POWER CONVERSION DEVICE AND TEST METHOD FOR SAME
FIG8 is a block diagram showing a configuration of a voltage command unit included in the control device shown in FIG1
FIG8 is a block diagram showing a configuration of a voltage command unit 50 included in control device 4. In FIG8, voltage command unit 50 includes a PI (Proportional Integral) controllers 51 to 53, a selector 54, switches S11 to S13, and adders 55 to 57.
block diagram
17
driver drivers
5
unit converters unit converter
56
Adder
57
Adder
52
PI controller
50
voltage command unit
54
selector
55
adders
['8. The power conversion device according to claim 1, wherein each of the three arms includes a plurality of unit converters, each of the unit converters includes the capacitor and the inverter, and a plurality of the inverters are cascaded.']