Title:
METHOD FOR CONTROLLING MULTI-LEVEL POWER CONVERTER AND MULTI-LEVEL POWER CONVERTER
Document Type and Number:
Japanese Patent JP2017163622
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress a voltage ripple of a flying capacitor and control a voltage of the flying capacitor.SOLUTION: The multi-level power converter detects or estimates a load current Id1 at a common connection point of third and fourth common switches Sf3 and Sf4 and a load current Id2 at a common connection point of seventh and eighth common switches Sf7 and Sf8, and on the basis of the load currents Id1 and Id2, voltages Vc1 and Vc2 of first and second flying capacitors C1 and C2, and a capacitor voltage command value E, selects ON and OFF patterns of first, second, third and fourth common switches Sf1, Sf2, Sf3, and Sf4.SELECTED DRAWING: Figure 1
Inventors:
HASEGAWA ISAMU
Application Number:
JP2016042935A
Publication Date:
September 14, 2017
Filing Date:
March 07, 2016
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02M7/483
Domestic Patent References:
| JP2015047056A | 2015-03-12 |
Foreign References:
| WO2015030152A1 | 2015-03-05 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Uzawa Hidehisa
Uzawa Hidehisa