Planning method for cold and hot double-storage type heat pump equipment

Abstract

The invention discloses a planning method for cold and heat double-storage type heat pump equipment, and belongs to the technical field of clean heating and refrigerating and energy system planning. The implementation method comprises the steps that according to annual electricity, heat and cold load data and a power grid structure, modeling is conducted on a wind turbine generator, a thermal power generating unit, a combined cooling heating and power generating unit, a heat pump unit and a cooling and heating double-storage device, and an electricity and heat comprehensive energy system modelcontaining cooling and heating double-storage type heat pump equipment is constructed according to the electricity, heat and cold load supply and demand relation; the capacity and the installation place of the cold and hot double-storage type heat pump equipment are planned by taking the minimum new construction cost and the minimum overall coal consumption of the system as targets through an intelligent algorithm; the maximum output margin of a thermal power generating unit, a combined cooling heating and power generating unit, a heat pump unit and a cooling and heating double-storage deviceis used as the rated power and capacity value of reasonable planning. The investment cost and the operation cost of the system can be reduced, the contradiction in the aspects of heat supply, refrigeration and wind energy utilization is effectively relieved, and the wind power utilization rate is increased.

Description

technical field [0001] The invention relates to a planning method for cold-heat dual-storage heat pump equipment, which is suitable for an electric-thermal comprehensive energy system including a heat pump and a cold-heat dual-storage device, and belongs to the technical fields of clean heating and cooling, and energy system planning. Background technique [0002] As a clean and renewable energy, wind energy's large-scale use highlights high economic and environmental protection potential. At present, the installed capacity and scale of use of wind turbines in my country are increasing day by day, but the large-scale use of wind power has also brought serious wind curtailment problems. According to the statistics of the National Energy Administration, in 2019, the newly installed wind power capacity in the country was 25.74 million kilowatts, and the national average wind curtailment rate was 4%. Among them, the "Three Norths" region is still the region with the most severe...

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Problems solved by technology

[0005] Aiming at the problem of wind abandonment caused by the large-scale use of wind power in the prior art and the consumption of coal for power generation, the technical problem to be solved by the planning method for cold and hot double storage heat pump equipment disclosed by the present invention is: The planning of heat pump equipment can reduce the problem of abandoned wind caused by the large-scale use of wind power, reduce the consumption of coal for power generation, and can reduce the investment cost and operation cost of the electric heating integrated energy system, and effectively alleviate the contradiction between heating, cooling and wind energy utilization. Improve the utilization rate of wind power

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