Start control method and device of motor and air conditioner

A motor and controller technology, applied in the field of motors, can solve the problems of demanding current sampling accuracy, large power of the outdoor fan, and large moment of inertia, so as to improve the probability of successful startup, achieve precise control, and enhance adaptability and robustness. sexual effect

Active Publication Date: 2015-07-29
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +2
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Problems solved by technology

This method has strict requirements on the accuracy of current sampling. If the current sampling is inaccurate, it will greatly affect the starting effect, and there is a process of initial positioning of the rotor. However, due to the large power and large moment of inertia of the external fan used in multi-line, this method method does not apply

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  • Start control method and device of motor and air conditioner
  • Start control method and device of motor and air conditioner
  • Start control method and device of motor and air conditioner

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Embodiment Construction

[0056] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0057] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0058] figure 1 A schematic flow chart of a starting control method of an electric motor according to an embodiment of the present invention is shown.

[0059] Such as figure 1 As shown, the start...

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Abstract

The invention provides a start control method and device of a motor and an air conditioner. The start control method of the motor includes judging whether revolving speed of the motor is up to the first preset revolving speed or not after the motor is started according to a received start command; if the revolving speed of the motor falls short of the first preset revolving speed, controlling the revolving speed of the motor by an open-loop control way; if the revolving speed of the motor is up to the first preset revolving speed, controlling the revolving speed of the motor by a closed-loop control way. Adaptability and robustness of the motor under different conditions are improved, the start process of the motor is accurately controlled, and probability of successful starting of the motor is increased advantageously.

Description

technical field [0001] The present invention relates to the technical field of electric motors, in particular, to a motor start-up control method, a motor start-up control device and an air conditioner. Background technique [0002] With the concept of energy saving and environmental protection deeply rooted in the hearts of the people, in recent years, high-efficiency products such as multi-connected air conditioners and air energy heat pumps with significant energy saving effects have attracted more and more attention. Based on the requirements of energy efficiency and control performance, vibration and noise, etc., the outdoor fans installed on the outdoor units of multi-connected air conditioners and air energy heat pumps are becoming more and more popular as permanent magnet DC motors with sensorless vector control. Due to the various needs of users, the external fan has top air outlet, side air outlet, and even starts with static pressure. At the same time, before the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/18
Inventor 周超刘莉华王豪浩
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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