Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hybrid power tramcar speed adjusting method based on real-time power of power system

A tram and power system technology is applied in the field of hybrid tram speed adjustment based on the real-time power of the power system, which can solve problems that affect the safety and reliability of the vehicle, run on time and on time, cannot guarantee the train's dynamic performance, and carry limited electric energy. and other problems to achieve accurate and reliable identification results, eliminate path differences, and improve accuracy.

Active Publication Date: 2019-12-10
SOUTHWEST JIAOTONG UNIV
View PDF17 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional trams are powered by the catenary, and the catenary-powered trams obtain continuous power from the catenary through the pantograph, so the operation planning of the train does not need to consider the factors of the power system, and the fuel cell through The power source inside the car body supplies power for itself. Although it gets rid of the constraints of the traditional traction power supply system and the pantograph-catenary system, the power supply mode of the whole vehicle is more flexible, but limited by the space in the car and the characteristics of the power system itself, fuel cell hybrid power has certain advantages. The electric power carried by the tram itself is limited, so the operation planning of the train needs to consider the power supply capacity of the on-board power system
However, in the existing hybrid trams, the speed of the trams is not adjusted by considering the characteristics of the power system, so that the speed adjustment effect of the fuel cell hybrid trams during operation is poor, and the maximum speed of the train cannot be guaranteed. The power performance is exerted, which greatly affects the safe, reliable and punctual operation of the vehicle

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
  • Hybrid power tramcar speed adjusting method based on real-time power of power system
  • Hybrid power tramcar speed adjusting method based on real-time power of power system
  • Hybrid power tramcar speed adjusting method based on real-time power of power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0033] In this example, see figure 1 As shown, the present invention proposes a hybrid electric tram speed adjustment method based on power system real-time power, comprising steps:

[0034] S100, based on the vehicle's own parameters, passenger carrying conditions and line parameters, under the constraints of route distance between stations, running time and maximum running speed, establish a tramway energy consumption model, and solve the speed-time curve of the offline planning of the tramway;

[0035] S200, in order to ensure the accuracy and reliability of speed adjustment, establish an accurate vehicle power-speed model, identify the basic resistance parameters of the tram, and use the adaptive neural network algorithm for online adjustment to establish an accurate ...

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

The invention discloses a hybrid power tramcar speed adjusting method based on real-time power of a power system. The method comprises the steps that a tramcar energy consumption model is established,and an offline planned speed-time curve of a tramcar is solved; basic resistance parameters of the tramcar are identified, self-adaptive online adjustment is carried out, and an accurate speed powermodel of a tramcar system is established; the tramcar runs according to the offline planned speed-time curve, and the real-time maximum power of the whole power system is compared with the real-time power of the power system, so that the self-adaptive adjustment of the running speed of the tramcar is realized; and the path difference caused by the speed adjustment is taken as a coefficient, and the path difference caused by the speed adjustment is eliminated through speed closed loop feedback. The hybrid power tramcar speed adjusting method automatically adjusts the running speed of the tramcar according to the real-time maximum power of the power system, and provides a speed-time curve with online tracking and self-adaptive adjustment for an automatic train driving system; and the power performance is exerted to the maximum extent, and safe, reliable, punctual running of a vehicle can be ensured.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric trams, in particular to a method for adjusting the speed of hybrid electric trams based on the real-time power of a power system. Background technique [0002] Due to the high energy conversion efficiency and non-polluting characteristics, fuel cell hybrid power systems have received great attention in recent years. With the progress of fuel cell technology, fuel cell hybrid power system has been applied to the field of high-power rail transit. [0003] Traditional trams are powered by the catenary, and the catenary-powered trams obtain continuous power from the catenary through the pantograph, so the operation planning of the train does not need to consider the factors of the power system, and the fuel cell through The power source inside the car body supplies power for itself. Although it gets rid of the constraints of the traditional traction power supply system and the pantograph-cate...

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 Applications(China)
IPC IPC(8): B60L15/20B60L50/40B60L50/75
CPCB60L15/20B60L50/40B60L50/75B60L2200/26B60L2240/12Y02T10/72Y02T90/40Y02T10/70
Inventor 陈维荣张国瑞李奇
Owner SOUTHWEST JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com