LOW VOLTAGE APPARATUS ›› 2023, Vol. 0 ›› Issue (11): 59-66.doi: 10.16628/j.cnki.2095-8188.2023.11.010

• Distributed Generation and Grid-Connection Technology • Previous Articles     Next Articles

Optimal Dispatch of Regional Integrated Energy System Considering Soil Heat Emission Balance

JIANG Tao1, RAN Fengxu1, ZHOU Huijuan2, ZHANG Qimeng3, ZHANG Jinsong1, ZHOU Weiran1   

  1. 1. Shibei Electric Power Supply Branch Company, State Grid Chongqing Electric Power Company, Chongqing 401147, China
    2. Marketing Service Center of State Grid Henan Electric Power Company, Zhenzhou 450000, China
    3. Chengdong Power Supply Branch, State Grid Tianjin Electric Power Company, Tianjin 300250, China
  • Received:2023-05-27 Online:2023-11-30 Published:2023-12-22

Abstract:

In order to solve the problem of soil heat imbalance caused by the uneven operation time of ground source heat pump in winter and summer, an optimal scheduling method of regional integrated energy system considering the balance of heat discharged from soil was proposed.First, according to the operating characteristics of ground source heat pump in winter and summer, the annual heat imbalance rate of soil is calculated.Secondly, increase the use time of ground source heat pump in the cooling season to increase the heat output from the soil, so as to ensure the heat balance of ground source heat pump throughout the year.Finally, a double-layer optimization model is constructed.The upper model optimally arranges the output of ground source heat pump based on the system operating cost in winter.The lower model optimizes the output of ground source heat pump based on the system’s optimal benefit in summer, taking into account constraints such as the soil heat extraction and emission balance.Simulation examples show that the proposed method effectively solves the problem of soil thermal imbalance and improves system energy efficiency.

Key words: soil thermal imbalance, ground source heat pump (GSHP), regional integrated energy system (RIES), optimal dispatch

CLC Number: