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第36届中国控制会议

作者： Jian Wang Huimin Miao System Engineering Institute School of AutomationHuazhong University of Science and Technology Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology Hubei Province Key Laboratory of Systems Science in Metallurgical Process Wuhan University of Science and Technology

ISBN: (纸本)9781538629185

Nowadays,many researches study the negotiation-based order allocation problem in the supply chain environment,aiming to improve the efficiency of the allocation and the profits of the supply chain *** competition and cooperation in supplier’s side are mainly addressed because of independent *** this paper,we analyze an interdependent order allocation problem in a two-echelon supply *** supply chain consists of a manufacturer echelon and a supplier *** to the interdependence,both the competition and cooperation in the manufacturer echelon are *** agent-based negotiation algorithm is developed to support the order allocation process and the conflicts *** show in experiments that orders under various supply chain contexts can be successfully allocated through the algorithm.

关键词： Supply chain system order allocation agent-based negotiation

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Lyapunov Equation Based Stability Mapping Approach: A MIMO Case Study

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IFAC-PapersOnLine 2016年第9期49卷 130-135页

作者： Mutlu, Ilhan Schrödel, Frank Bajcinca, Naim Abel, Dirk Söylemez, M. Turan Control and Automation Engineering Department Istanbul Technical University Istanbul Turkey Institute of Automatic Control RWTH Aachen University Aachen52074 Germany Department of Mechanical and Process Engineering Technical University of Kaiserslautern Kaiserslautern Germany

In this study, a Lyapunov Equation based stability mapping approach is proposed for MIMO systems in order to determine stability regions. Since the proposed approach is independent of the controller type and the number of the control variables, it is also applicable for SISO systems. In standard Lyapunov Equation approach, the designer should solve 2n equations to calculate the stabilizing parameter sets. However, it is necessary and sufficient to solve at most two equations in order to determine the stability boundaries in the proposed approach. Moreover, frequency sweeping that is required in most of the frequency domain based approaches is omitted in this approach since the stability problem is defined in the time domain. Several case studies are discussed within the scope of this study to verify the effectiveness of the derived theoretical results. © 2016

关键词： Lyapunov functions Convergence of numerical methods Frequency domain analysis Lyapunov methods Mapping MIMO systems Time domain analysis control variable Frequency domains Frequency sweeping Lyapunov equation Stability analysis Stability boundaries Stability problem Stability regions

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A novel tube-based output feedback MPC for constrained linear systems

A novel tube-based output feedback MPC for constrained linea...

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American control Conference

作者： Sankaranarayanan Subramanian Sergio Lucia Sebastian Engell Process Dynamics and Operations Group TU Dortmund Germany Otto-von-Guericke-University Magdeburg Laboratory for Systems Theory and Automatic Control Institute of Automation Engineering Germany

ISBN: (纸本)9781509045839

Model Predictive control (MPC) is an advanced strategy for the control of multi-variable and constrained dynamical systems. Tube-based MPC is a robust control technique that handles uncertainties present in the model. Since full state information is seldom available in practical systems, the estimation error must also be taken into account in addition to model uncertainties to achieve closed-loop stability and constraint satisfaction despite estimation and model errors. In this paper, we propose a novel strategy for the design of a tube-based output feedback MPC which is independent of the estimation method employed. We formulate a control policy by choosing a candidate estimate that is consistent with the reachable sets of the system under control. The proposed method can be combined with any estimation scheme as long as the assumed error bounds are satisfied. We show that the proposed method is recursively feasible, robustly exponentially stable, and performs better than other available strategies.

关键词： Maximum Allowable Concentration Linear system control strategy Output feedback constraint satisfaction problems model error control technology model uncertainty Statistical analysis

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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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Dead-Time Compensator for Multi Time-delay Systems:the Scalar Case

Dead-Time Compensator for Multi Time-delay Systems:the Scala...

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第36届中国控制会议

作者： Pedro Albertos Pedro García Qiang Chen Xiaoli Luan Fei Liu Department of Systems Engineering and Control Instituto de Automática e Informática Industrial Universitat Politècnica de València Key Laboratory of Advance Process Control for Light Industries Institute of Automation Jiangnan University

This paper deals with the control of simple process models where multiple time-delays appear. These delays can be input, output or state delays. For the case of input/output time-delays, a general solution is retrieved from the *** state time-delays, the scalar case is considered and a precompensator is used to cancel the delay. The proposed algorithms are applied to the control of a simple academic example.

关键词： Input/output time-delays State time-delays Unstable delayed systems

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Blade Shape Optimization of Liquid Turbine Flow Sensor

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Transactions of Tianjin University 2016年第2期22卷 144-150页

作者：郭素娜张涛孙立军杨振杨文量 School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China Tianjin Key Laboratory of Process Measurement and Control Tianjin 300072 China North China Municipal Engineering Design & Research Institute Tianjin 300384 China

Based on the characteristic curve analysis, the method using D(K^2) square difference of meter factor at different flow rates was developed to evaluate the performance of turbine flow sensor in this study. Then according to the distribution of entrance velocity, it was supposed that reducing the blade area near the tip could decrease the linearity error of a sensor. Therefore, the influence of different blade shape parameters on the performance of the sensor was investigated by combining computational fluid dynamics(CFD)simulation with experimental test. The experimental results showed that, for the liquid turbine flow sensor with a diameter of 10 mm, the linearity error was smallest, and the performance of sensor was optimal when blade shape parameter equaled 0.25.

关键词： turbine flow sensor performance evaluation method parameter optimization mathematical model CFD simulation

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Comparative Study of Multicomponent Distillation Static Estimators Based on Industrial and Rigorous Model Datasets

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IFAC-PapersOnLine 2016年第7期49卷 1187-1192页

作者： Torgashov, Andrei Skogestad, Sigurd Kozlov, Alexey Institute of Automation and Control Process FEB RAS 5 Radio Str. Vladivostok Russia Russky IslandVladivostok Russia Department of Chemical Engineering Norwegian University of Science and Technology TrondheimNO-7491 Norway Gazpromneft-Omsk Refinery JSC 1 Pr. Gubkina Omsk644040 Russia

The comparative study of static estimators (soft sensors) for a multicomponent distillation process based on the industrial and calibrated rigorous model datasets is considered. The sequence of distillation columns of an FFC unit is analyzed as an industrial case study. The contribution of the paper is to develop a method aimed at incorporating a priori knowledge about process in terms of rigorous models for static estimator design when the training sample is small and contains measurement errors. The superiority of a constrained optimization approach for SE design over conventional robust M -estimator is reported. The system of constraints is derived from a calibrated rigorous model of an industrial plant. © 2016

关键词： Distillation columns Constrained optimization Distillation Industrial plants Comparative studies estimators Industrial case study Multicomponent distillations Priori knowledge process model Soft sensing Training sample

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LQ control of Lotka-Volterra Systems Based on their Locally Linearized Dynamics

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IFAC-PapersOnLine 2016年第10期49卷 241-245页

作者： Lipták, Görgy Magyar, Attila Hangos, Katalin M. University of Pannonia Faculty of Information Technology Department of Electrical Engineering and Information Systems H-8200 Egyetem street 10 Veszprém Hungary HAS Computers and Automation Research Institute Process Control Research Group H-1111 Kende street 13-17 Budapest Hungary

This work applies the LQ control framework to the class of quasi-polynomial and Lotka-Volterra systems through the linearized version of their nonlinear system model. The primary aim is to globally stabilize the original system with a suboptimal LQ state feedback by means of a well-known entropy-like Lyapunov function that is related to the diagonal stability of linear systems. This aim can only be reached in the case when the quasi-monomial composition matrix is invertible. In the rank-deficient case only the local stabilization of the system is possible with an LQ controller that is designed using the locally linearized model of the closed-loop system model. © 2016

关键词： System stability Biological systems Closed loop systems Linear matrix inequalities Linear systems Linearization Lyapunov functions Nonlinear systems State feedback Closed loop system modeling Composition matrixes Linearized dynamics Local stabilizations Lotka Volterra systems LQ control Lyapunov stability Nonlinear system modeling

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Sliding mode tracking control for miniature unmanned helicopters

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Chinese Journal of Aeronautics 2015年第1期28卷 277-284页

作者： Xian Bin Guo Jianchuan Zhang Yao Zhao Bo The Institute of Robotics and Autonomous System Tianjin Key Laboratory of Process Measurement and ControlSchool of Electrical Engineering and Automation Tianjin University

A sliding mode control design for a miniature unmanned helicopter is presented. The control objective is to let the helicopter track some predefined velocity and yaw trajectories. A new sliding mode control design method is developed based on a linearized dynamic model. In order to facilitate the control design, the helicopter＇s dynamic model is divided into two subsystems,such as the longitudinal-lateral and the heading-heave subsystem. The proposed controller employs sliding mode control technique to compensate for the immeasurable flapping angles＇ dynamic effects and external disturbances. The global asymptotic stability（GAS） of the closed-loop system is proved by the Lyapunov based stability analysis. Numerical simulations demonstrate that the proposed controller can achieve superior tracking performance compared with the proportionalintegral-derivative（PID） and linear-quadratic regulator（LQR） cascaded controller in the presence of wind gust disturbances.

关键词： unmanned sliding miniature compensate quadratic cascaded subsystem disturbance facilitate linearized

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Colored petri net based diagnosis of process systems 30

Colored petri net based diagnosis of process systems

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30th European Simulation and Modelling Conference, ESM 2016

作者： Pózna, Anna I. Gerzson, Miklós Leitold, Adrien Hangos, Katalin M. Department of Electrical Engineering and Information Systems Hungary Deparment of Mathematics University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Process Control Research Group Computer and Automation Research Institute P.O.B. 63 BudapestH-1518 Hungary

ISBN: (纸本)9789077381953

An improved diagnosis method of technological systems is proposed in this paper that is based on their qualitative colored Petri-net model (Leitold et al. 2014). The proposed diagnosis method can be used when more than one fault occur in the system and if the fault evolves during the operation of the system. In order to make the diagnosis of complex process systems computationally feasible, a structural decomposition method is introduced to reduce the size of their occurrence graphs and to make the diagnosis easier. The proposed methods are illustrated on examples.

关键词： Fault detection

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