power-load model is established considering the translatable load, transferable load, and reducible load; and a thermal flexible load model is established based on the fuzziness of user perception of temperature in this study; then, the mixed integer linear programming method is adopted, and the sum of the carbon transaction cost, operation and maintenance cost, compensation cost, power purchase cost, gas purchase cost, wind and light abandonment penalty cost and investment cost of the system is minimized as the objective function, and the configuration of the integrated energy system is optimized, and the optimal capacity of each equipment and the output of each period are obtained. Finally, taking an industrial park in Liaoning Province of China as an example, the analysis is carried out. The example results show that by scheduling the flexible electrical load and flexibly adjusting the indoor temperature, renewable energy consumption can be promoted, and electricity load and heat-load curves can be optimized to increase the installed capacity of wind turbines, reduce the capacity of gas turbines, batteries, and heat-storage tanks, improve system economy, and improve the penetration rate of renewable energy.

Suggested Citation

  • Zhi Zhu & Miaomiao Wang & Zuoxia Xing & Yang Liu & Shihong Chen, 2023. "Optimal Configuration of Power/Thermal Energy Storage for a Park-Integrated Energy System Considering Flexible Load," Energies, MDPI, vol. 16(18), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:18:p:6424-:d:1233342
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    References listed on IDEAS

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