Title:
DRIVE DEVICE AND CRANE USING SAME, AND DRIVE DEVICE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2015/111167
Kind Code:
A1
Abstract:
A drive device (200) comprises: a plurality of main motors (123A, 123B, 123C, 123D) each having a rated capacity capable of coping with a rated load by the main motors, the number of which is reduced by at least one and performing a main operation in cooperation with each other; a plurality of main inverters (221A, 221B, 222A, 222B, 223A, 223B, 224A, 224B) having capacities corresponding to the main motors; converters (211, 212, 213, 214) having capacities corresponding to the main inverters; an auxiliary motor (133) for performing an auxiliary operation; and a control unit (230). At least one converter or main inverter is connected to the auxiliary motor (133) side.
Inventors:
FUJISAWA NOBORU (JP)
Application Number:
PCT/JP2014/051395
Publication Date:
July 30, 2015
Filing Date:
January 23, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND MACH TECH (JP)
International Classes:
H02P5/74
Foreign References:
| DE102004010988A1 | 2005-09-29 | |||
| JPS5143815U | 1976-03-31 | |||
| JPH07194187A | 1995-07-28 | |||
| JPS58148694A | 1983-09-03 | |||
| JPS4926710A | 1974-03-09 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
Download PDF:
Previous Patent: POLYMER FOR POSITIVE ELECTRODE ACTIVE MATERIAL COATING OF LITHIUM ION BATTERIES
Next Patent: SADDLED VEHICLE
Next Patent: SADDLED VEHICLE