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AssigneeHitachi Construction Machinery Co., Ltd.
InventorsKazuo Nishihama, Masatoshi Yoshimura, Kosuke Matsuo, Satoru Kaneko, Tokuma Ikegami, Seiji Ishida, Toshihiko Watanabe
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It is an object of the present invention to provide a drive system including an induction generator comprising some primary windings that has a main winding and an auxiliary winding, the drive system being capable of supplying electric power required by an auxiliary inverter, even in a regenerative mode of operation in which only the auxiliary winding is energized. The maximum current value of a converter for power generating is set on the basis of the maximum output power of the auxiliary winding of the induction generator and the minimum voltage applied to the auxiliary winding unless a traction inverter is in a regenerative mode of operation, and the non-load current value of the induction generator is set such that the maximum current in the auxiliary winding under the situation of the traction inverter being in the regenerative mode of operation does not exceed the maximum current in the converter for power generating.
A drive system comprising:
Dependencies are inferred from the claim text.