Design Method of Multi-Input Multi-Output Delay Time Control System with Feedforward Compensation

The article presents an analysis of priority solutions for trams at a selected sequence of intersections in Warsaw (Poland). An analysis of the literature has shown the topicality of this issue. A computer simulation model of a coordinated sequence of intersections was constructed. Three test scenarios were designed: the existing control system, the new coordinated fixed-time control system, and the adaptive control system with active priority. In the simulation process, detailed travel characteristics of trams and other traffic participants in a selected section were obtained for the three varying scenarios. Electric energy consumption for traction needs and pollutant emissions was then estimated for each of the variants. It was concluded that for the analyzed configuration, implementation of the adaptive priority will result in a reduction of tram time losses by up to 25%, a reduction in energy consumption by up to 23%, and a reduction in the emission of pollutants from individual vehicles by up to 3% in relation to the original variant. The conducted research may be the basis for a comprehensive method of assessing the effectiveness of applying the adaptative priority when designing new tramway lines and modernizing the existing ones.

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Intelligent Information of TS Fuzzy PID Control System of BLDCM

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.846-847.313 ◽

2013 ◽

Vol 846-847 ◽

pp. 313-316 ◽

Cited By ~ 2

Author(s):

Xiao Yun Zhang

Keyword(s):

Control System ◽

Dynamic Model ◽

Pid Control ◽

Control Method ◽

Design Method ◽

Fuzzy Pid ◽

Fuzzy Pid Control ◽

Control Precision ◽

Simulation Results ◽

Intelligent Information

This paper presented a new method based on the Fuzzy self - adaptive PID for BLDCM. This method overcomes some defects of the traditional PID control. Such as lower control precision and worse anti - jamming performance. It dynamic model of BLDCM was built, and then design method for TS fuzzy PID model is given, At last, it compared simulation results of PID control method with TS Fuzzy PID control method. The results show that the TS Fuzzy PID control method has more excellent dynamic antistatic performances, as well as anti-jamming performance. The experiment shows that TS fuzzy PID control has the stronger adaptability robustness and transplant.

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A New Flexible Rapid Thermal Processing System

MRS Proceedings ◽

10.1557/proc-389-307 ◽

1995 ◽

Vol 389 ◽

Author(s):

K. C. Saraswat ◽

Y. Chen ◽

L. Degertekin ◽

B. T. Khuri-Yakub

Keyword(s):

Control System ◽

Real Time ◽

Processing System ◽

Process Conditions ◽

Temperature Uniformity ◽

Real Time Control ◽

Wafer Temperature ◽

Time Control ◽

Wide Range ◽

Optical Flux

ABSTRACTA highly flexible Rapid Thermal Multiprocessing (RTM) reactor is described. This flexibility is the result of several new innovations: a lamp system, an acoustic thermometer and a real-time control system. The new lamp has been optimally designed through the use of a “virtual reactor” methodology to obtain the best possible wafer temperature uniformity. It consists of multiple concentric rings composed of light bulbs with horizontal filaments. Each ring is independently and dynamically controlled providing better control over the spatial and temporal optical flux profile resulting in excellent temperature uniformity over a wide range of process conditions. An acoustic thermometer non-invasively allows complete wafer temperature tomography under all process conditions - a critically important measurement never obtained before. For real-time equipment and process control a model based multivariable control system has been developed. Extensive integration of computers and related technology for specification, communication, execution, monitoring, control, and diagnosis demonstrates the programmability of the RTM.

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