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2020 IEEE Conference on Control Technology and Applications (CCTA)最新文献

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An Experience Replay Based Adaptive Disturbance Observer for a Class of Nonlinear Systems 一类非线性系统基于经验回放的自适应扰动观测器
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206359
Zhitao Li, Jinsheng Sun, H. Modares
{"title":"An Experience Replay Based Adaptive Disturbance Observer for a Class of Nonlinear Systems","authors":"Zhitao Li, Jinsheng Sun, H. Modares","doi":"10.1109/CCTA41146.2020.9206359","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206359","url":null,"abstract":"This paper designs an adaptive disturbance observer for a class of nonlinear systems with unknown disturbances where the disturbance is assumed to be generated by some unknown dynamics. we first use a filtered regressor approach to model the nonlinear systems and the disturbance. We show that this filtered regressor form allows us to estimate the disturbance using only measured state. Next, to improve convergence speed we propose a new adaptive observer with experience replay to ensure that disturbance estimate error is globally exponentially stable. Experience replay uses past measured data to not only assure that the observer estimation error converges to zero with a rate depends on the Minimum eigenvalue of the history stack matrix. Compared to the existing results, we neither use the knowledge of the disturbance dynamics nor the state derivatives in our adaptive protocol. Finally, we use a simulation example to illustrate the effectiveness of our results.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115488780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Extended Nonlinear Dynamical Modeling and State Estimation for the Temperature Control of Loop Heat Pipes 循环热管温度控制的扩展非线性动力学建模与状态估计
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206366
Thomas Gellrich, Jonas Moeller, S. Schwab, S. Hohmann
{"title":"Extended Nonlinear Dynamical Modeling and State Estimation for the Temperature Control of Loop Heat Pipes","authors":"Thomas Gellrich, Jonas Moeller, S. Schwab, S. Hohmann","doi":"10.1109/CCTA41146.2020.9206366","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206366","url":null,"abstract":"For the thermal control of aerospace systems, loop heat pipes (LHPs) are often utilized as passive, two-phase heat transport systems. Their high heat transfer coefficient is reached through evaporation and condensation of a working fluid, whose mass flow in the loop is established by capillary forces in a porous wick. However, the LHP operating temperature depends on the dissipated heat of the heat sources and the temperature of the heat sink. Thus, a heater on the compensation chamber of the LHP enables the temperature control under varying operating conditions. To realize the designed state-dependent nonlinear controller on actual LHPs, a nonlinear dynamical state estimation based on the square-root unscented Kalman filter (SR-UKF) is designed in this paper. This filter provides the controller with the required LHP states. Furthermore, the underlying nonlinear LHP state-space model with two temperature measurement is extended to four temperature measurements by modeling the overheated vapor in the LHP. It is shown in a numerical LHP simulation that the extended LHP state-space model improves the control performance achieving a higher robustness against the varying operating conditions.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"57 30","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113933407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Load Balance Optimization Approach for the GMT Primary Mirror Support Actuator System GMT主镜支撑作动器系统负载平衡优化方法
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206351
R. Romano, R. Conan, T. Ranka
{"title":"A Load Balance Optimization Approach for the GMT Primary Mirror Support Actuator System","authors":"R. Romano, R. Conan, T. Ranka","doi":"10.1109/CCTA41146.2020.9206351","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206351","url":null,"abstract":"The Giant Magellan Telescope (GMT) primary mirror active support system incorporates pneumatic force actuators to hold the mirror and to control its surface. This paper describes an optimization approach to transform the required control demand into the primary mirror support forces. Based on a quadratic cost function, the method performs a trade-off between the optical surface deflection and a weighted norm of the support forces. An iterative algorithm is proposed to handle actuator operational limits, without resorting to the more sophisticated techniques, such as quadratic programming methods. Such iterative procedure redistributes the control demand over the available degrees of freedom and can handle straightforwardly known actuator failures. Simulation results based on finite-element analysis data indicate relevant improvements in the gravity print-through achieved with the force balance algorithm used so far, using comparable actuators force magnitudes.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124351131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fractional Order PID Control with Rate-limited Anti-windup for the Pitch System of Wind Turbines 风力发电机俯仰系统限速抗绕组的分数阶PID控制
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206341
Xin Wang, A. Gambier, B. Vinagre
{"title":"Fractional Order PID Control with Rate-limited Anti-windup for the Pitch System of Wind Turbines","authors":"Xin Wang, A. Gambier, B. Vinagre","doi":"10.1109/CCTA41146.2020.9206341","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206341","url":null,"abstract":"This contribution analyses the performance of a fractional order PID (FOPID) controller with an anti-windup strategy for magnitude and rate applied to the pitch control of a wind turbine. Due to the fact that the operating point of wind turbines changes with the wind speed and that the plant is nonlinear, the controller includes a gain scheduling procedure to adjust the controller parameters. In order to avoid undesired oscillations on the tower due to the pitching activity, an active tower damping control is coupled with the pitch control. A 20 MW reference wind turbine is used as virtual plant, which is implemented in the simulation software FAST. Simulation results show that the control system based on the FOPID approach contributes to an improvement in the control performance of the wind turbine.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"8 23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116407956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Wind-Farm Layout Optimization based on Uncertain Set of Yearly Wind Distributions 基于年风分布不确定集的风电场布局优化
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206258
Ying Wen, Mengxuan Song, Jun Wang
{"title":"Wind-Farm Layout Optimization based on Uncertain Set of Yearly Wind Distributions","authors":"Ying Wen, Mengxuan Song, Jun Wang","doi":"10.1109/CCTA41146.2020.9206258","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206258","url":null,"abstract":"This paper proposes a robust layout optimization method for maximizing the annual energy production of a wind farm under uncertain wind conditions. A novel method for describing the uncertainty set of wind distribution is proposed based on the variability of yearly wind distributions. Future wind conditions are assumed to vary within the uncertainty set. The lowest possible annual energy production in the future is set as the objective function. The optimization problem is solved by linear programming and genetic algorithms. The uncertainty and variability of energy production is reduced with the robust optimal layout and loss of energy production as the cost of robustness is compensated by the proper construction of uncertainty set. The proposed optimization method is compared with different optimization strategies. The simulation results demonstrate that the proposed optimization method can achieve a trade-off between limiting the influence of uncertain wind and maximizing overall energy production.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123368940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal Constrained Retreat within the Turret Defense Differential Game 炮塔防御微分博弈中的最优约束撤退
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206388
Alexander Von Moll, Zachariah E. Fuchs
{"title":"Optimal Constrained Retreat within the Turret Defense Differential Game","authors":"Alexander Von Moll, Zachariah E. Fuchs","doi":"10.1109/CCTA41146.2020.9206388","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206388","url":null,"abstract":"We extend the Turret Defense Differential Game by considering the possibility for the mobile Attacker to retreat to a particular region of the state space in lieu of engaging the Turret. In this case, the Turret cooperates with the Attacker by escorting the Attacker to the retreat surface, thereby minimizing its cost. Along the retreat trajectory, the cost associated with the Value of the Game of Engagement must be greater than the cost associated with retreating. We refer to this scenario as Optimal Constrained Retreat, wherein the aforementioned requirement is imposed as a path constraint. The optimality conditions are developed herein. We specify a boundary value problem with fixed initial state and compute the optimal trajectory numerically via backwards shooting. The corresponding trajectory contains a constrained arc wherein the path constraint associated with the Game of Engagement becomes active.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122537730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Stage Selection for Machine Combination Optimization in Multi-Process Production System 多工序生产系统中机器组合优化的阶段选择
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206248
Shungo Ikai, M. Kano, Takeshi Yanagimachi, Masaya Takaki
{"title":"Stage Selection for Machine Combination Optimization in Multi-Process Production System","authors":"Shungo Ikai, M. Kano, Takeshi Yanagimachi, Masaya Takaki","doi":"10.1109/CCTA41146.2020.9206248","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206248","url":null,"abstract":"In a multi-process production system, the yield rate of the final products depends not only on the performance of each machine but also on the combination of machines at different stages. In the previous study, it was demonstrated that field-aware factorization machines (FFM) can estimate the yield rates achieved by unused machine combinations and identify important machine pairs with high accuracy. However, when the number of stages is large and the data of used machine combinations is not enough, the prediction accuracy will be low. Hence, we proposed important stage selection methods. Through two numerical examples, we confirmed that RMSE between the actual and predicted values of yield rates decreased by up to 66 % in comparison with a model using all stages.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125837429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of an Integrated Observer Structure for Robust Fault Detection 鲁棒故障检测的集成观测器结构设计
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206387
B. Shafai, Anahita Moradmand
{"title":"Design of an Integrated Observer Structure for Robust Fault Detection","authors":"B. Shafai, Anahita Moradmand","doi":"10.1109/CCTA41146.2020.9206387","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206387","url":null,"abstract":"An integrated observer structure consisting of an unknown input observer and proportional integral observer with an additional fading term for robust fault detection is presented. First, a brief overview of each observer is outlined with the associated advantages. The design equations of each observer is required for the design of combined observer structure termed as PIFUIO. It is shown that the fading term of this observer plays a key role in reliable estimation of faults decoupled from the unknown disturbance or vice versa. The robust detection of sensor fault is also considered with the presence of unknown inputs. A numerical example is provided to illustrate the advantage of PIFUIO.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128737178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Estimation of the Domain of Attraction for Uncertain Nonlinear Autonomous Systems via rational Lyapunov functions: A Bezoutian Approach 用有理Lyapunov函数估计不确定非线性自治系统的吸引域:一种Bezoutian方法
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206339
Thomas Pursche, R. Clauss, B. Tibken
{"title":"Estimation of the Domain of Attraction for Uncertain Nonlinear Autonomous Systems via rational Lyapunov functions: A Bezoutian Approach","authors":"Thomas Pursche, R. Clauss, B. Tibken","doi":"10.1109/CCTA41146.2020.9206339","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206339","url":null,"abstract":"In todays modern control engineering and system theory, the investigation of stability for arbitrary nonlinear systems is one of the central topics. Numerous different methods established in recent years, but most of them are limited to a small set of possible functions. The main purpose of this contribution is, to present a method for the approximation of the robust domain of attraction (RDA) for uncertain polynomial systems using rational instead of common quadratic Lyapunov functions (LF). We consider a polynomial system where the uncertainty is given by a polynomial mapping of an interval into the uncertainties. We use a bezoutian algorithmic approach for the estimation of the RDA. This algorithm successfully provides us with an enclosure of the RDA. The effectiveness of the technique is illustrated by some examples.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116660246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gain Margins in a Class of Nonlinear Systems: Lyapunov approach 一类非线性系统的增益边界:Lyapunov方法
2020 IEEE Conference on Control Technology and Applications (CCTA) Pub Date : 2020-08-01 DOI: 10.1109/CCTA41146.2020.9206380
S. S. Das, Y. Shtessel, F. Plestan, Shamila Nateghi, R. Rajesh
{"title":"Gain Margins in a Class of Nonlinear Systems: Lyapunov approach","authors":"S. S. Das, Y. Shtessel, F. Plestan, Shamila Nateghi, R. Rajesh","doi":"10.1109/CCTA41146.2020.9206380","DOIUrl":"https://doi.org/10.1109/CCTA41146.2020.9206380","url":null,"abstract":"In this paper, a novel concept of Gain Margin is defined and studied for a class of Nonlinear Systems specifically the Lur'e type. The corresponding algorithms for computing practical Gain Margins in such systems, based on Lyapunov's Second Method and Linear Matrix Inequalities, are introduced. The efficacy of the proposed algorithms is illustrated in tutorial examples.","PeriodicalId":241335,"journal":{"name":"2020 IEEE Conference on Control Technology and Applications (CCTA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117101811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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