| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to reduce the harmonic waves of the entire organization by providing d DC bus for connecting DC stages to each other. SOLUTION: Filter capacitors 711, 731 are connected to filter capacitors 721, 741 via a DC bus 10, and further connected to the filter capacitors 712, 732, 722, 742 of the adjacent vehicle 32 via the bus 10. Furthermore, they are connected to the filter capacitors of another vehicle via the bus 10, and eventually connected to the filter capacitors 71n, 72n, 73n, 74n of 3n of the vehicle 3. Thus, when the total sum of the outputs of the entire inverters is equal to that of the outputs of the entire converters, the outputs of the converters can be controlled by the output independent from the corresponding inverter. That is, the converter 611 and the inverter 811 may not always be equal to the outputs of both because of the DC bus 10. Accordingly, the harmonic waves of the entire organization can be reduced. |
