Pub Date : 2014-09-29DOI: 10.1109/EPE.2014.6910743
Michael Gleissner, M. Bakran
The failure characteristics of power semiconductors determine necessary protection elements and fault-tolerance of the total system. To obtain information on failure characteristics, several low voltage power MOSFETs with different packages, manufacturers and voltage ratings are deliberately destroyed by exceeding the electrical parameters gate- and drain-source voltage. Furthermore, the stability of MOSFETs during a capacitor discharging depending on the amount of stored energy is investigated, which is necessary for successful level reduction in multilevel converters. The research focuses on the device behaviour after failure depending on the package technology to give a design hint for fault-tolerant applications.
{"title":"Failure characteristics of discrete power semiconductor packages exceeding electrical specifications","authors":"Michael Gleissner, M. Bakran","doi":"10.1109/EPE.2014.6910743","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910743","url":null,"abstract":"The failure characteristics of power semiconductors determine necessary protection elements and fault-tolerance of the total system. To obtain information on failure characteristics, several low voltage power MOSFETs with different packages, manufacturers and voltage ratings are deliberately destroyed by exceeding the electrical parameters gate- and drain-source voltage. Furthermore, the stability of MOSFETs during a capacitor discharging depending on the amount of stored energy is investigated, which is necessary for successful level reduction in multilevel converters. The research focuses on the device behaviour after failure depending on the package technology to give a design hint for fault-tolerant applications.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"9 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73436377","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910988
J. Tamminen, T. Ahonen, A. Kosonen, J. Ahola, J. Tolvanen
Circulation pumping systems hold energy savings potential, which can be seized with intelligent control. In this paper, a novel variable speed drive based method for minimizing the required pump pressure of a pumping system that has individual branch flow control elements is introduced. The method can be used to save energy for example in central heating circulation applications. Moreover, the presented method is purely software-based and can be implemented using a variable speed drive. The operation of the method was verified with simulations and a laboratory test setup and compared with proportional pressure control.
{"title":"Variable speed drive-based pressure optimization of a pumping system comprising individual branch flow control elements","authors":"J. Tamminen, T. Ahonen, A. Kosonen, J. Ahola, J. Tolvanen","doi":"10.1109/EPE.2014.6910988","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910988","url":null,"abstract":"Circulation pumping systems hold energy savings potential, which can be seized with intelligent control. In this paper, a novel variable speed drive based method for minimizing the required pump pressure of a pumping system that has individual branch flow control elements is introduced. The method can be used to save energy for example in central heating circulation applications. Moreover, the presented method is purely software-based and can be implemented using a variable speed drive. The operation of the method was verified with simulations and a laboratory test setup and compared with proportional pressure control.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"32 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74738739","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910931
A. Gkountaras, C. Dinca, A. Giedymin, P. Birgel, U. Schaefer, S. Dieckerhoff
This paper presents an electrical drive designed for an electrical active suspension system with motor, pump wheel and power electronics integrated in the same housing, sharing the same cooling method. The proposed drive is designed for the new 48V automotive standard for auxiliary drives having a maximum load of 2.5kW. The necessary mechanical and electrical requirements for the complete drive are documented. Design guidelines are presented for the integrated power electronics and motor drive and verified through experimental results. Thermal simulations are conducted to support the thermal design of the system.
{"title":"Low cost integrated motor-controller drive for an electrical active suspension system","authors":"A. Gkountaras, C. Dinca, A. Giedymin, P. Birgel, U. Schaefer, S. Dieckerhoff","doi":"10.1109/EPE.2014.6910931","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910931","url":null,"abstract":"This paper presents an electrical drive designed for an electrical active suspension system with motor, pump wheel and power electronics integrated in the same housing, sharing the same cooling method. The proposed drive is designed for the new 48V automotive standard for auxiliary drives having a maximum load of 2.5kW. The necessary mechanical and electrical requirements for the complete drive are documented. Design guidelines are presented for the integrated power electronics and motor drive and verified through experimental results. Thermal simulations are conducted to support the thermal design of the system.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"32 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76475791","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910849
J. Mon, D. González, Cirylle Gautier, D. Labrousse, F. Costa
The Coupled Interleaved Multicellular Parallel (CIMP) topology is the subject of intense research because of its advantages in terms of systems integration, power density increase, low level of EMI emissions and dynamic performance. This paper evaluates the viability of application of switching frequency modulation techniques to CIMP topology.
{"title":"Coupled Interleaved Multicellular Parallel converters operated under switching frequency modulation","authors":"J. Mon, D. González, Cirylle Gautier, D. Labrousse, F. Costa","doi":"10.1109/EPE.2014.6910849","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910849","url":null,"abstract":"The Coupled Interleaved Multicellular Parallel (CIMP) topology is the subject of intense research because of its advantages in terms of systems integration, power density increase, low level of EMI emissions and dynamic performance. This paper evaluates the viability of application of switching frequency modulation techniques to CIMP topology.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"24 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81612935","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910956
R. Jastrzebski, Daria Matusiak, T. Sillanpaa, A. Romanenko, P. Jaatinen, K. Tolsa, T. Lindh, O. Pyrhonen
This work presents the compact radial-axial 3D PCB capacitive position sensor. The FEM model, numerical analysis and prototype verification are presented. The capacitances of circuit are estimated using 3D model and are verified based on spectral analysis. The open and closed-loop measurements prove feasibility in applications related to rotating machinery.
{"title":"Modelling and evaluation of radial-axial PCB capacitive position sensor prototype","authors":"R. Jastrzebski, Daria Matusiak, T. Sillanpaa, A. Romanenko, P. Jaatinen, K. Tolsa, T. Lindh, O. Pyrhonen","doi":"10.1109/EPE.2014.6910956","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910956","url":null,"abstract":"This work presents the compact radial-axial 3D PCB capacitive position sensor. The FEM model, numerical analysis and prototype verification are presented. The capacitances of circuit are estimated using 3D model and are verified based on spectral analysis. The open and closed-loop measurements prove feasibility in applications related to rotating machinery.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"43 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86022934","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910980
Maude-Josée Blondin, P. Sicard
Nonlinear controller tuning with anti-windup is not trivial since the parameters within the structure are interdependent. A global optimization-based tuning approach can handle this interdependence. A hybrid Ant Colony Optimization (ACO) and Nelder-Mead (NM) algorithm for controller and anti-windup tuning efficiently solves this problem. This paper proposes a new way to constrain ACO-NM algorithm to ensure positivity of key parameters in order to avoid searches in instability or low robustness regions and to improve computation time to reach an optimal solution.
{"title":"A Hybrid ACO and Nelder-Mead constrained algorithm for controller and anti-windup tuning","authors":"Maude-Josée Blondin, P. Sicard","doi":"10.1109/EPE.2014.6910980","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910980","url":null,"abstract":"Nonlinear controller tuning with anti-windup is not trivial since the parameters within the structure are interdependent. A global optimization-based tuning approach can handle this interdependence. A hybrid Ant Colony Optimization (ACO) and Nelder-Mead (NM) algorithm for controller and anti-windup tuning efficiently solves this problem. This paper proposes a new way to constrain ACO-NM algorithm to ensure positivity of key parameters in order to avoid searches in instability or low robustness regions and to improve computation time to reach an optimal solution.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"97 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81246499","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910817
Xiaobo Yang, Chunming Yuan, D. Yao, Chao Yang, Chengyan Yue
Multiterminal high voltage direct current (MTDC) system can be either a series type or a parallel type. Series MTDC concept is essentially developed from the two-terminal HVDC but with some unique characteristics. In this paper, the AC fault ride through capability of series MTDC is discussed. AC faults at inverter stations, which are connected to electrically separated AC systems, will be highlighted. For an AC fault that happens at one inverter station, the DC voltage of that station may decrease to zero due to commutation failure, while the other inverter stations (the healthy inverters) can still retain power transmission capability to some extent, which will increase the availability of the series MTDC system. However, the current controller design, the voltage dependent current order limiter (VDCOL) logic and the AC system strength will impact on the dynamic performance of series MTDC during AC faults. In this paper, a + 800kV/3.2GW 4-terminal line commutated converter (LCC) based series MTDC model is established to study the dynamic performance when AC faults occur at an inverter. The controller of the series MTDC is designed; the VDCOL logic for series MTDC is developed; simulation results of the dynamic performance during AC faults at the inverter stations are presented.
{"title":"Dynamic performance of series multiterminal HVDC during AC faults at inverter stations","authors":"Xiaobo Yang, Chunming Yuan, D. Yao, Chao Yang, Chengyan Yue","doi":"10.1109/EPE.2014.6910817","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910817","url":null,"abstract":"Multiterminal high voltage direct current (MTDC) system can be either a series type or a parallel type. Series MTDC concept is essentially developed from the two-terminal HVDC but with some unique characteristics. In this paper, the AC fault ride through capability of series MTDC is discussed. AC faults at inverter stations, which are connected to electrically separated AC systems, will be highlighted. For an AC fault that happens at one inverter station, the DC voltage of that station may decrease to zero due to commutation failure, while the other inverter stations (the healthy inverters) can still retain power transmission capability to some extent, which will increase the availability of the series MTDC system. However, the current controller design, the voltage dependent current order limiter (VDCOL) logic and the AC system strength will impact on the dynamic performance of series MTDC during AC faults. In this paper, a + 800kV/3.2GW 4-terminal line commutated converter (LCC) based series MTDC model is established to study the dynamic performance when AC faults occur at an inverter. The controller of the series MTDC is designed; the VDCOL logic for series MTDC is developed; simulation results of the dynamic performance during AC faults at the inverter stations are presented.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"115 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77916728","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910697
J. Aguillon-Garcia, P. Bañuelos-Sánchez
It is known that, the energy extracted from photovoltaic (PV) panels oscillates in magnitude during the light-day interval. In addition, an ideal location of PV systems involves the awareness of solar supply characteristics in order to establish a better use of this resource. In the solar energy systems this solar irradiance variation is partially engaged, limiting the converter's transformation rate for a certain input amount and leaving the rest of energy unconverted. This lends a restricted use of photovoltaic panel's energy capability. In order to utilize at its maximum the energy provided from a PV system, this manuscript proposes a topology that can cope with marginal input voltage variations from 60VDC up to 1050VDC for a steady output voltage of 700VDC. This output voltage value is suitable for any interlink post-regulation architecture. Based on previous observations, this paper presents a wide-input voltage high-efficiency non-isolated single-control topology. Analysis, operating stages and experimental results for a 3kW prototype are presented.
{"title":"Large input-voltage range DC-DC converter for high-efficiency PV applications","authors":"J. Aguillon-Garcia, P. Bañuelos-Sánchez","doi":"10.1109/EPE.2014.6910697","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910697","url":null,"abstract":"It is known that, the energy extracted from photovoltaic (PV) panels oscillates in magnitude during the light-day interval. In addition, an ideal location of PV systems involves the awareness of solar supply characteristics in order to establish a better use of this resource. In the solar energy systems this solar irradiance variation is partially engaged, limiting the converter's transformation rate for a certain input amount and leaving the rest of energy unconverted. This lends a restricted use of photovoltaic panel's energy capability. In order to utilize at its maximum the energy provided from a PV system, this manuscript proposes a topology that can cope with marginal input voltage variations from 60VDC up to 1050VDC for a steady output voltage of 700VDC. This output voltage value is suitable for any interlink post-regulation architecture. Based on previous observations, this paper presents a wide-input voltage high-efficiency non-isolated single-control topology. Analysis, operating stages and experimental results for a 3kW prototype are presented.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"14 1 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78030285","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910749
Feiyue Duan, Ming Xu, Xu Yang, Yuan Yao
Constant current control is a difficult issue for LLC resonant converter due to its variable frequency operation. After detailed analysis on the short circuit operation of conventional LLC DC-DC converter, a novel current-limiting method with the help of diode clamping is proposed. Against the conventional wisdom, the switching frequency is reduced toward zero to control the output current under over-load and short circuit condition ultimately. By doing so, the ultra-high frequency operation can be avoided for current-limiting at short circuit. A 480W 12V/40A prototype with proposed concept has been built to verify the theoretical analysis.
{"title":"A novel current-limiting method for LLC DC/DC resonant converter","authors":"Feiyue Duan, Ming Xu, Xu Yang, Yuan Yao","doi":"10.1109/EPE.2014.6910749","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910749","url":null,"abstract":"Constant current control is a difficult issue for LLC resonant converter due to its variable frequency operation. After detailed analysis on the short circuit operation of conventional LLC DC-DC converter, a novel current-limiting method with the help of diode clamping is proposed. Against the conventional wisdom, the switching frequency is reduced toward zero to control the output current under over-load and short circuit condition ultimately. By doing so, the ultra-high frequency operation can be avoided for current-limiting at short circuit. A 480W 12V/40A prototype with proposed concept has been built to verify the theoretical analysis.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"100 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76796920","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 : 2014-09-29DOI: 10.1109/EPE.2014.6910703
A. Zabasta, E. Casaliccio, N. Kuņicina, L. Ribickis
Critical infrastructure's (CI) (electricity, heat, water, information and communication technology networks) security, stability and reliability are closely related to the interaction phenomenon. Due to the increasing amount of data transferred, increases dependence on telecommunications and internet services, the data integrity and security is becoming a very important aspect for the utility services providers and energy suppliers. In such circumstances, the need is increasing for methods and tools that enable infrastructure managers to evaluate and predict their critical infrastructure operations as the failures, emergency or service degradation occur in other related infrastructures. Using a simulation model, is experimentally tested a method that allows to explore the water supply network nodes the average down time dependence on the battery life time and the battery replacement time cross-correlations, within the parameters set, when outages in power infrastructure arise and taking into account also the impact of telecommunication nodes. The model studies the real case of Latvian city Ventspils. The proposed approach for the analysis of critical infrastructures interdependencies will be useful for practical adoption of methods, models and metrics for CI operators and stakeholders.
{"title":"A numerical model for evaluation power outages impact on water infrastructure services sustainability","authors":"A. Zabasta, E. Casaliccio, N. Kuņicina, L. Ribickis","doi":"10.1109/EPE.2014.6910703","DOIUrl":"https://doi.org/10.1109/EPE.2014.6910703","url":null,"abstract":"Critical infrastructure's (CI) (electricity, heat, water, information and communication technology networks) security, stability and reliability are closely related to the interaction phenomenon. Due to the increasing amount of data transferred, increases dependence on telecommunications and internet services, the data integrity and security is becoming a very important aspect for the utility services providers and energy suppliers. In such circumstances, the need is increasing for methods and tools that enable infrastructure managers to evaluate and predict their critical infrastructure operations as the failures, emergency or service degradation occur in other related infrastructures. Using a simulation model, is experimentally tested a method that allows to explore the water supply network nodes the average down time dependence on the battery life time and the battery replacement time cross-correlations, within the parameters set, when outages in power infrastructure arise and taking into account also the impact of telecommunication nodes. The model studies the real case of Latvian city Ventspils. The proposed approach for the analysis of critical infrastructures interdependencies will be useful for practical adoption of methods, models and metrics for CI operators and stakeholders.","PeriodicalId":6508,"journal":{"name":"2014 16th European Conference on Power Electronics and Applications","volume":"15 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2014-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81868235","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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