Title:
ELEVATOR REGENERATIVE POWER ACCUMULATION CONTROL DEVICE AND REGENERATIVE POWER ACCUMULATION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2014/030210
Kind Code:
A1
Abstract:
An objective of the present invention is to obtain an elevator regenerative power accumulation control device and regenerative power accumulation control method whereby a cell with a maximum capacitance decline rate is prevented from entering a sustained overvoltage state, and it is possible to prevent cell degradation from being accelerated and a replacement period of a capacitor-type accumulation unit from being quickened. A charge-discharge control unit administers a total voltage value of a capacitor-type accumulation unit by a total voltage detection unit. When an overvoltage signal is received from an overvoltage detection circuit, the charge-discharge control unit interrupts charging of the capacitor-type accumulation unit, discharges the capacitor-type accumulation unit to a voltage whereat the overvoltage signal is not outputted, and changes a chargeable total voltage upper bound value of the capacitor-type accumulation unit to a voltage whereat the overvoltage signal is not outputted.
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Inventors:
ISHIGURO HIDETAKA (JP)
Application Number:
PCT/JP2012/071066
Publication Date:
February 27, 2014
Filing Date:
August 21, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
ISHIGURO HIDETAKA (JP)
ISHIGURO HIDETAKA (JP)
International Classes:
H02J7/00; B66B1/34
Foreign References:
| JP2008154392A | 2008-07-03 | |||
| JP2008005693A | 2008-01-10 | |||
| JP2009244171A | 2009-10-22 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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