Title:
MULTI-WINDING MOTOR DRIVING SYSTEM, VARIABLE-FREQUENCY ELECTRIC DRIVE SYSTEM, PUMPING SYSTEM, FRACTURING DEVICE, AND WELL SITE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/137980
Kind Code:
A1
Abstract:
A multi-winding motor driving system of the present invention comprises a motor and a power unit. The motor has a plurality of mutually independent windings. The power unit comprises a rectification unit and a plurality of inversion units. The plurality of inversion units are in one-to-one correspondence with the plurality of windings of the motor in quantity, and each inversion unit supplies power to the corresponding one in the plurality of windings of the motor. The pumping system of the present invention comprises the multi-winding motor driving system and at least one plunger pump. The plunger pump and the multi-winding motor driving system are integrally mounted together, and the plunger pump is driven by the motor. A transmission input shaft of the plunger pump is directly and mechanically connected to a transmission output shaft of the motor or indirectly and mechanically connected by means of a clutch or a coupling. The fracturing device or well site device of the present invention comprises the pumping system, a liquid feeding manifold disposed at one side of the plunger pump, and a discharge manifold disposed at one or two ends of the plunger pump, etc.
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Inventors:
LI SHOUZHE (CN)
ZHONG JIFENG (CN)
XIE YUANJIE (CN)
ZHONG JIFENG (CN)
XIE YUANJIE (CN)
Application Number:
PCT/CN2022/101882
Publication Date:
July 27, 2023
Filing Date:
June 28, 2022
Export Citation:
Assignee:
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (CN)
International Classes:
H02P6/08; E21B33/13; E21B43/26; F04B49/06; F04B49/20; H02M1/088; H02M7/5387
Foreign References:
| CN114553062A | 2022-05-27 | |||
| CN108900136A | 2018-11-27 | |||
| CN2684460Y | 2005-03-09 | |||
| CN110513097A | 2019-11-29 | |||
| CN105207567A | 2015-12-30 | |||
| US20210102451A1 | 2021-04-08 |
Attorney, Agent or Firm:
BEIJING SUNHOPE INTELLECTUAL PROPERTY LTD. (CN)
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