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Central air-conditioning energy conserving fuzzy controlling method and fuzzy controller thereof

A technology of fuzzy controller and central air conditioner, which is applied in adaptive control, general control system, control/regulation system, etc., can solve the problems of complex mathematical model, difficult control problem, difficult control effect, etc. The effect of equipment failure, reducing equipment noise and improving energy efficiency

Inactive Publication Date: 2004-03-17
GUIZHOU HUITONG HUACHENG
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AI Technical Summary

Problems solved by technology

For such a system, it is difficult to achieve a good control effect no matter using the classic PID control or various algorithms of modern control theory.
[0007] For a multi-parameter, nonlinear, time-varying and complex system with strong coupling between parameters, such as a central air conditioner, it is generally difficult to describe it with an accurate mathematical model or the resulting model is either too complex or relatively rough, with accuracy as the main feature The classical mathematics of this kind of control problem is often difficult to work
[0008] However, a skilled operator or technician, relying on his own experience, relying on the observation of his eyes, ears and other sensory organs, through the thinking judgment of the brain, gives the control amount, and can receive satisfactory results through manual operation. Control effect

Method used

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  • Central air-conditioning energy conserving fuzzy controlling method and fuzzy controller thereof
  • Central air-conditioning energy conserving fuzzy controlling method and fuzzy controller thereof
  • Central air-conditioning energy conserving fuzzy controlling method and fuzzy controller thereof

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Embodiment Construction

[0034] Embodiments of the invention:

[0035] (1) Fuzzy controller

[0036] Refer to attached figure 1 , the fuzzy controller of the present invention comprises: microcomputer (1), input circuit (2), output circuit (3), protection circuit (4), communication interface circuit (5) and power supply circuit (6), control software is installed in Inside the microcomputer (1).

[0037] Microcomputer (1) adopts Intel P4 processor 1.8GHz, memory 256MB, hard disk 40GB. The fuzzy control algorithm is realized by the control software.

[0038] The display device supports more than 1024×768 pixels and more than 16-bit enhanced color.

[0039] The input circuit (2) adopts AD7896 single-chip microcomputer to form A / D and level conversion circuit. The fuzzy controller obtains the semaphore from the controlled object through the input circuit.

[0040]The output circuit (3) adopts P87LPC768 single-chip microcomputer to form D / A and level conversion circuit. The fuzzy controller sends it...

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Abstract

The invention discloses a central air-conditioning energy conserving fuzzy controlling method and fuzzy controller thereof, comprising a microcomputer, input circuit, output circuit, protection circuit, communication interface circuit, power supply and control system solidified in the microcomputer. The controller can simulate the decision-making process of the technical specialist to solve the complex problems in the air-conditioner operation. The control by the invention conforms with the complexity, dynamic and fuzzy feature of the central air-conditioner.

Description

Technical field: [0001] The invention belongs to intelligent control equipment of a central air-conditioning energy-saving control system, in particular to a fuzzy control method and device for energy-saving control of a central air-conditioning system. technical background: [0002] At present, with the increasing shortage of energy in the world, in the design and operation of central air-conditioning systems, the design and application of energy-saving control systems have attracted more and more attention. [0003] In recent years, with the emergence of high-power power electronic devices, the miniaturization and practicalization of frequency converters have been promoted. In order to reduce energy waste in central air-conditioning systems, people have begun to use frequency converters to control water pumps and fans in air-conditioning systems. The acquisition of pressure difference and temperature adopts programmable logic controller (PLC), and performs PI (proportional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00G05B13/02
CPCF24F11/006G05B13/0275F24F11/30F24F11/62F24F11/38
Inventor 蔡小兵郭林袁立新张黔阳
Owner GUIZHOU HUITONG HUACHENG
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