Ship shaft generator system and control method thereof

A technology for shaft power generation and ships, applied in electrical components, circuit devices, emergency power supply arrangements, etc., can solve the problem that the system cannot achieve stable operation, slow response speed, and can not achieve seamless switching of brushless doubly-fed motor stator power generation voltage, etc. problem, to achieve the effect of stable operation, smooth switching, and ensuring stability

Active Publication Date: 2014-09-10
WUXI SILENT ELECTRIC SYST SES TECH CO LTD +1
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  • Abstract
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Problems solved by technology

[0008] The invention provides a ship shaft power generation system and its control method, which solves the problem of slow response speed of the control system in the existing devices and control methods, and the inability to realize the voltage and frequency of the

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  • Ship shaft generator system and control method thereof
  • Ship shaft generator system and control method thereof
  • Ship shaft generator system and control method thereof

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Embodiment Construction

[0023]A ship shaft power generation system, including ship power station 4, bus bar 9, ship load 10, grid-connected device 11, input filter unit 12, grid-side power unit 13, machine-side power unit 14, output reactor 15, brushless The doubly-fed motor 1 and the control system 17, the three-phase output end of the main generator 5 in the ship power station 4 are connected to the bus bar 9 through the electronically controlled main switch 7, and the bus bar 9 is connected to the input through the main circuit breaker 37 in the grid-connected device 11. The input terminal of the filter unit 12 is connected, and the output terminal of the input filter unit 12 is connected with the three-phase AC input terminal of the grid side power unit 13. The grid side power unit 13 is composed of the first double-tube insulated gate bipolar transistor 29, the second The double-tube insulated gate bipolar transistor 30 and the third double-tube insulated gate bipolar transistor 31 are composed o...

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Abstract

The invention discloses a ship shaft generator system and a control method thereof, so as to solve the problems that seamless switching between power generation voltage and a frequency of brushless doubly-fed machine stator and voltage and frequency of a ship power station can not be realized in the prior art and the system can not operate stably when the ship load changes suddenly. The system mainly comprises a grid-connected device (11), an input filter unit (12), a grid-side power unit (13), a machine-side power unit (14), an output reactor (15) and a control system (17), wherein the grid-connected device is connected with the grid-side power unit via the input filter unit; the machine-side power unit is connected with a control winding (3) via the output reactor; and the grid-side power unit and the machine-side power unit are in back-to-back connection. An industrial PC (18) acquires current, voltage, rotation speed and busbar voltage of the brushless doubly-fed machine respectively and the ship shaft generator system is stably controlled. The control method of the invention adopts vector control algorithm and can be used in the ship shaft generator system.

Description

technical field [0001] The invention relates to a ship shaft power generation system, in particular to a ship shaft power generation system based on a brushless double-fed motor and a control method thereof. Background technique [0002] Ship shaft power generation uses the power reserve of the ship's main engine to drive the shaft generator to generate electricity while the main engine drives the propeller to propel the ship, so that the ship basically does not use traditional diesel generators to generate electricity when sailing. This method has significant energy-saving effect. This is because the power of the main diesel engine is selected according to the maximum loading capacity and maximum speed when the ship chooses the power of the main diesel engine, with a margin of 10%-15%. If the sea condition and ship condition are good, the main diesel engine There will be a large power reserve that has not been fully utilized, which will cause most of the main diesel engine...

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Application Information

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IPC IPC(8): H02J3/38H02J9/06
Inventor 邵诗逸乌云翔兰建军常国梅刘敬普刘洋
Owner WUXI SILENT ELECTRIC SYST SES TECH CO LTD
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