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第35届中国控制会议

作者： WANG Hong-Du WU Huai-Ning GUO Lei Zhang Ling College of Engineering Ocean University of ChinaKey Laboratory of Marine Mechanical and Electrical Equipments and Instruments of Shandong Provincal Education DepartmentQingdao Research Center of Marine Instruments and Equipments Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University

ISBN: (纸本)9781509009107

This paper presents a design method of nonlinear disturbance observer based control(NLDOBC) for a class of nonlinear systems with the disturbance modeled by the nonlinear exosystem. First, the virtual disturbance measurement output is defined. Then, a NLDOBC scheme is constructed to estimate and compensate the modeled disturbance. Subsequently, an linear matrix inequality(LMI)-based design method of NLDOBC is developed such that the augmented system is exponentially stable and then the original closed-loop system is exponentially stable in the presence of the modeled disturbance. Finally, some simulation results are given to show its effectiveness of the proposed method.

关键词： nonlinear disturbance observer based control(NLDOBC) nonlinear exosytem linear matrix inequality(LMI) exponential stability

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Conformity evaluation of radiated immunity standards to modern telecommunication services using statistical techniques 17

Conformity evaluation of radiated immunity standards to mode...

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17th Biennial IEEE Conference on Electromagnetic Field Computation, IEEE CEFC 2016

作者： De São José, Artur N. Do Resende, Úrsula Ferreira, José H. De Oliveira, Lucas D. R. Menezes, Magno A. Mologni, Juliano F. Ribas, Jefferson C. Federal Center for Technological Education of Minas Gerais Electrical Engineering Graduate Program Belo Horizonte Brazil Pontifical Catholic University of Minas Gerais Electrical Engineering Graduate Program Belo Horizonte Brazil ESSS Electronic Design Automation Department São Paulo Brazil

ISBN: (纸本)9781509010325

Telecommunication services have faced significant improvements along the last decades, mainly related to new modulation techniques. Consequently, signals waveforms have gradually been modified. In this scenario, Electromagnetic Compatibility and, specially, Radiated Immunity tests became necessary to ensure the performance of electronic devices when exposed to such signals. Considering that the waveforms and modulations specified in Radiated Immunity standards are much simpler than those currently used in Telecommunication services, a statistical study about the impact of this difference is proposed for the 210-216 MHz frequency range. © 2016 IEEE.

关键词： Electromagnetic compatibility

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Improvement of reliable H control for discrete-time fuzzy systems with time-varying delays

Improvement of reliable H control for discrete-time fuzzy sy...

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2016 IEEE International Conference on Fuzzy Systems, FUZZ-IEEE 2016

作者： Wang, Shenquan Jiang, Yulian Li, Yuanchun Liu, Derong College of Electrical and Electronic Engineering Changchun University of Technology Changchun130012 China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing100190 China School of Automation and Electrical Engineering University of Science and Technology Beijing Beijing100083 China

ISBN: (纸本)9781509006250

This paper is concerned with the reliable H control problem for discrete-time Takagi-Sugeno (T-S) fuzzy systems with time-varying delays and stochastic actuator faults based on a novel summation inequality. A discrete-time homogeneous Markov chain is used to represent the stochastic behavior of actuator faults. By employing a fuzzy basis-dependent Lyapunov functional and the novel summation inequality, an improved sufficient condition is established to ensure that the resultant closedloop system is stochastically stable with an H performance index. Meanwhile, the solvability condition for the reliable H control is also established, by which the reliable H fuzzy controller can be solved from linear matrix inequalities. A numerical example is provided to demonstrate the effectiveness of the present approach. © 2016 IEEE.

关键词： Linear matrix inequalities

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Data acquisition system for turbojet engine using LabVIEW programming and PCI extensions for instrumentation 33

Data acquisition system for turbojet engine using LabVIEW pr...

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33rd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2017

作者： Ribeiro, David R. G. Ramos, Henrique K. M. Campo, Alexandre B. Sousa, João S. S. Alencar, Joel P. Department of Automation and Process Control Federal Institute of Education Science and Technology São Paulo Pedro Vicente Street 625 São Paulo01109-010 Brazil Department of Automation and Process Control Engineering Federal Institute of Education Science and Technology São Paulo Pedro Vicente Street 625 São Paulo01109-010 Brazil Department of Electrical Engineering Federal Institute of Education Science and Technology São Paulo Pedro Vicente Street 625 São Paulo01109-010 Brazil São José do Campos012223-201 Brazil Engine Subdivision and Test Cell Brazilian Air Force Aeronautical Material Park of São Paulo São Paulo Brás Leme Avenue 3258 São Paulo02022901 Brazil

ISBN: (数字)9781624105029

ISBN: (纸本)9781624105029

In a Brazilian Air Force test cell, units of J85-21C turbojet engine are subjected to acceptation tests through a system in which analog instruments are arranged on a bench for acquisition and evaluation of test data. Although this system meets the test specifications in terms of instrumentation, its analog aspect not only constrains the resources and capabilities available to test bench but also challenges the development of any extensions or modifications in the test setup. This paper describes the development and implementation of a data acquisition system using LabVIEW programming and the PCI Extensions for Instrumentation (PXI) platform to redefine the system characteristics. In it, desired requirements such as scalability, flexibility, reliability and determinism found in modern test cell instrumentation are applied, discussed and sustained covering hardware and software specifications, architectures and communications processes. In addition, the general aspects of software development that have resulted in a programming effort to obtain a in-house software application for the J85-21C engine test are discussed and demonstrated in the course of the paper. © 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Software design

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Output Feedback Disturbance Rejection for a Class of Linear Systems with Input Delay via DOBC Approach 35

Output Feedback Disturbance Rejection for a Class of Linear ...

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第35届中国控制会议

作者： WANG Chunyan YANG Jun ZUO Zongyu DING Zhengtao School of Electrical and Electronic Engineering University of Manchester School of Automation Southeast University Key Laboratory of Measurement and Control of CSE Ministry of Education The Seventh Research Division and Science and Technology on Aircraft Control Laboratory Beihang University

ISBN: (纸本)9789881563910

This paper addresses the disturbance rejection problem for a class of linear systems in the presence of input delay via DOBC approach. Truncated predictor feedback method is applied to deal with the input delay based on the estimate of state and external disturbance, and further endeavours are made to ensure the extra integral terms of the system state and external disturbance due to the input delay are properly considered using Krasovskii functionals. With the tool of Lyapunov functions,the stability of the closed-loop system is proved under sufficient conditions. A simulation study is given to validate the proposed control design.

关键词： Disturbance Observer Input Delay Truncated Prediction Output Feedback

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Preface

Advances in Intelligent Systems and Computing

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Advances in Intelligent Systems and Computing 2018年 620卷 v-vi页

作者： Omatu, Sigeru Rodríguez, Sara Villarrubia, Gabriel Faria, Pedro Sitek, Pawel Prieto, Javier Faculty of Engineering Department of Electronics Information and Communication Engineering Osaka Institute of Technology OsakaOsaka Japan Faculty of Science Department of Computer Science and Automation Control University of Salamanca Salamanca Spain GECAD – Research Group on Intelligent Engineering and Computing for Advanced Innovation and Development Instituto Superior de Engenharia do Porto Porto Portugal Faculty of Electrical Engineering and Computer Science Department of Control and Management Systems Department of Information Systems Kielce University of Technology Kielce Poland

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Neural Adaptive control of Microgrid Frequency Regulation with Wind Power

Neural Adaptive Control of Microgrid Frequency Regulation wi...

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Annual Conference of the IEEE Industrial Electronics Society

作者： Weiqiang Liu Chaoxu Mu Ding Wang Chao Luo Chao Ren Tianjin Key Laboratory of Process Measurement and Control Tianjin University Tianjin China School of Automation Southeast University Nanjing China The State Key Laboratory of Management and Control for Complex Systems Chinese Academy of Sciences Beijing China School of Electrical Engineering Wuhan University Wuhan China

Due to the uncertainty of power load demand and the stochastic power generation from renewable energy, frequency fluctuation becomes a major concern of power system, especially for a microgrid. In this paper, an improved proportional-integral (PI) controller based on the neural adaptive control method is proposed to deal with the load frequency control (LFC) problem in a microgrid with wind power. The designed neural adaptive control auxiliary controller is used to provide the adaptive supplement control signal to PI controller in a real-time manner. Simulation studies on a benchmark microgrid system are carried out between the proposed compound controller and traditional PI controller. The simulation results demonstrate the proposed method has a superior performance for stabilizing the frequency over the traditional PI control under disturbances from the load change and wind power.

关键词： Adaptive control Microgrids Frequency control Wind turbines Benchmark testing Power system stability

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Integral augmented nonlinear differentiator for noisy signals

Integral augmented nonlinear differentiator for noisy signal...

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Asian control Conference

作者： Zikang Su Honglun Wang Na Li Yue Yu Jianfa Wu SHENYUAN Honors College Beihang University Beijing China School of Automation Science and Electrical Engineering Science and Technology on Aircraft Control Laboratory Beihang University Beijing China Unmanned System Research Institute Beihang University Beijing China

ISBN: (纸本)9781509015740;9781509015733

This paper proposed an arctangent function based integral augmented nonlinear differentiator (IAND) for obtaining of the noise-less derivative signal from a noisy measurement signal. The basic idea of proposed IAND with high noise-attenuation effect is to establish the differentiator by expanding the signal dynamics with extra state variable representing the integrated noisy measurement, then with the integral of measurement as input, the IAND is formulated to achieve better noise suppression ability without appreciable delay. Moreover, the convergence characteristic and anti-noise property in the frequency domain are analyzed via singular perturbation theory and describing function method, respectively. The simulation comparison results with other differentiators show the superiority of IAND in noise suppression.

关键词： Noise measurement Pollution measurement Convergence Frequency-domain analysis Perturbation methods Estimation Acceleration

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Speed sensorless vector control oflnduction motor based on adaptive full-order flux observer 11

Speed sensorless vector control oflnduction motor based on a...

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11th IEEE Conference on Industrial Electronics and Applications, ICIEA 2016

作者： Shi, Lei Li, Guoli Xie, Fang Hang, Bing School of Electrical Engineering and Automation Anhui University Hefei China National Engineering Laboratory of Energy-Saving Motor and Control Technology Hefei China Collaborative Innovation Center of Industrial Energy-saving and Power Quality Control Anhui University Hefei China

ISBN: (纸本)9781509026050

In order to improve the flux aberration and running characteristics of induction motor at low speed region, this paper proposes a design of a new speed-adaptive flux observer based on a model reference self-adaptive system theory (MRAS). It collocated full-order flux observer poles by means of choosing a gain matrix. The observer uses the stator current and stator flux as state variables and combines flux observation with speed estimating by using the speed adaptive law. It was used in the speed sensorless vector control of induction motor. It is shown that the observer using the proposed speed-adaptation law can make sure that the system has better characteristic in the low speed and the effect of erroneous parameter estimations on the accuracy of the observer is comparatively small. Simulation results demonstrate the effectiveness of the adaptive full-order flux observer, and prove the robustness of the system to motor parameters variation. © 2016 IEEE.

关键词： Induction motors

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Distributed computation of linear matrix equations: An optimization perspective

arXiv

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arXiv 2017年

作者： Zeng, Xianlin Liang, Shu Hong, Yiguang Chen, Jie Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing100081 China Key Laboratory of Knowledge Automation for Industrial Processes of Ministry of Education School of Automation and Electrical Engineering University of Science and Technology Beijing Beijing100083 China Key Laboratory of Systems and Control Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China Ministry of Education Beijing100081 China

This paper investigates the distributed computation of the well-known linear matrix equation in the form of AXB = F, with the matrices A, B, X, and F of appropriate dimensions, over multiagent networks from an optimization perspective. In this paper, we consider the standard distributed matrix-information structures, where each agent of the considered multi-agent network has access to one of the sub-block matrices of A, B, and F. To be specific, we first propose different decomposition methods to reformulate the matrix equations in standard structures as distributed constrained optimization problems by introducing substitutional variables;we show that the solutions of the reformulated distributed optimization problems are equivalent to least squares solutions to original matrix equations;and we design distributed continuous-time algorithms for the constrained optimization problems, even by using augmented matrices and a derivative feedback technique. Moreover, we prove the exponential convergence of the algorithms to a least squares solution to the matrix equation for any initial condition. Copyright © 2017, The Authors. All rights reserved.

关键词： Continuous time systems

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