Control system and control method for outdoor fan of air conditioner

Abstract

The invention provides a control system of an air conditioner outdoor fan and a control method of the control system, and relates to the field of control of air conditioner outdoor fans. The control system of the air conditioner outdoor fan comprises a detection module, a cold source system, a PLC module, a driving module and an operation control module, the detection module comprises a pressure detector, an indoor temperature sensor, a compressor temperature sensor, a coil pipe temperature sensor, a signal transmission unit and a current detection unit, and the cold source system comprises an active cold source and a passive cold source. The PLC module comprises a CPU (Central Processing Unit), a data storage unit, a data input unit, a digital simulation unit and an instruction output unit, the operation control module comprises an instruction receiving unit and a wind speed control unit, and the driving module comprises a PFC (Power Factor Correction) power supply, a power output module and an overcurrent protection unit. Different parameter values are selected according to different cold source systems to control rotation of the outdoor fan, and waste of manpower, electric energy and refrigerants is effectively avoided.

Description

technical field [0001] The invention relates to the control field of an air conditioner outdoor fan, in particular to a control system of an air conditioner outdoor fan and a control method thereof. Background technique [0002] The outdoor fan of the air conditioner is responsible for cooling or heating. The cooling source in the air conditioner changes its physical state under the action of the compressor and other driving devices, including changes in high-pressure gasification, low-temperature liquefaction, etc., and then realizes heat absorption and heat release to achieve refrigeration. and heating purposes. [0003] In the air conditioner, the most power-consuming is the cold source system. The power consumption of the large cold source system can reach several kilowatts, and the driving equipment in the cold source system can reach 200 kilowatts. At present, the main method of controlling the central air conditioner is simple However, this control method has great d...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a control system and a control method for an outdoor fan of an air conditioner, which solves the problem that when there are both active cooling sources and passive cooling sources in the air conditioner, it is not easy to simultaneously control the indoor temperature to maintain a constant temperature. human comfort level

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