HVAC CONTROL SYSTEM FOR HOUSEHOLD CENTRAL AIR CONDITIONING

摘要

An HVAC control system for a household central air conditioning, including an HVAC system controller, a centrifugal blower motor, a compressor motor, and an axial fan motor. The HVAC system controller includes an HVAC microprocessor, a sensor, an interface unit for motor control, a power supply part, and a signal processing circuit. The interface unit for motor control includes an inverter unit and a rotor position detection unit. At least one of the centrifugal blower motor, the compressor motor, and the axial fan motor is a permanent magnet synchronous motor in the absence of a motor controller. The HVAC microprocessor drives the permanent magnet synchronous motor in the absence of a motor controller via the inverter unit. The rotor position detection unit sends a rotor position signal of the permanent magnet synchronous motor in the absence of a motor controller to the HVAC microprocessor.

主权项

1. An HVAC control system for a household central air conditioning, comprising:
a) an HVAC system controller, the HVAC system controller comprising an HVAC microprocessor, a sensor, an interface unit for motor control, a power supply part, and a signal processing circuit; the interface unit for motor control comprising an inverter unit and a rotor position detection unit; b) a centrifugal blower motor; c) a compressor motor; and d) an axial fan motor;wherein
the power supply part supplies power to each circuit part; the sensor sends a detected signal to the HVAC microprocessor via the signal processing circuit; at least one of the centrifugal blower motor, the compressor motor, and the axial fan motor is a permanent magnet synchronous motor in the absence of a motor controller; the HVAC microprocessor drives the permanent magnet synchronous motor in the absence of a motor controller via the inverter unit; and the rotor position detection unit sends a rotor position signal of the permanent magnet synchronous motor in the absence of a motor controller to the HVAC microprocessor.