IFAC Proceedings VolumesPub Date : 2014-01-01Epub Date: 2014-10-08DOI: 10.3182/20140824-6-ZA-1003.00508
Qingkai Yang, Fengyi Zhou, Jie Chen, Xin Li, Hao Fang
{"title":"Distributed Tracking for Multiple Lagrangian Systems Using Only Position Measurements.","authors":"Qingkai Yang, Fengyi Zhou, Jie Chen, Xin Li, Hao Fang","doi":"10.3182/20140824-6-ZA-1003.00508","DOIUrl":"10.3182/20140824-6-ZA-1003.00508","url":null,"abstract":"<div><p>This paper investigates the distributed tracking control problem for multiple Lagrangian systems under a general directed graph where only a portion of the agents have access to the desired time-varying trajectory. To overcome the problem that only positions are measured, a observer is designed to estimate the velocity for each follower. By employing the estimated states, the distributed observer-based controller is proposed using only position measurements. Furthermore, the condition for the distributed tracking problem on the directed graph is derived, such that the tracking errors and observer errors semi-globally converge to zero. Finally, simulation examples are provided to show the effectiveness of the proposed control algorithms.</p></div>","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"47 3","pages":"Pages 287-292"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3182/20140824-6-ZA-1003.00508","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77427869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IFAC Proceedings VolumesPub Date : 2014-01-01Epub Date: 2014-04-04DOI: 10.3182/20140313-3-IN-3024.00093
M.P. Rijesh , G. Sijo , N.K. Philip , P. Natarajan
{"title":"Geometrical Guidance Algorithm for Soft Landing on Lunar Surface","authors":"M.P. Rijesh , G. Sijo , N.K. Philip , P. Natarajan","doi":"10.3182/20140313-3-IN-3024.00093","DOIUrl":"10.3182/20140313-3-IN-3024.00093","url":null,"abstract":"<div><p>Augmented design of a guidance algorithm previously developed for intercepting target in a missile-target engagement scenario, but catering to powered descent soft landing on lunar surface is the main focus of this paper. When it comes to lunar soft landing guidance formulation, it is required that the Lander reach the desired position with terminal velocity constraints. An existing circular guidance law developed for missile guidance is modified to be applied for the fine braking phase of lunar powered descent. Presently in the algorithm, at the beginning of each guidance cycle, there will be an assumed varying circular path from missile to target and the guidance solution lies in finding the acceleration towards the centre of the circle so that the missile moves towards the target. The design augmentation proposed for lunar landing introduces a quadratic acceleration term opposite to the instantaneous tangential velocity vector to ensure terminal conditions. Coefficients of the quadratic acceleration profile are determined by the length of the circle as well as the magnitude of instantaneous tangential velocity. Finally a simple compensation scheme based on comparison of actual velocity from sensors and expected velocity from the algorithm is also proposed to take care of the variation in gravity and error in initial mass estimate.</p></div>","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"47 1","pages":"Pages 14-19"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3182/20140313-3-IN-3024.00093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89283145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IFAC Proceedings VolumesPub Date : 2014-01-01Epub Date: 2014-10-08DOI: 10.3182/20140824-6-ZA-1003.00961
Zhou Wu, Xiaohua Xia
{"title":"Energy Efficiency of Overhead Cranes","authors":"Zhou Wu, Xiaohua Xia","doi":"10.3182/20140824-6-ZA-1003.00961","DOIUrl":"10.3182/20140824-6-ZA-1003.00961","url":null,"abstract":"<div><p>Energy efficiency is firstly considered into the control of overhead cranes. Based on the model of crane system, energy consumption as well as operational safety is formulated in an optimal control problem. The optimal control is used to search optimal trajectories of velocity and acceleration for minimizing energy consumption. Existing related work mainly focused on reducing transportation time and swing, but trajectory in this paper focuses on increasing energy efficiency of transportation while satisfying practical and physical constraints. Model predictive control (MPC) is then proposed to track optimal trajectories in real-time. As a result, the actual trajectories can match the reference trajectories with small errors when external disturbances exist. In the simulation, it can be shown that the proposed control approach can improve energy efficiency of overhead cranes robustly.</p></div>","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"47 3","pages":"Pages 19-24"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3182/20140824-6-ZA-1003.00961","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87217602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal Production Planning for the Virgin Olive Oil Elaboration Process","authors":"P. C. Marchal, D. Gila, J. G. García, J. Ortega","doi":"10.3182/20140824-6-ZA-1003.02203","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.02203","url":null,"abstract":"Abstract The quality and obtained quantity of Virgin Olive Oil is bounded by the characteristics of the olives to be processed, and further determined by the influence of the process variables during the actual elaboration. Since the quality of the olives evolves during the harvesting season, it is relevant to consider when to harvest the olives in order to maximize the profit over the whole season. This work proposes a method to determine an optimal production plan for the whole harvesting season and presents the results obtained in its application to four different scenarios.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"36 1","pages":"8921-8926"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73663488","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}
C. Combastel, Rihab El Houda Thabet, T. Raïssi, A. Zolghadri, David Gucik
{"title":"Set-Membership Fault Detection under Noisy Environment in Aircraft Control Surface Servo-Loops","authors":"C. Combastel, Rihab El Houda Thabet, T. Raïssi, A. Zolghadri, David Gucik","doi":"10.3182/20140824-6-ZA-1003.01906","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.01906","url":null,"abstract":"Abstract Based on a consistent interface between a data-driven and a model-driven approach within an interval framework, the paper deals with the detection of two important electrical flight control system failure cases of aircraft control surfaces, namely runaway and jamming. Robust and early detection of such abnormal positions is an important issue for early system reconfiguration and for achieving sustainability goals. The motivation behind this work is the development of an original set-membership methodology for fault detection where a data-driven characterization of random noise variability (which is not usual in a bounded error context) is combined with a model-driven approach based on interval prediction in order to improve the accuracy of the overall detection scheme. The efficiency of the proposed methodology is illustrated through simulation results using data sets recorded on a highly representative aircraft benchmark.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"154 1","pages":"8265-8271"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73724270","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}
{"title":"Engineering Management in Kosovo","authors":"E. Hajrizi, P. Kopacek","doi":"10.3182/20140824-6-ZA-1003.01241","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.01241","url":null,"abstract":"Abstract International development is critical if we are to stabilise previously unstable regions. The development of new, sustainable education systems in such regions is well known to be an important driver for international development generally, attracting considerable body of literature as well as numerous donor initiatives. Developing economies in the midst of fundamental restructuring of higher education may benefit from radical approaches to engineering education programme design. This paper sets out the case of the development of an Engineering Management MSc program in Kosovo. It demonstrates that it is possible to develop higher-education programmes in advanced engineering, which have potential local economic impact in an emerging economy and are designed with that goal specifically in mind. The case demonstrates how it is possible to apply theories of engineering and technology professional competence to develop higher education programmes with the potential to deliver on aggressive economic and educational objectives probably as a model for frugal countries. As an example a cooperation project between the University for Business and Technology (UBT) in Prishtina, Kosovo and Vienna University of Technology will be presented and discussed.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"54 1","pages":"9875-9879"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73848114","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}
{"title":"Linear Matrix Inequality-based Robust Controller design for Type-1 Diabetes Model","authors":"P. Szalay, G. Eigner, L. Kovács","doi":"10.3182/20140824-6-ZA-1003.02451","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.02451","url":null,"abstract":"Abstract This paper investigates the capabilities of a sophisticated robust nonlinear controller designed directly for a widely known and used high-order nonlinear type 1 diabetes (T1DM) model to lessen the dependency from patient compliance and to answer practical requirements such as avoiding hypoglycaemia. The resulting controller can perform adequately in nominal conditions, but expected to keep this performance even in extreme situations, e.g. high carbohydrate intake, rejecting hypoglycaemic episodes.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"47 1","pages":"9247-9252"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75158140","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}
Alexander Sievert, W. Drewelow, T. Jeinsch, O. Simanski
{"title":"Modeling And Control Of An Extracorporeal Heart Assist Device","authors":"Alexander Sievert, W. Drewelow, T. Jeinsch, O. Simanski","doi":"10.3182/20140824-6-ZA-1003.01709","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.01709","url":null,"abstract":"Abstract Heart assist devices provide mechanical circulatory support for patients with end-stage heart failure. Extracorporeal heart assist devices are applied to adult and pediatric patients in the case of uni- and biventricular assistance. Modern driving units provide more mobility what is an immense benefit to the quality of life of the patients. The treated heart assist device in this article is the EXCOR system (Berlin Heart GmbH, Germany). This device is pneumatically operated by a piston drive. Pump assistance for the native heart of the patient should be provided by an automatic control system. This could be achieved by the control of the piston movement and the enclosed air mass in the pneumatic system. The model based design of a control system for the extracorporeal assist device is described in this paper.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"17 1","pages":"6581-6586"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75232811","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}
{"title":"Hierarchical Network Identification of Large-Scale Systems - An Approach Based on Dissipation Equalities","authors":"C. Kojima","doi":"10.3182/20140824-6-ZA-1003.01102","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.01102","url":null,"abstract":"Abstract Recently, dynamical systems in science and engineering problems become increasingly larger and too complex. One of the ways to solve the difficulty is to model the systems with a hierarchically networked interconnection of subsystems. In this paper, we consider a hierarchical network system which is an interconnection of dissipative subsystems and identify both subsystems and network structure, called network system, preserving the dissipativity properties. We first estimate the state sequences of subsystems via the dissipation equalities instead of the matrix input-output equation in ordinary subspace identification methods. As a main result, we show an identification method in open-loop manner for subsystems and network systems based on the least-squares method. We also propose an identification method in a closed-loop manner.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"7 1","pages":"5538-5543"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75623811","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}
{"title":"Adaptive stabilization of stochastic nonholonomic systems with uncertain parameters and time-varying coefficients","authors":"Chaoli Wang, G. Wei, Hengjun Zhang, Dongkai Zhang, Zi-Peng Wang, Hua Chen","doi":"10.3182/20140824-6-ZA-1003.01357","DOIUrl":"https://doi.org/10.3182/20140824-6-ZA-1003.01357","url":null,"abstract":"Abstract This paper investigates the adaptive state-feedback stabilization of stochastic nonholonomic systems which have both uncertain parameters and time-varying coefficients. The state-scaling and backstepping techniques are exploited in the design of controllers. The adaptive state-feedback stabilizing controllers and switching control strategy are proposed so that the closed-loop system can be stabilized in probability. In the end, two simulation examples are provided to illustrate effectiveness of controllers.","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"145 1","pages":"5734-5739"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75658044","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}