Title:
DRIVE CONTROL DEVICE FOR DRIVE SYSTEM INCLUDING VERTICAL CARRIER MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/042004
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a drive control device for a drive system including a vertical carrier machine that can effectively utilize regenerated power produced by a vertical carrier machine having a high regenerative operating rate. The invention comprises: a drive control device (A) for a regeneration-based electric motor (M1); a drive control device (B) for a power-based electric motor (M2); and a regenerated power storage capacitor (12) connected, via a third inrush current suppression circuit (11) that connects a third resistance (R3) and a switch (SW3) in series, between a positive terminal (P11) and a negative terminal (N1) of the DC output line of a converter (1) in a first inverter (INV1) of the drive control device (A). The capacitor (12) has a capacitance and a DC internal resistance such that during a series of operations of the regeneration-based electric motor (M1), within the operation time period when the maximum regeneration energy is produced, the charging current flowing during storage of the regenerative energy produced by the regeneration-based electric motor (M1) yields a current value that can produce the braking torque needed to control the speed of the regeneration-based electric motor (M1).
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Inventors:
MATSUSHITA KATSUMI (JP)
Application Number:
PCT/JP2013/072898
Publication Date:
March 20, 2014
Filing Date:
August 27, 2013
Export Citation:
Assignee:
NAKANISHI METAL WORKS CO (JP)
International Classes:
B66F7/02; B66B17/28; B65G43/00; B65G47/57; B66B1/06
Foreign References:
| JP2008148376A | 2008-06-26 | |||
| JPH06189595A | 1994-07-08 | |||
| JP2010168154A | 2010-08-05 | |||
| JP2007001712A | 2007-01-11 | |||
| JP2011230864A | 2011-11-17 |
Attorney, Agent or Firm:
YANAGINO Takao et al. (JP)
Takao Yanagino (JP)
Takao Yanagino (JP)
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