Coal-Conveying Control System for the Pressure of Coal Waste Heat Power Generation Based on PLC

2013 ◽  
Vol 336-338 ◽  
pp. 681-685
Author(s):  
Li Jun Zhao ◽  
Ying Feng Chen
Keyword(s):  
Control System ◽  
Waste Heat ◽  
Computer Control ◽  
System Structure ◽  
Utilization Rate ◽  
Coal Waste ◽  
Stable Operation ◽  
Efficient Operation ◽  
Actual Operation ◽  
One Year

This paper constructs a coal-conveying control system based on programmable logic controller (PLC), which is applied to the residual heat and pressure integrated energy-saving technological transformation projects, and realizes the performance of security, reliable and efficient operation. This control system consists of the PLC control system, computer control system and industrial television monitoring system. After more than one year of actual operation shows that the system structure is reasonable, reliable operation, at the same time, reduce labor intensity, improve the utilization rate of equipment, the stable operation also provides a practical reference for other similar projects.

Fault Diagnosis for Level Control System Based on IDEF

2012 ◽  
Vol 229-231 ◽  
pp. 1394-1397
Author(s):  
Kun Lin Zhou ◽  
Rong Sheng Guo
Keyword(s):  
Decision Making ◽  
Control System ◽  
Fault Diagnosis ◽  
System Structure ◽  
Stable Operation ◽  
Level Control ◽  
Level Control System ◽  
Steam Drum ◽  
Diagnosis Approach ◽  
Reliable Basis

In order to improve the dynamic stability of level control system in the steam drum of boiler, a fault diagnosis approach is proposed by using IDEF method, which can analyze the control system structure by the IDEF model. When the faults occur, the possible causes of fault can quickly be identified by using the model. The approach can provide a reliable basis of decision-making for the control and make a reasonable fault diagnosis in a timely and accurate manner. Using the method can effectively improve the speed of fault diagnosis, prevent the fault occurs, ensure safety and stable operation for the boiler control system.

scholarly journals PEP Computer Control System

1979 ◽  
Vol 26 (3) ◽  
pp. 3267-3271 ◽  
Author(s):  
A. W. Chao ◽  
R. A. Early ◽  
J. D. Fox ◽  
A. E. Gromme ◽  
R. H. Helm ◽  
...  
Keyword(s):  
Control System ◽  
Computer Control ◽  
Computer Control System

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.

Design and Experimental Implementation of Longitudinal Control for a Platoon of Automated Vehicles

1998 ◽  
Vol 122 (3) ◽  
pp. 470-476 ◽  
Author(s):  
R. Rajamani ◽  
S. B. Choi ◽  
B. K. Law ◽  
J. K. Hedrick ◽  
R. Prohaska ◽  
...  
Keyword(s):  
Control System ◽  
Torque Converter ◽  
Stable Operation ◽  
Automated Vehicles ◽  
Longitudinal Control ◽  
The Public ◽  
Automated Highways ◽  
Experimental Implementation ◽  
Special Challenge ◽  
Upper Level

This paper presents the design and experimental implementation of a longitudinal control system for the operation of automated vehicles in platoons. The control system on each vehicle is designed to have a hierarchical structure and consists of an upper level controller and a lower level controller. The upper controller determines the desired acceleration for each vehicle in the platoon so as to maintain safe string-stable operation even at very small intervehicle spacing. The lower controller utilizes vehicle-specific parameters and determines the throttle and/or brake commands required to track the desired acceleration. A special challenge handled in the design of the lower level controller is low-speed operation that involves gear changes and torque converter dynamics. The paper also presents the design of longitudinal intra-platoon maneuvers that are required in order to allow any car in the platoon to make an exit. The paper presents extensive experimental results from the public NAHSC demonstration of automated highways conducted in August 1997 at San Diego, California. The demonstration included an eight-car platoon operating continuously over several weeks with passenger rides given to over a thousand visitors. The maneuvers demonstrated included starting the automated vehicles from complete rest, accelerating to cruising speed, allowing any vehicle to exit from the platoon, allowing new vehicles to join the platoon and bringing the platoon to a complete stop at the end of the highway. [S0022-0434(00)01903-1]

The Research on Substation Computer Monitoring System

2014 ◽  
Vol 1049-1050 ◽  
pp. 1196-1199
Author(s):  
Yu Ming Ma ◽  
Lin Liu
Keyword(s):  
Control System ◽  
Monitoring System ◽  
Supervisory Control ◽  
System Structure ◽  
Management Model ◽  
Monitoring Technology ◽  
Computer Monitoring ◽  
Supervisory Control System ◽  
Operation And Management

In this paper, the substation computer supervisory control system structure, content, features and characteristics were described. In recent years, substation monitoring technology has been developed rapidly, and has been widely used. However, due to the promotion of our country is in its infancy, technology is not mature, the new operation and management model is being explored, and thus in the operation also exposed some problems.

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