Title:
INVERTER
Document Type and Number:
Japanese Patent JPH07143781
Kind Code:
A
Abstract:
PURPOSE: To prevent tripping even if a regenerative operating state is brought about by the wind energy.
CONSTITUTION: The inverter comprises a converter section 1 for producing DC voltage by smoothing the input voltage from an AC power supply 7 through a capacitor 2, an inverter section 3 for inverting the DC voltage into an AC voltage of predetermined frequency and driving a motor 4 for rotating an air- conditioning fan, an inverter control section 13 for determining a voltage reference and a frequency reference depending on a speed set value, and means 21-23 for increasing the speed set value gradually when the DC voltage exceeds a predetermined level.
Inventors:
YONEDA MASAO
ISHIZUKA TAKASHI
ISHIZUKA TAKASHI
Application Number:
JP28632693A
Publication Date:
June 02, 1995
Filing Date:
November 16, 1993
Export Citation:
Assignee:
TOSHIBA F A SYSTEM ENG
TOSHIBA CORP
TOSHIBA CORP
International Classes:
F24F11/02; H02M7/48; H02M7/72; H02P3/18; H02P27/06; (IPC1-7): H02P3/18; F24F11/02; H02M7/48; H02M7/72; H02P7/63
Attorney, Agent or Firm:
Noriyuki Noriyuki