Unlock instant, AI-driven research and patent intelligence for your innovation.

Control Method for Preventing Overvoltage of Diesel Locomotive Auxiliary Generating Circuit

A technology for auxiliary power generation and diesel locomotives, which is applied to control systems, control generators, and control generators through magnetic field changes. It can solve problems such as speed regulation lag, affecting locomotive control, and diesel engine speed regulation.

Active Publication Date: 2016-06-29
CRRC DALIAN CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this will affect the speed regulation of the diesel engine, and there will be a phenomenon such as speed regulation hysteresis, which will make the driver and passengers mistakenly believe that the diesel engine speed regulation is faulty, which will affect the control of the locomotive.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control Method for Preventing Overvoltage of Diesel Locomotive Auxiliary Generating Circuit
  • Control Method for Preventing Overvoltage of Diesel Locomotive Auxiliary Generating Circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] see figure 1 , the control method for preventing the overvoltage of the diesel locomotive auxiliary power generation circuit in this embodiment, its system operation principle is: after the system is started, it first enters frame 1.2 to detect the PWM duty ratio, the last duty ratio and the preset duty ratio P % comparison (P% is pre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A control method for preventing the auxiliary electricity generation circuit of a diesel locomotive from over voltage. A reference voltage value is set for the auxiliary electricity generation circuit, an actual voltage value of the auxiliary electricity generation circuit is detected (1.4), the difference between the reference voltage value and the actual voltage value is put into a PI to be adjusted and calculated (1.5), and the calculation result from the PI is used for generating a PWM wave form to drive an auxiliary generator exciting current. The PWM duty cycle is detected (1.2). When the PWM duty cycle is greater than a preset value P%, the reference voltage value is adjusted (1.3), and the PWM output is limited (1.6). With the method, the problem of the over voltage of the locomotive auxiliary electricity generation circuit is solved, which is caused by promoting the rotating speed of a diesel engine when the diesel engine is rotating in low speed and an air compressor is working. The safety of an electrical system is ensured, and the needs for operating a locomotive are met.

Description

technical field [0001] The invention relates to a control method for preventing overvoltage of an auxiliary power generation circuit of a diesel locomotive, belonging to the technical field of railway locomotives. Background technique [0002] The auxiliary power generation circuit of the diesel locomotive converts part of the mechanical power output by the locomotive diesel engine into electrical power through the AC auxiliary generator, and converts the AC power into DC power through the rectifier bridge, and provides it to the locomotive control system and some electrical systems. When the diesel engine stops running, it relies on the locomotive's own battery pack to provide electric energy for the locomotive control system and some electrical systems. However, the capacity of the battery pack is limited, and the time it can support the operation of the locomotive control system and some electrical systems is also limited. Therefore, under normal circumstances, after the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/26
CPCH02P9/30H02P9/305
Inventor 管明华谭志勇姜捷付明祥宋维胜
Owner CRRC DALIAN CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com