DECOMPOSITION METHOD FOR MODELING AND RESEARCH OF PULSE-FREQUENCY CONTROL SYSTEMS

2020 ◽  
Vol 2020 (4) ◽  
pp. 145-153
Author(s):  
A Kadirov ◽  
Keyword(s):  
Automatic Control ◽  
Control Systems ◽  
Decomposition Method ◽  
Frequency Control ◽  
Pulse Frequency ◽  
Single Variable ◽  
Pulse Frequency Modulation ◽  
Automatic Control Systems ◽  
Signal Flow Graphs ◽  
Analysis And Synthesis

The pulse-frequency control systems are widely used in radar, space industry, for control of technological processes and robots and many other areas. Today, there are various approximate and accurate methods for the analysis and synthesis of pulse-frequency systems (PFS). However, the area of the practical application of the existed methods is mainly limited to single-variable systems. The classical methods provide the consideration of the initial structures of pulse-frequency systems as a whole. This article proposes the decomposition method for modeling and research pulse-frequency automatic control systems. The method is based on the mathematical apparatus of signal-flow graphs. We can use the method for analysis and synthesis of both single-variable and multivariable automatic control systems with pulse-frequency modulation

Application of Characteristic Pattern Methodology to the Design of Reheat Furnace Multi-Variable Control Systems

1992 ◽  
Vol 206 (1) ◽  
pp. 29-34 ◽  
Author(s):  
I H Ting ◽  
N E Gough ◽  
G M Dimirovski ◽  
V P Deskov
Keyword(s):  
Control Systems ◽  
Process Model ◽  
Computer Control ◽  
Systems Design ◽  
Characteristic Pattern ◽  
Steel Mill ◽  
Reheat Furnace ◽  
Variable Control ◽  
Control Scheme ◽  
Control Systems Design

Characteristic pattern methodology, a multi-variable control system design technique based on discrete convolution algebra, is applied to the design of a candidate computer control scheme for a steel mill reheat furnace. Time domain process input-output data are used as the basis for the process model. A robust control scheme is designed, and its performance is compared with that of a traditional decentralized three-term controller, using CBSL, a multi-variable control systems design package.

Pole-placement self-tuning control of a fixed-bed autothermal reactor. Part I: Single variable control

AIChE Journal ◽  
1986 ◽  
Vol 32 (6) ◽  
pp. 1004-1014 ◽  
Author(s):  
P. E. McDermott ◽  
D. A. Mellichamp ◽  
R. G. Rinker
Keyword(s):  
Fixed Bed ◽  
Pole Placement ◽  
Single Variable ◽  
Variable Control ◽  
Self Tuning
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