Smith Prediction Monitor AGC System Based on CPSO Self-Tuning Pi Control

2013 ◽  
Vol 753-755 ◽  
pp. 2602-2606
Author(s):  
Ya Feng Ji ◽  
Dian Hua Zhang ◽  
Jie Sun ◽  
Xu Li
Keyword(s):  
Rolling Mill ◽  
Design Method ◽  
Dynamic Performance ◽  
Pi Control ◽  
Swarm Optimization ◽  
Self Tuning ◽  
Hot Rolling Mill ◽  
Simulation Results ◽  
Chaotic Particle Swarm Optimization ◽  
Pure Delay

In accordance with the feature of pure delay in monitor AGC system for hot rolling mill, a new self-tuning PI Smith prediction controller based on chaotic particle swarm optimization (CPSO) is developed. The algorithmic principle and design method of new controller are given. Based on the typical monitor AGC model of tandem hot mill, the analysis of dynamic performance for traditional PI Smith prediction controller and CPSO self-tuning PI Smith prediction controller is done by MATLAB. The simulation results indicate that CPSO self-tuning PI Smith prediction controller has faster response and higher static accuracy than traditional PI Smith prediction controller.

scholarly journals A chaotic particle swarm optimization algorithm for solving optimal power system problem of electric vehicle

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401983350 ◽  
Author(s):  
Tianjun Zhu ◽  
Hongyan Zheng ◽  
Zonghao Ma
Keyword(s):  
Particle Swarm Optimization ◽  
Electric Vehicles ◽  
Optimization Algorithm ◽  
Particle Swarm Optimization Algorithm ◽  
Dynamic Performance ◽  
Particle Swarm ◽  
Vehicle Dynamic ◽  
Swarm Optimization ◽  
Simulation Results ◽  
Chaotic Particle Swarm Optimization

Transportation of electrification has become a hot issue in recent decades and the large-scale deployment of electric vehicles has yet to be actualized. This article proposes a powertrain parameter optimization design approach based on chaotic particle swarm optimization algorithm. To improve the driving and economy performance of pure electric vehicles, chaotic particle swarm optimization algorithm is adopted in this study to optimize principal parameters of vehicle power system. Vehicle dynamic performance simulations were carried out in the Cruise software, and the simulation results before and after optimization were compared. Simulation results show that optimized vehicles by chaotic particle swarm optimization can meet the expected dynamic performance and the driving range has been greatly improved. Meanwhile, it is also viable that the parameters of the optimal objective function can achieve the purpose of balancing the driving performance and economic performance, which provides a reference for the development of vehicle dynamic performance.

scholarly journals The Effect of Parameters on PI Control for Hydraulic Looper Control in Hot Rolling Mill

2018 ◽  
Vol 381 ◽  
pp. 012063 ◽  
Author(s):  
Wenyu Ma ◽  
Tao Li ◽  
Xibang Zhang ◽  
Jianxin Fan ◽  
Ye Yao ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Rolling Mill ◽  
Pi Control ◽  
Hot Rolling Mill

Analysis and Design of E-Shaped Dual-Frequency Microstrip Antenna Based on CPSO Algorithm

2013 ◽  
Vol 760-762 ◽  
pp. 487-491
Author(s):  
Wei Ao ◽  
Wan Qin Xiang ◽  
Chun Ming Chen ◽  
Wei Tian ◽  
De Bin Zhang
Keyword(s):  
Particle Swarm Optimization ◽  
Microstrip Antenna ◽  
Dual Frequency ◽  
Wide Bandwidth ◽  
Swarm Optimization ◽  
Design And Optimization ◽  
Analysis And Design ◽  
Optimized Model ◽  
Simulation Results ◽  
Chaotic Particle Swarm Optimization

In order to solve the problem of design and optimization for E-shaped patch microstrip antenna, chaotic particle swarm optimization (CPSO) algorithm was proposed to assist the procedure. First, the E-shaped antennas model was created, and then, the parameters of this antenna were adjusted according to the CPSO algorithm, and the procedure was repeated until the antennas capabilities meet the requirements. The simulation results showed that, the optimized model of such antenna, was capable of dual-frequency operation in 1.8GHz and 2.4GHz, and it was also capable of wide bandwidth, could meet the requirements very well.

scholarly journals Particle Swarm Optimization Algorithm with Adaptive Chaos Perturbation

2015 ◽  
Vol 15 (6) ◽  
pp. 70-80 ◽  
Author(s):  
Dong Yong ◽  
Wu Chuansheng ◽  
Guo Haimin
Keyword(s):  
Numerical Simulation ◽  
Particle Swarm Optimization ◽  
Particle Swarm Optimization Algorithm ◽  
Particle Swarm ◽  
Chaotic Sequence ◽  
Swarm Optimization ◽  
Chaotic Mapping ◽  
Simulation Results ◽  
Chaotic Particle Swarm Optimization ◽  
Modified Algorithm

Abstract Most of the existing chaotic particle swarm optimization algorithms use logistic chaotic mapping. However, the chaotic sequence which is generated by the logistic chaotic mapping is not uniform enough. As a solution to this defect, this paper introduces the Anderson chaotic mapping to the chaotic particle swarm optimization, using it to initialize the position and velocity of the particle swarm. It self-adaptively controls the portion of particles to undergo chaos update through a change of the fitness variance. The numerical simulation results show that the convergence and global searching capability of the modified algorithm have been improved with the introduction of this mapping and it can efficiently avoid premature convergence.

Study and design of dual stator permanent magnet machine with spoke-type configurations using phase-group concentrated-coil windings

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1381-1389
Author(s):  
Dezhi Chen ◽  
Chengwu Diao ◽  
Zhiyu Feng ◽  
Shichong Zhang ◽  
Wenliang Zhao
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Low Cost ◽  
Dynamic Performance ◽  
Torque Ripple ◽  
Permanent Magnet Machine ◽  
Torque Density ◽  
Phase Group ◽  
High Torque ◽  
Simulation Results

In this paper, a novel dual-stator permanent magnet machine (DsPmSynM) with low cost and high torque density is designed. The winding part of the DsPmSynM adopts phase-group concentrated-coil windings, and the permanent magnets are arranged by spoke-type. Firstly, the winding structure reduces the amount of copper at the end of the winding. Secondly, the electromagnetic torque ripple of DsPmSynM is suppressed by reducing the cogging torque. Furthermore, the dynamic performance of DsPmSynM is studied. Finally, the experimental results are compared with the simulation results.

Analysis of interconnections between technical systems on hierarchically connected technological levels of steel sheet production by hot rolling

2020 ◽  
Vol 76 (8) ◽  
pp. 847-855
Author(s):  
E. N. Shiryaeva ◽  
M. A. Polyakov ◽  
D. V. Terent'ev
Keyword(s):  
Hot Rolling ◽  
Systems Analysis ◽  
Rolling Mill ◽  
Steel Sheet ◽  
Technological System ◽  
Necessary Condition ◽  
Rolled Sheet ◽  
Technological Systems ◽  
Hot Rolling Mill ◽  
Technical Systems

Complexity of modern metallurgical plants, presence of great number of horizontal and vertical interactions between their various structural subdivisions makes it necessary to apply a systems analysis to elaborate effective measures for stable development of a plant operation. Among such measures, digitalization of a plant is widespread at present. To implement the digitalization it is necessary to have clear vision about links at all the levels of the technological system of a plant. A terminology quoted, accepted in the existing regulatory documents for defining of conceptions, comprising the technological system. It was shown, that the following four hierarchical levels of technological systems are distinguished: technological systems of operations, technological systems of processes, technological systems of production subdivisions and technological systems of plants. A hierarchical scheme of technological systems of hot-rolled sheet production at an integrated steel plant presented. Existing horizontal and vertical links between the basic plant’s shops shown. Peculiarities of flows of material, energy and information at the operation “rolling” of the technological system “hot rolling of a steel sheet” considered. As a technical system of the technological process of the hot rolling, the hot rolling mill was chosen. A structural diagram of the hot rolling mill was elaborated, the mill being consisted of reheating furnaces, roughing and finishing stand groups, with an intermediate roll-table between them, and down-coilers section. Since the rolling stands are the basic structural elements of the hot rolling mill, structural diagrams of a roughing and a finishing stands were elaborated. Results of the systems analysis of the technological and technical systems, hierarchically linked in the process of steel sheet hot rolling, can be applied for perfection of organization structure of the whole plant, as well as for elaboration mathematical models of a system separate elements functioning, which is a necessary condition for a plant digitalization.

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