Electric power control method of cogeneration unit with electric boiler and heat storing tank
A combined heat and power generation unit and combined heat and power generation technology, applied to heating methods, electric heating systems, and central heating, can solve problems such as large input costs, poor power grid regulation capabilities, and insufficient peak-shaving capabilities of the system. The effect of regulatory capacity
Active Publication Date: 2020-02-14
STATE GRID CORP OF CHINA +1
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Problems solved by technology
However, in order to supply heat in winter, the combined heat and power unit operates in the mode of "heat fixed power generation", and its output power cannot be reduced, resulting in insufficient peak regulation capacity of the system and poor overall regulation capacity of the power grid
[0005] During the heating period in the northern part of the country, the heating units operate "by heat to determine electricity", which leads to a serious shortage of peak-shaving capacity of the system, which cannot meet the requirements of large-scale wind power and photovoltaic power generation consumption, resulting in serious abandonment of wind and light.
[0006] There are many ways to improve the comprehensive utilization efficiency of energy and reduce the phenomenon of curtailment of wind and light, but the input cost is high. The more economical and practical method is to study the use of combined heat and power (CHP) units to improve the comprehensive Ability to accommodate new energy sources such as wind power and photovoltaics
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[0047] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0048] see first figure 1 , figure 1 It is a schematic diagram of the electric power controller of the combined heat and power generation unit including the electric boiler and the heat storage tank of the present invention. It can be seen from the figure that the electric power control method of the cogeneration unit including the heat storage tank and the electric boiler in the present invention is characterized in that it includes a first communication port 1, a second communication port 2, a third communication port 3, and a fourth communication port. Port 4, the fifth communication port 5, the sixth communication port 6, the seventh communication port 7 and the controller of the control unit 8;
[0049] The new energy power generation signal input end of the first co...
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Provided is an electric power control method of a cogeneration unit with an electric boiler and a heat storing tank. The adjusting method is aimed at solving the problem that the electric power adjusting is limited by the operation mode of an 'ordering-power-by-heat' cogeneration unit; by adding the heat storing tank and the electric boiler, the working characteristics of a cogeneration system arechanged, the existing 'ordering-power-by-heat' coupling relationship is broken to a great extent, the load adjusting capacity of a power grid is greatly improved, and the absorbing capacity of the power grid for wind power and other new energy is improved. By means of the electric power adjusting method, the conflicts that the input of the cogeneration unit in the heating season reduces the networking capacity of the wind power and other new energy and the peak load regulation capacity of the system is not sufficient are solved. Thus, the method has great significance.
Description
technical field [0001] The invention relates to the field of comprehensive energy, in particular to the field of combined heat and power generation, and specifically relates to an electric power control method for a combined heat and power generation unit including an electric boiler and a heat storage tank. Background technique [0002] In order to solve the shortage of fossil resources and the environmental pollution caused by coal burning, it is an inevitable choice for our country and other countries in the world to vigorously develop clean and environmentally friendly wind power and other renewable energy sources. [0003] In order to realize the energy strategy of low-carbon, environmental protection, green and sustainable development, my country has vigorously developed renewable energy in recent years, and issued a series of standards and policies for renewable energy. Renewable energy has made great progress, especially wind power. Energy development and utilization....
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IPC IPC(8): F24D19/10F24D12/02F24D3/10F24D11/00F24D13/04H02J3/48
CPCF24D3/1058F24D11/004F24D12/02F24D13/04F24D19/1009F24D2200/32H02J3/48Y02B10/70Y02B30/00Y02E10/76
Inventor 张庆李国杰于志鹏尹爱辉赵旭东刘思华
Owner STATE GRID CORP OF CHINA