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Method and system for deep peak load regulation of thermoelectric unit

A thermoelectric unit, deep technology, applied in the direction of heating system, hot water central heating system, heating method, etc., can solve the problems of large investment in transformation and poor heating economy, so as to increase the margin of peak regulation and improve the absorption of new energy. The effect of energy capacity

Active Publication Date: 2021-08-13
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned thermoelectric decoupling technologies all need to transform the unit or thermal system, which requires large investment and poor heating economy, and the safety of the transformed unit needs to be further verified.

Method used

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  • Method and system for deep peak load regulation of thermoelectric unit
  • Method and system for deep peak load regulation of thermoelectric unit
  • Method and system for deep peak load regulation of thermoelectric unit

Examples

Experimental program
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Effect test

Embodiment 1

[0035] When the heat load of the unit is determined, the adjustable range of the electrical load of the unit is determined accordingly. If the unit needs to perform a wider range of electric load peak regulation, it is necessary to change the heat load of the unit. Considering that the heating network has a large thermal inertia, the unit can provide more heat to the heating network before deep peak regulation, and store the heat in the heating network. The heat supply can be reduced or even stopped, so that the electrical load of the unit can be reduced to a lower level, leaving more space for absorbing new energy.

[0036] Taking a condensing extraction unit as an example, the heat network structure using the unit as the heat source is as follows: figure 1 Shown; heating system is a complex system, in order to focus on the main contradiction can be properly simplified and made the following assumptions:

[0037] The standard indoor temperature of each building in the heati...

Embodiment 2

[0066] In one or more embodiments, a system for deep peak regulation of thermal power units is disclosed, including:

[0067] The data acquisition module is used to determine the heating demand value of each electric load and the critical electric load of the unit under different outdoor temperatures;

[0068] The function fitting module is used to obtain the functional relationship between the heating margin and the outdoor temperature under different electric loads through curve fitting; and the functional relationship between the critical electric load and the outdoor temperature;

[0069] According to the predicted value of outdoor temperature on the forecast day, through the above fitting function relationship, respectively determine the heating margin of each electric load on the forecast day and the critical electric load of the unit; and then fit the heat supply margin of each electric load on the forecast day The function relationship between degree and time;

[0070...

Embodiment 3

[0074] In one or more embodiments, a terminal device is disclosed, including a server, the server includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the The program is a method for realizing the deep peak regulation of the thermoelectric unit in the first embodiment. For the sake of brevity, details are not repeated here.

[0075] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

[0076] The memory may include read-only memory and ...

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Abstract

The invention discloses a method and system for deep peak load regulation of a thermoelectric unit. The method comprises the steps of: determining heating margin values of various electric load and critical electric loads of the unit at different outdoor temperatures; obtaining a function relationship between the heating margins and the outdoor temperatures under different electric loads, and a function relationship between the critical electric loads and the outdoor temperatures through curve fitting; carrying out fitting according to the predicted outdoor temperature value on the prediction day to obtain a function relationship between the heating margins of various electric loads of the unit on the prediction day and time; in combination with the heating network transmission time, determining the time when the unit begins to operate in the maximum heating capacity mode under the current load to store heat for a heating network and the time when the thermoelectric unit enters the deep peak load regulation state based on the function relationships; and controlling the operation mode of the thermoelectric unit based on the time. According to the method, thermoelectric decoupling can be achieved under the condition that equipment investment is not increased, the heating quality of the heating network can be guaranteed, and the operation flexibility and economical efficiency of the thermoelectric unit can be improved.

Description

technical field [0001] The invention relates to the technical field of deep peak regulation of thermoelectric units, in particular to a method and system for deep peak regulation of thermoelectric units. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In recent years, China's new energy development has been at the forefront of the world. Despite the rapid development of new energy sources such as wind power and photovoltaics, the difficulty of new energy consumption and grid connection due to the mismatch between resource-rich areas and power consumption areas, technical factors, and institutional obstacles is still a problem that plagues the development of the industry. [0004] The thermocouple and characteristics of the thermoelectric unit determine that the adjustment range of the thermoelectric unit’s electrical load is limited by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/02F24D3/10F24D19/10
CPCF24D3/02F24D3/1058F24D19/1015Y02E10/56
Inventor 张虎
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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