检索结果-内蒙古大学图书馆

20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Wang, Caiwei Wu, Yanjuan Cong, Peizhi He, Yuzhe Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Binshui Xidao 391 Tianjin China

ISBN: (纸本)9798350320831

In the context of high permeability of renewable energy, a large number of uncertain energy sources, such as scenery, have brought a huge impact on the security and stability of the comprehensive energy system. In order to reduce the impact of renewable energy on the new power system and improve the system stability, In this paper, a comprehensive energy system of the park is set up, which consists of three kinds of energy loads including source side electricity, heat, gas and scenery, and electric heat. On this basis, Monte Carlo method is adopted to simulate multiple sets of scenes respectively for the scenery output. On this basis, scene reduction method is adopted to reduce them to obtain the final equivalent force diagram, so as to reduce the influence of the uncertainty of scenery on the system stability. Finally, the effectiveness of the proposed method is verified by simulation analysis. © 2023 IEEE.

关键词： Monte Carlo methods

来源：评论

学校读者我要写书评

暂无评论

Based on Hybrid Densenet-121 with Support Vector Machine Algorithm for Lettuce and Chili 20

Based on Hybrid Densenet-121 with Support Vector Machine Alg...

引用

20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： He, Yuzhe Wu, Yanjuan Wang, Caiwei Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Binshui Xidao 391 Tianjin China

ISBN: (纸本)9798350320831

In this paper, to improve the recognition accuracy of Densenet-121, we combine Densenet-121 with SVM to generate a new network Densenet-121-SVM. In this paper, the two datasets are combined to generate a new dataset named Mixed-dataset, which has four plants, namely: Lettuce, Chili, Chinee apple, and Lantana, and this dataset is used to train the network. Finally, the recognition accuracies of SVM, Densenet121 and Densenet-121-SVM are 84.144%, 96.211% and 98.181%, respectively, and it can be seen that the accuracy of Densenet-121-SVM is improved by 14% and 1.97% compared to SVM and Densenet-121, respectively. © 2023 IEEE.

关键词： Lettuce

来源：评论

学校读者我要写书评

暂无评论

Linear active disturbance rejection control of phase-shifted full-bridge converter based on improved particle swarm optimization algorithm 20

Linear active disturbance rejection control of phase-shifted...

引用

20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Wang, HongSen Wu, YanJuan Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Binshui Xidao 391 Tianjin China

ISBN: (纸本)9798350320831

In order to improve the dynamic performance and disturbance suppression ability of conventional PID control phase shift full-bridge converter, LADRC based on improved particle swarm optimization is proposed. The voltage loop transfer function of phase-shifted full-bridge converter is derived based on the state space average method. Secondly, LESO and LSEF are designed to estimate and compensate the external disturbance and internal uncertainty in real time. Finally, the advantages of linear active disturbance rejection controller are verified by simulation experiments. The experimental results show that the controller has better disturbance suppression performance and dynamic performance than the traditional PID controller. © 2023 IEEE.

关键词： controllers

来源：评论

学校读者我要写书评

暂无评论

Research on Sign Language Gesture Division and Gesture Extraction in Complex Background

Research on Sign Language Gesture Division and Gesture Extra...

引用

2022 International Conference on Computer Vision, Application, and Algorithm, CVAA 2022

作者： Tian, Yifan Han, Fangfang Zhu, Minfeng Xu, Xiaoliang Li, Yadong School of Electrical Engineering and Automation China Tianjin University of Technology Tianjin300384 China Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems China

ISBN: (纸本)9781510664036

Sign language plays an important role in information transmission and emotional communication between deaf-mute people and the outside world. With the development of artificial intelligence technology, the recognition, translation and generation of sign language based on digital image processing have attracted worldwide attention. In the field of sign language recognition, effective hand division and gesture extraction are the first and key steps, which directly affect the accuracy of sign language recognition. In this paper, a hand information extraction method based on depth image processing is proposed to solve the problem of sign language gesture extraction in complex background. For sign language speakers,hands are at the front of their bodies, so the depth images of sign language speakers can be collected by depth camera, and the complex background can be removed and hand information can be extracted by segmenting different color objects in the depth images. In this paper, the D435i camera of Inter is used to capture the depth image of the sign language speaker, and the HSV color space model based on the digital image is used for threshold processing of the fusion of hue components and brightness components to achieve the division of the hand position;through median filtering and mathematical morphology of digital image, division noise is removed and interference is reduced. Through skeleton extraction algorithm, the gesture gesture can be obtained. Experiments show that the proposed acquisition scheme and algorithm flow in this paper can effectively realize hand position division and gesture extraction in complex background conditions, and provide a good foundation for subsequent gesture recognition and expression. © 2023 SPIE.

关键词： Morphology

来源：评论

学校读者我要写书评

暂无评论

Real-time scheduling strategy for electric vehicles based on sliding window transmission optimization 20

Real-time scheduling strategy for electric vehicles based on...

引用

20th IEEE International Conference on Mechatronics and Automation, ICMA 2023

作者： Cong, Peizhi Wu, Yanjuan Wang, Caiwei Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Binshui Xidao 391 Tianjin China

ISBN: (纸本)9798350320831

In order to reduce the impact of electric vehicle(EV) charging load on the power grid, a real-time optimal scheduling scheme for charging and discharging Evs is proposed. Firstly, the objective is to reduce charging costs and network loss costs, aiming to minimize the total cost of EVs at the current time. An EV dispatching model is established, the grid node acceptance capacity performance is analyzed by constructing a network loss sensitivity index, and the EV charging and discharging strategy is obtained in real time based on the time-of-use tariff of the grid load by means of a tide calculation and a sliding window variable speed optimization algorithm as well as a second-order convex optimization calculation method. Finally, the proposed strategy is verified to be effective in reducing the charging cost and network loss cost, and has good real-time flexible dispatching performance, using an improved IEEE 39-node distribution network as an example. © 2023 IEEE.

关键词： Electric vehicles

来源：评论

学校读者我要写书评

暂无评论

Research on Hearing-Impaired EEG Emotion Recognition Based on Deep Residual Shrinkage Networks 42

Research on Hearing-Impaired EEG Emotion Recognition Based o...

引用

42nd Chinese control Conference, CCC 2023

作者： Cheng, Meiyi Gao, Qiang Bai, Zhongli Chen, Yirui Liu, Yang Song, Yu School of Electrical Engineering and Automation Tianjin University of Technology Tianjin300382 China Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems Tianjin300382 China

ISBN: (纸本)9789887581543

With the development of affective computing and computer science, electroencephalogram (EEG) based emotion recognition has attracted much more attention. In this paper, we collected EEG signals from fifteen healthy people and fifteen hearing-impaired people when they were watching five kinds of emotional pictures (fear, anger, sadness, happiness and neutral). The collected EEG signals are preprocessed to remove artifacts by independent component analysis (ICA). Then the differential power spectral density, entropy, and wavelet entropy features were extracted (PSD, DE, WE). The Deep Residual Shrinkage Networks (DRSNs) were composed of residual building units (RBU s) and an attention mechanism was used to capture the representative features, and then made a classification. The classification results prove that using DE as a feature for classification is better than other features, with an average accuracy being 76.35% and 80.47% for the hearing-impaired group and the normal group, respectively. Moreover, from the brain topography, we found that there are certain differences in brain function between hearing-impaired and healthy people. © 2023 Technical Committee on control theory, Chinese Association of Automation.

关键词： Electroencephalography

来源：评论

学校读者我要写书评

暂无评论

Research on hearing-impaired EEG Emotion Recognition Based on Deep Residual Shrinkage Networks

Research on hearing-impaired EEG Emotion Recognition Based o...

引用

第42届中国控制会议

作者： Meiyi Cheng Qiang Gao Zhongli Bai Yirui Chen Yang Liu Yu Song Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems

With the development of affective computing and computer science,electroencephalogram(EEG) based emotion recognition has attracted much more *** this paper,we collected EEG signals from fifteen healthy people and fifteen hearing-impaired people when they were watching five kinds of emotional pictures(fear,anger,sadness,happiness and neutral).The collected EEG signals are preprocessed to remove artifacts by independent component analysis(ICA).Then the differential power spectral density,entropy,and wavelet entropy features were extracted(PSD,DE,WE).The Deep Residual Shrinkage Networks(DRSNs) were composed of residual building units(RBUs) and an attention mechanism was used to capture the representative features,and then made a *** classification results prove that using DE as a feature for classification is better than other features,with an average accuracy being 76.35% and 80.47% for the hearing-impaired group and the normal group,***,from the brain topography,we found that there are certain differences in brain function between hearing-impaired and healthy people.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Fixed-Time prescribed performance fault-Tolerant control for quadrotor UAV based on ESO

引用

International Journal of systems, control and Communications 2023年第3期14卷 207-235页

作者： Liu, Lei Li, Junfang Ji, Yuehui Liu, Junjie Song, Yu Niu, Wenxing Tianjin Key Laboratory for Control Theory Applications in Complicated Industry Systems School of Electrical Engineering and Automation Tianjin University of Technology Tianjin300384 China Tianjin Enpromi Environmental Protection Technology Co. Ltd. Tianjin300462 China

Considering the need for high precision control in the flight process of quadrotor unmanned aerial vehicle (UAV), a kind of fault-Tolerant control strategy based on fixed-Time prescribed performance control (FXTPPC) and extended state observer (ESO) is designed to solve the control problem of quadrotor UAV in the case of external disturbance, output error constraint and fault. Firstly, a simplified model of quadrotor UAV is established. Secondly, a double closed-loop fixed-Time continuous output feedback controller based on inner loop attitude control and outer loop position control is designed. The actuator fault, sensor fault and external disturbance are estimated and compensated by ESO in real time to effectively solve the quadrotor stability control problem. Further, a FXTPPC function is introduced to convert the original constrained nonlinear system into the equivalent unconstrained nonlinear system. Finally, the stability analysis shows that the designed controller can guarantee the stability of system. Simulation results also verify the effectiveness of the proposed scheme. The tracking error can converge rapidly to the range specified by the performance function within the fixed time. © 2023 Inderscience Enterprises Ltd.

关键词： Attitude control

来源：评论

学校读者我要写书评

暂无评论

Extended State Observer-Backstepping control for Grid-Tied PV System 37th

Extended State Observer-Backstepping Control for Grid-Tied P...

引用

37th Annual Conference on Power System and Automation in Chinese Universities, CUS-EPSA 2022

作者： Xu, Zhao Ji, Yuehui Liu, Junjie The School of Electrical Engineering and Automation Tianjin University of Technology Tianjin300384 China Tianjin Key Laboratory for Control Theory and Applications in Complicated Industry Systems Tianjin300384 China

ISBN: (纸本)9789819914388

As a distributed energy source, the photovoltaic system will affect the stability of the power grid in the grid connected operation mode. To meliorate the control effect of the inverter and the power quality of the grid connected photovoltaic microgrid, a control strategy based on the backstepping method is designed for the grid connected inverter of the photovoltaic system. Firstly, the dynamic model of the photovoltaic system is given, and the unmodeled parts are appended. Secondly, on the basis of backstepping method, the unmodeled amount is compensated by extended state observer, and an arbitrary-order fixed-time differentiator is employed to solve the "computational complexity" problem. Finally, the stability of the system is proved by the Lyapunov theory. The simulation results verify the advanced property of the proposed controller. © 2023, State Grid Electric Power.

关键词： Power quality

来源：评论

学校读者我要写书评

暂无评论

Simulation of Triboelectric Nanogenerator Output Characteristics of Different Resistance Loads 25

Simulation of Triboelectric Nanogenerator Output Characteris...

引用

25th IEEE China Conference on System Simulation Technology and its Application, CCSSTA 2024

作者： Xu, Liang Zhang, Xiuzhe Du, Xiuke Yue, Xiaolong Zhao, Xiande Tianjin University of Technology Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems Tianjin China Beijing Academy of Agriculture and Forestry Sciences Key Laboratory of Agricultural Sensors Ministry of Agriculture Rural Affairs Research Center of Intelligent Equipment Beijing China

ISBN: (纸本)9798350366600

With the increasing demand for green energy, triboelectric nanogenerators (TENG) have the potential to harvest energy from the environment in a small size range to power microelectronic devices. Still, its performance is affected by impedance matching problems. In this study, the effect of impedance matching on the performance of the TENG was investigated. The generator output power is simulated by Simulink software, and the theoretical usability of TENG was demonstrated by driving the load. Firstly, a mathematical model of the TENG was developed to consider its operating principle, and the transferred charge and voltage-current output under different impedance conditions were simulated. Then, the effect of impedance matching on the output of the TENG on its generator was analyzed by adjusting the impedance of the TENG with the external circuit. The results show that by adjusting the impedance value, the generator can be made to work in a more efficient operating region, which helps to promote the development of TENG technology. © 2024 IEEE.

关键词： Triboelectricity

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：