RESEARCH AND APPLICATION OF SYNCHRONIZED LAYOUT AND OPTIMIZATION MODEL FOR RENEWABLE ENERGY STATIONS IN DISTRICT HEATING SYSTEMS

Wang Jinda; Kong Fansi; Jin Yufei; Zhang Bishan

doi:10.19912/j.0254-0096.tynxb.2023-1022

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (10) : 266-275. DOI: 10.19912/j.0254-0096.tynxb.2023-1022

RESEARCH AND APPLICATION OF SYNCHRONIZED LAYOUT AND OPTIMIZATION MODEL FOR RENEWABLE ENERGY STATIONS IN DISTRICT HEATING SYSTEMS

Wang Jinda, Kong Fansi, Jin Yufei, Zhang Bishan

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Abstract

In order to achieve a high proportion of non-electric utilization of renewable energy, we introduced renewable energy stations （consisting of electric boilers and electric air source heat pumps） into the district heating system to enhance the utilization rate and economic efficiency of fluctuating renewable energy. To address the integration of the newly added renewable energy stations in the district heating system, we established a synchronized optimization model for configuring the quantity, connection points, and installed capacity. The model comprises two optimization modules： the internal module optimizes the total power consumption cost of the primary network circulation pump and the utilization of fluctuating renewable energy in the heating system, while the external module optimizes the net present value of economic benefits throughout the project's lifecycle. The comprehensive optimization of both internal and external modules is the primary objective, and genetic algorithms are employed to achieve efficient global optimization. The case study results demonstrate that after adding energy stations to the heating system, the synchronized optimization model optimizes the hydraulic conditions of the entire district heating system, reduces the average pressure difference among all heating station users in the network, significantly decreases energy consumption in the distribution network and heating station control valves, and results in substantial energy-saving economic benefits.

Key words

renewable energy / cost benefit analysis / optimization / district heating / capacity allocation / whole life cycle benefit

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Wang Jinda, Kong Fansi, Jin Yufei, Zhang Bishan. RESEARCH AND APPLICATION OF SYNCHRONIZED LAYOUT AND OPTIMIZATION MODEL FOR RENEWABLE ENERGY STATIONS IN DISTRICT HEATING SYSTEMS[J]. Acta Energiae Solaris Sinica. 2024, 45(10): 266-275 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1022

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