Power supply converter with rectification/inversion switching function
A technology of power conversion and inversion, which is applied in the direction of reversible conversion equipment, etc., which can solve the problems of rectification or inversion and high cost of rectification modules and inverter modules, and achieve the effect of reducing inventory quantity
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[0023] Such as figure 1 Shown is the structural block diagram of the power conversion device of the present invention, such as figure 2 The power conversion device shown is the situation when this kind of power conversion device is applied to single-phase rectification and inverter, and it is mainly composed of a single-phase full bridge circuit 10 and a control unit 13. At the AC end of the single-phase full-bridge circuit 10 is an AC filter 12 composed of inductors and capacitors to complete the filtering on the AC side; at the DC end of the single-phase full-bridge circuit 10, a capacitor 11 is used as a DC filter, Used to complete the filtering on the DC side.
[0024] The current detection unit 14 is used to detect the current signal of the AC terminal, plus the AC voltage and DC bus voltage signals detected by the single-phase AC voltage detection line 15 and the DC bus voltage detection line 16 respectively, and they are input into the control unit 13 together by its soft...
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