检索结果-内蒙古大学图书馆

第三届数字制造与自动化国际会议

作者： Shaoqiang Yuan Zhihua Shen School of Automation Science and Electrical Engineering Beihang University

Traditional development tools using assembly language takes a long time to accomplish the real-time control program. This paper presents a new platform for control system based on Matlab-DSP integrated development environment. The process of system design, simulation and experiment could be conducted smoothly in one integration platform. The hardware is based on DSP C2000 and the software based on the Matlab-DSP development environment needs to build the module and create custom device drive modules according to the hardware. algorithm researchers can apply Simulink tools build Matlab algorithm, and then RTW (Real-Time Windows) can automatically generate code for DSP C2000 board.

关键词： Matlab-DSP development environment control algorithm RTW

来源：评论

学校读者我要写书评

暂无评论

Operation of stripping sections in atmospheric-vacuum distillation units

引用

Chemistry and Technology of Fuels and Oils 1970年第6期6卷 406-409页

作者： Skoblo, A.I. Osinina, O.G. Skorokhod, A.A. I. M. Gubkin Moscow Institute of the Petrochemical and Gas Industry (MINKh i GP)

1. A study has been made of stripping-section operation with steam injection as a control object under commercial and laboratory conditions. 2. It has been shown that, as the steam injection rate is increased, the vapor number increases, but this increase tapers off rapidly. With steam injection rates above 5-7% (of residue), the vapor number is practically constant. 3. An investigation has been made of the effect of vapor number of changes in distillation curve of a feed-stock when it is fractionated in a stripping section. 4. It has been shown that experimental relationships obtained in a laboratory model unit can be used as a basis for developing process control algorithms for fractionation in commercial stripping sections. © 1971 Consultants Bureau.

关键词： Steam Fractionation Laboratory Condition Process control control algorithm

来源：评论

学校读者我要写书评

暂无评论

MATALB & Internet Based Remote control Laboratory

MATALB & Internet Based Remote Control Laboratory

引用

2009中国控制与决策会议

作者： Yuan Yao~1,Yaping Dai~1,DezhenTian~1,XinZhang~1 1.College of Information Science and Technology,Beijing Institute of Technology,Beijing,China,100081

In order to help undergraduates to study automatic control theory,and provide a common experiment platform based Internet for postgraduates to do research on control algorithm,we built a novel MATLAB & Internet Based Remote control Laboratory（MIRCLAB）.In the laboratory,Students can make use of M-language to do simulation experiments and demonstration practicality experiments of automatic control theory in *** addition,students can design their own controller and upload the controller to MCLAB to do the remote real-time control experiment. Examples of a cases study of uploading PID and LQR controller for remote real-time control inverted pendulum are shown in the paper.

关键词： MATLAB real-time control remote control control algorithm

来源：评论

学校读者我要写书评

暂无评论

Distributed control of Temperature Regimes for Structure Elements jf Autonomous Objects

Distributed Control of Temperature Regimes for Structure Ele...

引用

International Conference on Complex Systems: control and Modeling Problems

作者： Mikhail Livshits Boris Borodulin Yulia Saveleva Alexey Nenashev Samara State Technical University

ISBN: (纸本)9781728167015

Temperature field control system of the autonomous object of support structure with the information-measuring system is introduced. To compensate the thermal deformation of the structure due to the temperature field irregularity, caused by heating of information-measuring system elements, the control algorithm has been proposed for controlled heat-sources which are specially placed on the structure. The simulation in program software environment ANSYS shows high efficiency of the presented algorithm and management system.

关键词： control algorithm Thermal deformation Temperature field Supporting structure controllable heat source Computer algorithms supporting structure decentralised control Hot deformation Temperature fields structuring element Deformation microstructure Elements

来源：评论

学校读者我要写书评

暂无评论

Perturbation dynamics in turbulent flames 55

Perturbation dynamics in turbulent flames

引用

55th AIAA Aerospace Sciences Meeting

作者： Hassanaly, Malik Raman, Venkat Department of Aerospace Engineering University of Michigan Ann ArborMI48109-2102 United States

ISBN: (数字)9781624104473

ISBN: (纸本)9781624104473

A new approach based on dynamical systems theory is introduced in order to study turbulent combustion. Here, instead of the conventional statistical approach to chaotic systems, a perturbation-based dynamical systems approach is used. The main focus is in the characterization of the attractor, which represents the loci of solutions given a set of initial, boundary and operating conditions. In this paper, we discuss the basic formulation, the definition of so-called Lyapunov vectors and exponents, and the numerical approach for computing these quantities. The method is applied to a canonical premixed turbulent flame in a periodic box. The algorithms are developed in the context of low-Mach number direct numerical simulation solvers, which introduces certain unique complications. Tests of numerical convergence and behavior of the Lyapunov quantities are discussed. © 2017 by Malik Hassanaly.

关键词： Premixed Turbulent Flames Mach Number Direct Numerical Simulation Computing Mass Flux Fluid Flow Poiseuille Flow Finite Volume Method control algorithm Poisson's Equation

来源：评论

学校读者我要写书评

暂无评论

REAL-TIME TORQUE RIPPLE MINIMIZATION OF OUTER ROTOR SWITCHED RELUCTANCE MOTOR

REAL-TIME TORQUE RIPPLE MINIMIZATION OF OUTER ROTOR SWITCHED...

引用

作者： YONGQI LI Texas A&M University

学位级别：硕士

The Switched Reluctance Motor (SRM) is becoming more and more attractive because of its simple structure, robustness and cost-efficiency. It is a good candidate for variable speed applications such as Electric Vehicles (EVs), electric ships, aerospace, wind turbines, etc. However, the SRM inherently suffers from high torque ripple which is the main limitation preventing its use in high-performance applications. To reduce this torque ripple, the turn-on and turn-off angles of the motor phases can be adjusted. In this thesis, the SRM fundamentals are investigated along with the inductance model. For the linear case, the inductance is calculated using the analytical method. The non-linear model is then discussed as an improvement to this method. control loops are designed based on the system block diagrams which are derived from the small signal model. The turn-on angle is calculated according to the operating conditions, and the turn- off angle is varied within a small range. At each combination of turn-on and turn-off angles, torque ripple, which is defined as the summation of the differences between each instantaneous torque and the average torque, is estimated and compared with other combinations. Based on these results, the best firing angle is selected to achieve the minimum possible torque ripple. The method is verified using simulations in Matlab/Simulink and physical experiments. The control algorithm is implemented on a microcontroller for the experiments and it is able to tune the firing angles in real time at different operating conditions. Spectrum analysis of the torque signal is used to prove the reduction of torque ripple.

关键词： switched reluctance motor firing angles torque ripple minimization control algorithm Thesis

来源：评论

学校读者我要写书评

暂无评论

Intelligent Moving Machine (IMM) Based on Battery for an Efficient Regenerative Braking System 2nd

Intelligent Moving Machine (IMM) Based on Battery for an Eff...

引用

2nd International Conference on Recent Advances in Mechanical Engineering, RAME 2020

作者： Yadav, Amit Chaturvedi, D.K. Kant, Ajay Jain, Garima Kumar, Anil Dayalbagh Educational Institute Dayalbagh Agra India Department of Mechanical Production & Industrial and Automobile Engineering Delhi Technological University Delhi India

ISBN: (纸本)9789811596773

Modern-day electric vehicle technology is based on batteries and semiconductor devices;these systems have complementary features which can be successfully used in an electrical energy storage system for intelligent moving machine which is known as IMM. The utilization of the electrical energy storage system in electrical moving machine provides more advantages, like efficient regenerative braking energy, life span of battery, and improved acceleration of IMM. In this research paper, a new regenerative braking system (RBS) is developed for electric vehicle technology using electrical energy storage system and run by brushless DC (BLDC) motor. During the runtime of IMM when it takes brake, the BLDC acts as a generator. Hence, by using an appropriate artificial neural network technique and switching algorithm, the DC link voltage is boosted, and the energy is transferred to the superconductor devices and the battery through the inverter. To provide a reliable and smooth braking regeneration system, the braking force distribution is realized through a soft computing technique. Checking the performance of the regenerative braking system, different modeling and simulations performance test and experiments are carried out in indoor and outdoor environment. The IMM experiment result confirms high capacity of the future RBS technology. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Artificial neural network (ANN) BLDC motor control algorithm Electric vehicle (EV) Regenerative braking system (RBS)

来源：评论

学校读者我要写书评

暂无评论

Inspection Planning control of Laser Guided Measurement Robot

Inspection Planning Control of Laser Guided Measurement Robo...

引用

7th World Congress on Intelligent control and Automation (WCICA 2008), vol.4

作者： Wanli Liu Xinghua Qu Jianfei Ouyang Yonggang Yan State Key Laboratory of Precision Measuring Technology and Instruments University of Tianjin Tianjin China Precision Engineering Institute University of Henan Polytechnic Jiaozuo Henan China

Laser tracking system (LTS) is a portable 3D large size coordinate measuring machines (CMM), it measures 3D coordinates with laser beam by following a spherically mounted retro-reflector (SMR) with the advantages of broad range, high speed and high accuracy. However, the current inspecting task of LTS is performed manually to move SMR along the different position on the surface of a given part and measured with the trial-and-error approach. In order to perform LTS more efficiently and automatically, this paper has developed a laser guided measurement robot (LGMR) based on a new theory "laser beam moving and SMR tracking" instead of the traditional method "SMR moving and laser beam tracking". A systematic control algorithm of generating optimal inspection planning based on CAD-directed model is proposed for LGMR to inspect free-form surfaces. The control algorithm not only generates the movement orientation, position and optimal distance for LGMR, but also a consistent and efficient inspection process that can avoid the unnecessary trials in manual operations and reduce inaccuracy and inconsistency due to different operators. The experiment result has demonstrated that the inspection planning control algorithm can be integrated to the LGMR and generated automated scanning process under automaticity and accuracy constraints.

关键词： Laser guided Measurement robot Inspection planning control algorithm

来源：评论

学校读者我要写书评

暂无评论

Embedded system considerations for advanced algorithms in electric drives

Embedded system considerations for advanced algorithms in el...

引用

IEEE International Electric Machines and Drives Conference, IEMDC 2015

作者： Stettenbenz, Michael Vicente, Patrick Bazzi, Ali University of Connecticut StorrsCT United States

ISBN: (纸本)9781479979417

Implementation of advanced control algorithms can result in improved drive performance, reliability and efficiency, but may increase embedded system hardware requirements. Through use of tunable automated optimization methods, development of controller code for embedded systems is refined to reduce performance requirements of the target hardware. Computational costs in clock cycles per sample (CCPS), flash memory usage and total stack consumption are compared for open- and closed-loop control systems in addition to an advanced efficiency-enhancement closed-loop controller. The effects of applied optimization techniques on the embedded coding side are discussed. © 2015 IEEE.

关键词： control algorithm Electric drive embedded code processor in the Loop

来源：评论

学校读者我要写书评

暂无评论

Robust Adaptive Re-Adhesion control for High Speed Trains

Robust Adaptive Re-Adhesion Control for High Speed Trains

引用

IEEE International Conference on Intelligent Transportation Systems

作者： Kuan Lu Yongduan Song Wenchuan Cai Sch. of Electron. & Inf. Eng. Beijing Jiaotong Univ. Beijing China

ISBN: (纸本)9781479960798

Effective re-adhesion control is plays an important role in enhancing safe and reliable operation of high speed trains (HST). This paper presents a robust adaptive re-adhesion control strategy for HST. This control algorithm developed is not only able to attenuate wheel skid timely, but also capable of utilizing available adhesion properties to maintain preferable traction/braking performance after re-adhesion, even if the rail-wheel system exhibits significant adhesion uncertainties and nonlinearities. To achieve satisfactory slip velocity tracking, an optimal seeking strategy is introduced to provide the desired slip velocity. It is shown that the proposed strategy can automatically adjust the control torque to drive the train in the way to make it operate away from slip region but closer to the neighborhood of the optimal adhesion point, such that preferable traction/braking capability is guaranteed after re-gaining adhesion. Effectiveness of the proposed re-adhesion strategy has been confirmed by theoretical analysis and numerical simulation.

关键词： adaptive control adhesion mechanical variables control rail traffic control railway safety robust control HST operation HST safety braking performance control algorithm high speed trains rail-wheel system robust adaptive re-adhesion control strategy slip velocity traction performance wheel skid attenuation Adhesives Educational institutions Observers Rails Robustness Torque Wheels

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：