Title:
FREQUENCY CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/083055
Kind Code:
A1
Abstract:
Disclosed is a frequency conversion system. The frequency conversion system comprises a frequency converter, and a regulation and control device, the frequency of which is adjusted by the frequency converter. The frequency conversion system further comprises a processing module, which is configured to: respectively acquire the current operation frequency of the regulation and control device and the current output current of the frequency converter; call a pre-set function of the efficiency of the frequency converter with respect to the operation frequency of the regulation and control device and the output current; and calculate the efficiency α of the frequency converter according to the current operation frequency, the current output current and the pre-set function.
Inventors:
SHI JINGFENG (CN)
SHI LEI (CN)
CHEN QIANG (CN)
LU HAIBIN (CN)
CAO FALI (CN)
SHI LEI (CN)
CHEN QIANG (CN)
LU HAIBIN (CN)
CAO FALI (CN)
Application Number:
PCT/CN2021/081677
Publication Date:
April 28, 2022
Filing Date:
March 19, 2021
Export Citation:
Assignee:
QINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD (CN)
International Classes:
H02P27/04; G01R21/00; G01R21/06
Foreign References:
| CN112032938A | 2020-12-04 | |||
| CN112367003A | 2021-02-12 | |||
| CN107064616A | 2017-08-18 | |||
| CN106123251A | 2016-11-16 | |||
| CN103236816A | 2013-08-07 | |||
| JPH06276797A | 1994-09-30 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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