Pub Date : 2011-05-11DOI: 10.1109/POWERENG.2011.6036529
N. Ginot, C. Batard, M. Mannah, M. Machmoum
The use of electrical power supply networks as a communication medium is currently under development. For example, Power Line Communication (PLC) allows nowadays interconnecting high-speed multimedia equipments while using the electrical mains supply. This paper revolves around this theme, but is purely dedicated to the Pulse Width Modulation (PWM) electrical network. The PWM power supplies are used in industrial applications such as motor drive application. The work in progress is at the boundary of two distinct fields: communication and high currents. Firstly, we underline the limits of functioning of the PLC modems on a PWM power supply. Subsequently, a filtering solution employing passive filters is discussed. Finally, the development of a new modem dedicated to PWM power supply is presented and inserted in a motor drive application. Experimental results show the ability of the modem to transmit high-speed information in such power supplies. The Bit Error Rate (BER) is measured for different power of the transmitted signal.
{"title":"Data transmission over an inverter-fed induction machine","authors":"N. Ginot, C. Batard, M. Mannah, M. Machmoum","doi":"10.1109/POWERENG.2011.6036529","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036529","url":null,"abstract":"The use of electrical power supply networks as a communication medium is currently under development. For example, Power Line Communication (PLC) allows nowadays interconnecting high-speed multimedia equipments while using the electrical mains supply. This paper revolves around this theme, but is purely dedicated to the Pulse Width Modulation (PWM) electrical network. The PWM power supplies are used in industrial applications such as motor drive application. The work in progress is at the boundary of two distinct fields: communication and high currents. Firstly, we underline the limits of functioning of the PLC modems on a PWM power supply. Subsequently, a filtering solution employing passive filters is discussed. Finally, the development of a new modem dedicated to PWM power supply is presented and inserted in a motor drive application. Experimental results show the ability of the modem to transmit high-speed information in such power supplies. The Bit Error Rate (BER) is measured for different power of the transmitted signal.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129438536","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036544
V. Pires, J. Martins, Chen Hao
In this paper a novel power conversion structure for grid-connected photovoltaic applications is presented. The proposed structure uses a four-wire voltage source inverter, two single-phase voltage source inverters and a scott transformer. PV modules arrangements can be divided in several groups. This power conversion structure is suitable for multi-string technology. The proposed structure allows multilevel output voltage. A sinusoidal pulse with modulator particularly adapted to this power converter structure is also proposed. Several simulation results are presented in order to verify the effectiveness of the proposed system.
{"title":"A modular multilevel power converter system for photovoltaic applications","authors":"V. Pires, J. Martins, Chen Hao","doi":"10.1109/POWERENG.2011.6036544","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036544","url":null,"abstract":"In this paper a novel power conversion structure for grid-connected photovoltaic applications is presented. The proposed structure uses a four-wire voltage source inverter, two single-phase voltage source inverters and a scott transformer. PV modules arrangements can be divided in several groups. This power conversion structure is suitable for multi-string technology. The proposed structure allows multilevel output voltage. A sinusoidal pulse with modulator particularly adapted to this power converter structure is also proposed. Several simulation results are presented in order to verify the effectiveness of the proposed system.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130514988","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036541
M. Mezzarobba, Luca Spangaro, A. Tessarolo
In today's power generation systems, driven by variable-speed prime movers and feeding DC or fixed-frequency grids, the output power of the alternator needs to be rectified. The presence of output rectifier bridges causes a significant distortion of phase currents. This paper investigates the role played by rotor damper circuits in limiting the effects of such distortion. The investigation is extended to the case of multiphase alternator arrangements suitable for supplying a different number of output rectifiers. The study is conducted through tests on an alternator prototype which has been operated with two kinds of rotors, one with and the other without damper circuits. Testing results show that the influence of dampers is significant only in the case of generator three-phase winding and single output bridge.
{"title":"Experimental evaluation of damper circuit influence on the performance of multiphase synchrnounous generators feeding multiple rectifiers","authors":"M. Mezzarobba, Luca Spangaro, A. Tessarolo","doi":"10.1109/POWERENG.2011.6036541","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036541","url":null,"abstract":"In today's power generation systems, driven by variable-speed prime movers and feeding DC or fixed-frequency grids, the output power of the alternator needs to be rectified. The presence of output rectifier bridges causes a significant distortion of phase currents. This paper investigates the role played by rotor damper circuits in limiting the effects of such distortion. The investigation is extended to the case of multiphase alternator arrangements suitable for supplying a different number of output rectifiers. The study is conducted through tests on an alternator prototype which has been operated with two kinds of rotors, one with and the other without damper circuits. Testing results show that the influence of dampers is significant only in the case of generator three-phase winding and single output bridge.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125840984","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036556
J. Molina, L. Sainz, J. J. Mesas
The current number of magnetic and electronic ballast discharge lamps in power distribution systems is increasing because they perform better than incandescent lamps. This paper studies the magnetic discharge lamp modeling. In particular, the arc voltage waveform is analyzed and the limitations of the square waveform model are revealed from experimental measurements.
{"title":"On the square arc voltage waveform model in magnetic discharge lamp studies","authors":"J. Molina, L. Sainz, J. J. Mesas","doi":"10.1109/POWERENG.2011.6036556","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036556","url":null,"abstract":"The current number of magnetic and electronic ballast discharge lamps in power distribution systems is increasing because they perform better than incandescent lamps. This paper studies the magnetic discharge lamp modeling. In particular, the arc voltage waveform is analyzed and the limitations of the square waveform model are revealed from experimental measurements.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114430105","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036475
M. Spichartz, V. Staudt, A. Steimel
The control of power-electronic laboratory test benches for academic use and for industrial research and development demands a real-time control system with high flexibility and reliability at low cost. Personal computers are an ideal basis for this kind of real-time control systems because of their high processing power at very low cost and their expandability by additional interface cards. An additional field-programmable gate array is necessary to assure the real-time ability by defining the equidistant hard real-time task including the measurement routines, the control calculations and the switching signals output. The presented control system is optimized for the use in a Modular Multilevel Converter test bench, designed as a five-level converter with a high number of inputs and outputs.
{"title":"PC-based real-time control system for power-electronic test benches with high I/O requirements","authors":"M. Spichartz, V. Staudt, A. Steimel","doi":"10.1109/POWERENG.2011.6036475","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036475","url":null,"abstract":"The control of power-electronic laboratory test benches for academic use and for industrial research and development demands a real-time control system with high flexibility and reliability at low cost. Personal computers are an ideal basis for this kind of real-time control systems because of their high processing power at very low cost and their expandability by additional interface cards. An additional field-programmable gate array is necessary to assure the real-time ability by defining the equidistant hard real-time task including the measurement routines, the control calculations and the switching signals output. The presented control system is optimized for the use in a Modular Multilevel Converter test bench, designed as a five-level converter with a high number of inputs and outputs.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126923136","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036557
Wei Cui, Hang Zhang, Yanhua Ma, Yuejin Zhang
This paper describes an optimal regenerative braking control scheme for a permanent magnet brushless DC motor of an electric motorcycle to achieve dual goals of the electric brake and the maximal power harvest in two cases of the road, downhill and flat, without any additional changes on the hardware. Based on regenerative braking of brushless DC motor in half bridge modulation mode, the relationship between average regenerative current on the DC bus and PWM duty cycle under different speeds was studied intensively from the three aspects of theoretical deduction, simulation based on Matlab/Simulink and platform experiments, and then a simple but effective scheme considering the actual application was proposed tentatively to achieve the dual goals. Since the braking kinetic energy is harvested in the form of the electric energy stored up in battery, the scheme could improve the driving range, safeness, noise preventability and cost effective of electric motorcycles.
{"title":"Regenerative braking control method and optimal scheme for electric motorcycle","authors":"Wei Cui, Hang Zhang, Yanhua Ma, Yuejin Zhang","doi":"10.1109/POWERENG.2011.6036557","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036557","url":null,"abstract":"This paper describes an optimal regenerative braking control scheme for a permanent magnet brushless DC motor of an electric motorcycle to achieve dual goals of the electric brake and the maximal power harvest in two cases of the road, downhill and flat, without any additional changes on the hardware. Based on regenerative braking of brushless DC motor in half bridge modulation mode, the relationship between average regenerative current on the DC bus and PWM duty cycle under different speeds was studied intensively from the three aspects of theoretical deduction, simulation based on Matlab/Simulink and platform experiments, and then a simple but effective scheme considering the actual application was proposed tentatively to achieve the dual goals. Since the braking kinetic energy is harvested in the form of the electric energy stored up in battery, the scheme could improve the driving range, safeness, noise preventability and cost effective of electric motorcycles.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134033827","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036506
S. Benelghali, F. Mekri, M. Benbouzid, J. Charpentier
Multiphase generators seems to be an interesting solution for variable-speed drive applications and particularly attractive for renewable energy generation. In this context, the performance of a five-phase permanent magnet synchronous generator are evaluated within a marine current turbine and compared to a classical three-phase generator. For both topologies, a robust nonlinear control strategy, namely high-order sliding mode control, is adopted. Hence, the generators performances are analyzed, during open-circuit faults, and conclusions are derived regarding multiphase generators key features marine applications.
{"title":"Performance comparison of three — and five-phase permanent magnet generators for marine current turbine applications under open-circuit faults","authors":"S. Benelghali, F. Mekri, M. Benbouzid, J. Charpentier","doi":"10.1109/POWERENG.2011.6036506","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036506","url":null,"abstract":"Multiphase generators seems to be an interesting solution for variable-speed drive applications and particularly attractive for renewable energy generation. In this context, the performance of a five-phase permanent magnet synchronous generator are evaluated within a marine current turbine and compared to a classical three-phase generator. For both topologies, a robust nonlinear control strategy, namely high-order sliding mode control, is adopted. Hence, the generators performances are analyzed, during open-circuit faults, and conclusions are derived regarding multiphase generators key features marine applications.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131329697","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036555
J. Cunill-Sola, J. J. Mesas, L. Sainz
The current number of compact fluorescent lamps (CFL) in power distribution systems is increasing because of their low energy consumption, in comparison with traditional incandescent lamps, and their long average useful life. This paper studies CFL modeling. A "black box" model of CFLs is presented and the analytical expressions of CFL harmonic currents are provided. The study is based on experimental measurements, and numerical simulations with the PSpice simulation program and customized MATLAB software for harmonic analysis.
{"title":"Low-watt compact fluorescent lamps with electronic ballasts","authors":"J. Cunill-Sola, J. J. Mesas, L. Sainz","doi":"10.1109/POWERENG.2011.6036555","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036555","url":null,"abstract":"The current number of compact fluorescent lamps (CFL) in power distribution systems is increasing because of their low energy consumption, in comparison with traditional incandescent lamps, and their long average useful life. This paper studies CFL modeling. A \"black box\" model of CFLs is presented and the analytical expressions of CFL harmonic currents are provided. The study is based on experimental measurements, and numerical simulations with the PSpice simulation program and customized MATLAB software for harmonic analysis.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128936144","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036426
D. Foito, J. Martins, V. Pires, J. Maia
This paper proposes a new fault diagnosis methodology for of high power factor rectifiers. This method Is based on the combined with input line currents three dimensional space and the use of the on Principal Component Analysis (PCA). With the proposed method it is possible to detect and identify the power switch in which the fault has occurred. Such detection requires only the measurement the rectifier input currents. Simulation and experimental results are presented, considering for both healthy and faulty cases, to demonstrate the correctness of the proposed method.
{"title":"Fault diagnosis method for three-phase high power factor rectifier based on a pattern recognition algorithm","authors":"D. Foito, J. Martins, V. Pires, J. Maia","doi":"10.1109/POWERENG.2011.6036426","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036426","url":null,"abstract":"This paper proposes a new fault diagnosis methodology for of high power factor rectifiers. This method Is based on the combined with input line currents three dimensional space and the use of the on Principal Component Analysis (PCA). With the proposed method it is possible to detect and identify the power switch in which the fault has occurred. Such detection requires only the measurement the rectifier input currents. Simulation and experimental results are presented, considering for both healthy and faulty cases, to demonstrate the correctness of the proposed method.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128711760","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036505
R. S. Herrera, P. Salmerón, S. P. Litrán
The identification of distortion sources in a power system is a topic unsolved. The problem has a difficult solution because there are elements in the system that do not produce harmonic but amplifies the existing in the electrical network. The most common of those elements is the capacitor, very used to compensate power factor at fundamental frequency. The capacitor behaviour makes that the indices proposed up now to identify distortion sources fail in the presence of this element. In this paper, a new index is presented: the load characterization index. Besides using an extended equivalent circuit to represent the load, this index calculates the distortion introduced by the load, evaluating, besides the current distortion at its input, the voltage distortion at its terminals. The introduction of voltage assessing makes the index suitable to identify the linear and nonlinear loads in the power system even in the presence of capacitors and only from the voltage and current measured at the point of common coupling.
{"title":"Distortion sources identification in power systems with capacitor banks","authors":"R. S. Herrera, P. Salmerón, S. P. Litrán","doi":"10.1109/POWERENG.2011.6036505","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036505","url":null,"abstract":"The identification of distortion sources in a power system is a topic unsolved. The problem has a difficult solution because there are elements in the system that do not produce harmonic but amplifies the existing in the electrical network. The most common of those elements is the capacitor, very used to compensate power factor at fundamental frequency. The capacitor behaviour makes that the indices proposed up now to identify distortion sources fail in the presence of this element. In this paper, a new index is presented: the load characterization index. Besides using an extended equivalent circuit to represent the load, this index calculates the distortion introduced by the load, evaluating, besides the current distortion at its input, the voltage distortion at its terminals. The introduction of voltage assessing makes the index suitable to identify the linear and nonlinear loads in the power system even in the presence of capacitors and only from the voltage and current measured at the point of common coupling.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116124553","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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