Motor control method, control device and fan

A control method and technology of a control device, applied in the field of motor control devices and fans, can solve problems such as complex control algorithm requirements, influence on product reliability and stability, and increased cost of motor bodies and controllers, to ensure accuracy, The effect of reducing production cost and optimizing efficiency
CN106208862BActive Publication Date: 2018-07-27GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
Publication Date
2018-07-27

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Abstract

The invention provides a control method and a control apparatus for a motor, and a fan. The control method for the motor comprises the steps of detecting whether the phase current of the motor reaches a zero crossing point or not; and when it is detected that the phase current of the motor reaches the zero crossing point, adjusting the d-axis voltage of the motor to enable the phase voltage of the motor to be consistent with the phase of the phase current. By adoption of the technical scheme, the optimization of the motor efficiency can be ensured to satisfy the energy-saving control requirement; in addition, a hardware circuit also can be simplified, and the production cost of the product can be lowered; and meanwhile, the reliability and the stability of the product also can be improved.
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Description

technical field

[0001] The present invention relates to the technical field of motors, in particular to a motor control method, a motor control device and a fan. Background technique

[0002] As users have higher and higher requirements for energy saving, environmental protection and comfort of household appliances, DC frequency conversion technology is becoming more and more popular in the household appliance industry. DC frequency conversion technology usually uses permanent magnet synchronous motors. Compared with asynchronous motors and brushless DC motors, permanent magnet synchronous motors have better performance, but the cost of the motor body and controller has increased, and the requirements for control algorithms are also higher. quite complicated.

[0003] At the same time, since the outdoor fans of the multi-split air-conditioning system and heat pump air-conditioning system generally control the air volume with the frequency as the control target, it is also m...

Claims

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