Micro energy grid system including air source heat pump and energy storage and its operation control method
An air source heat pump, operation control technology, applied in the direction of electrical program control, program control, comprehensive factory control, etc., can solve the problems of restricting renewable energy consumption capacity, lack of coordination, low energy use efficiency, etc., to ensure comprehensive utilization. Efficiency, low operation and maintenance costs, and the effect of improving energy efficiency
Active Publication Date: 2020-09-15
北京华建网源电力设计研究院有限公司 +1
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Problems solved by technology
Microgrids can choose grid-connected or isolated island operation, but they are limited to electricity, and are separated from heating networks, natural gas networks, and transportation networks without coordination, resulting in inefficient energy use and restricting the ability to accommodate renewable energy.
Method used
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Embodiment
[0095] Taking a park located in Qingdao as an example, the operating status of the equipment in the park and the energy consumption cost of the park are studied under the two scenarios of whether there is an air source heat pump and energy storage. Today, the power implements the peak-valley electricity price policy, which is divided into four types of electricity prices: peak, peak, flat, and valley, as shown in Attached Table 2.
[0096] Table 2
[0097] time (h) Electricity price (yuan / kWh) 0-7 0.3943 8,12-18 0.8898 9-10,19,22-23 1.3854 11,20-21 1.4680
[0098] Using matlab to solve the model, the output and cost of the micro-energy grid equipment are obtained with or without air source heat pump and energy storage. The solution results are attached Figure 5a ~ Figure 8b shown.
[0099] Such as Figure 5a , Figure 5b As shown in Fig. 1, without air source heat pump and energy storage, the equipment power supply and heating conditio...
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The invention relates to a micro energy network system containing an air source heat pump and energy storage and an operation control method thereof. The included photovoltaic power generation deviceconverts solar energy into electric energy and is connected with an electric bus; one end of a gas engine is connected with a natural gas network and the other end is connected with the electric bus and a waste heat boiler; one end of the waste heat boiler is connected with the gas engine and one end is connected with a thermal bus; one end of a gas boiler is connected with a natural gas pipelineand the other end is connected with the thermal bus; one end of an absorption refrigerator is connected with the thermal bus and the other end is connected with a cold load through a pipeline; one endof an electric refrigerator is connected with the electric bus and the other end is connected with the cold load; one end of an air source heat pump is connected with the electric bus and one end isdirectly connected with a thermal load; an electric storage device stores or releases electric energy; a thermal storage device stores or releases thermal energy; and a cold storage device stores or releases cold energy. The coupling transformation direction of an energy flow can be adjusted, and energy supply to users is completed economically and greenly.
Description
technical field [0001] The invention relates to the field of electrical engineering and new energy, in particular to a micro energy grid system including an air source heat pump and energy storage and an operation control method thereof. Background technique [0002] Energy is the basis for the survival and development of human beings and the economic lifeline of a country. With the development of social economy, society's demand for energy is increasing, while traditional fossil energy is decreasing day by day, and environmental problems are becoming more and more serious. Energy-oriented microgrids emerge as the times require. Microgrids can choose to be connected to the grid or run in islands, but they are limited to electricity, and are separated from the heating network, natural gas network, and transportation network without coordination, resulting in inefficient energy use and restricting the ability to accommodate renewable energy. [0003] With the introduction of...
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IPC IPC(8): G05B19/418
CPCG05B19/4185G05B2219/31088
Inventor 田雪沁徐彤王新雷罗家松宋崇明颜静郭玉杰
Owner 北京华建网源电力设计研究院有限公司