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6th Many-Core Applications Research Community Symposium, MARC 2012

作者： Woithe, H.C. Brozas, W. Wills, C. Pichai, B. Kremer, U. Eichhorn, M. Riepen, M. Dept. of Computer Science Rutgers University Piscataway NJ08854 United States Institute for Automation and System Engineering Ilmenau University of Technology Ilmenau98684 Germany Intel Labs Braunschweig Braunschweig Germany

ISBN: (纸本)9782725700168

Autonomous underwater vehicles (AUVs) have become indispensable tools for marine scientists to study the world's oceans. Real time examination of mission data can substantially enhance the overall effectiveness of AUVs in oceanography. However, current AUV technology only allows a detailed analysis of data after completion of a mission. The ability to perform onboard analysis of real time data is computationally intensive, requiring an energy efficient programming infrastructure that can be adapted to battery operated, energy constrained vehicles. Intel's 48-core SCC system exposes a collection of performance and energy/power knobs that can be refined for dynamically changing computation vs. energy tradeoffs. In this paper, we illustrate the potential benefits of these knobs for environment modeling and path planning. These applications are important for any autonomous cyber-physical system. Our experimental case study targets AUVs, particularly the Slocum glider. The results show that selecting different core, network, and memory controller speeds have a significant impact on the overall performance and energy requirements of our applications. Furthermore, the best selection is non-trivial and will depend on the available energy and computational needs of other mission critical tasks executing concurrently with modeling/path planning applications. © Proceedings of the 6th Many-Core Applications Research Community Symposium, MARC 2012. All rights reserved.

关键词： Autonomous underwater vehicles

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Economic load dispatch using strength pareto gravitational search algorithm with valve point effect

Economic load dispatch using strength pareto gravitational s...

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2012 International Conference on Artificial Intelligence, ICAI 2012

作者： Shayanfar, H.A. Ghasemi, A. Amjady, N. Abedinia, O. Center of Excellence for Power System Automation and Operation Elect. Eng. Dept. Iran University of Science and Technology Tehran Iran Young Researcher Club Ardabil Branch Islamic Azad University Ardabil Iran Electrical Engineering Department Semnan University Semnan Iran

ISBN: (纸本)1601322178

The Strength Pareto Gravitational Search Algorithm (SPGSA) to solve Economic Load Dispatch (ELD) is presents this paper with various generator constraints in power systems. The ELD problem in a power system is to determine the optimal combination of power outputs for all generating units which will minimize the total fuel cost while satisfying all practical constraints. For practical generator operation, many nonlinear constraints of the generator, such as ramp rate limits, prohibited operating zone, generation limits, transmission line loss and non-smooth cost functions are all considered using the proposed technique. The proposed algorithm applied on different test standard power system. The effectiveness of the proposed method is compared with other heuristic algorithm. Results showed the efficiency of the proposed algorithm.

关键词： Heuristic algorithms

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A stochastic unit commitment in power systems with high penetration of Smart Grid technologies

A stochastic unit commitment in power systems with high pene...

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Iranian Conference on Smart Grids (ICSG)

作者： S.A.H. Bahreyni M.A. Khorsand Shahram Jadid Center of Excellence for Power System Automation and Operation Dept. of Electrical Engineering Iran University of Science and Technology Tehran Iran Visiting Professor Center for Urban Energy Ryerson University Toronto Canada

Smart Grids are result of utilizing novel technologies such as energy storage systems, distributed generation, demand response resources, and communication technologies in power system to compensate some of its defects. Because of these technologies, various domains of power system will change. Power system operator will encounter various resources. Demand response resources which may be connected to distribution system or transmission system, distributed generation resources, energy storage systems, and renewable generations such as wind and PV farms are some of these resources. Power system operator should use a powerful methodology to manage these resources. Independent system operator should use a stochastic method to manage them. Stochastic unit commitment is presented in this paper to schedule various power resources such as distributed generation units, conventional thermal generation units, wind and PV farms, and demand response resources. Demand response resources which are connected to distribution network, Interruptible loads, distributed generation units, and conventional thermal generation units are used to provide required reserve for compensating stochastic nature of various resources and loads. In the presented model, resources connected to distribution network can participate in wholesale market through aggregators. Moreover, a three-program model which can be used by aggregators is presented in this article. Loads and distributed generation can contract with aggregators via these programs. A three-bus test system is used to illustrate usefulness of the presented model. The results show that ISO can manage the system effectively by using this model.

关键词： Uncertainty Contracts TV Production

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A new concept in evaluating power system distortions under unbalanced and nonsinusoidal conditions

A new concept in evaluating power system distortions under u...

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2010 9th Conference on Environment and Electrical engineering, EEEIC 2010

作者： Kenari, M. Tourandaz Mohamadian, S. Shoulaie, A. Centre of Excellence for Power System Automation and Operation Dept. of Electrical Engineering Iran University of Science and Technology Tehran Iran

ISBN: (纸本)9781424453719

This paper presents a new index to evaluate a distorted signal under unbalanced and harmonic conditions. This criterion is called total harmonic and unbalanced distortion (THUD) which can be used to calculate the amount of harmonics and unbalance of voltage, current and power waveforms. Whereas conventional factors such as V/V+ and THD are fairly incomplete to express the total distortion of a signal in both harmonic and unbalanced environments, the use of alternative factors in such cases seems to be mandatory. It is demonstrated that the proposed voltage total harmonic and unbalanced distortion (VTHUD) along with voltage total harmonic distortion (VTHD) and voltage total unbalanced distortion (VTUD) are appropriate factors to achieve to this purpose. Furthermore, THUD is an extensive factor to compare two distorted environments from aspect of power quality issues.

关键词： Harmonic analysis

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RETRACTED ARTICLE: Optimal placement and sizing of DG and capacitor for the loss reduction via methods of generalized pattern search and genetic algorithm

RETRACTED ARTICLE: Optimal placement and sizing of DG and ca...

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Asia-Pacific Power and Energy engineering Conference, APPEEC 2010

作者： Haghdar, Kazem Shayanfar, Heidar Ali Dept. of Electrical Engineering Iran University of Science and Technology Tehran Iran Centre of Excellence for Power System Automation and Operation

ISBN: (纸本)9781424448135

Optimal placement and sizing of Distributed Generation (DG) and capacitor for the loss reduction in distribution networks is of utmost importance. Therefore, in this paper by means of using new method of generalized pattern search and genetic algorithm are elaborated and compared with another. Another fact is the direct link between PSAT with the two previous methods. For the generation of this relationship with PSAT software, by writing an innovative program we were able to give PSAT variable inputs, genetic algorithm and new method of generalized pattern search in any population generation of new amount, processes it with PSAT and this procedure is continuous objective function. The results of this simulation is put on a sample network of 16-bus. These results show the higher effectiveness and faster speed of generalized pattern search in comparison with the genetic algorithm. Also, DG improves loss reduction and voltage profile much more better than the capacitor and is more effective. ©2010 IEEE.

关键词： Genetic algorithms

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Optimized fractional order conditional integrator

Optimized fractional order conditional integrator

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作者： Luo, Ying Chen, YangQuan Pi, Youguo Monje, Concepción A. Vinagre, Blas M. Dept. of Automation Science and Engineering South China University of Technology Guangzhou China Dept. of Electrical and Computer Engineering Utah State University Logan UT United States Dept. of System Engineering and Automatics Higher Technical School University Carlos III of Madrid Madrid Spain Dept. of Electrical Electronic and Automatic Engineering Industrial Engineering School University of Extremadura Spain

ISBN: (纸本)9781424474264

In this paper, an optimized fractional order conditional integrator (OFOCI) is proposed. The key feature of this OFOCI is that, the fractional order α and the parameter κ for the "hold" value in the course of integration can be tuned following the analytical optimality design specifications, to achieve the optimized performance not achievable using integer order conditional integrators. The proposed optimality specifications are given to satisfy the desired phase delay, and minimize the preferred magnitude ratio, which can be calculated from the high order harmonic magnitudes divided by the magnitude of the fundamental wave. The numerical solution of calculating the optimized parameters α and κ of the OFOCI is introduced. The phase delays and magnitude ratios of four designed OFOCIs are compared with the integer order conditional integrators. Simulation results with the FFT spectra are also presented to validate the theoretical analysis. © 2010 AACC.

关键词： Specifications

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Fault diagnosis based on wavelet package and phase spectrum for helicopter rotor

Fault diagnosis based on wavelet package and phase spectrum ...

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International Conference on Electrical and Control engineering, ICECE 2010

作者： Liu, Hongmei Lu, Chen Ouyang, Pingchao Wang, Shaoping Dept. of System Engineering of Engineering Technology Beihang University Beijing 100191 China Dept. of Spacecraft System Design China Academy of Space Technology Beijing 100191 China School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China

ISBN: (纸本)9780769540313

Considering difficulty in extracting feature and localizing fault for helicopter rotor, a new method based on wavelet energy spectrum and phase spectrum is presented. The wavelet package analysis is adopted to eliminate the noise in the actual signals to increase signal-to-noise ratio, and to extract energy feature vector in various frequency bands through signal decomposition and single reconfiguration. And Fast Fourier Transform algorithm is applied to obtain initial phase. Rotor fault diagnosis and localization is realized by combining the wavelet energy feature vector with initial phase spectrum. Experiments results validate the effectiveness of this method. © 2010 IEEE.

关键词： Failure analysis

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Optimized Fractional Order Conditional Integrator

Optimized Fractional Order Conditional Integrator

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American Control Conference

作者： Ying Luo YangQuan Chen Youguo Pi Concepcion A. Monje Blas M. Vinagre Dept. of Automation Science and Engineering South China University of Technology Guangzhou P. R. China Dept. of Electrical and Computer Engineering Utah State University Logan UT 84322 USA Dept. of System Engineering and Automatics Higher Technical School University Carlos III of Madrid Madrid Spain Dept. of Electrical Electronic and Automatic Engineering Industrial Engineering School University of Extremadura Spain

ISBN: (纸本)9781424474264

In this paper, an optimized fractional order conditional integrator (OFOCI) is proposed. The key feature of this OFOCI is that, the fractional order alpha and the parameter k for the "hold" value in the course of integration can be tuned following the analytical optimality design specifications, to achieve the optimized performance not achievable using integer order conditional integrators. The proposed optimality specifications are given to satisfy the desired phase delay, and minimize the preferred magnitude ratio, which can be calculated from the high order harmonic magnitudes divided by the magnitude of the fundamental wave. The numerical solution of calculating the optimized parameters alpha and k of the OFOCI is introduced. The phase delays and magnitude ratios of four designed OFOCIs are compared with the integer order conditional integrators. Simulation results with the FFT spectra are also presented to validate the theoretical analysis.

关键词： Clegg conditional integrator intelligent conditional integrator fractional order conditional integrator phase delay high order harmonic wave describing function optimality specifications phase delay Describing functions integrators fractional order Integer Conditional magnitude ratio

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Grey systems for intelligent sensors and information processing

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Journal of systems engineering and Electronics 2008年第4期19卷 659-665页

作者： Chen Chunlin Dong Daoyi Chen Zonghai Wang Haibo Dept. of Control and System Engineering School of Management and Engineering Nanjing Univ. Nanjing 210093 P. R. China State Key Laboratory for Novel Software Technology Nanjing Univ. Nanjing 210093 P. R. China Dept. of Automation Univ. of Science and Technology of China Hefei 230027 P. R. China

In a measurement system, new representation methods are necessary to maintain the uncertainty and to supply more powerful ability for reasoning and transformation between numerical system and symbolic system. A grey measurement system is discussed from the point of view of intelligent sensors and incomplete information processing compared with a numerical and symbolized measurement system. The methods of grey representation and information processing are proposed for data collection and reasoning. As a case study, multi-ultrasonic sensor systems are demonstrated to verify the effectiveness of the proposed methods.

关键词： grey system grey sensors information processing

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Virtual power electronics: Novel software tools for design modeling and education

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IEEJ Transactions on Industry Applications 2008年第8期128卷 969-978页

作者： Hamar, Janos Nagy, István Funato, Hirohito Ogasawara, Satoshi Dranga, Octavian Nishida, Yasuyuki Dept. of Automation and Applied Informatics Budapest University of Technology and Economics Goldmann Gyorgy ter 3 1111 Budapest Hungary Power Electronics Laboratory Dept. of Electrical and Electronic Engineering Utsunomiya University 7-1-2 Yoto Utsunomiya 321-8585 Japan Division of System Science and Infomatics Graduate School of Information Science and Technology Hokkaido University Kita 14 Nishi 9 Kita-ku Sapporo 060-0814 Japan School of Engineering James Cook University Townsville QLD 4811 Australia Dept. of Electrical and Electronic Eng. College of Engineering Nihon University Tokusada Tamura-machi Kouriyama 963-8642 Japan

The current paper is dedicated to present browser-based multimedia-rich software tools and e-learning curriculum to support the design and modeling process of power electronics circuits and to explain sometimes rather sophisticated phenomena. Two projects will be discussed. The so-called Inetele project is financed by the Leonardo da Vinci program of the European Union (EU). It is a collaborative project between numerous EU universities and institutes to develop state-of-the art curriculum in Electrical engineering. Another cooperative project with participation of Japanese, European and Australian institutes focuses especially on developing e-learning curriculum, interactive design and modeling tools, furthermore on development of a virtual laboratory. Snapshots from these two projects will be presented. © 2008 The Institute of Electrical Engineers of Japan.

关键词： E-learning

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