PMSM (permanent magnet synchronous motor) grid-connected operation control method and system, and quasi-synchronization controller
A technology for permanent magnet synchronous motors and motor controllers, which is applied in the direction of synchronous generator control, control systems, and control generators. The effect of improving efficiency and reducing equipment investment
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[0045] In order to make the object, technical solution and advantages of the present invention clearer, 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, not to limit the present invention.
[0046] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0047] An embodiment of the present invention provides a method for controlling the grid-connected operation of a permanent magnet synchronous motor, such as figure 1 As shown, the control method includes the following steps:
[0048] Step S101. Obtain grid frequency and grid voltage.
[0049] In this step, specifically, the AC signal on the grid side is collected, and the AC signal on the grid side is also an input signal of the motor controller.
[0050] Step S102. ...
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