H-bridge five-level active neutral point clamped inverter and dead zone effect suppression method
A dead-zone effect, five-level technology, applied to electrical components, AC power input conversion to DC power output, output power conversion devices, etc., can solve unfavorable motor insulation, increase system volume, cost and control complexity, etc. problem, to achieve the effect of suppressing the problem of multiple voltage jumps, increasing complexity, and being easy to realize by software programming
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[0032] Below in conjunction with accompanying drawing and example the present invention is described in further detail.
[0033] refer to figure 1 As shown, an H-bridge five-level active neutral point clamp (5L-ANPC) inverter disclosed by the present invention is composed of left and right bridge arms with completely identical structures, and each bridge arm is a five-level Active neutral point clamp topology, the two ends of the DC bus of the left and right bridge arms are connected in parallel and then respectively connected to the first voltage dividing capacitor C d1 and the second divider capacitor C d2 , the first divider capacitor C d1 and the second divider capacitor C d2 in series.
[0034] The five-level active neutral point clamp topology consists of switching devices S 1L / S 1R , Switching device S 1L ' / S 1R ', switching device S 2L / S 2R , Switching device S 2L ' / S 2R 'The first branch formed by sequential connection is formed by the switching device S...
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