2011 IEEE International Symposium on Industrial Electronics最新文献

{"title":"Averaged model of the 31-level packed U cells converter","authors":"Y. Ounejjar, K. Al-haddad, A. Alolah","doi":"10.1109/ISIE.2011.5984436","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984436","url":null,"abstract":"In this paper, authors presents a novel competitive 31-level converter which makes use of small number of power switches and passive components. In case of DC/AC conversion, the proposed 31-level inverter allows a nearly sinusoidal output voltage resulting on a perfectly sinusoidal load current. In case of AC/DC conversion, it presents a reduced impact on the utility supply and a good energetic efficiency. An average model of the proposed converter is performed and a control strategy is designed in order to draw a nearly sinusoidal current and voltage. Active and passive filters can thus be avoided resulting on a highest energetic efficiency and a reduced installation cost. The proposed converter presents also the possibility and the simplicity of changing the number of voltage levels only by acting on-line on the ratios of the desired output voltages. The modeling and control strategy of the proposed 31-level converter were verified by simulation. The good performance of the control strategy during steady state and transient regimes is reported.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129505165","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":"A concept of induction squirrel cage generator application in ship electric network","authors":"M. Kozak, K. Zawirski","doi":"10.1109/ISIE.2011.5984073","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984073","url":null,"abstract":"In the paper a concept of generator for ship electric network based on squirrel cage machine driven by propeller shaft is proposed. Electric energy generated by a squirrel cage machine is double converted because of variable speed of propeller shaft. Problems of generator operation starting, initial excitation procedure for sensorless control system and parallel operation of two generators were analyzed. Results of simulation investigations were validated by experiment.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129875322","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":"Fault-tolerant control of a blade-pitch wind turbine with inverter-fed generator","authors":"V. Lešić, M. Vašak, N. Peric, T. Wolbank, G. Joksimović","doi":"10.1109/ISIE.2011.5984484","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984484","url":null,"abstract":"A fact is that wind energy is both green and expensive energy. In order to increase its economic competence, wind turbine faults should be reduced and prevented. In wind turbines faults most commonly occur in the gearbox and in the generator system components like power converter or generator electromechanical parts. This paper proposes a fault-tolerant control strategy for variable-speed variable-pitch wind turbines in case of identified and characterized generator electromechanical faults like broken rotor bar or winding inter-turn fault. In particular we propose an upgrade of the torque control loop with flux-angle-based torque modulation. Usage of pitch controller in the low wind speed region is also proposed to intentionally reduce power capture in order to avoid or to postpone the system fault development. Presented fault-tolerant control techniques are developed considering their easy implementation and installation in available control systems of existing wind turbines to extend their life cycle and energy production. Simulation results for the case of 700 kW direct-drive wind turbine and the identified stator winding fault are presented.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128391564","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":"FPGA based control of quasi resonant DC-link inverter and induction motor drive","authors":"J. Kedarisetti, P. Mutschler","doi":"10.1109/ISIE.2011.5984394","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984394","url":null,"abstract":"An indirect field oriented controlled induction machine is driven by quasi resonant DC-link soft switching inverter (QRDCLI). The total control of a soft switching inverter together with the motor has been realized in a single chip FPGA (Field Programmable Gate Array). It reduces the total hardware count and provides low cost solution. The control algorithm has decomposed into several blocks. All the blocks execute in parallel with individual sampling rates. For the soft switching inverter bridge control, the modified space vector PWM (SVPWM) technique is implemented in FPGA.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128405618","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":"Influence of the discretization method on the integration accuracy of observers with continuous feedback","authors":"M. Comanescu","doi":"10.1109/ISIE.2011.5984230","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984230","url":null,"abstract":"The paper discusses the problem of integrating the equations of state observers associated with direct field orientation (DFO) of motor drives and studies the influence of the discretization method used on the accuracy of integration. In a typical implementation, discrete-time integration is done using Euler's discretization method (forward rectangular rule) - the method is simple and integration is accurate when the drive operates at low and medium speed. However, as the frequency increases, the integration becomes inaccurate because the Euler approximation starts losing more and more area from under the curve. Theoretically, the problem could be alleviated by increasing the sampling frequency; however, this cannot always be done. Another idea would be to adopt a more accurate (but more computationally intensive) integration method, for example, trapezoidal integration (Tustin method). The paper shows that, at high frequency, under ideal conditions, trapezoidal integration performs better than the Euler method. In a real implementation, however, conditions are non-ideal since the measured signals bring dc offsets and imperfections into the terms to be integrated - as a result, pure integration must be replaced with quasi-low pass filtering. Under these conditions, the paper compares the Euler, Tustin and backward rectangular methods from the point of view of integration accuracy. The implications related to direct field orientation of motor drives are studied by considering a full-order observer for the PMSM - this is discretized using the three methods considered and the results are compared. At high frequency, neither integration method gives perfect results; the Euler method yields a waveform that leads the expected one while the backward rectangular method yield a waveforms that lags it. The paper finds that, surprisingly, when quasi-low pass filtering is used, the Tustin method is not significantly more accurate than the other ones - the waveform obtained lags the expected one by an angle comparable with the lead angle of the Euler method. It is shown that the integration accuracy depends on the frequency, sampling time, filter bandwidth and on the integration method used. Accurate high frequency drive DFO control would require correction of the magnitude/phase of the estimates.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129138150","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":"Low Power Wind Generation System based on variable speed permanent magnet synchronous generators","authors":"O. Carranza, E. Figueres, G. Garcerá, R. Ortega, D. Velasco","doi":"10.1109/ISIE.2011.5984307","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984307","url":null,"abstract":"This paper presents a Low Power Wind Generation System based on a permanent magnet synchronous generator and a High Power Factor rectifier. To achieve a high power factor in the generator side, it is proposed a power processing scheme that uses a passive rectifier and a DC-DC converter working in discontinuous conduction mode. This circuit is known as a boost rectifier. The proposed generator control structure is based on three cascaded control loops that regulate the generator current, the turbine speed and the amount of power that it is extracted from the wind, respectively, following the turbine aerodynamics and the actual wind speed. The analysis and design of both the current and the speed loop has been carried out, taking into consideration the electrical and mechanical characteristics, as well as the turbine aerodynamics, of the wind generation system. The power loop is not a linear one, but a Maximum Power Point Tracking algorithm, based on the Perturb and Observe technique, from which it is obtained the reference signal for the speed loop. Finally, to avoid the need of mechanical sensors, a linear Kalman Filter has been chosen to estimate the generator speed.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124629715","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":"Gain-scheduling-based droop control for universal operation of small wind turbine systems","authors":"A. Nagliero, R. Mastromauro, D. Ricchiuto, Marco Liserre, M. Nitti","doi":"10.1109/ISIE.2011.5984375","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984375","url":null,"abstract":"Universal operation of small-power wind turbine systems (grid-connected and island mode) may increase their penetration in the power systems. This paper proposes the use of gain scheduling to adapt the droop control gains to the different operation modes. It allows to achieve fast dynamic response in grid-connected mode and small voltage and frequency variations in island mode. An energy storage system contributes to ensure power balance between the wind turbine and the loads demand in island mode. The effectiveness of the proposed control method is verified by simulation and experimental results.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124696631","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":"Switching reconfiguration of a solar photavoltaic converter considering shadow conditions","authors":"A.O.R. Vilela, J. H. de Oliveira, G. A. G. Ribeiro, A. Brandao, H. Pereira","doi":"10.1109/ISIE.2011.5984205","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984205","url":null,"abstract":"The power curve of a photovoltaic module is affected by shadows. Some points such as the shaded area of the PV module and the PV array configuration can influence the system response. Power produced is often assumed to be linearly proportional to solar irradiance, but shadows can change this linearity. This paper proposes a reconfiguration of a pulse-width switching configuration for a boost converter installed in a photovoltaic array, while analyzing its performance in terms of voltage, current and power supply. This strategy resulted in practically on increase in cost of the photovoltaic module and is able to support partially shadowed conditions.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126805684","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":"Clustering methods for occupancy prediction in smart home control","authors":"Félix Iglesias Vázquez, W. Kastner","doi":"10.1109/ISIE.2011.5984350","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984350","url":null,"abstract":"Clustering methods are deployed to extract patterns from large amounts of data. For home and building automation, usage patterns and their resulting profiles allow improving control systems with prediction capabilities. This paper shows how different clustering methods identify patterns representing the occupancy of inhabitants. Regarding the occupancy, the clustering methods are tested with real data from three kinds of rooms taken from a database of buildings monitored for five years. Later on, they are analyzed and compared using a simulated environment for the automated control of a use case dedicated to heating setpoint temperature control. As will be shown, methods based on Fuzzy C-means and eXclusive Self-Organizing Maps obtain the best performance in simulations, presenting excellent features for the application of interest.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129116392","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":"Bayesian analysis of direct sequence spread spectrum unmanned aerial vehicle PPM control signal two-level detection","authors":"B. Todorović, V. Orlic","doi":"10.1109/ISIE.2011.5984258","DOIUrl":"https://doi.org/10.1109/ISIE.2011.5984258","url":null,"abstract":"Direct sequence spread spectrum (DS-SS) technique is widely used in modern telecommunications and it represents the latest advancement in radio control systems. In this paper we present an optimization of DS-SS scheme for unmanned aerial vehicle (UAV) pulse position modulation (PPM) control signal protection based on two-level detection. A novel framework for Bayesian detection while keeping false start probability below some specified value is developed. Numerical results are compared to those obtained by one-level detection.","PeriodicalId":162453,"journal":{"name":"2011 IEEE International Symposium on Industrial Electronics","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114353766","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}