A back-to-back converter controller
A technology of back-to-back converters and controllers, which is applied in the direction of converting AC power input into AC power output, output power conversion devices, electrical components, etc., which can solve the problems of difficult design, unsatisfactory implementation effects, and lack of DSP controllers. Problems such as performance regulation function, to achieve the effect of convenient use and good practical value
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[0049] This embodiment provides a back-to-back converter controller, including a current sampling unit, a grid side voltage sampling unit, a DC side voltage sampling unit, a PWM control unit, a current inner loop control unit, a voltage outer loop control unit and a phase locked loop, The current sampling unit is connected to the current inner loop control unit, the grid-side voltage sampling unit is connected to the current inner loop control unit through a phase-locked loop, and the current inner loop control unit is connected to the PWM control unit through the voltage outer loop control unit. The side voltage sampling unit is connected to the voltage outer loop control unit, the controller is equipped with a back-to-back converter control model, and the controller is an FPGA controller.
[0050] The process of obtaining the back-to-back converter control model is as follows:
[0051] I, this embodiment is first to figure 2 The topological diagram of the three-phase volta...
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