Shipping direct-current networking electric propulsion system with pulse load assembly and adjusting and controlling method

A technology of pulse load and electric propulsion, which is applied in the direction of ship propulsion, propulsion components, battery load switching, etc. It can solve the problems of large design capacity and low efficiency of diesel generator sets, and achieve convenient daily maintenance, improved efficiency, and long cycle life Effect

Pending Publication Date: 2017-07-28
SHANXI FENXI HEAVY IND +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a ship DC network electric propulsion system with a pulse load and a control method, which solves the technical problem of low efficiency of the diesel generator set caused by the large design capacity of the ship diesel generator set with a pulse load

Method used

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  • Shipping direct-current networking electric propulsion system with pulse load assembly and adjusting and controlling method

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] A ship DC network electric propulsion system with pulse loads, comprising a first diesel generator set 1, the first diesel generator set 1 is connected with a common DC bus 5 through a first rectifier converter 2, and the second diesel generator set 3 Connect together with the common DC bus 5 through the second rectifying frequency converter 4, the main propulsion motor inverter 6 and the side propulsion motor inverter 9 are respectively connected to the common DC bus 5, the main propulsion motor inverter frequency conversion The output end of device 6 is connected with main propulsion motor 7, is connected with main propeller 8 on the output shaft of main propulsion motor 7, is connected with side propulsion motor 10 on the output end of side propulsion motor inverter converter 9, and propels in side The output shaft of the motor 10 is connected with a side thr...

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Abstract

The invention discloses a shipping direct-current networking electric propulsion system with a pulse load assembly and an adjusting and controlling method. The problem that efficiency of diesel power generating sets is low due to the fact that the shipping diesel power generating set design volume is rather large is solved. The shipping direct-current networking electric propulsion system comprises a first diesel power generating set (1) and a second diesel power generating set (3), the first diesel power generating set (1) is connected with a common direct-current bus (5) through a first rectification frequency converter (2), and the second diesel power generating set (3) is connected with the common direct-current bus through a second rectification frequency converter (4). A main propulsion motor inversion converter (6) and a side propulsion motor inversion converter (9) are connected to the common direct-current bus, a shipping pulse load inversion converter (17) is connected to the common direct-current bus, the output end of the shipping pulse load inversion converter is connected with the shipping pulse load assembly (18) through a shipping pulse load transformer (13), and a wave chopper (15) and a super capacitor bank (16) are connected to the common direct-current bus. The oil consumption quantities of the power generating sets are reduced, and efficiency of the power generating sets is improved.

Description

technical field [0001] The invention relates to a ship DC network electric propulsion system, in particular to a ship DC network electric propulsion system with pulse load and a control method. Background technique [0002] At present, the electric propulsion system of the ship has begun to adopt a DC network electric propulsion system, which is composed of a diesel generator set, a public DC bus, a frequency converter and a propulsion system. The ship's diesel generator set not only supplies power to the ship's daily electrical load, but also supplies power to the ship's propulsion system. For some ships with pulse loads, the power load level during operation is unstable, showing periodic or non-periodic pulse changes, for example: ships with winch loads, when the winch is lifting heavy objects, Its power demand will increase rapidly, and in other operating conditions, its power load is relatively low and in a stable state; another example is a ship with drilling equipment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/17H02J1/14H02J7/00
CPCH02J1/14H02J7/0068B63H21/17H02J7/345
Inventor 乌云翔邵诗逸岳凡徐清华徐国林秦建斌
Owner SHANXI FENXI HEAVY IND
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