Title:
INVERTER CIRCUIT FOR AC ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JPH03190506
Kind Code:
A
Abstract:
PURPOSE: To reduce the size and the cost by connecting N units of VVVF transistor inverters in series and grounding the neutral point at which the inverters are separated in halves.
CONSTITUTION: N(even number) units of VVVF inverters 6 are connected in series such that the DC intermediate circuit voltage can be made high. Since the voltage of the DC intermediate circuit increases when a plurality of inverters are connected in series, the intermediate point of series circuit of two inverters is grounded thus lowering the ground voltage. By such arrangement, the DC intermediate circuit voltage can be made high, output current of rectifier can be decreased correspondingly resulting in a low cost main rectifier having reduced size.
Inventors:
KINOSHITA SHIGENORI
IWAMURA KOJI
MOROHOSHI YUKINOBU
IWAMURA KOJI
MOROHOSHI YUKINOBU
Application Number:
JP32709389A
Publication Date:
August 20, 1991
Filing Date:
December 19, 1989
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
B60L9/24; H02M7/493; (IPC1-7): B60L9/24; H02M7/48
Attorney, Agent or Firm:
Namio Akio (1 person outside)