ZPW2000 Rail Transmission Network of Compensation Capacitor Analysis and Ponder

2014 ◽  
Vol 494-495 ◽  
pp. 1473-1476
Author(s):  
Bin Huang ◽  
Jian Jun Wu
Keyword(s):  
Paper Analysis ◽  
Experimental Results ◽  
Transmission Network ◽  
Situation Analysis ◽  
Transmission Distance ◽  
Track Circuit ◽  
Research And Design

In order to better research and design track circuit system, this paper analysis and calculated compensation capacitor of the ZPW2000 no insulation track circuit, and verified the consistency of the experimental results and the practical installation situation. Analysis results also show that, through the appropriate compensation capacitor, the no insulation track circuit transmission distance significantly increased.

scholarly journals RESEARCH AND DESIGN OF GRID-CONNECTED INVERTER IN PHOTOVOLTAIC SYSTEM WITH SVPWM TECHNIQUE

2020 ◽  
Vol 6 (11) ◽  
pp. 18-31
Author(s):  
Nguyen Duc Minh ◽  
Bui Van Huy ◽  
Ngo Thi Quan ◽  
Nguyen Quang Ninh ◽  
Trinh Trong Chuong
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Experimental Results ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
Space Vector ◽  
Electrical Grid ◽  
Three Phase ◽  
Grid Connected Inverter ◽  
Research And Design

This paper presents the design and simulation of three phase grid-connected inverter for photovoltaic systems with power ratings up to 5 kW. In this research, the application of Space Vector Pulse Width Modulation (SVPWM) technique for inverter is explored. With the use of SVPWM inverter, synchronization between the inverter and electrical grid follows the Phaselocked Loop (PLL) algorithm. The proposed design is simulated and validated by experimental results.

scholarly journals A Remote Educational Video Dynamic Image Sharp Processing Algorithm

2013 ◽  
Vol 760-762 ◽  
pp. 1562-1566
Author(s):  
Qian Jun Tang ◽  
Yan Zhang
Keyword(s):  
Distance Education ◽  
Fault Detection ◽  
Transmission Efficiency ◽  
Video Image ◽  
Transmission Network ◽  
Characteristic Analysis ◽  
Remote Education ◽  
Transmission Distance ◽  
Education Network ◽  
Network Fault

In distance education network transmission process, because transmission distance is too long, transmission network will be affected by complicated external environment factors, which leads to network failure and failure in remote education video image formation, and finally causes unsmooth transmission. This paper puts forward a distributed network fault detection technology to perform fault detection for remote education transmission network nodes and characteristic analysis of the use of network fault by using genetic neural network, accurately locate fault node area so as to realize the remote education networks fault detection. Experiments show that this method can avoid distance education network fault resulted from long transmission distance and improve the transmission efficiency of remote education video image.

The Research and Design of the Adaptive Pulse Demagnetizer

2012 ◽  
Vol 182-183 ◽  
pp. 427-430
Author(s):  
Li Feng Wei ◽  
Liang Cheng ◽  
Xing Man Yang
Keyword(s):  
Adaptive Control ◽  
Power Consumption ◽  
Low Power ◽  
Control Method ◽  
Experimental Results ◽  
Low Power Consumption ◽  
Reliable Operation ◽  
Charge Current ◽  
Long Life ◽  
Research And Design

A adaptive control method of the pulse demagnetizer was presented, Can adjust the strength of the charge current automatically according to the changes of the magnetic content to ensure the constant of the magnetic field.The experimental results have shown that it has the advantages of low power consumption, strong anti-interference capability, stable and reliable operation, long life and good demagnetizing effect, when compared to the conventional demagnetizers.

Determination of the limits of stable combustion at high supersonic flow velocities in a channel

2010 ◽  
Vol 3 (2) ◽  
pp. 47-60
Author(s):  
Alexey V. Starov
Keyword(s):  
Paper Analysis ◽  
Measurement Methods ◽  
Experimental Results ◽  
Physical Parameters ◽  
Supersonic Speed ◽  
Combustion Limits ◽  
Criterial Description ◽  
Selection Of ◽  
Good Agreement

In this paper, analysis of existing methods application of criterial description of ignition conditions and combustion break-out for summarizing of experimental results is carried out. Experimental results are obtained at investigations of hydrogen combustion in combustor with high supersonic speed of airflow. For these conditions selection of several criterions was substantiated and they have a good agreement with new experimental results. At the same time complexity of determination of experimental physical parameters, which are included in criterions, do not allow confidently to apply them for prediction of steady-state combustion limits. Therefore further accumulation of experimental data and development of measurement methods are necessary for accurate criterions obtaining.

The Strategy Study of the International Fire Fighting Robot Competition

2010 ◽  
Vol 26-28 ◽  
pp. 443-447 ◽  
Author(s):  
Guang Ying Yang
Keyword(s):  
Model Building ◽  
Fire Fighting ◽  
Experimental Results ◽  
Infrared Detection ◽  
Competition Strategy ◽  
Situation Analysis ◽  
Fire Alarm ◽  
Strategy Study ◽  
Fire Extinguishing ◽  
Editing Process

In a hermetic model building, when there is a signal of fire alarm, the robot will start and send out alarm constantly. It will find the fire place and extinguish the fire. Then, the robot will get back to the start point in the shortest time. In this paper, the robots and the competition strategy has been introduced. At the same time, this paper emphasizes the sensor and the editing process of the software. According to the rules of the international fire extinguishing match and the limitation of the competition area, arithmetic along the wall and the appropriate situation analysis should be used to detect the environment and drive the motor to make the robot find and put out the fire according to the proposed scheme. Experimental results show that it is practicable that robots can successfully find out the fire sources with the approach and the technology of avoiding the obstacle by infrared detection. Better performance of searching the room and extinguishing the fire quickly has been achieved.

Image Retrieval Based on Edge Detection and Histogram

2012 ◽  
Vol 157-158 ◽  
pp. 1038-1041
Author(s):  
Wei Dong ◽  
Yan Dong Tang
Keyword(s):  
Edge Detection ◽  
Image Retrieval ◽  
Mathematical Morphology ◽  
Paper Analysis ◽  
Experimental Results ◽  
New Method

Based on the existing algorithm, improved mathematical morphology for image retrieval, a new method, using the combination of edge magnitude histogram and edge angular histogram, was proposed in this paper. Analysis and experimental results reveal that the proposed algorithm has a superior image retrieving performance.

The Research and Design of the Adaptive Automotive Headlamps Based LED System

2015 ◽  
Vol 742 ◽  
pp. 753-757
Author(s):  
Xu Sen Zhao ◽  
Shuo Bai
Keyword(s):  
Light Intensity ◽  
Power Supply ◽  
Analog Circuit ◽  
High Efficiency ◽  
Boost Converter ◽  
The Self ◽  
Experimental Results ◽  
Control Scheme ◽  
Self Adaptation ◽  
Research And Design

A new control scheme with self-adaption is put forward in this paper. The digital control and the analog circuit are combined. A light intensity sensor can be implemented with a photoelectric triode. This sensor makes the self-adaptation control of LED possible. As a result, the light of LED can be adjusted automatically with a PWM chopper according to the ambient brightness. The whole system’s power supply is from a Boost converter which has a high efficiency. In addition, This combination improves the hommization of the system and solves the problems existing incurrent headlamps, unsafe factors are also reduced. The validity of design is verified by experimental results.

ZPW-2000 Track Transmission Network Modeling and Analysis

2014 ◽  
Vol 494-495 ◽  
pp. 1468-1472
Author(s):  
Bin Huang
Keyword(s):  
System Model ◽  
Transmission Network ◽  
Test Results ◽  
Modeling And Analysis ◽  
Model And Simulation ◽  
Preliminary Study ◽  
Simulation Results ◽  
Track Circuit ◽  
Field Device ◽  
Device Test

In order to study and improve the track circuit system,we preliminary study and model for ZPW-2000A no track circuit transmission network of automatic block for in china, through the insulation of domestic ZPW-2000 no track circuit transmission network system model and simulation,we verified that the simulation results and field device test results is consistent . Simulation results show that the track circuit transmission network mathematical model is correct and effective, for further study made ZPW-2000 laid the foundation for the track circuit.

Research and Design of a 100W Adapter Applicable to Laptop

2014 ◽  
Vol 971-973 ◽  
pp. 1206-1209
Author(s):  
Ying Ying Song ◽  
Hong Min Wang ◽  
Ling Yu ◽  
Feng Wu Su
Keyword(s):  
Power Factor ◽  
High Power ◽  
Power Factor Correction ◽  
Current Mode ◽  
Boost Converter ◽  
Experimental Results ◽  
Two Stage ◽  
Voltage Range ◽  
High Power Factor ◽  
Research And Design

A 100W adaptor with universal voltage range 90-265VAC input and 20V/5A output is designed in this paper .The prototype adopted a new level two-stage high power factor power adapter, the PFC(Power Factor Correction) is a Boost converter operating in discontinuous current mode boundary,and the DC/AC using flyback converters. The experimental results showed that the effectiveness of the proposed approach.

Research and Design of the License Plate Recognition Systems Based on ARM S3C2440

2013 ◽  
Vol 333-335 ◽  
pp. 2484-2488
Author(s):  
Zhen Tao Qin ◽  
Wu Nian Yang ◽  
Ru Yang
Keyword(s):  
Real Time ◽  
Intelligent Transportation ◽  
Recognition System ◽  
Experimental Results ◽  
Dynamic Monitoring ◽  
License Plate ◽  
License Plate Recognition ◽  
Hough Transformation ◽  
Recognition Systems ◽  
Research And Design

In order to meet the need of real-time and dynamic monitoring of intelligent transportation, a License Plate Recognition (LPR) System Based on ARM S3C2440 is introduced and a vehicle license recognition system is designed and realized. This thesis comparatively explains the tasks and problems and dose analytic research across all phases of the system. Image binary and slant rectification also be discussed, which are difficulty points in LPR. According to the study of the license plate images, we use hough transformation and image reverse rotation , a inclined rectification method was proposed. The experimental results show that the approach is excellent in the accuracy with rapid speed and is in the robustness.

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