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Title:
INDUCTION HEATING DEVICE, METHOD FOR CONTROLLING THE SAME AND PROGRAM
Document Type and Number:
Japanese Patent JP2010245002
Kind Code:
A
Abstract:

To perform optimum ZCIH control by actualizing current amplitude control and current synchronizing control in a lamp, with respect to each power supply unit.

When performing the current amplitude control and the current synchronization control of an inverter 18, a dq control method is used for independently controlling dq components of a current and voltage, separately. A dq operation part 71 finds a d-axis current component Id and a q-axis current component Iq from the output current (i) of the inverter 18. An adder 72 finds a current difference between a target current Io and the d-axis current component Id, and a PI control part 74 finds a d-axis voltage component Vd from the current difference. The PI control part 75 finds a q-axis voltage component Vq so that the adder 73 sets the q-axis current component Iq to be zero. The d-axis voltage component Vd and the q-axis voltage component Vq are converted into a current-carrying width δ and a voltage phase angle θ by a dq-δθ conversion part 76 and is transmitted to the inverter 18. The inverter 18 performs the current amplitude control and the current synchronization control by the current-carrying width δ and the voltage phase angle θ, respectively.


Inventors:
Uchida, Naoki
Okazaki, Yoshihiro
Ozaki, Kazuhiro
Fujita, Hideaki
HA, Pham Ngoc
Application Number:
JP2009000095553
Publication Date:
October 28, 2010
Filing Date:
April 10, 2009
Export Citation:
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Assignee:
MITSUI ENG & SHIPBUILD CO LTD
TOKYO INSTITUTE OF TECHNOLOGY
International Classes:
H05B6/06; H02M7/48; H05B6/12; H05B6/44
Domestic Patent References:
JP2004146283A2004-05-20
JP2008243546A2008-10-09
JP2007026750A2007-02-01
JPH0947664A1997-02-18
JP2007274829A2007-10-18
JP2000116174A2000-04-21
JPH11215602A1999-08-06
JP2004146283A2004-05-20
Attorney, Agent or Firm:
磯野 道造