Title:
CELL MULTIPLEX VOLTAGE INVERTER
Document Type and Number:
Japanese Patent JP2016059111
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that suppression of faulty stop occurrence in overvoltage or voltage shortage occurrence in a multiplex inverter is required.SOLUTION: An output determination signal generation part is provided for detecting a DC voltage of each of cell units, comparing the detected voltage with a threshold and outputting an output determination signal for each cell unit to a CPS control part. the output determination signal indicates detected voltage>threshold, the CPS control part determines the presence of overvoltage. At the time of a power running operation, if the cell unit is in a zero switching state, output of the cell unit is brought into a switching state. At the time of a regenerative operation, if an output voltage determination of the cell unit is the zero switching state the switching state of the cell unit is not changed and if the determination indicates any other state than zero switching, the cell unit is shifted to zero switching.SELECTED DRAWING: Figure 2
Inventors:
KEZUKA NOBUTAKA
Application Number:
JP2014181824A
Publication Date:
April 21, 2016
Filing Date:
September 08, 2014
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02M7/497; H02M7/48
Attorney, Agent or Firm:
Hiromichi Kobayashi
Uzawa Hidehisa
Uzawa Hidehisa