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Research of Information Interaction Simulation Method in Cooperative Vehicle Infrastructure system

Research of Information Interaction Simulation Method in Coo...

17th international ieee conference on Intelligent Transportation systems & The Asia-Pacific Council on systems engineering conference 2014

作者： Baigen Cai Congcong Wang Wei Shang Guan Jian Wang School of Electronic and Information Engineering and State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University

The efficiency and performance of simulation method for information interaction process of Vehicular Ad-hoc Network（VANET） plays a crucial role in future Cooperative Vehicle Infrastructure system（CVIS）.This paper puts forward a simulation method for information interaction process in CVIS based on the High Level Architecture（HLA） platform which consists of traffic simulator based on Paramics,network simulator based on OPNET and communication evaluation system in which evaluation indexes are integrated into the evaluation architecture through link-relative *** simulation components act in close coordination with proposed time synchronization mechanism adaptively with feedback of their time *** test traffic scenario was built for the simulation *** outstanding simulation results show that the time synchronization mechanism can shorten the time difference between Paramics and OPNET with proper step size,and the communication evaluation method we proposed in simulation platform can reflect the variation tendency of communication performance of VANET simulation system.

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A Novel Framework of Context-aware system Based on Space Mapping

A Novel Framework of Context-aware System Based on Space Map...

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2013 ieee 4th international conference on Software engineering and Service Science

作者： Quanlong Li Cheng Li He Ting Hanchuan Xu School of Computer Science and Technology Harbin Institute of Technology

ISBN: (纸本)9781467349970

As ubiquitous computing envi ronments grow faster,more and more context-aware systems ar e developed for *** these systems,the modeling and reasoning of context is very *** paper first proposes a concept of space mapping and then based on this concept,a simple but practical framework for context-aware system is ***,analyses of this framework prove its advantages in efficiency,scalability and flexibility.

关键词： context-aware computing ubiquitous computing space mapping context modelling

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Study of Individual's Risk Perception in Collective Violent Events

Study of Individual's Risk Perception in Collective Violent ...

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2014 ieee international conference on Progress in Informatics and computing

作者： Fanliang Bu Huisen Dang Mengmeng Gao Department of Engineering of Security & Protection System PPSUC

This paper uses Agent-based modeling and simulation tostudy collective violent events from the perspective of individual's risk perception, by abstracting individual's risk preference, emotion factor, risk level and other factors we analyze and explore the influence of each factors tocollective violent events. Considerable simulations indicate that, individual's density risk preference determines assemble morphology of the crowd and the event-relevance and emotion factor together determine the trend of events, while police's timely and effective intervention could prevent the spreading of the events. These conclusions provide meaningful theoretical basis for relevant organs.

关键词： collective violent events risk perception Agent

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Gravitational search algorithm based Automatic Generation control for interconnected power 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 558-563页

作者： Rout, Umesh Kumar Sahu, Rabindra Kumar Panda, Sidhartha Burla Odisha-768018 India

ISBN: (纸本)9781467349222

This paper presents the design and performance analysis of Gravitational Search Algorithm (GSA) based Proportional-Integral (PI) controller for Automatic Generation control (AGC) of an interconnected power system. A two area non-reheat thermal system equipped with PI controllers which is widely used in literature is considered for the design and analysis purpose. The design problem is formulated as an optimization problem and GSA is employed to search for optimal controller parameters. Three different objective functions using Integral Time multiply Absolute Error (ITAE), damping ratio of dominant eigen values and settling times of frequency and tie line power deviations with appropriate weight coefficients are derived in order to increase the performance of the controller. The superiority of the proposed GSA optimized PI controller is demonstrated by comparing the results with some recently published modern heuristic optimization techniques such as Bacteria Foraging Optimization Algorithm (BFOA) and Genetic Algorithm (GA) based PI controller for the same interconnected power system. It is observed that the dynamic performance of GSA optimized PI controller is better than BFOA and GA optimized PI controllers. © 2013 ieee.

关键词： Electric power system interconnection

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A ROP PREDICTION APPROACH BASED ON IMPROVED BP NEURAL NETWORK

A ROP PREDICTION APPROACH BASED ON IMPROVED BP NEURAL NETWOR...

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2014 ieee 3rd international conference on Cloud computing and Intelligence systems

作者： Jinan Duan Jinhai Zhao Li Xiao Chuanshu Yang Huinian Chen Sinopec Research Institute of Petroleum Engineering

Effective prediction of ROP(Rate of Penetration) is a crucial part of successful well drilling *** to the penetration complexities and the formation heterogeneity,traditional way such as ROP equations and regression analysis are confined by their limitations in the drilling *** the accumulation of the geology data and drilling logs,data-based modelling methods like ANN become powerful tools in modern drilling *** paper proposed a ROP prediction approach based on improved BP neural network *** main idea is to build prediction model of target well from well logs through the improved BP neural network modelling *** the training process,the traditional BP training algorithm is improved by introducing momentum factor and the dynamical learning rate,which are able to notably increase the speed of converging and obtain better generalization *** collect and analyze the well log of the No.104 well in Yuanba,*** experiment results show that the proposed approach is able to effectively utilize the engineering data,and provide accurate ROP prediction in the areas which have certain amount of data collection.

关键词： ROP prediction BP neural network BP improvement ROP equations

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Power flow control and protection in micro-grid

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 424-429页

作者： Bharathi Kannan, K. Sreeram Kumar, R. Noorul Islam University Kanyakumari Tamil Nadu India King Abdulaziz University Jeddah Saudi Arabia

ISBN: (纸本)9781467349222

In this paper, a micro-grid consists of clusters of load and distributed generators that operate as a single controllable system is explored by means of computer simulations. The interconnection of distributed generator to the utility through power electronics converters has raised concern about safe operation and protection of the equipment. In this work, a method for power flow control between utility and micro-grid through back-to-back converters, which facilitates desired real power flow between utility and micro grid is presented. controlled power flow between the micro-grid and the utility can be used in case of any contractual arrangement. In the case of a fault in either utility or micro-grid side, the protection system should act not only to clear the fault but also to block the back-to-back converters so that its dc bus voltage does not fall during fault. The converter's internal mechanism prevents it from supplying high current during a fault and this makes the operation of a protection system complicated. To overcome this, an admittance based relay scheme is proposed. The investigation reveals that the proposed protection and control schemes are able to ensure reliable operation of a micro-grid. The model of the power system is simulated in PSCAD. © 2013 ieee.

关键词： Electric load flow

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Robotic system Used for Navigation and Tracking, in Real Time, with the Obstacle Avoidance

Robotic System Used for Navigation and Tracking, in Real Tim...

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2014 3rd international conference on Mechanical engineering and Materials(ICMEM 2014)

作者： Dan Popescu Loretta Ichim Radu Fratila Diana Gornea Faculty of Automatic Control and Computers University Politehnica of Bucharest

Tracking the road or a mobile object and also obstacle avoidance are very important components that must be considered in the process of developing a robotic *** this paper we propose a mobile platform for indoor navigation,based on a cheap computing hardware,which is able to be configured in two scenarios:the first refers to the movement of the robot on a predetermined path and to avoidance the obstacles,while maintaining the final target,and the second refers to the possibility of identifying and tracking a *** robotic system aggregates the information acquired from different sensors and combines the computing resources from the mobile platform with those from the central *** is used for all the implementations and tests,to develop algorithms and to create models and *** robot's communication with central unit is *** results show that the mobile platform is able to perform,in real time,the following tasks in indoor environment:the recognition of the object,localization and tracking and also the obstacles avoidance.

关键词： Mobile robot Object tracking Obstacle avoidance Camera based navigation system Real time image processing

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Real time simulation based study of effect of exciter gain on control mode oscillations in power 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 540-544页

作者： Hasan, Md Asif Anwar, Anwaruddin Ahmad, Faiz Tayyab, Mohammad Deptt. of Electrical Engg AMU Aligarh India

ISBN: (纸本)9781467349222

A power system consists of the generating machine and transmission network in which the generating machine includes turbine, alternator and excitation system. The ability of power system to remain stable despite of small frequency oscillations occurring in the system is called small signal stability. A generating system operating without voltage regulation may have the problem of steady increase in rotor angle due to lack of synchronizing torque. With voltage regulation the power system may have the sustained oscillations due to negative damping torque. In this paper the effect of exciter gain on small signal oscillations has been studied. A single machine infinite bus system (SMIB) is taken as test system and the simulation result is obtained for variation in electrical torque, rotor angle variation and rotor speed variation for different values of exciter gain. © 2013 ieee.

关键词： Voltage regulators

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Position and Speed Sensor Fault Tolerant Sinusoidal PWM Drive for Permanent Magnet Synchronous Motor

Position and Speed Sensor Fault Tolerant Sinusoidal PWM Driv...

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2nd international conference on control and Fault-Tolerant systems (SysTol)

作者： Achirica, R. Bosque, G. Univ Basque Country UPV EHU Dept Elect Technol Bilbao Spain

ISBN: (纸本)9781479928552

In this paper the position and speed sensor fault tolerant sinusoidal PWM (SPWM) drive for Interior Permanent Magnet Synchronous Motor (IPMSM) based on Extended Kalman Filter (EKF) is built in Matlab/Simulink environment. It shows that minimizing the estimation error of the position and speed signals a transition between a sensorised and sensorless controls system can be made.

关键词： Kalman filters angular velocity control control engineering computing fault tolerance machine control mathematics computing nonlinear filters permanent magnet motors position control power engineering computing synchronous motor drives

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Stability analysis of a Networked control systems with time-varying delays using Parameter Dependant Lyapunov Function

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 306-309页

作者： Bonala, Sathyam Subudhi, Bidyadhar Ghosh, Sandip Das, Dushmanta Kumar NIT Rourkela India

ISBN: (纸本)9781467349222

The stability analysis of a Networked control systems (NCSs) with network induced time-varying delays presented in this article. The time-varying delays considered less than as well larger than sampling period. The uncertainties in the system arising with variations of the time-delays. The closed loop system is represented in discrete time domain. The uncertain closed loop system is modeled using polytopic approach. For stability, the static state feed back controller is used. The proposed Parameter Dependant Lyapunov Function (PDLF) stability criterion is compared with Quadratic Lyapunov Function (QLF) approach. The Lyapunov based stability criterion is represented in terms of Linear Matrix inequalities (LMIs). The stability region represented in terms of controller gain and maximum tolerable delay. The maximum tolerable delay found by solving LMIs for given different controller gains. The effectiveness of the proposed method is validated using two numerical examples. © 2013 ieee.

关键词： Networked control systems

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