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Title:
METHOD FOR PROCESSING REGENERATIVE POWER OF INVERTER UNIT AND INVERTER UNIT USED FOR THE SAME
Document Type and Number:
Japanese Patent JP2004229376
Kind Code:
A
Abstract:

To bring the driving times of switching elements in a regenerative circuit of a DC voltage into coincidence particularly if DC voltages converted into AC by inverters in inverter units are commonly connected to the respective inverter units in paralleling (common bus system) of a plurality of the inverter units.

When the voltage value of the DC voltage exceeds a regenerative brake starting voltage, a regenerative brake operation start enabling signal is output from the inverter unit 2 to other inverter unit 2a. The inverter unit 2 processes to be delayed by using a timer built-in a microcomputer up to the regenerative brake operation start enabling time of the other inverter unit 2a. The other inverter unit 2a recognizes the regenerative brake operation start enabling signal input from the inverter unit 2 and processes to delay by using the timer built in the microcomputer from the time point of recognizing the input signal up to the regenerative brake operation enabling time simultaneously at the inverter unit 2.


Inventors:
OSADA HIDEKI
Application Number:
JP2003000012162
Publication Date:
August 12, 2004
Filing Date:
January 21, 2003
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02M7/48; H02M7/493; H02P3/18; H02P5/74; H02P27/06; (IPC1-7): H02M7/48; H02P3/18; H02P7/63; H02P7/74
Attorney, Agent or Firm:
酒井 宏明



 
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