Soft Start Design of Controlled Transmission for Belt Conveyor

2012 ◽  
Vol 229-231 ◽  
pp. 2459-2462
Author(s):  
Xin Huan Wang ◽  
Fei Zhou ◽  
Zi Yi Fu
Keyword(s):  
Control System ◽  
High Power ◽  
Control Strategy ◽  
Mechanical Transmission ◽  
Belt Conveyor ◽  
Proportional Valve ◽  
Electrical Control ◽  
Soft Start ◽  
Start Process ◽  
Driving Circuit

According to the request of equipment for high-power belt conveyor, the controlled soft start equipment based on PLC was designed. The soft start process was analyzed and the idea velocity and acceleration curve of start process and the driving circuit of electro-hydraulic proportional valve were given, also the control strategy was designed. Through experiments test, the electrical control system designed in this article is able to control accurately mechanical transmission and hydraulic device and can finish the soft start function for belt conveyor.

Analysis and Comparison of Soft-Start Systems Applied to Belt Conveyors

2013 ◽  
Vol 321-324 ◽  
pp. 1597-1601 ◽  
Author(s):  
Sheng Zhe Yu ◽  
Yan Yu ◽  
Ning Yu
Keyword(s):  
Research Design ◽  
High Power ◽  
Coal Mines ◽  
Economic Aspects ◽  
Belt Conveyor ◽  
Long Distance ◽  
Work Related ◽  
Soft Start ◽  
Belt Conveyors

For soft-start system of for belt conveyor with long-distance and high-power, this essay, combining with lots of mechatronics research, design, application and commissioning work related with belt conveyor, researched and analyzed structure and governor principle of soft-start devices or systems successfully applied in coal mines or other industries. Furthermore, it evaluated each type of soft-starters in technical and economic aspects, which will play a guiding role in reasonable selection and application of soft starting devices.

Fuzzy-immune control strategy of a hydro-viscous soft start device of a belt conveyor

2009 ◽  
Vol 19 (4) ◽  
pp. 544-548 ◽  
Author(s):  
Fang-wei XIE ◽  
You-fu HOU ◽  
Zhi-peng XU ◽  
Rui ZHAO
Keyword(s):  
Control Strategy ◽  
Belt Conveyor ◽  
Immune Control ◽  
Soft Start

Implementation of soft start on design of body control system

2013 ◽  
Vol 33 (4) ◽  
pp. 1187-1190
Author(s):  
Xiaoliang ZHANG ◽  
Qing ZHU ◽  
Yaonan WANG ◽  
Shiwei CAO
Keyword(s):  
Control System ◽  
Soft Start

scholarly journals A Unified Control Strategy of Distributed Generation for Grid-Connected and Islanded Operation Conditions Using an Artificial Neural Network

2021 ◽  
Vol 13 (11) ◽  
pp. 6388
Author(s):  
Karim M. El-Sharawy ◽  
Hatem Y. Diab ◽  
Mahmoud O. Abdelsalam ◽  
Mostafa I. Marei
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Control System ◽  
Distributed Generation ◽  
Control Strategy ◽  
Current Control ◽  
Operating Conditions ◽  
Pi Controllers ◽  
Artificial Neural ◽  
The Stability

This article presents a control strategy that enables both islanded and grid-tied operations of a three-phase inverter in distributed generation. This distributed generation (DG) is based on a dramatically evolved direct current (DC) source. A unified control strategy is introduced to operate the interface in either the isolated or grid-connected modes. The proposed control system is based on the instantaneous tracking of the active power flow in order to achieve current control in the grid-connected mode and retain the stability of the frequency using phase-locked loop (PLL) circuits at the point of common coupling (PCC), in addition to managing the reactive power supplied to the grid. On the other side, the proposed control system is also based on the instantaneous tracking of the voltage to achieve the voltage control in the standalone mode and retain the stability of the frequency by using another circuit including a special equation (wt = 2πft, f = 50 Hz). This utilization provides the ability to obtain voltage stability across the critical load. One benefit of the proposed control strategy is that the design of the controller remains unconverted for other operating conditions. The simulation results are added to evaluate the performance of the proposed control technology using a different method; the first method used basic proportional integration (PI) controllers, and the second method used adaptive proportional integration (PI) controllers, i.e., an Artificial Neural Network (ANN).

scholarly journals Research on an Improved Sliding Mode Sensorless Six-Phase PMSM Control Strategy Based on ESO

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1292
Author(s):  
Hanying Gao ◽  
Guoqiang Zhang ◽  
Wenxue Wang ◽  
Xuechen Liu
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Sliding Mode ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Torque Ripple ◽  
Estimation Accuracy ◽  
Switching Function ◽  
Motor Speed ◽  
Rotor Position

The six-phase motor control system has low torque ripple, low harmonic content, and high reliability; therefore, it is suitable for electric vehicles, aerospace, and other applications requiring high power output and reliability. This study presents a superior sensorless control system for a six-phase permanent magnet synchronous motor (PMSM). The mathematical model of a PMSM in a stationary coordinate system is presented. The information of motor speed and position is obtained by using a sliding mode observer (SMO). As torque ripple and harmonic components affect the back electromotive force (BEMF) estimated value through the traditional SMO, the function of the frequency-variable tracker of the stator current (FVTSC) is used instead of the traditional switching function. By improving the SMO method, the BEMF is estimated independently, and its precision is maintained under startup or variable-speed states. In order to improve the estimation accuracy and resistance ability of the observer, the rotor position error was taken as the disturbance term, and the third-order extended state observer (ESO) was constructed to estimate the rotational speed and rotor position through the motor mechanical motion equation. Finally, the effectiveness of the method is verified by simulation and experiment results. The proposed control strategy can effectively improve the dynamic and static performance of PMSM.

Design of Coal Mine Belt Conveyor Control System Based on OPC Technology

2014 ◽  
Vol 614 ◽  
pp. 191-194 ◽  
Author(s):  
Lei Yu ◽  
Feng Wang ◽  
Xu Long Zhang
Keyword(s):  
Control System ◽  
Coal Mine ◽  
Belt Conveyor ◽  
Analysis And Design ◽  
Industry Standard ◽  
Opc Client ◽  
Opc Technology ◽  
Mine Automation ◽  
Actual Operation ◽  
Automation Control

OPC has been widely applied to coal mine automation control system as an industry standard of communication between the field control substation and PC in the control system. In this paper, through the analysis and design for the transport system of coal mine belt conveyor, communication between the PC and S7-300 PLC is realized by using OPC technology. This paper gives the configuration scheme of OPC Server and develops the OPC Client program. The actual operation shows that the system is stable, reliable of communication and high of data real-time.

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