Title:
INVERTER DEVICE AND INVERTER DEVICE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/176256
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent displacement of the frequency of the output of an inverter unit from a resonant frequency even if performing output control, and to improve the characteristics of tracking a load of which the resonant frequency varies. An inverter device (10) is a PWM-controlled voltage-type inverter connected to a resonant load (200) and has: an inverter unit (106) connected to the resonant load (200) and driven by an inverter drive signal (Q, NQ); and a control means (12) for controlling the operation of the inverter unit (106). The control means (12), using a pulse signal having a pulse width shorter than the cycle of the resonant frequency of the resonant load (200) as the inverter drive signal (Q, NQ), starts driving of the inverter unit (106) at a frequency away from the resonant frequency as a starting point. Then, the control means (12) shifts the frequency of the inverter drive signal (Q, NQ) to the resonant frequency or a vicinity of the resonant frequency and performs control so that the frequency of the inverter drive signal (Q, NQ) substantially matches the resonant frequency.
Inventors:
ISHIMA TSUTOMU (JP)
TANAI YOSHIO (JP)
MORIGAMI KOICHI (JP)
TAKADA TARO (JP)
TSUJI HIROKI (JP)
ITO MASAHIRO (JP)
SHIGENO DAISAKU (JP)
TANAI YOSHIO (JP)
MORIGAMI KOICHI (JP)
TAKADA TARO (JP)
TSUJI HIROKI (JP)
ITO MASAHIRO (JP)
SHIGENO DAISAKU (JP)
Application Number:
PCT/JP2019/000660
Publication Date:
September 19, 2019
Filing Date:
January 11, 2019
Export Citation:
Assignee:
SHIMADA RIKA KOGYO KK (JP)
International Classes:
H02M7/48; H05B6/06
Foreign References:
| JP2007026750A | 2007-02-01 | |||
| JPH0495382A | 1992-03-27 | |||
| JP2015225851A | 2015-12-14 |
Attorney, Agent or Firm:
UESHIMA Junichi (JP)
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