Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778708
S. Mihajlović, Caslav Lazovc
Storm of October 2003 and November 2004 belongs to the second maximum in the 23rd solar sunspot's cycle. Spectacular solar-geophysical processes were registered in the geospace from 21 to 31 October 2003. During 03-10, November 2004, the largest flare were accompanied by halo CMEs emission and the super active sunspot groups dominated in the solar activity. During those days, in the magnetic field of Sun, super active group of sunspots appeared with solar flares. This explosion of energy from the Sun's magnetic field induced very intense disturbances in the Earth electromagnetic field. Therefore, October 2003 and November 2004 are registered as the magnetic storms of class A. In this paper, some specific characteristics of this exceptionally intense solargeomagnetic activity are shown. Whilst the elevated X-ray component from a solar flare or coronal mass ejection (CME) can be significant , the effects of large particle events to the secondary radiation environment at jet aircraft cruising altitudes, can have consequences for both people and micro electronics used in modern generation aircraft. It has been shown that dose rates increase with higher latitudes and altitudes, and due to the geomagnetic field that deflect incoming solar and galactic cosmic ray, we get greater shielding closer to the equator.
{"title":"The Disturbances of the Solar-Geomagnetic Activity","authors":"S. Mihajlović, Caslav Lazovc","doi":"10.1109/EPEPEMC.2006.4778708","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778708","url":null,"abstract":"Storm of October 2003 and November 2004 belongs to the second maximum in the 23rd solar sunspot's cycle. Spectacular solar-geophysical processes were registered in the geospace from 21 to 31 October 2003. During 03-10, November 2004, the largest flare were accompanied by halo CMEs emission and the super active sunspot groups dominated in the solar activity. During those days, in the magnetic field of Sun, super active group of sunspots appeared with solar flares. This explosion of energy from the Sun's magnetic field induced very intense disturbances in the Earth electromagnetic field. Therefore, October 2003 and November 2004 are registered as the magnetic storms of class A. In this paper, some specific characteristics of this exceptionally intense solargeomagnetic activity are shown. Whilst the elevated X-ray component from a solar flare or coronal mass ejection (CME) can be significant , the effects of large particle events to the secondary radiation environment at jet aircraft cruising altitudes, can have consequences for both people and micro electronics used in modern generation aircraft. It has been shown that dose rates increase with higher latitudes and altitudes, and due to the geomagnetic field that deflect incoming solar and galactic cosmic ray, we get greater shielding closer to the equator.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124343245","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778384
M. Stadler, J. Pforr
This paper presents results of the analysis and design of a multi-phase buck converter with integrated filter inductor when operated with a wide range of voltage conversion ratios. Included are the analysis of the converter input and output currents to optimize the required filter capacitors, the analysis and design of the integrated filter inductor and results of a state-space controller that provides robust control of the output voltage for the required wide range of input voltages and loads ranging from full to no-load conditions. The influence of the wide range of input voltages to the operation of the converter is demonstrated. A prototype converter with four phases and an integrated filter inductor has been built and tested to verify predictions from the analysis.
{"title":"Multi-phase Converter for Wide Range of Input Voltages with Integrated Filter Inductor","authors":"M. Stadler, J. Pforr","doi":"10.1109/EPEPEMC.2006.4778384","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778384","url":null,"abstract":"This paper presents results of the analysis and design of a multi-phase buck converter with integrated filter inductor when operated with a wide range of voltage conversion ratios. Included are the analysis of the converter input and output currents to optimize the required filter capacitors, the analysis and design of the integrated filter inductor and results of a state-space controller that provides robust control of the output voltage for the required wide range of input voltages and loads ranging from full to no-load conditions. The influence of the wide range of input voltages to the operation of the converter is demonstrated. A prototype converter with four phases and an integrated filter inductor has been built and tested to verify predictions from the analysis.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127570350","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778716
W. Egger, Oswald Drogser, B. Eichberger
Partnership for education will be one of the most important key points with respect to our information transfer for future students yet staying in high schools. Cooperation between universities of applied sciences and high schools gives the basis for transferring true messages about our study curriculum, best study behaviour and optimum profession chances to the kids. High school professors are the key personal partners for that information transmission and contact circle. Therefore, we give special trainings in engineering sciences to carefully selected teachers and assist them in technology, modern measurement systems, electronics, and robotics. This contribution describes some projects for training the teachers and assisting in education at high school level. The method to teach and help these partners is considered highly efficient in supporting the students to select the appropriate study in convergence to their abilities and interest.
{"title":"\"Train the Trainer\" - Technology Assistance for High Schools","authors":"W. Egger, Oswald Drogser, B. Eichberger","doi":"10.1109/EPEPEMC.2006.4778716","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778716","url":null,"abstract":"Partnership for education will be one of the most important key points with respect to our information transfer for future students yet staying in high schools. Cooperation between universities of applied sciences and high schools gives the basis for transferring true messages about our study curriculum, best study behaviour and optimum profession chances to the kids. High school professors are the key personal partners for that information transmission and contact circle. Therefore, we give special trainings in engineering sciences to carefully selected teachers and assist them in technology, modern measurement systems, electronics, and robotics. This contribution describes some projects for training the teachers and assisting in education at high school level. The method to teach and help these partners is considered highly efficient in supporting the students to select the appropriate study in convergence to their abilities and interest.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129129277","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778710
I. G. Burrel, S. Leballois, E. Monmasson, L. Prevond
The simultaneous production of heat and power at a small-scale is already a well known technique. Cogeneration is one of the main ways to bring about decentralised, embedded, localised and/or autonomous power production. However, it is still a challenge to design cogenerators to be below 10 kW as required for the smallest applications such as providing heat and power to a single house. This paper specifically introduces a Stirling cogeneration system for which nominal power is 1 kW. The system connects a new "double-effect" Stirling engine with a linear induction generator. The connection is done via the engine's piston that serves also as the secondary (mover) of the generator. First of all, the system is described, then, a state-space model of the co-generator under steady-state oscillatory conditions is presented in order to synthesize a controller that ensures robust stability and desired performances through the resistant effort created by the generator on the piston.
{"title":"Energy Performance and Stability of Stirling Micro-Cogeneration System","authors":"I. G. Burrel, S. Leballois, E. Monmasson, L. Prevond","doi":"10.1109/EPEPEMC.2006.4778710","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778710","url":null,"abstract":"The simultaneous production of heat and power at a small-scale is already a well known technique. Cogeneration is one of the main ways to bring about decentralised, embedded, localised and/or autonomous power production. However, it is still a challenge to design cogenerators to be below 10 kW as required for the smallest applications such as providing heat and power to a single house. This paper specifically introduces a Stirling cogeneration system for which nominal power is 1 kW. The system connects a new \"double-effect\" Stirling engine with a linear induction generator. The connection is done via the engine's piston that serves also as the secondary (mover) of the generator. First of all, the system is described, then, a state-space model of the co-generator under steady-state oscillatory conditions is presented in order to synthesize a controller that ensures robust stability and desired performances through the resistant effort created by the generator on the piston.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"48 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132653452","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778436
C. Botan, F. Ostafi
The paper presents fixed and free end-point linear quadratic problems for drive systems with brushless or D.C. motors. Symmetrical algorithms for the both problems are proposed. These algorithms can be easier implemented by comparison with classical procedures. Simulation results and a comparison between the two type of problems are presented in the last section
{"title":"Discrete Free and Fixed End-Point Optimal Control Problems for Linear Electrical Drive Systems","authors":"C. Botan, F. Ostafi","doi":"10.1109/EPEPEMC.2006.4778436","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778436","url":null,"abstract":"The paper presents fixed and free end-point linear quadratic problems for drive systems with brushless or D.C. motors. Symmetrical algorithms for the both problems are proposed. These algorithms can be easier implemented by comparison with classical procedures. Simulation results and a comparison between the two type of problems are presented in the last section","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133520293","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778477
D. Voncina, M. Petkovšek, J. Nastran, P. Zajec
The paper deals with a front-end topology of a low power switched-mode power supply intended for a plug and play use. During its design, a special attention has been paid to a simple and cost effective solution confronted with a wide input line-voltage range (57 ÷ 3× 240)·(1 ± 0.2) VRMS and with the frequency range from 40 Hz to 65 Hz. Such extreme demands are particularly of interest in industrial applications where devices should be supplied either from the single- two- or three-phase network. In order to reduce human errors and production cost, no mechanical switches are allowed. The paper proposes a novel concept of the Flyback converter that solves the designated task with variable turns ratio of the transformer, while keeping the switching frequency constant. The implemented transformer with its control circuit enables on-line adaptation to the temporary value of input phase-voltage. As a consequence, voltage stress of implemented switching transistors is also reduced.
{"title":"Low Power Multiple Output DC Supply -Part I: Flyback Converter with Wide Input Voltage Range","authors":"D. Voncina, M. Petkovšek, J. Nastran, P. Zajec","doi":"10.1109/EPEPEMC.2006.4778477","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778477","url":null,"abstract":"The paper deals with a front-end topology of a low power switched-mode power supply intended for a plug and play use. During its design, a special attention has been paid to a simple and cost effective solution confronted with a wide input line-voltage range (57 ÷ 3× 240)·(1 ± 0.2) VRMS and with the frequency range from 40 Hz to 65 Hz. Such extreme demands are particularly of interest in industrial applications where devices should be supplied either from the single- two- or three-phase network. In order to reduce human errors and production cost, no mechanical switches are allowed. The paper proposes a novel concept of the Flyback converter that solves the designated task with variable turns ratio of the transformer, while keeping the switching frequency constant. The implemented transformer with its control circuit enables on-line adaptation to the temporary value of input phase-voltage. As a consequence, voltage stress of implemented switching transistors is also reduced.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130468033","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}
Pub Date : 2006-08-01DOI: 10.1080/09398368.2009.11463705
M. Cirrincione, M. Pucci, G. Vitale, G. Scordato
This paper presents a single-phase shunt active power filter for current harmonic compensation based on neural filtering. The shunt active filter, realized by a current controlled inverter, has been used to compensate a nonlinear current load by receiving its reference from a neural adaptive notch filter. This is a recursive notch filter for the fundamental grid frequency (50 Hz) and is based on the use of a linear adaptive neuron (ADALINE). In this way the inverter creates a current equal in amplitude and opposite in sign to the load harmonic current, thus creating an almost sinusoidal grid current. The methodology has been applied in numerical simulations and experimentally on a properly devised test setup. With this regard, a reduced scale electrical grid has been built and used for assessing this methodology.
{"title":"A Single-Phase Shunt Active Power Filter for Current Harmonic Compensation by Adaptive Neural Filtering","authors":"M. Cirrincione, M. Pucci, G. Vitale, G. Scordato","doi":"10.1080/09398368.2009.11463705","DOIUrl":"https://doi.org/10.1080/09398368.2009.11463705","url":null,"abstract":"This paper presents a single-phase shunt active power filter for current harmonic compensation based on neural filtering. The shunt active filter, realized by a current controlled inverter, has been used to compensate a nonlinear current load by receiving its reference from a neural adaptive notch filter. This is a recursive notch filter for the fundamental grid frequency (50 Hz) and is based on the use of a linear adaptive neuron (ADALINE). In this way the inverter creates a current equal in amplitude and opposite in sign to the load harmonic current, thus creating an almost sinusoidal grid current. The methodology has been applied in numerical simulations and experimentally on a properly devised test setup. With this regard, a reduced scale electrical grid has been built and used for assessing this methodology.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117221987","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778706
F. Dime, B. Music, R. Osredkar
Tests of various types of inexpensive global positioning system (GPS) receivers were performed in order to asses the utility of the technique for archeo-geophysical surveying. It is demonstrated that under favorable conditions a 30 cm relative uncertainty of the kinematical positioning is achievable and that under conditions, where a degradation of the GPS fixes occurs during the scans, it is possible to compensate for the errors, and refine the results by post-processing of the measurement data
{"title":"Attaining Required Positioning Accuracy in Archeo-Geophysical Surveying by GPS","authors":"F. Dime, B. Music, R. Osredkar","doi":"10.1109/EPEPEMC.2006.4778706","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778706","url":null,"abstract":"Tests of various types of inexpensive global positioning system (GPS) receivers were performed in order to asses the utility of the technique for archeo-geophysical surveying. It is demonstrated that under favorable conditions a 30 cm relative uncertainty of the kinematical positioning is achievable and that under conditions, where a degradation of the GPS fixes occurs during the scans, it is possible to compensate for the errors, and refine the results by post-processing of the measurement data","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131282382","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778509
B. Buti, I. Nagy, E. Masada
The paper is concerned with the stability analysis of a feedback controlled resonant dual channel buck&boost converter. The output voltage is controlled by using constant frequency PWM and PI controller. The analysis is based on the eigenvalues of the Jacobian matrix of the Poincaré Map Function (PMF). After small perturbation determining the deviations of the state variables from the periodic trajectory, the Jacobian matrix is calculated without the need to determine the PMF itself. The introduction of the so-called auxiliary state vector greatly facilitates the calculation. Calculation and simulation results included helps the design of the control loop.
{"title":"Stability Analysis of PWM-Controlled Dual Channel Resonant Buck&Boost Converter Using PI Controller","authors":"B. Buti, I. Nagy, E. Masada","doi":"10.1109/EPEPEMC.2006.4778509","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778509","url":null,"abstract":"The paper is concerned with the stability analysis of a feedback controlled resonant dual channel buck&boost converter. The output voltage is controlled by using constant frequency PWM and PI controller. The analysis is based on the eigenvalues of the Jacobian matrix of the Poincaré Map Function (PMF). After small perturbation determining the deviations of the state variables from the periodic trajectory, the Jacobian matrix is calculated without the need to determine the PMF itself. The introduction of the so-called auxiliary state vector greatly facilitates the calculation. Calculation and simulation results included helps the design of the control loop.","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"42 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132640072","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}
Pub Date : 2006-08-01DOI: 10.1109/EPEPEMC.2006.4778437
K. Wei, Yan Xiang-wu, Liang He-ming, Zhang Li-xia
In order to evaluate power quality more accurately a power quality monitoring system based on DSP and PCI bus technique is proposed. This system combines the powerful operational capability of DSP chip and the abundant resource of the computer together. It can monitor the five targets of power quality real-time and storage the history data with database technique. Test proved that this monitoring system can meet the requirement of the modern power quality monitoring
{"title":"Design and Realization of Power Quality Monitoring System Based on DSP and PCI Technique","authors":"K. Wei, Yan Xiang-wu, Liang He-ming, Zhang Li-xia","doi":"10.1109/EPEPEMC.2006.4778437","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2006.4778437","url":null,"abstract":"In order to evaluate power quality more accurately a power quality monitoring system based on DSP and PCI bus technique is proposed. This system combines the powerful operational capability of DSP chip and the abundant resource of the computer together. It can monitor the five targets of power quality real-time and storage the history data with database technique. Test proved that this monitoring system can meet the requirement of the modern power quality monitoring","PeriodicalId":401288,"journal":{"name":"2006 12th International Power Electronics and Motion Control Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134107050","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}
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