Title:
VARIABLE-SPEED POWER DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/038628
Kind Code:
A1
Abstract:
This variable-speed power device is provided with: a synchronous machine having a stator provided with an armature winding to form an armature, a first rotor having magnetic poles, and a second rotor provided between the first rotor and the stator to drive a load; an induced voltage vector estimation unit that estimates the electrical angle of an induced voltage generated in the armature on the basis of a current and a voltage for driving the synchronous machine; and an electric power converter that adjusts the frequency of electric power for driving the synchronous machine on the basis of the estimated electrical angle of the induced voltage.
Inventors:
HIROE TAKAHARU (JP)
WAKASA TSUYOSHI (JP)
WAKASA TSUYOSHI (JP)
Application Number:
PCT/JP2023/005554
Publication Date:
February 22, 2024
Filing Date:
February 16, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
H02P21/18; H02K16/02
Domestic Patent References:
| WO2020174936A1 | 2020-09-03 | |||
| WO2019022100A1 | 2019-01-31 |
Foreign References:
| JP7090828B1 | 2022-06-24 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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