Excitation control system architecture and control method for marine diesel brushless double fed shaft generator

A technology for shaft generators and marine diesel engines, which is applied to the frequency and voltage control of generators, generator control circuits, and control systems. question

Inactive Publication Date: 2009-08-19
HUAZHONG UNIV OF SCI & TECH +1
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  • Abstract
  • Description
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  • Application Information

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[0003] Surrounding the above-mentioned background technology, in the published patent documents, the inventor has not

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  • Excitation control system architecture and control method for marine diesel brushless double fed shaft generator
  • Excitation control system architecture and control method for marine diesel brushless double fed shaft generator
  • Excitation control system architecture and control method for marine diesel brushless double fed shaft generator

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] exist figure 1 Among them, the marine brushless doubly-fed shaft generator excitation control system structure 1 is connected to the power winding 15, control winding 16, rotary encoder 17, ship power station 12, and ship 220V battery pack of a brushless doubly-fed shaft generator 15 Between 13. Its characteristics are: the marine brushless double-fed shaft generator excitation control system structure 1 includes contactor 2, step-up transformer 3, rectification feedback unit 4, DC compensation unit 5, inverter unit 6, operation panel 7, excitation control 8, AB phase voltage sensor 9, CA phase voltage sensor 10, BC phase voltage sensor 11. in:

[0025] The input end of the contactor 2 is connected to the three-phase power winding 15 of the shaft generator 14, the output end of the contactor 2 is connected to the ship power station 12; the input end...

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Abstract

The invention relates to a structure of an excitation control system of a brushless doubly-fed shaft generator used for a marine diesel and a control method thereof. The structure comprises a contactor, a step-up transformer, a rectification feedback unit, a direct current compensation unit, a inverter unit, an operation panel, an excitation controller, an AB phase voltage sensor, a CA phase voltage sensor, and a BC phase voltage sensor; the method based on the control system structure can realize the excitation, constant-voltage control, constant-frequency control, under-voltage protection and over-voltage protection of the brushless doubly-fed shaft generator of the marine diesel.

Description

technical field [0001] The invention belongs to the technical field of generator automatic control, and in particular relates to a control system structure and a control method for a marine diesel engine brushless doubly-fed shaft generator. Background technique [0002] At present, separate diesel generator sets are widely used on ships to generate electricity, which consumes a large amount of light diesel oil every year. If the main engine of the ship can be fully utilized for shaft power generation, energy and costs can be greatly saved. However, the speed of the ship's main engine changes frequently during navigation, which requires the generator and control system to be capable of variable speed, voltage stabilization, and constant frequency power generation. How to solve the technical problem of shaft power generation by the main engine of the ship, technicians in the field have proposed various solutions, but with little success. The fundamental reason is that the mar...

Claims

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Application Information

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IPC IPC(8): H02P9/14H02P9/48H02P9/44H02H7/06
CPCH02P9/102H02P9/007
Inventor 陈冰艾武舒迪宪张帮发忻时威李斌韦忠朝
Owner HUAZHONG UNIV OF SCI & TECH
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