Central air conditioner energy control system

Abstract

The invention provides a central air conditioner energy control system. The system is composed of a terminal server, a control cabinet, an air conditioner host, a pump set and a cooling tower; a PLC in the control cabinet autonomously check a whole system configuration device in the normal and reasonable running process; then by means of a terminal server and an air conditioner host, the overall energy consumption is acquired, designed, subjected to hardware control, modeling and analysis, finally, the matching condition of device configuration and the actual operation condition is analyzed, then reasonable parameters for implementing full load and high efficiency running are designed, in this way, the energy utilizing rate of the whole air conditioner system can be improved, pump set energy waste is controlled, and the energy saving purpose is achieved. The pump set is directly controlled through a frequency converter, so that a user can know the running state of the pump set very well without walking to the front end of the device. The system is reasonable in design, easy and convenient to operate, capable of adjusting, optimizing and performing information feedback on the wholeair conditioner control system, and suitable for being popularized in various central air conditioner system control fields.

Description

technical field [0001] The invention relates to a central air-conditioning energy control system, which belongs to the technical field of central air-conditioning energy control equipment. Background technique [0002] With the continuous development and progress of science and technology, the rapid rise and development of modern buildings has become an inevitable condition for the rapid growth of the national economy. The large-scale, intelligent and multi-functional modern buildings have led to a wide variety of electromechanical equipment in buildings. , the technical performance is complicated, the repair service and maintenance items are constantly increasing, and the management work is beyond the ability of human beings. The use of automatic monitoring system technology and computer management has become a new type of management method. [0003] The control technology of the central air-conditioning machine room control system is roughly divided into three types: fuzzy...

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Problems solved by technology

Fuzzy control is a control method that uses the basic ideas and theories of fuzzy mathematics. It does not require a mathematical model of the controlled object, but the control accuracy is not high, and problems such as "rule explosion" are prone to occur; most of the single equipment control is concentrated on the single equipment of the air conditioning system In terms of energy-saving control, although the energy-saving effect of independent equipment is obvious, from the perspective of the entire system, due to the lack of specific energy-saving solutions for the system, the ideal energy-saving effect cannot be obtained. Since the central air-conditioning system is a highly coupled working system, often It is because the energy consumption of this equipment decreases, but the energy consumption of other equipment increases, which seriously affects the overall energy saving effect of the central air conditioning system; the unit group control is to realize centralized control of chillers, refrigeration pumps, cooling pumps, cooling tower fans and other equipment However, in the actual application process of this system, due to the imperfect system operation strategy, it only performs simple interlocking start and stop control for each equipment, resulting in frequent start and stop of air conditioning equipment, resulting in air quality at the end of the central air conditioner. A series of questions

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