Internal combustion locomotive main generator excitation control device

A technology for main generators and diesel locomotives, which is applied in the direction of controlling generators through magnetic field changes, which can solve problems such as reduced reliability, complex hardware structure, and slow adjustment speed, and achieve the effect of improving device reliability and operating stability

Active Publication Date: 2016-05-04
CRRC DALIAN INST CO LTD
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Problems solved by technology

Although the traditional analog excitation control system can meet the requirements of diesel locomotives, its adjustment speed is slow,

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  • Internal combustion locomotive main generator excitation control device
  • Internal combustion locomotive main generator excitation control device
  • Internal combustion locomotive main generator excitation control device

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[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The excitation control device of the main generator of the diesel locomotive mainly completes the control of the output voltage (intermediate DC voltage), current and power of the main generator, the control of the given traction control torque and torque loading rate, low constant speed control, redundant control, main Generator excitation circuit and three-phase output protection, through the MVB bus and VCU, TCU equipment to achieve data exchange and other functions.

[0025] The invention designs an excitation control device for the main generator of a diesel locomotive based on closed-loop control, which collects and analyzes excitation control sampling data through various signal sampling modules, and controls and adjusts the excitation circuit based on ...

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Abstract

The invention discloses an internal combustion locomotive main generator excitation control device comprising a power supply module, a first signal acquisition module used for acquiring voltage and current signals, a second signal acquisition module used for acquiring a frequency signal, an excitation current acquisition control module used for acquiring an excitation current signal of an internal combustion locomotive main generator and automatically adjusting the excitation current signal value of the internal combustion locomotive main generator, a switching input and output module used for detecting the current running mode of the internal combustion locomotive main generator and acquiring a corresponding switching signal, and a main control unit used for getting the current excitation control sampling data of the internal combustion locomotive main generator based on the voltage and current signals, the frequency signal and the excitation current signal and making the excitation current acquisition control module automatically adjust the excitation current signal value to achieve predetermined target excitation control data based on the current running mode and the excitation control sampling data of the internal combustion locomotive main generator. The device is of high system reliability, the signal at the output end is stable, and the fault protection function is perfect.

Description

technical field [0001] The invention relates to locomotive excitation control technology, in particular to an excitation control device for a main generator of a diesel locomotive. Background technique [0002] The main generator is the main equipment of the diesel locomotive. It is driven by the diesel engine and generates three-phase alternating current for the traction motor of the locomotive. The excitation control system is an important part of the main generator. According to the requirements of the diesel engine, the main generator and the traction motor, the excitation current of the main generator is adjusted, and the output power of the main generator is controlled to be constant. In case of failure, the main generator protection function is completed. A good excitation control mechanism is an important guarantee for the normal operation of a diesel locomotive. The performance index of the excitation system is directly related to the safe and stable operation of ...

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Application Information

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IPC IPC(8): H02P9/38
CPCH02P9/38
Inventor 张东升付尧于健
Owner CRRC DALIAN INST CO LTD
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