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2013 international conference on Industrial engineering and Management Science(ICIEMS 2013)

作者： GUIMING LU SHANSHAN YU HUALING HE Institute of Information Engineering North China University of Water Resources and Electric Power

With the development of cloud computing technology, profound changes have taken place in all areas of society. Through the analysis of the characteristics of the cloud computing, with the demand of the Yellow River flood control , the application of cloud computing in the Yellow River flood control system and its architecture are put forward ,the architecture mainly consist of the infrastructure security considerations are made to cloud computing that is applied to the Yellow River flood control. Finally, prospects and direction of the Yellow River flood control system's development are prospected in cloud computing environment.

关键词： Cloud computing in the Application of the Yellow River Flood control system

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Hybrid timed event graph model for networked train operation simulation and timetable stability optimization

Hybrid timed event graph model for networked train operation...

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2013 international conference on Electrical and Information Technologies for Rail Transportation, EITRT 2013

作者： Meng, Xuelei Jia, Limin Qin, Yong Xu, Jie School of Traffic and Transportation Lanzhou Jiaotong University No. 88 Anning West Road Lanzhou Gansu China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University No. 3 Shangyuancun Beijing China

ISBN: (纸本)9783642537776

To improve the possibility of recovering the status that the trains are running as arranged by the timetable, a hybrid timed event graph model is presented. We analyze the discrete and continuous events, determining two kinds of discrete positions, two kinds of discrete transfers, a kind of continuous position, and a kind of continuous transfer for the hybrid timed graph model. We construct the hybrid timed event graph model for simulating train operation process, distributing trains on the different paths on the railway network. Then, the networked timetable stability is defined. Based on the definition, we give the method to optimize the networked timetable stability, repeating the simulation, till the satisfying results are attained. The computing case proves the feasibility of the model and the efficiency of the algorithm. The method presented in this paper can be embedded in the networked train operation dispatching system. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Scheduling

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An Genetic Algorithm approach for reactive power control problem

Proceedings of IEEE International Conference on Circuit, Pow...

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Proceedings of ieee international conference on Circuit, Power and computing Technologies, ICCPCT 2013 2013年 74-78页

作者： Godwin Immanuel, D. Chritober Asir Rajan, C. Department of Electrical and Electronics Engineering Sathyabama University Chennai India Department of Electrical and Electronics Engineering Pondicherry Engineering College Puducherry India

ISBN: (纸本)9781467349222

This paper presents a new approach of reactive power and voltage control for power system. Reactive power control plays a major role in operation and control of power system. The objectives of the proposed approach are the minimization of generation cost, the minimization of real power losses flowing in a power system and the voltage profile improvement. The proposed formulation employs Genetic Algorithm for proper settings of control variables to achieve the optimal solution. The effectiveness of the proposed approach has been examined and tested with standard ieee 30 bus test system. © 2013 ieee.

关键词： Power control

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An Adaptive Tuning Algorithm for ieee 802.15.4-based Network control system

An Adaptive Tuning Algorithm for IEEE 802.15.4-based Network...

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international conference on Intelligent Sensors, Sensor Networks and Information Processing

作者： Shuanglong Xie Kay Soon Low Erry Gunawan School of Electrical and Electronic Engineering Nanyang Technological University

ISBN: (纸本)9781479928446

A wireless network control system (WNCS) is a control system whose network is closed over a wireless channel. The control performance can be degraded due to the imperfection of the wireless network. This paper studies the co-design of Media Access control (MAC) layer parameters and sampling period of a model-based network control system (MB-NCS). In particular, a stability condition of MB-NCS in terms of packet loss, packet delay and sampling period is established. An adaptive tuning algorithm is proposed to find the optimum parameter set, which can guarantee the stability of control system and minimize the energy consumption. The results show that the co-design approach outperforms traditional network control system in terms of energy reduction and is robust against time-varying network traffic.

关键词： Model-based network control system ieee 802.15.4

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Democratization in Science and Technology through Cloud computing

Democratization in Science and Technology through Cloud Comp...

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international conference on Software engineering and Applications (ICSOFT-EA)

作者： Ivona Brandić Vienna UT Austria

ISBN: (纸本)9781479976904

To guarantee the vision of Quality of Service (QoS) different goals in terms of SLAs have to be dynamically met between the Cloud provider and the customer (Breskovic et al., 2013). This SLA enactment should involve little human-based interaction in order to guarantee the scalability and efficient resource utilization of the system. To achieve this we start from Autonomic computing, examine the autonomic control loop and adapt it to govern Cloud computing infrastructures. We propose an approach to manage Cloud infrastructures by means of Autonomic computing. The basic structure of the autonomic systems is represented by a control loop that monitors (M) Cloud parameters, analyses (A) them, plans (P) actions and executes (E) them; the full cycle is known as MAPE. MAPE-K loop stores knowledge (K) required for decision-making in a knowledge base (KB) that is accessed by the individual phases. This talk addresses the research question of finding a suitable KM system (i.e., a technique of how stored information should be used) and determining how it interacts with the other phases for dynamically and efficiently allocating resources.

关键词： Quality of Service dynamically met between determining Quality of service Cloud computing Resource utilization control ring Technology Fault tolerant computing Storing information CLOUDS Clouds INFRASTRUCTURE SLA gene

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A Fault Tolerant SINS/GPS/CNS Integrated Navigation Scheme Realized Through Federated Kalman Filter

A Fault Tolerant SINS/GPS/CNS Integrated Navigation Scheme R...

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8tth ieee/IACSIT/SCIEI international conference on Optimization of the Intelligent systems and Their Applications in Aerospace, Robotics, Mechanical engineering, Manufacturing systems, Biomechatronics and Neurorehabilitation (OPTIROB)

作者： Ushaq, Muhammad Cheng, Fang Jian Ali, Jamshaid Beihang Univ Sch Instrumentat Sci & Optoelect Engn 37 Xue Yuan Lu Beijing 100191 Peoples R China Natl Engn & Scientif Commiss Ctr Control & Instrumentat Islamabad Pakistan

ISBN: (纸本)9783037857335

The complementary characteristics of the Strapdown Inertial Navigation system (SINS) and external non-inertial navigation aids like Global Positioning system (GPS) and Celestial Navigation system (CNS) make the integrated navigation system an appealing and cost effective solution for various applications. SINS exhibits position errors owing to imperfection in initialization of the inertial measurement unit (IMU) and the inherent accelerometer biases and gyroscope drifts. SINS also suffer from diverging azimuth errors and an exponentially increasing vertical channel error. Pitch and roll errors also exhibit unbounded growth with time. To mitigate this behavior of SINS, periodic corrections are opted for through measurements from external non-inertial navigation aids. These corrections can be in the form of position fixing, velocity fixing and/or attitude fixing from external aids like GPS, GLONASS (Russian Satellite Navigation system), BEIDU(Chinese Satellite Navigation system) and Celestial Navigation systems (CNS) etc. In this research work GPS and CNS are used as external aids for SINS and the navigation solutions of all three systems (SINS, GPS and CNS) are fused using Federated Kalman Filter (FKF). The FKF differs from the conventional Central Kalman Filter (CKF) because each measurement is processed in Local Filters (LFs), and the results are combined in a Master Filter (MF). The SINS acts as a cardinal system in the combination, and its data is available as measurement input for the local filter and master filter. In this research work, information from the GPS and the CNS are dedicated to the corresponding LFs. Each LF provides its solutions to the master filter where all information is fused together forming a global solution. Simulation for the proposed architecture has validated the effectiveness of the scheme, by showing the substantial precision improvement in the solutions of position, velocity and attitude as compared to the pure SINS or any other stan

关键词： Inertial Navigation Integrated Navigation GPS Celestial Navigation Kalman Filtering Federated Kalman Filter Fault Tolerant Navigation

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Development and validation of an automated steering control system for bus revenue service

Development and validation of an automated steering control ...

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ieee international conference on Automation Science and engineering (CASE)

作者： Han-Shue Tan Jihua Huang Wei-Bin Zhang California PATH University of California Berkeley CA

This paper presents the development and validation of an automatic steering controller that has been successfully implemented on a 18.3-m articulated bus for revenue service in Eugene, Oregon, USA. The automated steering system provides both lane keeping and S-curve precision docking on a 4-km-long narrow and curving urban segment with six stations and mixed traffic lanes while the operator controls the speed. The objective of deployment with an extended period of revenue service (carrying passengers) elevated the system safety and performance requirements. To meet the requirements, the controller needed to address accuracy, robustness, comfort, and fault tolerant capabilities. The baseline high-gain controller adopted for the automated bus takes the structure of the steering mechanism of a human driver with optimized parameters. The fault tolerant control incorporates a family of Kalman filters to sustain the automation after part of the sensing system fails. The resultant system achieved all performance requirements and the revenue service started in June, 2013.

关键词： Vehicles Sensors Steering systems Testing Actuators Fault detection

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Artificial intelligence based high performance direct torque and flux control of induction motor drive

Proceedings of IEEE International Conference on Circuit, Pow...

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Proceedings of ieee international conference on Circuit, Power and computing Technologies, ICCPCT 2013 2013年 225-230页

作者： Ramesh, Tejavathu Panda, A.K. Bonala, Sathyam Department of Electrical Engineering National Institute of Technology Rourkela Orissa India

ISBN: (纸本)9781467349222

In this research study, direct torque and flux control of induction motor drive (IMD) using artificial intelligence based speed control loop (SCL) to minimize the ripple contents of the stator current, flux and electromagnetic torque, and also improving the speed response under transient and steady state conditions. It is quite difficult to optimize the high performance of DTC of IMD with conventional (PI-controller) scheme, because of the nonlinear model of induction motor. This system requires accurate and continuous tuning of gain values. Therefore, the fuzzy logic controller (FLC) and PI-FLC techniques are proposed to improve the system performance. The detailed simulation results are presented in forward motoring under no-load, load and sudden change in speed conditions using MATLAB/Simulink software to support the feasibility of the proposed control strategy. © 2013 ieee.

关键词： Induction motors

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Virtual torsional spring based bilateral control system for soft manipulation

Proceedings of IEEE International Conference on Circuit, Pow...

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Proceedings of ieee international conference on Circuit, Power and computing Technologies, ICCPCT 2013 2013年 337-343页

作者： Madawala, M.K. Abeykoon, A.M. Harsha S. Mihiran, B.G.C. Mohottige, D.C. Meththananda, R.G.U.I. Branesh Pillai, M. Department of Electrical Engineering University of Moratuwa Katubedda 10400 Sri Lanka

ISBN: (纸本)9781467349222

In recent years, although there are many researches on bilateral control, there is only little research on improvement of operationality. It will be so effective for operators to improve the operationality of the bilateral control system. In a bilateral control system, the law of action and reaction between master system which the operator manipulates, and the slave system which has contact with the environment is realized. Objective of this research is to eliminate the chattering and to reduce the impact on human operator at contact motion and to introduce controlling force to the slave manipulator to provide more comfort at the human operator's end. In this paper, a new method of improving the operationality which is based on a virtual torsional spring between master and slave system is discussed. Disturbance observer is used as the disturbance compensation tool and also to improve the system robustness. Then proposed method is applied by altering the bilateral control system. Finally the experimental results show the viability of the proposed method. © 2013 ieee.

关键词： Environmental regulations

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Adaptive PSO based tuning of PID controller for an Automatic Voltage Regulator system

Proceedings of IEEE International Conference on Circuit, Pow...

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Proceedings of ieee international conference on Circuit, Power and computing Technologies, ICCPCT 2013 2013年 661-666页

作者： Femmy Nirmal, J. Jeraldin Auxillia, D. Applied Electronics St. Xavier's Catholic College of Engineering Nagercoil India Department of ECE St. Xavier's Catholic College of Engineering Nagercoil India

ISBN: (纸本)9781467349222

In this paper, a Proportional-Integral-Derivative (PID) controller is designed for an Automatic Voltage Regulator (AVR) system, so that faster settling to rated voltage is ensured and the instability is avoided. AVR is a closed loop control system compensated with a PID controller. Particle Swarm Optimization (PSO) Algorithm, Simplified PSO (MOL) Algorithm, Adaptive PSO (APSO) Algorithm are used to tune the PID controller, to attain an optimal solution. MOL and APSO differ from the basic PSO in the velocity updation formula. MOL has the advantage of easy implementation and APSO has the advantage of faster convergence. Optimal control parameters are obtained by minimizing the objective function ITAE (Integral Time Absolute Error). Simulations are done to show the performance of PID controlled AVR system tuned using PSO, MOL, APSO algorithm and the results are compared. Time domain analysis and stability analysis are done using root locus and bode plots. © 2013 ieee.

关键词： Three term control systems

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