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Set start/stop optimized controller based on side senser on-line fault diagnosis for air conditioner water

A fault diagnosis and sensor technology, applied in heating and ventilation control systems, space heating and ventilation, household heating, etc., can solve problems such as difficulty in detecting multiple sensor faults, difficulty in online diagnosis, and difficulty in quantifying faults, and achieve savings. The effect of diagnosis cost, recovery of economic losses, and shortening of diagnosis cycle

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0004] Some current fault diagnosis methods such as model-based and pattern-recognition-based methods have the following shortcomings: first, it is difficult to detect multiple sensor faults; second, there are certain difficulties in quantifying faults; third, it is difficult to carry out online diagnosis

Method used

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  • Set start/stop optimized controller based on side senser on-line fault diagnosis for air conditioner water

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Embodiment Construction

[0014] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, the present invention mainly includes an input module 1, a steady-state data judging module 2, a fault detection module 3, a flow sensor fault diagnosis module 4, a temperature sensor fault diagnosis module 5, a confidence judgment module 6, a data recovery module 7, and unit operation The number optimization module 8 , the optimization selection module 9 for start-up and shutdown units, and the output module 10 .

[0016] The output end of the input module 1 is electrically connected to the input end of the steady-state data judgment module 2, the output end of the steady-state data judgment module 2 is electrically connected to the input end of the fault detection module 3, and the output end of the fault detection module 3 is connected to the flow sensor failure The input end of diagnosis module 4 is ...

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Abstract

The fault diagnosing controller includes mainly input and stable state data judgement module, fault detecting module, flow meter sensor fault diagnosis module, temperature sensor fault diagnosis module, confidence judgment module, data restoring, running set number optimizing module, module for optimizing selection of powdered sets and stopped sets, output, etc. The fault diagnosing control adopts statistical mathematics process based on conversation of energy and conversation of mass. The fault diagnosing controller of the present invention can diagnose the fault in sensors, judge the position and size of the fault, and optimize, select and control based on the diagnosis result to reach the aim of saving energy.

Description

Technical field: [0001] The present invention relates to a unit start-stop optimization controller based on online fault diagnosis of air-conditioning refrigerant water side sensors, in particular to a diagnostic controller that optimizes unit start-stop and saves energy after online diagnosis of sensors using statistical mathematics methods The invention belongs to the technical field of building environment equipment and control. Background technique: [0002] With the continuous development of the world's economic level and technological level, heating ventilation and air conditioning (HVAC, Heating Ventilating and Air-Conditioning) systems in modern buildings have been more and more widely used, and the use of central air conditioning has improved on the one hand. It improves people's working and living conditions, but on the other hand it consumes huge energy. With the increasingly widespread application of building intelligent control systems, optimal control and ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02
Inventor 晋欣桥杜志敏
Owner SHANGHAI JIAO TONG UNIV
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