Title:
POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP2021166421
Kind Code:
A
Abstract:
To provide a power conversion device capable of avoiding a power failure even if standard AC power is lost.SOLUTION: An output voltage control part 21 of a power conversion device comprises: a phase detection part 31 for calculating a voltage phase on the basis of a phase of AC power supplied to a power system; and a waveform control part 35 for generating a control signal which commands a frequency and the phase of the AC power on the basis of a voltage phase calculated by the phase detection part. A power conversion part converts power supplied from a power supply source into the AC power by the control signal generated in the waveform control part. The phase detection part detects the frequency of the AC power supplied to the power system, determines that AC power to be the standard of the frequency is not supplied to the power system when the detected frequency is not within a first frequency range which is previously set. The waveform control part controls the power conversion part to supply the power system with the AC power to be the standard of the frequency.SELECTED DRAWING: Figure 3
Inventors:
AKIYAMA YUKINA
TOBA KOJI
KAWACHI SHUNSUKE
KUDO YUKI
KASE TAKAHIRO
TOBA KOJI
KAWACHI SHUNSUKE
KUDO YUKI
KASE TAKAHIRO
Application Number:
JP2020068106A
Publication Date:
October 14, 2021
Filing Date:
April 06, 2020
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
TOSHIBA ENERGY SYSTEM & SOLUTION CORP
International Classes:
H02J3/08; H02J3/38; H02M7/48
Attorney, Agent or Firm:
Kiuchi Mitsuharu
Koichi Okuma
Katagiri Sadanori
Kanako Kiuchi
Koichi Okuma
Katagiri Sadanori
Kanako Kiuchi