Method for providing given frequency in motor starting phase
A motor start-up and stage technology, which is applied in the field of providing a given frequency during the motor start-up phase, can solve problems such as power grid impact, achieve smooth start, reduce start-up current, and avoid start-up over-current tripping
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[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] refer to figure 2 , which shows the flow of an embodiment of the method for providing a given frequency during the motor startup phase of the present invention, which specifically includes the following steps:
[0028] Step 201: Divide the motor starting process into an initial phase, a linear acceleration phase and an end phase;
[0029] Step 202: In the initial stage, the provided given frequency increases from 0, and the acceleration of the given frequency gradually increases;
[0030] Step 203: In the linear acceleration phase, provide a given frequency with a constant acceleration;
[0031] Step 204: In the final stage, the acceleration at the given frequency gradually decreases, and when the target frequency of the...
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