Topology and constant-frequency voltage hysteresis control of multi-level inverter
A multi-level inverter, hysteresis control technology, applied in the direction of regulating electrical variables, control/regulating systems, instruments, etc., can solve the problems of difficult to achieve switching device driving, unpredictable duty cycle, and unstable switching frequency.
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[0050] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
[0051] Such as Figure 11 , 12 As shown, the voltage hysteresis control of the DC / DC converter using the three-level inverter, Figure 11 For direct voltage hysteresis control, Figure 12 It is an indirect voltage hysteresis control. The three-level inverter used is composed of four switching devices anti-parallel fast diodes, and the switching device is S 1H , S 2H , S 1L , S 2L , the fast diodes connected in ...
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