Wire feeder control method, controller and storage medium
A control method and wire feeder technology, which is applied in computer control, program control, general control system, etc., can solve the problem that the drive frequency of the power tube in the control of the wire feeder cannot be too high, the adjustment speed of the wire feeder is slow, and the dynamics of the wire feeder Slow response and other issues to achieve the effect of improving dynamic response performance, solving noise, and avoiding noise
Active Publication Date: 2021-03-16
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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Problems solved by technology
The existing wire feeder back EMF feedback method to control the wire feeder uses the driving dead time to sample the back EMF. In order to obtain a stable and reliable back EMF voltage, the driving frequency of the wire feeder control power tube should not be too high. High, this brings two problems. On the one hand, the drive frequency is low, and the wire feeder will generate noise when it is working. On the other hand, the drive frequency is low, and the adjustment speed of the wire feeder will be slow, resulting in the dynamic response just slow
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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0018] figure 1 It is a flow chart of a wire feeder control method provided by the embodiment of the present invention. This embodiment is applicable to the case where the high-frequency drive motor works. The method can be executed by the controller of the motor. The method specifically includes the following steps:
[0019] S110. The controller intermittently outputs a high-frequency driving signal, wherein the frequency of the high-frequency driving signal is greater than 20 KHz.
[0020] Wherein, the wire fee...
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The embodiment of the invention discloses a wire feeder control method, a controller and a storage medium. The method comprises: a controller outputting a high-frequency driving signal at intervals, and the frequency of the high-frequency driving signal being larger than 20 KHz; the controller sampling back electromotive force of the motor during the period of not outputting the high-frequency driving signal; and the controller adjusting the high-frequency driving signal according to the back electromotive force. According to the embodiment of the invention, the high-frequency driving signal is output through the gap, the driving frequency of the motor is improved, and the motor is prevented from generating noise. The back electromotive force of the motor is collected within the interval time when the high-frequency driving signal is not output, and the interval time is adjustable, so that the turn-off peak time can be avoided, and a stable counter electromotive force signal is obtained. Meanwhile, the driving signal with higher frequency is adopted, so that the speed of adjusting the driving signal of the next period based on the driving signal of the previous period is more timely, namely, the updating speed of the driving signal of the motor is improved, and the dynamic response performance of the motor is improved.
Description
technical field [0001] The embodiments of the present invention relate to the field of welding power sources, and in particular to a wire feeder control method, a controller and a storage medium. Background technique [0002] With the popularization of digitalization of welding power supply, the performance of welding power supply has been greatly improved, and the requirements for wire feeder are getting higher and higher. The existing wire feeder back EMF feedback method to control the wire feeder uses the driving dead time to sample the back EMF. In order to obtain a stable and reliable back EMF voltage, the driving frequency of the wire feeder control power tube should not be too high. High, this brings two problems. On the one hand, the drive frequency is low, and the wire feeder will generate noise when it is working. On the other hand, the drive frequency is low, and the adjustment speed of the wire feeder will be slow, resulting in the dynamic response just slow. ...
Claims
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 不公告发明人
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG