{"title":"A control strategy for optimum efficiency operation of high performance interior permanent magnet motor drives","authors":"O. Ojo, F. Osaloni, Z. Wu, M. Omoigui","doi":"10.1109/IAS.2003.1257563","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257563","url":null,"abstract":"This paper, using the concept of input-output linearization with decoupling, sets forth the speed control of the interior permanent magnet motor drives which simultaneously ensures the minimization of the losses-the copper and core losses. This control scheme is unique in that saturation dependent parameters such as the d and q axis inductances and the armature reaction dependent magnet flux linkage are included in the controller structure formulation and implementation. The proposed control scheme differs from known schemes which are either based on perturbation and search methods or on steady curve fitted graphs that map the command q and d axis currents based on reference torque. Unlike these methods, an optimization formulation that dynamically determines the reference currents/voltages required to achieve high performance speed control and total loss minimization is used. The control structure methodology, the nature of the variations of the machine parameters and how they influence the machine efficiency are clearly laid out.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117012149","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":"Common-mode voltage reduction PWM technique for wide speed range control of induction motor drives fed by inverter with diode front end","authors":"Y. Lai, Po-Sheng Chen, Hsiang-Kuo Lee, J. Chou","doi":"10.1109/IAS.2003.1257535","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257535","url":null,"abstract":"The main theme of this paper is to demonstrate the applications of the newly developed common-mode voltage reduction PWM technique, which restricts the common-mode voltage to one third of DC-link voltage, to vector-controlled induction motor drives. As compared to previous common-mode voltage reduction techniques, either only for inverter with PWM-controlled front end or resulting in the reduction of linear modulation range, the presented technique can be applied to the inverter with diode front end and has no adverse effect on the linear modulation range. Therefore, the vector-controlled drives using the developed technique for inverter control are with wide speed range. Moreover, the effects of the common-mode voltage reduction PWM technique on speed response for vector-controlled induction motor drives is fully investigated in this paper. It is demonstrated by intensive experimental results that speed performance is not deteriorated significantly within the rated speed range.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116734393","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":"LightMOS a new power semiconductor concept dedicated for lamp ballast application","authors":"E. Griebl, L. Lorenz, M. Purschel","doi":"10.1109/IAS.2003.1257610","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257610","url":null,"abstract":"With the monolithic integration of a body diode into an IGBT structure, a very cost attractive solution for the lamp ballast application is introduced. Using the trench stop technology for lowest tail currents, switching losses and the overall power losses of the device are in the range of the latest MOSFET technologies using the compensation principle for lowest on state resistances.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114814785","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 model following control of switching regulators","authors":"M. Elmore, V. Skormin","doi":"10.1109/IAS.2003.1257792","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257792","url":null,"abstract":"Parametric uncertainty in switching power supplies (SPS) and their loads can result in unstable operation or failure to meet performance specifications. Adaptive model following control (AMFC) is proposed to assure robust operation of SPS. This control approach results in stable operation and desired transient response of switching converters, while mitigating the effects of parameter uncertainty and drift. An adaptation mechanism is designed utilizing the hyperstability and positivity principles. AMFC of buck, boost and buck-boost converters operating in the continuous mode is considered: an analog hardware implementation of AMFC of a buck converter is demonstrated and compared to simulation results. The laboratory data validates the simulation model. The data demonstrates that AMFC results in stable operation with nearly invariant open-loop frequency response with more than a 2:1 variation in power converter component values. It is shown that with AMFC audiosusceptibility is unchanged, whereas, output impedance is lowered, compared to conventional voltage mode control.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128135469","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}
W. Brumsickle, D. Divan, G. Luckjiff, J. Freeborg, R. L. Hayes
{"title":"Operational experience with a nationwide power quality and reliability monitoring system","authors":"W. Brumsickle, D. Divan, G. Luckjiff, J. Freeborg, R. L. Hayes","doi":"10.1109/IAS.2003.1257679","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257679","url":null,"abstract":"An end-to-end web-based electric power quality and reliability monitoring system has been operating since mid-2002. Today, more than 700 monitor nodes are placed in 46 states across the nation and more than 90000 PQ events have been captured. Exceptionally low cost monitors are key to affording broad deployment by corporations, utilities, and single customers. Large industrial users benefit from the event notification, data reporting and statistical summary capabilities to understand the impact of power quality on their operations at multiple facilities and to specify optimal solutions to mitigate these problems. Case studies from the first year of system operation are discussed, which demonstrate the potential for realizing a nationwide power quality and reliability monitoring system.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126706593","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 new stable MRAS-based speed and stator resistance estimators for sensorless vector control induction motor drive at low speeds","authors":"M. Rashed, F. Stronach, P. Vas","doi":"10.1109/IAS.2003.1257700","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257700","url":null,"abstract":"MRAS-based sensorless vector control induction motor schemes discussed in the literature suffer from pure integration problems, instability problems and sensitivity to stator resistance mismatch at low speed operation. In this paper, novel stable MRAS speed and stator resistance estimators based on current estimation have been proposed and designed. These estimators have been designed to be stable in the various operating modes, for individual and simultaneous use, following a design procedure based on linear control theory. Simulations and experimental investigations have been performed to show the stability of the proposed estimators.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124244342","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":"Microcontroller-based fuzzy logic active filter for selective harmonic compensation","authors":"A. Dell'Aquila, A. Lecci, Marco Liserre","doi":"10.1109/IAS.2003.1257515","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257515","url":null,"abstract":"The half-bridge converter can be successfully employed as active filter in single-phase systems. The reduced number of semiconductor switches together with the need of balancing the capacitor voltages makes its control challenging especially if the aim is to have a simple digital algorithm easy to be implemented on an industrial microcontroller. Thus it has been chosen to adopt a fuzzy logic control the design of which is based on the dead-beat theory. The objective is to establish a link between the dead-beat control and the fuzzy logic control so as to provide dead-beat control with more intelligence and to reduce the trial and error attempts for the fuzzy controller tuning. The analysis developed and the consequent control include all the phenomena using no knowledge of the load, of the coupling filter or of the grid parameters thanks to the fuzzy logic computing. The proposed single phase active filter is controlled by the 7045F Hitachi microcontroller. Three techniques have been implemented in order to have a comparison: a classical hysteresis control and two predictive ones. The experimental results are discussed to better appreciate the impact of fuzzy logic in the design of controllers for low cost applications.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122555058","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}
D. Hwang, Ki-Chang Lee, YongJun Kim, Sungwoo Bae, Dong-Hee Kim, Chae-Gyun Ro
{"title":"Voltage stresses on stator windings of induction motors driven by IGBT PWM inverters","authors":"D. Hwang, Ki-Chang Lee, YongJun Kim, Sungwoo Bae, Dong-Hee Kim, Chae-Gyun Ro","doi":"10.1109/IAS.2003.1257537","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257537","url":null,"abstract":"In the IGBT PWM inverter, insulation breakdown and irregular voltage distribution on stator winding due to high rate of voltage rise (dv/dt) caused by high-frequency switching and impedance mismatches between inverter and motor have been treated as the main consideration. This paper describes the distribution characteristics of switching the surge voltage in the stator windings of an induction motor driven by IGBT PWM inverter. To analyze the voltage distribution between turns and coils of the stator winding, an equivalent circuit model of the induction motor including feeder cable is proposed and high frequency parameters are computed by finite-element analysis. From the electro-magnetic transient program (EMTP) simulation of the entire system, which consists of induction motor, feeder cable, and PWM inverter, the effects of rising time of the inverter output voltage, cable length, and switching frequency on the voltage distribution are also presented. A 380 V, 50 HP three phase induction motor with taps from the first through fifth turns has been built in order to experimentally measure the turn voltage and it provides informative experimental results.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125023347","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 wavelet-based multi-resolution PID controller","authors":"S. Parvez, Zhiqiang Gao","doi":"10.1109/IAS.2003.1257474","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257474","url":null,"abstract":"This paper presents a novel controller based on multi-resolution decomposition using wavelets. The controller is similar to a proportional-integral-derivative controller in principle and application. The output from a motion control system represents the cumulative effect of uncertainties such as measurement noise, frictional variation and external torque disturbances, which manifest at different scales. The wavelet is used to decompose the error signal into signals at different scales. These signals are then used to compensate for the uncertainties in the plant. Through hardware results on a motion control system this controller is shown to perform better than a PID in terms of its ability to provide smooth control signal, better disturbance and noise rejection.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445091","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}
Z. Tang, P. Pillay, A. Omekanda, Chen Li, C. Cetinkaya
{"title":"Effects of material properties on switched reluctance motor vibration determination","authors":"Z. Tang, P. Pillay, A. Omekanda, Chen Li, C. Cetinkaya","doi":"10.1109/IAS.2003.1257508","DOIUrl":"https://doi.org/10.1109/IAS.2003.1257508","url":null,"abstract":"The switched reluctance motor is well known for its higher acoustic noise, caused by stator vibrations. Techniques for noise reduction require knowledge of the modal frequencies, which depend on mechanical shapes and dimensions as well as material properties, for example, Young's modulus, Poisson's ratio, mass density, etc. It is found that the generally accepted value of Young's modulus is not valid for a machine with laminations and no frame. This paper introduces a simple and nondestructive method for the measurement of Young's modulus; it is then used in a finite element program to determine the resonant frequencies of SRM stator vibration. The effects of mass density and Poisson's ratios are also discussed. The FE results are validated by vibration tests, which show good accuracy.","PeriodicalId":288109,"journal":{"name":"38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125592831","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}