scholarly journals Performance test and typical fault analysis of electric emergency power supply vehicle

2021 ◽  
Vol 256 ◽  
pp. 01008
Author(s):  
Chunhui Gu ◽  
Jian Fang ◽  
Zichong Zhang ◽  
Jianping Gong
Keyword(s):  
Natural Disasters ◽  
Emergency Response ◽  
Power Supply ◽  
Performance Test ◽  
Fault Analysis ◽  
Technical Standards ◽  
Company Limited ◽  
Emergency Power ◽  
Supply Equipment ◽  
Power Recovery

In the emergency repair of electric power caused by sudden natural disasters, the reliability and stability of emergency power supply vehicles largely determine the speed and efficiency of restoring power supply. Based on the performance test and reliability study of 18 diesel-powered vehicles in Guangzhou Power Supply Company Limited, the typical defects of emergency power supply equipment and the causes of the faults are analyzed. It provides technical support for the technical standards and the maintenance guidance of emergency power supply equipment, and greatly improves the emergency capability of rapid power recovery under extreme natural disasters. It has improved the emergency response capability of rapid re-powering under extreme natural disasters, shortened the repair time, and significantly reduced the loss and impact of extreme natural disasters on the power system and the entire national economy.

scholarly journals Research on battery capacity reliability of intelligent power supply equipment

2021 ◽  
Vol 252 ◽  
pp. 02012
Author(s):  
Zikuo Dai ◽  
Yan Xu ◽  
Kejian Shi ◽  
Yang You ◽  
Bingxin Li
Keyword(s):  
Power Supply ◽  
Power Source ◽  
Normal Operation ◽  
Battery Capacity ◽  
Emergency Power ◽  
Supply Equipment ◽  
Train Dispatching ◽  
Reliable Power Supply

Battery is not only the power source or emergency power supply for many ships, but also the essential emergency power supply for train command and dispatching, post and telecommunication, bank operation, etc. The capacity of battery will be directly related to the normal operation of ship train dispatching, post and telecommunication and bank operation. At the same time, the battery is also the last guarantee for the safe and reliable power supply of intelligent power supply equipment, so it is necessary to study the reliability of battery capacity

The San Salvador Earthquake of October 10, 1986—Performance of Lifelines

1987 ◽  
Vol 3 (3) ◽  
pp. 585-607
Author(s):  
James R. Morgan ◽  
Sam W. Swan
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Ground Motions ◽  
Circuit Breaker ◽  
Long Distance ◽  
San Salvador ◽  
Emergency Power ◽  
Supply Equipment ◽  
Phone Service ◽  
The City

Although the October 10, 1986 San Salvador earthquake was only a moderate event of magnitude 5.4 and the recorded ground motions had a relatively short duration, the high recorded peak accelerations caused substantial damage to lifelines. There was significant and widespread damage to buried lifelines. Long-distance telecommunications facilities were reportedly undamaged, but there was substantial loss of local phone service caused by damage to buildings, failures of equipment racks, and loss of emergency power (tilting of batteries). Power generating facilities (hydroelectric and geothermal) that supply electricity to San Salvador are located too far from the city to have been affected by the earthquake. Both 115-kV substations that serve San Salvador experienced a moderate level of damage, consisting mostly of ceramic column circuit breaker failures. As has been observed in past earthquakes, control and instrumentation systems and low-voltage power-supply equipment displayed an ability to withstand high ground accelerations.

scholarly journals Model Design on Emergency Power Supply of Electric Vehicle

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Yuanliang Zhao ◽  
Chengpeng Li ◽  
Mingyu Zhao ◽  
Shiming Xu ◽  
Hui Gao ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Power Supply ◽  
Cost Minimization ◽  
Loss Minimization ◽  
Power Failure ◽  
Emergency Power ◽  
Supply Equipment ◽  
Random Dispersion ◽  
Supply Model ◽  
Electricity Reliability

According to the mobile storage characteristic of electric vehicles, an emergency power supply model about the electric vehicles is presented through analyzing its storage characteristic. The model can ensure important consumer loss minimization during power failure or emergency and can make electric vehicles cost minimization about running, scheduling, and vindicating. In view of the random dispersion feature in one area, an emergency power supply scheme using the electric vehicles is designed based on the K-means algorithm. The purpose is to improve the electric vehicles initiative gathering ability and reduce the electric vehicles gathering time. The study can reduce the number of other emergency power supply equipment and improve the urban electricity reliability.

scholarly journals Design and research on the function of lithium-ion batteries emergency traction system for rail vehicles

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881229
Author(s):  
Xiaoming Xu ◽  
Xudong Sun ◽  
Qiaolian Zhou ◽  
Xinhua Jiang ◽  
Donghai Hu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Power Supply ◽  
Lithium Ion ◽  
Urban Rail ◽  
Entire Line ◽  
Emergency Power ◽  
External Power ◽  
Traction Power Supply ◽  
Traction System ◽  
Traction Power

Urban rail vehicle power supply short interruptions or prolonged paralysis situation sometimes occurs, which will cause the entire line outage. If the train through the battery to achieve emergency traction, it will be able to effectively solve the problem of train interval stop due to external power supply reasons. This article proposes an emergency traction system, using lithium-ion batteries as traction power, carrying out the design and research on the function of lithium-ion emergency traction system for rail transit vehicles. Through the design of the power supply system, the design of the emergency traction power supply, the design of the conversion control and safety protection circuit, the design of the traction system, and the design of the auxiliary system, the train can be run to the next station under the emergency power supply, and the effectiveness of the scheme is verified by simulation. Moreover, the transformation on the basis of the existing Shanghai 952 train illustrates the feasibility of the existing train to achieve the emergency traction function and provides guarantee for the safe operation of the train.

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