Double-winding electric propulsion system and ship

A technology of electric propulsion and double winding, which is applied in the direction of ship propulsion, control system, propulsion components, etc. It can solve the problems of propulsion function failure, safe and reliable navigation hazards, etc., and achieve the effect of maintaining propulsion capability, easy promotion and implementation, and high feasibility

Pending Publication Date: 2020-09-29
中船邮轮科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that when the power supply circuit of a single inverter + winding fails, the propulsion system will not be paralyzed. However, when the two circuits of the system have cross faults, the propulsion function will still be completely disabled, which brings safety and reliability to maritime navigation. Hidden danger

Method used

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  • Double-winding electric propulsion system and ship
  • Double-winding electric propulsion system and ship
  • Double-winding electric propulsion system and ship

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0039] These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment given as non-limiting examples with reference to the accompanying drawings.

[0040] It should also be understood that, while the application has been described with reference to a few specific examples, those skilled in the art can certainly implement many other equivalents of the application, which have the features of the claims and are thus located. within the limited scope of protection.

[0041] The above and other aspects, features and advantage...

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PUM

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Abstract

The embodiment of the invention discloses a double-winding electric propulsion system and a ship. The propulsion system comprises a first frequency converter, a second frequency converter, a switchingdevice and a double-winding motor. The switching device comprises a first change-over switch, a second change-over switch, a first parallel wiring row and a second parallel wiring row. The first change-over switch is electrically connected with the first parallel wiring row when in a non-switching state, the first change-over switch is electrically connected with the second parallel wiring row when in a switching state, the second change-over switch is electrically connected with the first parallel wiring row when in the non-switching state, and the second change-over switch is electrically connected with the second parallel wiring row when in the switching state; the first parallel wiring row is electrically connected with a first winding of the double-winding motor; the second parallelwiring row is electrically connected with a second winding of the double-winding motor; and a loop interlocking unit is arranged between the first change-over switch and the second change-over switch.Safety and reliability of the propulsion system can be improved, and optimization cost is low.

Description

technical field [0001] The invention relates to the technical field of electric propulsion, in particular to a double-winding electric propulsion system and a ship. Background technique [0002] With the continuous development and improvement of motor speed control technology, some high-end ships have gradually adopted electric frequency conversion propulsion as the navigation power system. Therefore, continuously improving the reliability of the propulsion system and reducing the failure probability has become a continuous research direction. [0003] At present, the marine dual-winding electric propulsion system uses dual frequency conversion circuits to supply power to the dual windings of the propulsion motor, which means that the failure of a single frequency converter + winding power supply circuit will not paralyze the propulsion system. In the event of a failure, the propulsion function will still be completely ineffective, and the power system will be paralyzed, an...

Claims

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Application Information

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IPC IPC(8): B63H21/17H02P25/16H02P25/18H02P25/22H02P27/04
CPCB63H21/17H02P25/16H02P25/18H02P25/22H02P27/04
Inventor 董良志陶志超
Owner 中船邮轮科技发展有限公司
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