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Heat supply network control loop based on fuzzy PID algorithm

A control loop and temperature control loop technology, applied in heating mode, heating system, household heating and other directions, can solve the problem of heating system nonlinearity, large time lag, changes in operating parameters, and abnormality in the distribution and regulation of heat energy transmission. Complex, complex operation management and adjustment control, etc., to achieve the effect of thermal demand

Inactive Publication Date: 2016-05-18
中国石化集团胜利石油管理局有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The above characteristics determine that the heating system has the characteristics of nonlinearity and large time lag, and it is a coupled multi-output-multi-input system, and the changes in operating parameters, heat energy

Method used

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  • Heat supply network control loop based on fuzzy PID algorithm
  • Heat supply network control loop based on fuzzy PID algorithm
  • Heat supply network control loop based on fuzzy PID algorithm

Examples

Experimental program
Comparison scheme
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Embodiment

[0092] There are 4 heat exchange stations in a community, with a heating area of ​​1.23 million square meters. According to the outdoor temperature and time compensation program, the electric valve is adjusted in real time to ensure the heat consumption of the community. At the same time, based on the collected water supply and return pressure, refer to the "secondary supply and return pressure difference control loop" and "secondary back pressure control loop" to realize the chained automatic operation of the circulation pump and the supplementary water pump.

[0093] In terms of energy consumption, the comparison with the regional average of combined heat and power in the same period last year is shown in the following table:

[0094]

[0095] In terms of resident room temperature, through comparative analysis with the same period last year, it was found that compared with the previous heating period, the average room temperature of users increased by 0.1°C, the proportio...

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Abstract

A heat supply network control loop based on the fuzzy PID algorithm comprises a secondary supply temperature control loop, a secondary supply return pressure control loop, a secondary return pressure control loop, a temperature control loop, a pressure control loop and a pressure difference control loop and has the advantages that on the basis of the PID control algorithm under fuzzy control, an outdoor temperature-supply water temperature control loop, a circulating pump pressure difference control loop and a constant-pressure water supplementation control loop are built, closed-loop control over a whole heat supply network is formed, branch multi-station control coarse regulation and single-station fine control are realized, the demand balance of the heat supply network is realized, and the thermal requirements of all heat consumers are met.

Description

technical field [0001] The invention relates to a heating network control loop, in particular to a heating network control loop based on fuzzy PID algorithm control. Background technique [0002] With the development of science and technology, the use of urban central heating systems is becoming more and more widespread. In the process of large-scale applications and experiments, a power supply system with combined heat and power as the main, regional boiler rooms as the supplement, and other heat sources as supplements has been formed. hot situation. [0003] The central heating system refers to the steam and hot water generated by a centralized heat source, which are supplied to a certain area through the heat pipe network to meet the heating requirements of heat users for heating, hot water supply, and air conditioning. and district heat users are composed of three parts. The basic task of the central heating system is to ensure the heat balance between the heat supply ...

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Application Information

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IPC IPC(8): F24D19/10
CPCF24D19/1009
Inventor 朱铁军赵红燕李忠波宋昊曲波王红卫
Owner 中国石化集团胜利石油管理局有限公司