Pub Date : 2009-03-18DOI: 10.1109/POWERENG.2009.4915237
Rogerio Santos, R. Chibante, A. Araújo, A. Carvalho
This paper presents an educational tool (TESE) that enables exploring key aspects on semiconductor theory and power circuits analysis. With this tool is possible to examine with accuracy the influence of device parameters and circuit parameters on circuit dynamic behavior, analyzing switching waveforms and typical switching parameters. The tool invokes an electrical circuit simulator (IsSpice) in order to simulate a selected circuit with parameters values defined by the user. Simulations are carried out using state-of-the art physics-based models for semiconductor devices. These models provide high quality simulation results and enable the user to explore the influence of technological and geometrical device parameters such as area, doping concentration, lifetime, etc. Besides, the model also provides a solution for the dynamic charge carrier distribution. So, theoretical relationships concerning semiconductor behavior can be explored. Some examples to use in classroom are also presented.
{"title":"TESE — A tool for teaching semiconductor theory","authors":"Rogerio Santos, R. Chibante, A. Araújo, A. Carvalho","doi":"10.1109/POWERENG.2009.4915237","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915237","url":null,"abstract":"This paper presents an educational tool (TESE) that enables exploring key aspects on semiconductor theory and power circuits analysis. With this tool is possible to examine with accuracy the influence of device parameters and circuit parameters on circuit dynamic behavior, analyzing switching waveforms and typical switching parameters. The tool invokes an electrical circuit simulator (IsSpice) in order to simulate a selected circuit with parameters values defined by the user. Simulations are carried out using state-of-the art physics-based models for semiconductor devices. These models provide high quality simulation results and enable the user to explore the influence of technological and geometrical device parameters such as area, doping concentration, lifetime, etc. Besides, the model also provides a solution for the dynamic charge carrier distribution. So, theoretical relationships concerning semiconductor behavior can be explored. Some examples to use in classroom are also presented.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122657153","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915155
J. Orosa, E. J. García-Bustelo, J. A. Perez
Galician climate conditions show the right ambience for wind turbines power generation during the winter and spring season whereas in the summer, the low wind velocity and the moist air density reduce the possibility of energy conversion. To solve this problem, low wind speed wind turbines were assessed during the last few years. In recent papers, some authors like Shikha have proved the feasibility to employ a wind concentrator for low speed winds turbines but in those studies moist air properties were not deeply analyzed, especially its effects on the moist air density and the wind velocity. In this paper a wind turbine concentrator was designed, manufactured and tested under different moist air density conditions. Results showed a variation in the flow lines when the ambience moist air density is low, therefore the output velocity would be increased regarding other previous studies. This wind turbine concentrator showed ideal working conditions during Galician summertime.
{"title":"Climate effects in low speed wind turbine's concentrators","authors":"J. Orosa, E. J. García-Bustelo, J. A. Perez","doi":"10.1109/POWERENG.2009.4915155","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915155","url":null,"abstract":"Galician climate conditions show the right ambience for wind turbines power generation during the winter and spring season whereas in the summer, the low wind velocity and the moist air density reduce the possibility of energy conversion. To solve this problem, low wind speed wind turbines were assessed during the last few years. In recent papers, some authors like Shikha have proved the feasibility to employ a wind concentrator for low speed winds turbines but in those studies moist air properties were not deeply analyzed, especially its effects on the moist air density and the wind velocity. In this paper a wind turbine concentrator was designed, manufactured and tested under different moist air density conditions. Results showed a variation in the flow lines when the ambience moist air density is low, therefore the output velocity would be increased regarding other previous studies. This wind turbine concentrator showed ideal working conditions during Galician summertime.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124755917","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915255
S. Mariano, M. Coimbra, M. Calado, L. Ferreira
Deregulation and liberalization of electric power industry, among other things, has created new requirements for the market participants. The power system engineer, operator, and, in general, the market participant is being faced with requirements for which he does not have adequate training and the proper software tools. Particularly for the generation companies (GenCo) the exploitation of hydro power plants is foremost concern. In this scenario the powerhouse input-output characteristics (I/O) of hydro power plants are major curves for the optimization problem of central exploitation. Some methods had been applied for the I/O curves determination without the head loss effect consideration and neglecting the non-linearity characteristic or considering as stepwise approximation. This paper presents a new method that takes into account both the non-linearity characteristic and the head loss effect. This method, due to unit's non-linearity proper characteristics, requires that the cost of each unit (water flow through powerhouse) must be expressed in terms of quadratic costs. Through this approach, the obtained results are optimal, but referring to a convex objective function (approximated to the original function), with added advantage on reduced computation time.
{"title":"Power house I/O curves considering head dependency","authors":"S. Mariano, M. Coimbra, M. Calado, L. Ferreira","doi":"10.1109/POWERENG.2009.4915255","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915255","url":null,"abstract":"Deregulation and liberalization of electric power industry, among other things, has created new requirements for the market participants. The power system engineer, operator, and, in general, the market participant is being faced with requirements for which he does not have adequate training and the proper software tools. Particularly for the generation companies (GenCo) the exploitation of hydro power plants is foremost concern. In this scenario the powerhouse input-output characteristics (I/O) of hydro power plants are major curves for the optimization problem of central exploitation. Some methods had been applied for the I/O curves determination without the head loss effect consideration and neglecting the non-linearity characteristic or considering as stepwise approximation. This paper presents a new method that takes into account both the non-linearity characteristic and the head loss effect. This method, due to unit's non-linearity proper characteristics, requires that the cost of each unit (water flow through powerhouse) must be expressed in terms of quadratic costs. Through this approach, the obtained results are optimal, but referring to a convex objective function (approximated to the original function), with added advantage on reduced computation time.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125066693","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915225
Xabier Juankorena, Iker Esandi, Jesús López, L. Marroyo
This article proposes a method to enable variable speed wind turbine primary regulation. The method consists of adjusting the power-speed curve of the turbine to the grid frequency, thus varying the percentage of maximum power available injected to the grid. This is achieved by operating at rotational speed different from the optimal, and not controlling the pitch angle. Two practical implementations of the method are proposed and demonstrated by simulation exercises.
{"title":"Method to enable variable speed wind turbine primary regulation","authors":"Xabier Juankorena, Iker Esandi, Jesús López, L. Marroyo","doi":"10.1109/POWERENG.2009.4915225","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915225","url":null,"abstract":"This article proposes a method to enable variable speed wind turbine primary regulation. The method consists of adjusting the power-speed curve of the turbine to the grid frequency, thus varying the percentage of maximum power available injected to the grid. This is achieved by operating at rotational speed different from the optimal, and not controlling the pitch angle. Two practical implementations of the method are proposed and demonstrated by simulation exercises.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129016936","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915242
Xibin Ma, Jinsheng Wang, B. Cheng, Wenjie Liu, Guanzhong Peng
In this paper the ZGT (zonal guarantee technology), which has been introduced in the companion paper, is applied to the deep-buried underground engineering. Then, four novel ventilation and cooling systems for the underground diesel generator plant are presented. The optimization of the location of the fume exactor and exhaust duct and the speed of the supply air is done by the CFD simulation for one of the ventilation and cooling system. The results show that the ZGT could remove the residual heat and contaminant effectively. It is also advised that the form 1, in which the heated air is exhausted by both sides of the duct and the fume exactor locates on the lower right of the duct, may be the most effective one. According to the numerical experiment, the temperature and the velocity profile are controlled strictly when the speed of supply air is 0.8m/s.
{"title":"Zonal guarantee technology of indoor environment for the underground diesel generator plant, part II: Application","authors":"Xibin Ma, Jinsheng Wang, B. Cheng, Wenjie Liu, Guanzhong Peng","doi":"10.1109/POWERENG.2009.4915242","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915242","url":null,"abstract":"In this paper the ZGT (zonal guarantee technology), which has been introduced in the companion paper, is applied to the deep-buried underground engineering. Then, four novel ventilation and cooling systems for the underground diesel generator plant are presented. The optimization of the location of the fume exactor and exhaust duct and the speed of the supply air is done by the CFD simulation for one of the ventilation and cooling system. The results show that the ZGT could remove the residual heat and contaminant effectively. It is also advised that the form 1, in which the heated air is exhausted by both sides of the duct and the fume exactor locates on the lower right of the duct, may be the most effective one. According to the numerical experiment, the temperature and the velocity profile are controlled strictly when the speed of supply air is 0.8m/s.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129087008","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915147
S. Srikanthan, M. Mishra, B. K. Kumar, K. S. Bhaskar
Multilevel neutral point clamped inverter systems are increasingly used in load compensation applications. But, the most significant problem associated with these compensators is the capacitor voltage imbalances and drift due to dc components in the zero sequence current, resulting in degradation of tracking performance of the voltage source inverter. This paper proposes a carrier based PWM control for an inverter-chopper circuit in order to regulate the capacitor voltages to their reference values. To demonstrate the simplicity and effectiveness of the above control scheme, a three-phase four-wire, three-level neutral point clamped compensator system is taken as an example. Detailed simulation has been carried out in PSCAD 4.2.1. Experiments are conducted to validate the proposed control scheme.
{"title":"Capacitor voltage balancing in neutral clamped inverters for DSTATCOM application","authors":"S. Srikanthan, M. Mishra, B. K. Kumar, K. S. Bhaskar","doi":"10.1109/POWERENG.2009.4915147","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915147","url":null,"abstract":"Multilevel neutral point clamped inverter systems are increasingly used in load compensation applications. But, the most significant problem associated with these compensators is the capacitor voltage imbalances and drift due to dc components in the zero sequence current, resulting in degradation of tracking performance of the voltage source inverter. This paper proposes a carrier based PWM control for an inverter-chopper circuit in order to regulate the capacitor voltages to their reference values. To demonstrate the simplicity and effectiveness of the above control scheme, a three-phase four-wire, three-level neutral point clamped compensator system is taken as an example. Detailed simulation has been carried out in PSCAD 4.2.1. Experiments are conducted to validate the proposed control scheme.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117088611","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915257
A. Cordeiro, D. Foito, M. Guerreiro
Several didactic modules for an electric machinery laboratory are presented. The modules are dedicated for DC machinery control and get their characteristic curves. The didactic modules have a front panel with power and signal connectors and can be configurable for any DC motor type. The three-phase bridge inverter proposed is one of the most popular topologies and is commercially available in power package modules. The control techniques and power drives were designed to satisfy static and dynamic performance of DC machines. Each power section is internally self-protected against misconnections and short-circuits. Isolated output signals of current and voltage measurements are also provided, adding versatility for use either in didactic or research applications. The implementation of such modules allowed experimental confirmation of the expected performance.
{"title":"Power electronics didactic modules for direct current machine control","authors":"A. Cordeiro, D. Foito, M. Guerreiro","doi":"10.1109/POWERENG.2009.4915257","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915257","url":null,"abstract":"Several didactic modules for an electric machinery laboratory are presented. The modules are dedicated for DC machinery control and get their characteristic curves. The didactic modules have a front panel with power and signal connectors and can be configurable for any DC motor type. The three-phase bridge inverter proposed is one of the most popular topologies and is commercially available in power package modules. The control techniques and power drives were designed to satisfy static and dynamic performance of DC machines. Each power section is internally self-protected against misconnections and short-circuits. Isolated output signals of current and voltage measurements are also provided, adding versatility for use either in didactic or research applications. The implementation of such modules allowed experimental confirmation of the expected performance.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121134637","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915148
E. Rahimpour, M. Bigdeli
Various models have been presented for evaluation and study of transformers, but a model including all the following properties has not been given in literature by now: 1- The parameters of the model can be calculated through geometrical dimensions, so investigation of a fault effect on the model is possible and it needs no costly measurements. 2- The accuracy of the model in the medium transient frequency domain is satisfactory. 3- The model is simple, so simulation of this model is easy and fast. 4- It is feasible to use the model as a two-port element in network analysis. Such a model is proposed in this paper as simplified transient model (STM). Accuracy and validity of the model is verified using a 2.5 MVA and 6300/420 V three-phase transformer as a test object. This transformer consists of a disk-type high-voltage winding and a layer-type low-voltage winding. Finally, analysis of some important faults in transformers using this model is discussed.
{"title":"Simplified transient model of transformer based on geometrical dimensions used in power network analysis and fault detection studies","authors":"E. Rahimpour, M. Bigdeli","doi":"10.1109/POWERENG.2009.4915148","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915148","url":null,"abstract":"Various models have been presented for evaluation and study of transformers, but a model including all the following properties has not been given in literature by now: 1- The parameters of the model can be calculated through geometrical dimensions, so investigation of a fault effect on the model is possible and it needs no costly measurements. 2- The accuracy of the model in the medium transient frequency domain is satisfactory. 3- The model is simple, so simulation of this model is easy and fast. 4- It is feasible to use the model as a two-port element in network analysis. Such a model is proposed in this paper as simplified transient model (STM). Accuracy and validity of the model is verified using a 2.5 MVA and 6300/420 V three-phase transformer as a test object. This transformer consists of a disk-type high-voltage winding and a layer-type low-voltage winding. Finally, analysis of some important faults in transformers using this model is discussed.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115772085","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915186
E. Rakhshani, Iman Sariri, K. Rouzbehi
This paper tries to present a new applied method on detection and prediction of faults for the boiler's burner system of power plant with using data mining and artificial neural network. Boiler/Steam turbine is important equipments in the industry, especially in the electric power industry. Because of the complexity of burner management systems and particularity of its running environment, the fault rate of boiler's burner system is high. So the fault prediction is a difficult problem. The proposed approach includes data mining, data preprocessing i.e. data reduction, data clustering; learning and prediction by artificial neural networks. Boiler/turbine units constitute a critical component of a co-generation system. The operative parameters in boiler's burner system are measured and are characterized to obtain a set of descriptors. These sets are analyzed by data mining approach. Next, these preprocessed data are used as input data of two neural networks which detect and predict the faults in a boiler of power plant. Multiplayer back propagation neural network with four hidden layers, as one of the steps in data mining process is studied. The knowledge extracted by this data mining algorithm is an important component of an intelligent alarm system. Furthermore, using this method is more valuable for the further study.
{"title":"Application of data mining on fault detection and prediction in Boiler of power plant using artificial neural network","authors":"E. Rakhshani, Iman Sariri, K. Rouzbehi","doi":"10.1109/POWERENG.2009.4915186","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915186","url":null,"abstract":"This paper tries to present a new applied method on detection and prediction of faults for the boiler's burner system of power plant with using data mining and artificial neural network. Boiler/Steam turbine is important equipments in the industry, especially in the electric power industry. Because of the complexity of burner management systems and particularity of its running environment, the fault rate of boiler's burner system is high. So the fault prediction is a difficult problem. The proposed approach includes data mining, data preprocessing i.e. data reduction, data clustering; learning and prediction by artificial neural networks. Boiler/turbine units constitute a critical component of a co-generation system. The operative parameters in boiler's burner system are measured and are characterized to obtain a set of descriptors. These sets are analyzed by data mining approach. Next, these preprocessed data are used as input data of two neural networks which detect and predict the faults in a boiler of power plant. Multiplayer back propagation neural network with four hidden layers, as one of the steps in data mining process is studied. The knowledge extracted by this data mining algorithm is an important component of an intelligent alarm system. Furthermore, using this method is more valuable for the further study.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125915854","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 : 2009-03-18DOI: 10.1109/POWERENG.2009.4915177
P. Lefranc, E. Godoy, G. Duc, M. Iftikhar
This paper presents stability analysis of a Buck converter based on an LPV (Linear Parameter-Varying) approach. Theoretical stability analysis of DC-DC converters is not so easy especially with wide variations of input voltage and load. Authors propose a theoretical method that can be used by converter designers. A nonlinear model of buck converter is proposed to achieve stability analysis. The main control law is based on a state-feedback. The input voltage and load power variations are specified in ranges and variations can be as fast as possible. LPV analysis of a PI-feedback and a state-feedback are compared to show drawbacks of conventional PI-feedback. Simulation results are presented to verify stability analysis. They are based on two model levels: a nonlinear averaged model and a switched model.
{"title":"Stability analysis of a Buck converter with input filter based on an LPV formalism","authors":"P. Lefranc, E. Godoy, G. Duc, M. Iftikhar","doi":"10.1109/POWERENG.2009.4915177","DOIUrl":"https://doi.org/10.1109/POWERENG.2009.4915177","url":null,"abstract":"This paper presents stability analysis of a Buck converter based on an LPV (Linear Parameter-Varying) approach. Theoretical stability analysis of DC-DC converters is not so easy especially with wide variations of input voltage and load. Authors propose a theoretical method that can be used by converter designers. A nonlinear model of buck converter is proposed to achieve stability analysis. The main control law is based on a state-feedback. The input voltage and load power variations are specified in ranges and variations can be as fast as possible. LPV analysis of a PI-feedback and a state-feedback are compared to show drawbacks of conventional PI-feedback. Simulation results are presented to verify stability analysis. They are based on two model levels: a nonlinear averaged model and a switched model.","PeriodicalId":246039,"journal":{"name":"2009 International Conference on Power Engineering, Energy and Electrical Drives","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134230733","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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