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检索条件"任意字段=International Conference on Electrical Engineering Computing Science and Automatic Control"

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A Two-Stage Power System Partitioning Method Based on Improved K-Means Clustering 4

A Two-Stage Power System Partitioning Method Based on Improv...

引用

4th IEEE international conference on Power, Electronics and Computer Applications, ICPECA 2024

作者： Zhang, Jian Ma, Ruicong Cao, Yongji Zhang, Hengxu Li, Baoliang Liu, Zhiwen School of Electrical Engineering Shandong University Jinan China Academy of Intelligent Innovation Shandong University Jinan China

ISBN: (纸本)9798350359589

Grid zoning can simplify the process of grid analysis, and zonal control management is conducive to grid stability. This paper considers the homogeneity of power system unit operation, describes the principle of two-stage automatic partitioning method, and proposes the absolute spatial distance and frequency response trajectory deviation indexes according to the principle. This paper also proposes the two-stage partitioning method of provincial and local resources. The controllable regulation resources are partitioned by the improved K-means clustering method. A provincial power grid is analyzed as an example, and the results show that the unit division obtained by the proposed method has better uniformity. © 2024 IEEE.

关键词： controllable resource frequency dynamic response K-means clustering partitioning method

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Zero Current Detection Circuit based on Saturable Transformer Application in GaN based DC-DC Converter with Triple-Mode Switching 64

Zero Current Detection Circuit based on Saturable Transforme...

引用

64th IEEE Annual international Scientific conference on Power and electrical engineering of Riga Technical University, RTUCON 2023

作者： Kroics, Kaspars Gaspersons, Kristians Makar, Martin Riga Technical University Institute of Industrial Electronics and Electrical Engineering Riga Latvia University of Zagreb Faculty of Electrical Engineering and Computing Department of Electric Machines Drives and Automation Zagreb Croatia

ISBN: (纸本)9798350317732

This paper analyzes application of saturable transformer for zero current detection in GaN based converter at a switching frequency above 100 kilohertz. The design of the transformer is discussed in a simplified way, development of experimental prototype of the transformer has been given. Zero current detection (ZCD) has been tested on experimental prototype of DC-DC converter. Delay times introduced by the transformer, detection circuit and digital control system have been analyzed. The efficiency of the converter by introducing triple-mode switching with ZCD circuit has been investigated. The results show that the summary delay is at least 250 nanoseconds and at such frequencies the core heats up significantly and lowers efficiency which limits the application of the circuit for switching frequencies above 250 kilohertz. © 2023 IEEE.

关键词： DC-DC converters

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Finite–control–Set Model Predictive control for a Single–Phase Cascaded H–Bridge Multilevel Converter Operating as a Shunt Active Power Filter

Finite–Control–Set Model Predictive Control for a Single–...

引用

international conference on electrical engineering, computing science and automatic control (CCE)

作者： Roberto Morales-Caporal Div. de Est. de Posg. e Inv. Tec. Nal. de Méx./Inst. Tec. de Apizaco Apizaco México

This paper presents a finite-control-set model predictive control (FCS-MPC) for a single-phase cascaded H-bridge (CHB) five-level converter operating as a shunt active power filter (SAPF). Using the MPC scheme in a CHB multilevel converter, a high dynamic performance of the system with reduced harmonic distortion is achieved; but, as the number of output voltage levels increases, the method increases the computational load as a result of a significant number of switching states evaluation, for this reason, in this paper a FCS-MPC scheme is proposed to use a reduced number of switching sets for the control of the multilevel converter and to reduce the computational burden. The discrete model of the system, the generation of the compensation signal, as well as the FCS-MPC algorithm are exposed. Furthermore, to regulate the dc-link voltage, a discrete-time fractional order PI λ controller is designed. The simulated results validate the developed control algorithm for the single-phase CHB multilevel converter-based SAPF.

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Performance Analysis of a Wireless IoT Networks with Robust Resource Distribution Mechanism

Performance Analysis of a Wireless IoT Networks with Robust ...

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2023 IEEE international conference on Intelligent and Innovative Technologies in computing, electrical and Electronics, ICIITCEE 2023

作者： Rohini, S. Shankari, S. R.M.K. Engineering College Department of Computer Science and Engineering Chennai India R.M.K. College of Engineering and Technology Department of Computer Science and Engineering Chennai India

ISBN: (纸本)9781665462631

IoT, or the Internet of Things, has great potential as a means to link together vast quantities of equipment and gadgets in upcoming communication systems. In this research, we examine a hybrid access point (HAP) that wirelessly supplies power to the Internet of Things (IoT) gadgets and that in turn uses that power to send back to the HAP small packets received accomplished by limited block length codes. SPC has a lower transmission rate and a higher packet error rate than traditional wireless systems' long packet communication. Given this new reality, the traditional method of allocating resources in the current literature, which is based on the Shannon capacity attained by unlimited block length codes, is no longer the most efficient. In this article, we defined organizational and effective-amount-of-information even as evaluation criteria to control the network throughput as well as the packet dropping rate, as well as Enhancing transmitting effectiveness and reliability, we conscious efforts throughput of the network and the packet losses rate of each client to maximize or limit the overall effective-throughput, depending on people's unique effective-amount-of-information requests. We build effective methods to discover well-enough suboptimal solutions to the defined issues in order to deal with their non-convexity. The suggested techniques have been shown to outperform the benchmark schemes in simulations, and attain operating efficiency comparable to those of the ideal solution found by exhaustive search. © 2023 IEEE.

关键词： Internet of things

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Weighted Fuzzy Rough Sets Feature Selection for High Dimensional Classification Problems

Weighted Fuzzy Rough Sets Feature Selection for High Dimensi...

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2024 IEEE international conference on Systems, Man, and Cybernetics, SMC 2024

作者： Khabusi, Simon Peter Huang, Yo-Ping Vu, Van Phong National Taipei University of Technology Department of Electrical Engineering Taipei10608 Taiwan National Penghu University of Science and Technology Department of Electrical Engineering Penghu88046 Taiwan Ho Chi Minh City University of Technology and Education Department of Automatic Control Ho Chi Minh City71300 Viet Nam

ISBN: (纸本)9781665410205

Feature selection holds significant importance in knowledge mining as it plays a pivotal role in selecting and preserving the most informative features within a dataset while discarding irrelevant, redundant, or noisy attributes. This process contributes to enhancing model performance, reducing computational complexity, and refining interpretability, thus facilitating more accurate and efficient data analysis. In high-dimensional datasets, the necessity for feature selection becomes more pronounced due to the heightened risk of encountering the curse of dimensionality. Therefore, this study proposes a weighted fuzzy rough quickreduct (FRQR) feature selection approach employing feature weights to handle the equal situation problem inherent in FRQR. The proposed method is evaluated on ten publicly available datasets with feature sizes ranging from 2000 to 15154. The selected features are used to train and test random forest candidate models whose estimates are then combined according to the posterior probabilities by Bayesian Model Averaging (BMA). The performance of the model on the selected features is evaluated on four performance metrics. The essentiality of the selected features is further determined by comparing the model classification performance achieved on the non-selected features and all the dataset features. The results indicate competitiveness in the performance metric values achieved on selected features over the other two feature categories affirming the efficacy of the proposed method. © 2024 IEEE.

关键词： Feature Selection

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Efficient photodecoloration catalysts, based on ZnO nanoparticles coated in two steps on glass substrates 19

Efficient photodecoloration catalysts, based on ZnO nanopart...

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19th international conference on electrical engineering, computing science and automatic control, CCE 2022

作者： Dominguez-Flores, R. Estrella-Suarez, M.V. Vega-Perez, J. Maldonado, A. Centro de Investigación y de Estudios Avanzados Del I.P.N. Nanoscience and Nanotechnology PhD Program Mexico City Mexico Instituto Tecnológico de Tlalnepantla Department of Electrical Engineering State of Mexico Mexico Sees Centro de Investigación y de Estudios Avanzados Del I.P.N. Department of Electrical Engineering Mexico City Mexico

ISBN: (数字)9781665455084

ISBN: (纸本)9781665455084

ZnO, ZnO:Ag and ZnO:Cu thin coatings were prepared on glass substrates by an innovative dip-coating technique coupled with the addition of ZnO nanoparticles and their structural, morphological and optical properties were investigated. X-ray Diffraction (XRD) analysis revealed the coatinǵs hexagonal wurtzite phase with a preferred (002) plane orientation. The mean crystallite size calculated on the basis of the Debye-Scherrer model was 31 nm and a small dislocation density of 1.04×10-3 nm-2 was obtained, indicating the existence of few lattice defects and good crystallinity. The atomic force microscopy (AFM) observation showed the coatinǵs granular nature composed of spherical nanoparticles with almost homogeneous distribution. The average transmittance in the visible región is around 75-80% and optical bandgap, 3.25 eV, respectively were obtained for our coatings indicating their suitability in photocatalytic applications. UV-vis spectrometry reveals a methylene blue (MB) dye decoloration efficiency of 96% after 180 min using ZnO:Ag (3:3 layers) film. © 2022 IEEE.

关键词： II-VI semiconductors

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automatic Heliostat Directing System Based On Microcontroller ESP32

Automatic Heliostat Directing System Based On Microcontrolle...

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2023 international conference on electrical engineering and Informatics, ICEEI 2023

作者： Medyanto, Richard Sanjaya, Nicholas Liawatimena, Suryadiputra Binus Aso School of Engineering Bina Nusantara University Automotive & Robotics Program Computer Engineering Department Jakarta11480 Indonesia Bina Nusantara University Binus Graduate Program - Computer Science Computer Science Department Jakarta11480 Indonesia

ISBN: (纸本)9798350381290

Solar energy is one of the most abundant sources of renewable energy in Indonesia. Solar energy is now typically harnessed using solar panels, but the low efficiency of photovoltaic cells requires the development of other alternatives. The heliostat is a sunlight directing device with mirrors that can be used in a concentrated solar power system. Current heliostats require high capital investment due to their large frames and expensive components. This research was undertaken to develop a lower cost heliostat using a smaller frame, ESP32 microcontroller, servo motor and low-cost components. The position of the sun can be determined using an algorithm based on the National Oceanic and Atmospheric Administration (NOAA) solar calculator, and the mirror is moved to maintain the sun's reflection on a target. The result of this research is a set of heliostat prototypes consisting of the frame and control system. Tests were carried out to test the performance of the designed heliostat and it was found that the heliostat has an accuracy of about 60 cm and can raise temperatures up to 3.41°C. The conclusion is that the heliostat can be used in a concentrated solar power system to heat boilers in solar power towers. © 2023 IEEE.

关键词： Solar energy

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Lateral and longitudinal coupling control of autonomous vehicles using adaptive integral terminal super-twisting sliding mode control 7

Lateral and longitudinal coupling control of autonomous vehi...

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7th CAA international conference on Vehicular control and Intelligence, CVCI 2023

作者： Lu, Linying Wang, Wei Zhang, Ting Jiao, Xiaohong School of Electrical Engineering Yanshan University Qinhuangdao China

ISBN: (纸本)9798350340488

Vehicle motion control is one of the key technologies to achieve automatic vehicle driving, including lateral and longitudinal control. However, obtaining an accurate mathematical model of the vehicle is problematic because it is a complex nonlinear system and there are problems of external disturbances, model uncertainty, and parameter perturbations during the motion. For these challenges, this paper proposes an adaptive integral terminal super-twisting sliding mode control strategy based on a nonlinear disturbance observer for the vehicle's lateral and longitudinal coordinated trajectory tracking system. External disturbances and system modeling errors are considered integrated disturbances, and a nonlinear disturbance observer compensates for their impact on control performance. An integral-type terminal sliding mode surface is designed, and introducing a global term enhances the convergence performance of the system. The controller outputs the front wheel turning angle and the longitudinal drive to control the automatic vehicle steering and regulate the vehicle speed, respectively, ensuring coupled path and speed tracking. Finally, the effectiveness of the designed strategy is validated by the co-simulation platform of Carsim and MATLAB/Simulink. © 2023 IEEE.

关键词： autonomous vehicles nonlinear system sliding mode control trajectory tracking

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Brightness gain and maximum output brightness adjustment method and test system of third-generation Low-light-level image intensifier 3

Brightness gain and maximum output brightness adjustment met...

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3rd international computing Imaging conference, CITA 2023

作者： Ren, Yingnan Yan, Bo Zhang, Linlin Jiao, Gangcheng Ni, Xiaobing Song, Haihao Science and Technology on Low-Light-Level Night Vision Laboratory Xi’an710065 China Kunming Institute of Physics Kunming650223 China

ISBN: (纸本)9781510671409

For the current brightness gain and maximum output brightness adjustment method of image intensifier has low efficiency, time-consuming, low precision, and other problems, this paper firstly studies a communication protocol from the perspective of digital communication of auto-gating power supply microcontroller. By means of communication with the host computer, the corresponding parameters of the internal program of the auto-gating power supply microcontroller are adjusted. Secondly, the hardware interface of the whole tube communication of the image intensifier is designed. Finally, the calibrated experimental device is used to adjust the brightness gain and maximum brightness of the whole tube, and the automatic brightness control function of the adjusted whole tube is verified. The adjustment time is short, the adjustment precision is high, and the matching between the auto-gating power supply and the image tube can be better realized. © 2023 SPIE.

关键词： Luminance

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automatic Generation control of Virtual Power Plant for High-proportion Heterogeneous Distributed Photovoltaics 2

Automatic Generation Control of Virtual Power Plant for High...

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2nd international conference on Smart Grids and Energy Systems, SGES 2023

作者： Ma, Junchao Lu, Chengyu Wang, Chenxu Xia, Yanghong Feng, Qifan Peng, Yan State Grid Zhejiang Electric Company Economic Research Institute Co. LTD. Hangzhou China Zhejiang University College of Electrical Engineering Hangzhou China

ISBN: (纸本)9798350371659

In the current virtual power plant (VPP) design schemes, photovoltaic (PV) generator is seen as an indispensable choice. Due to the significant differences in the unit capacity and operating characteristics of PV, the coordination of start-stop PV units and continuously adjustable PV units poses a noteworthy challenge in VPP with high-level PV penetration. To solve the problem, this paper presents an automatic generation control (AGC) instruction allocation algorithm using mixed integer liner programming (MILP) with a special inverter controller of PV. Based on the simulation cases, this algorithm can facilitate effective coordination between start-stop PV units and continuously adjustable PV units within VPP. © 2023 IEEE.

关键词： Virtual Power Plants

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