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Ship electric propulsion system

A technology of electric propulsion and ships, applied in the field of industrial control, to achieve the effect of increasing power density, reducing harmonic distortion, and reducing mechanical noise

Active Publication Date: 2018-06-05
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing ship electric propulsion systems are equipped with two or more propulsion branches, and each branch is equipped with a frequency converter and a propulsion motor. However, under the new concept and trend of green ships, the existing ship electric propulsion system and ship energy efficiency need to be improved urgently

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] refer to figure 1 As shown, the present invention discloses a marine electric propulsion system, which includes a main control unit 1, a motor drive device composed of two inverters 2, a propeller composed of a double-winding integrated motor 3 and a plurality of adjustable The DC grid 7 composed of variable-speed rectifier generators 6 also includes an EEDI data intelligent calculation and wireless transmission module 8 arranged on the main control unit 1 and an EEDI data receiving module connected to the EEDI data intelligent calculation and wireless transmission module 8 through wireless communication. The server 9, the main control unit 1 is connected with the control panel 4 by hard wire, the main control unit 1 accepts the instructions of the control panel 4, and sends a control signal to the inverter 2 after processing, the main control un...

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Abstract

The invention discloses a ship electric propulsion system. The ship electric propulsion system comprises a main control unit, a motor drive device formed by two inverters, a propeller formed by a double-winding integrated motor, and a direct-current electric net formed by multiple speed-variable rectification power generators. The ship electric propulsion system further comprises an EEDI data intelligent calculation and wireless transmitting module arranged on the main control unit, and an EEDI data receiving server connected with the EEDI data intelligent calculation and wireless transmittingmodule through wireless communication. The system has the functions of automatically monitoring whole ship energy consumption and calculating the energy consumption value, and a remote real-time real-ship data acquisition interface is provided for implementation of a research and control policy, used for reducing the EEDI energy efficiency index, provided by an IMO.

Description

technical field [0001] The invention belongs to the technical field of industrial control, and in particular relates to an electric propulsion system for improving ship energy efficiency. Background technique [0002] Most of the existing ship electric propulsion systems are equipped with two or more propulsion branches, and each branch is equipped with a frequency converter and a propulsion motor. However, under the new concept and trend of green ships, the existing ship electric propulsion The system and the energy efficiency of ships need to be improved urgently. [0003] In order to meet the design requirements of reducing ship efficiency design index (EEDI) proposed by IMO, in order to improve ship energy efficiency, maintain and operate convenience, and higher power density of propulsion equipment, it is necessary to invent an electric propulsion that can improve ship energy efficiency system. Contents of the invention [0004] The object of the present invention i...

Claims

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Application Information

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IPC IPC(8): B63H21/17B63H21/21
CPCB63H21/17B63H21/21B63H2021/216
Inventor 刘文达周兴窦晓峰柯常国
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST