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A study on operation control of urban centralized heating system based on cyber-physical systems

Author

Listed:
  • Lin, Xiaojie
  • Liu, Sibin
  • Lu, Shuowei
  • Li, Zhongbo
  • Zhou, Yi
  • Yu, Zitao
  • Zhong, Wei

Abstract

Intelligent and efficient operation of large-scale urban centralized heating system (UCHS) is a hot topic in urban energy system field. This study develops an intelligent operation control platform for China’s UCHS via “cyber-physical systems” (CPS). The platform is based on graph theory and thermal-hydraulic modeling and has been validated against measured data collected from the substations. 88.5% of the modeled substation supply pressure has an error of less than 5%, and 82.1% of the modeled substation return pressure has an error of less than 5%. The platform carries out “model-based prediction” and “prediction-based decision-making” by incorporating state sensing, load forecasting, modeling, and model-based operation optimization. The platform is further applied to a target UCHS using coal-based combined heat and power (CHP) units and gas-fired boilers as heating sources and covering an area of 15 million m2. To ensure the accuracy, this study carries out online calibration with real-time operation data and tests the load distribution feature during the pilot heating season. During a two-day operation, the optimized heating sources load distribution scheme could reduce natural gas consumption by up to 31.2% when compared with existing experience-based operation. The operation cost during that operation period is also reduced by 2.6%, accordingly.

Suggested Citation

  • Lin, Xiaojie & Liu, Sibin & Lu, Shuowei & Li, Zhongbo & Zhou, Yi & Yu, Zitao & Zhong, Wei, 2020. "A study on operation control of urban centralized heating system based on cyber-physical systems," Energy, Elsevier, vol. 191(C).
    • Handle: RePEc:eee:energy:v:191:y:2020:i:c:s0360544219322649
    DOI: 10.1016/j.energy.2019.116569
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    References listed on IDEAS

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