Pub Date : 2004-06-01DOI: 10.1109/LPEL.2004.835845
This page or pages intentionally left blank.
有意留白的这一页或几页。
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Pub Date : 2004-06-01DOI: 10.1109/LPEL.2004.831157
V.G. Agelidis;A. Balouktsis;I. Balouktsis
The well-known harmonic elimination pulse-width modulation (HE-PWM) method for inverter control is revisited. The HE-PWM waveform presents many challenges. It has multiple solutions that not only need to be found as easily and as fast as possible, but must also be evaluated in order to identify the best technique when overall harmonic performance is concerned. Algorithms presented so far rely on starting values that are close to the exact solutions to ensure convergence. A new method based on resultant theory promises limited success since it can only work when a small number of harmonics is to be eliminated. In this paper, it is shown that a minimization technique in combination with a random search results in a relatively simple approach that finds all possible sets of solutions. It is confirmed that numerous independent sets of solutions exist and the ones that offer better harmonic performance are identified. Three cases are reported in detail, including when two, four and six nontriplen odd harmonics are to be eliminated.
{"title":"On applying a minimization technique to the harmonic elimination PWM control: the bipolar waveform","authors":"V.G. Agelidis;A. Balouktsis;I. Balouktsis","doi":"10.1109/LPEL.2004.831157","DOIUrl":"https://doi.org/10.1109/LPEL.2004.831157","url":null,"abstract":"The well-known harmonic elimination pulse-width modulation (HE-PWM) method for inverter control is revisited. The HE-PWM waveform presents many challenges. It has multiple solutions that not only need to be found as easily and as fast as possible, but must also be evaluated in order to identify the best technique when overall harmonic performance is concerned. Algorithms presented so far rely on starting values that are close to the exact solutions to ensure convergence. A new method based on resultant theory promises limited success since it can only work when a small number of harmonics is to be eliminated. In this paper, it is shown that a minimization technique in combination with a random search results in a relatively simple approach that finds all possible sets of solutions. It is confirmed that numerous independent sets of solutions exist and the ones that offer better harmonic performance are identified. Three cases are reported in detail, including when two, four and six nontriplen odd harmonics are to be eliminated.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 2","pages":"41-44"},"PeriodicalIF":0.0,"publicationDate":"2004-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.831157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49984295","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 : 2004-06-01DOI: 10.1109/LPEL.2004.835848
IEEE Member Digital Library.
IEEE会员数字图书馆。
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Pub Date : 2004-06-01DOI: 10.1109/LPEL.2004.834615
J. Calvente;L. Martinez-Salamero;H. Valderrama;E. Vidal-Idiarte
A dynamic analysis of the boost converter with an output filter reveals that magnetic coupling between inductors allows transfer of the zeros to the left half-plane of the control-to-output transfer function. Similar results requiring smaller magnetic components are obtained by combining magnetic coupling with damping of the output filter. The analysis is based on the application of the Routh-Hurtwitz's criterion to the numerator of the transfer function in order to derive the design conditions for the converter parameters. A design example illustrates the procedure, and experimental results verify the theoretical predictions. The application of these techniques will allow the design of high efficiency voltage boost-based regulators with dynamic behavior similar to buck-derived structures.
{"title":"Using magnetic coupling to eliminate right half-plane zeros in boost converters","authors":"J. Calvente;L. Martinez-Salamero;H. Valderrama;E. Vidal-Idiarte","doi":"10.1109/LPEL.2004.834615","DOIUrl":"https://doi.org/10.1109/LPEL.2004.834615","url":null,"abstract":"A dynamic analysis of the boost converter with an output filter reveals that magnetic coupling between inductors allows transfer of the zeros to the left half-plane of the control-to-output transfer function. Similar results requiring smaller magnetic components are obtained by combining magnetic coupling with damping of the output filter. The analysis is based on the application of the Routh-Hurtwitz's criterion to the numerator of the transfer function in order to derive the design conditions for the converter parameters. A design example illustrates the procedure, and experimental results verify the theoretical predictions. The application of these techniques will allow the design of high efficiency voltage boost-based regulators with dynamic behavior similar to buck-derived structures.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 2","pages":"58-62"},"PeriodicalIF":0.0,"publicationDate":"2004-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.834615","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49984299","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 : 2004-06-01DOI: 10.1109/LPEL.2004.835844
Provides a listing of current society officers.
提供现时社会人员的名单。
{"title":"IEEE Power Electronics Society Information","authors":"","doi":"10.1109/LPEL.2004.835844","DOIUrl":"https://doi.org/10.1109/LPEL.2004.835844","url":null,"abstract":"Provides a listing of current society officers.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 2","pages":"c3-c3"},"PeriodicalIF":0.0,"publicationDate":"2004-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.835844","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49984305","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 : 2004-06-01DOI: 10.1109/LPEL.2004.835846
Provides instructions and guidelines to prospective authors who wish to submit manuscripts.
为希望提交手稿的潜在作者提供说明和指导。
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Pub Date : 2004-03-01DOI: 10.1109/LPEL.2004.828443
B.M.T. Ho;H.S.H. Chung;W.L. Lo
This letter proposes the use of system oscillation in a perturbation-based maximum power point (MPP) tracker to locate the MPP of photovoltaic (PV) panels. Instead of using an explicit perturbation source, the tracker controller is designed to make the overall system self-oscillate, so that the duty cycle of the main switch in the power conversion stage (PCS) is inherently modulated with a small-amplitude variation at a predefined frequency around the required steady-state value. The tracking mechanism is based on comparing the ac component (due to the variation of the duty cycle) and the average value of the input voltage of the PCS to determine the quiescent duty cycle. The proposed technique does not approximate the panel characteristics and can globally locate the MPP under wide insolation conditions. The tracking capability has been verified experimentally with a 10-W PV panel in a controlled setup. Performances at the steady state and during the large-signal change of the insolation level have been studied.
{"title":"Use of system oscillation to locate the MPP of PV panels","authors":"B.M.T. Ho;H.S.H. Chung;W.L. Lo","doi":"10.1109/LPEL.2004.828443","DOIUrl":"https://doi.org/10.1109/LPEL.2004.828443","url":null,"abstract":"This letter proposes the use of system oscillation in a perturbation-based maximum power point (MPP) tracker to locate the MPP of photovoltaic (PV) panels. Instead of using an explicit perturbation source, the tracker controller is designed to make the overall system self-oscillate, so that the duty cycle of the main switch in the power conversion stage (PCS) is inherently modulated with a small-amplitude variation at a predefined frequency around the required steady-state value. The tracking mechanism is based on comparing the ac component (due to the variation of the duty cycle) and the average value of the input voltage of the PCS to determine the quiescent duty cycle. The proposed technique does not approximate the panel characteristics and can globally locate the MPP under wide insolation conditions. The tracking capability has been verified experimentally with a 10-W PV panel in a controlled setup. Performances at the steady state and during the large-signal change of the insolation level have been studied.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2004-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.828443","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50304318","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 : 2004-03-01DOI: 10.1109/LPEL.2004.831248
Provides instructions and guidelines to prospective authors who wish to submit manuscripts.
为希望提交手稿的潜在作者提供说明和指导。
{"title":"IEEE Power Electronics Letters Information for authors","authors":"","doi":"10.1109/LPEL.2004.831248","DOIUrl":"https://doi.org/10.1109/LPEL.2004.831248","url":null,"abstract":"Provides instructions and guidelines to prospective authors who wish to submit manuscripts.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 1","pages":"35-36"},"PeriodicalIF":0.0,"publicationDate":"2004-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.831248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50304326","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 : 2004-03-01DOI: 10.1109/LPEL.2004.831251
Leading the field since 1884: IEEE
自1884年以来引领该领域：IEEE
{"title":"Advertisement - Leading the field since 1884","authors":"","doi":"10.1109/LPEL.2004.831251","DOIUrl":"https://doi.org/10.1109/LPEL.2004.831251","url":null,"abstract":"Leading the field since 1884: IEEE","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 1","pages":"37-37"},"PeriodicalIF":0.0,"publicationDate":"2004-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.831251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50304327","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 : 2004-03-01DOI: 10.1109/LPEL.2004.830245
M. Ferdowsi;A. Emadi
A new control technique for DC-DC converters is introduced and applied to a boost converter operating in discontinuous conduction mode (DCM). In contrast to conventional control methods, the principal idea of the proposed control scheme is to obtain samples of the required signals and estimate the required switch-on time. The proposed technique is applicable to any converter operating in DCM, including power factor correctors (PFC), however, this letter mainly focuses on boost topology. In this letter, the main mathematical concept of a new control algorithm is introduced, as well as the robustness investigation of the proposed method with simulation and experimental results.
{"title":"Estimative current mode control technique for DC-DC converters operating in discontinuous conduction mode","authors":"M. Ferdowsi;A. Emadi","doi":"10.1109/LPEL.2004.830245","DOIUrl":"https://doi.org/10.1109/LPEL.2004.830245","url":null,"abstract":"A new control technique for DC-DC converters is introduced and applied to a boost converter operating in discontinuous conduction mode (DCM). In contrast to conventional control methods, the principal idea of the proposed control scheme is to obtain samples of the required signals and estimate the required switch-on time. The proposed technique is applicable to any converter operating in DCM, including power factor correctors (PFC), however, this letter mainly focuses on boost topology. In this letter, the main mathematical concept of a new control algorithm is introduced, as well as the robustness investigation of the proposed method with simulation and experimental results.","PeriodicalId":100635,"journal":{"name":"IEEE Power Electronics Letters","volume":"2 1","pages":"20-23"},"PeriodicalIF":0.0,"publicationDate":"2004-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LPEL.2004.830245","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50304322","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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