Pub Date : 2014-11-01DOI: 10.1109/PEAC.2014.7037838
Zhaoyang Yan, Hongyan He, Jianxia Li, M. Su, Chunjiang Zhang
Under unbalanced grid voltage conditions, negative-sequence will generate the double fundamental frequency in the dq synchronous rotating reference frame. In order to detect the positive-sequence component of the grid voltages fast, this paper proposes a new phase-locked loop method, called double fundamental frequency phase-locked loop (DFF-PLL). The operation principle is analyzed, giving the extract formulas of the positive- and negative-sequence with double fundamental frequency, the process of DFF-PLL and the detection of positive-sequence component of grid voltages. The paper improves the second order generalized integrator quadrature-signals generation (SOGI-QSG), in order to remove the DC bias voltage and guarantee the orthogonality of SOGI-QSG. The performance of DFF-PLL is verified by using simulation and experimental results. Compared with DSOGI-PLL, this method increases the detection speed and accuracy under unbalanced grid voltage conditions.
{"title":"Double fundamental frequency PLL with second order generalized integrator under unbalanced grid voltages","authors":"Zhaoyang Yan, Hongyan He, Jianxia Li, M. Su, Chunjiang Zhang","doi":"10.1109/PEAC.2014.7037838","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037838","url":null,"abstract":"Under unbalanced grid voltage conditions, negative-sequence will generate the double fundamental frequency in the dq synchronous rotating reference frame. In order to detect the positive-sequence component of the grid voltages fast, this paper proposes a new phase-locked loop method, called double fundamental frequency phase-locked loop (DFF-PLL). The operation principle is analyzed, giving the extract formulas of the positive- and negative-sequence with double fundamental frequency, the process of DFF-PLL and the detection of positive-sequence component of grid voltages. The paper improves the second order generalized integrator quadrature-signals generation (SOGI-QSG), in order to remove the DC bias voltage and guarantee the orthogonality of SOGI-QSG. The performance of DFF-PLL is verified by using simulation and experimental results. Compared with DSOGI-PLL, this method increases the detection speed and accuracy under unbalanced grid voltage conditions.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123024899","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037891
Jiaju Wu, Hongjun Shi, Hangli Hu, Bin Liu
As an example of push-pull SPWM inverter, this paper presents a mathematical model of the push-pull transformer, considers the on-off status of switching devices and discusses the time and space characteristics of the dynamic and effective leakage inductance which means that the leakage inductance within primary/secondary windings of the push-pull transformer has the action time and associated winding in the different situations. Moreover, it clarifies the relationship among the action time, associated winding and the direction of the energy flow within windings. The simulation results are verified by comparison with mathematical analysis. Experimental measurements show a close agreement with the simulation results as well.
{"title":"A new method of modeling and simulation for push-pull SPWM inverter","authors":"Jiaju Wu, Hongjun Shi, Hangli Hu, Bin Liu","doi":"10.1109/PEAC.2014.7037891","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037891","url":null,"abstract":"As an example of push-pull SPWM inverter, this paper presents a mathematical model of the push-pull transformer, considers the on-off status of switching devices and discusses the time and space characteristics of the dynamic and effective leakage inductance which means that the leakage inductance within primary/secondary windings of the push-pull transformer has the action time and associated winding in the different situations. Moreover, it clarifies the relationship among the action time, associated winding and the direction of the energy flow within windings. The simulation results are verified by comparison with mathematical analysis. Experimental measurements show a close agreement with the simulation results as well.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"81 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131133561","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}
In general, Boost circuit is widely used as PFC circuit to achieve high power factor (PF), but the power supply needs to add a Buck circuit in the case of low-voltage output applications. Two-stage circuit requires more components and two control circuits. On the other hand, as the power levels increase, the full-bridge diode rectifier reduces the converter efficiency due to the large conduction losses. This paper presents a novel single-stage (SS) bridgeless Boost&Buck circuit. Boost circuit serves as a PFC stage and Buck as a DC/DC stage. Bridgeless structure can reduce conduction losses effectively, and improve the efficiency of the converter in low-input voltage & high-input current conditions. The proposed DCM + CCM control strategy is used to achieve high PF, high efficiency and step-down capabilities. At last, a prototype with 85~135Vrms input and 75Vdc/150W output was set up to verify the theoretical analysis.
{"title":"A novel single-stage bridgeless Boost&Buck PFC converter","authors":"Qingliang Zheng, Weiming Lin, Shengjian Liu, Nanbing Wu","doi":"10.1109/PEAC.2014.7037945","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037945","url":null,"abstract":"In general, Boost circuit is widely used as PFC circuit to achieve high power factor (PF), but the power supply needs to add a Buck circuit in the case of low-voltage output applications. Two-stage circuit requires more components and two control circuits. On the other hand, as the power levels increase, the full-bridge diode rectifier reduces the converter efficiency due to the large conduction losses. This paper presents a novel single-stage (SS) bridgeless Boost&Buck circuit. Boost circuit serves as a PFC stage and Buck as a DC/DC stage. Bridgeless structure can reduce conduction losses effectively, and improve the efficiency of the converter in low-input voltage & high-input current conditions. The proposed DCM + CCM control strategy is used to achieve high PF, high efficiency and step-down capabilities. At last, a prototype with 85~135Vrms input and 75Vdc/150W output was set up to verify the theoretical analysis.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115159383","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037841
Wei Qin, Bo Zhu, Xu Zhang, Xinke Wu
In this paper, a current-feed resonant two-switch forward DC-DC Transformer (DCX) is proposed for high-efficiency and high-density unregulated bus converter applications. With a resonant capacitor in series with the leakage inductance of the transformer, ZCS turn-on and nearly ZCS turn-off can be achieved for the primary switches and there is no body diode and reverse recovery losses in the SR. Meanwhile, the magnetizing current is used to achieve ZVS turn-off for the primary switches. The circuit operating principle and design considerations are discussed. An 110W prototype is built up to verify the theoretical analysis.
{"title":"A novel current-feed soft-switching two-switch forward resonant DC-DC Transformer (DCX)","authors":"Wei Qin, Bo Zhu, Xu Zhang, Xinke Wu","doi":"10.1109/PEAC.2014.7037841","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037841","url":null,"abstract":"In this paper, a current-feed resonant two-switch forward DC-DC Transformer (DCX) is proposed for high-efficiency and high-density unregulated bus converter applications. With a resonant capacitor in series with the leakage inductance of the transformer, ZCS turn-on and nearly ZCS turn-off can be achieved for the primary switches and there is no body diode and reverse recovery losses in the SR. Meanwhile, the magnetizing current is used to achieve ZVS turn-off for the primary switches. The circuit operating principle and design considerations are discussed. An 110W prototype is built up to verify the theoretical analysis.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134026605","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037964
Biao Liang, G. Zhu, Xiaobin Fu, Wei-Xing Liu, Hao-Ran Wang
The DC current of the single-phase inverter or rectifier contains low frequency ripple whose frequency is twice that of the AC voltage. Traditionally, electrolytic capacitor is used to eliminate these ripple, but it has relatively short lifespan and affect the lifetime of the entire inverter or rectifier system. In this paper, a single-phase bidirectional bridge topology without electrolytic capacitor is presented. The bidirectional topology combines a conventional converter and a pair of additional switches. In addition, the bidirectional bridge topology can control the pulsation power at the ac side due to the two differential capacitors, which is produced by splitting the AC filter capacitor of the conventional inverter or rectifier symmetrically. The DC current ripple of the bridge converter can be significantly reduced without the electrolytic capacitors (E-Cap). Theoretical analysis and results are provided to explain the operation and showcase the performance of the bidirectional bridge topology. All the experimental results are provided to support the feasibility of the proposed work.
{"title":"Single-phase bidirectional bridge topology without electrolytic capacitor at the DC side","authors":"Biao Liang, G. Zhu, Xiaobin Fu, Wei-Xing Liu, Hao-Ran Wang","doi":"10.1109/PEAC.2014.7037964","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037964","url":null,"abstract":"The DC current of the single-phase inverter or rectifier contains low frequency ripple whose frequency is twice that of the AC voltage. Traditionally, electrolytic capacitor is used to eliminate these ripple, but it has relatively short lifespan and affect the lifetime of the entire inverter or rectifier system. In this paper, a single-phase bidirectional bridge topology without electrolytic capacitor is presented. The bidirectional topology combines a conventional converter and a pair of additional switches. In addition, the bidirectional bridge topology can control the pulsation power at the ac side due to the two differential capacitors, which is produced by splitting the AC filter capacitor of the conventional inverter or rectifier symmetrically. The DC current ripple of the bridge converter can be significantly reduced without the electrolytic capacitors (E-Cap). Theoretical analysis and results are provided to explain the operation and showcase the performance of the bidirectional bridge topology. All the experimental results are provided to support the feasibility of the proposed work.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131985836","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037948
Feng-wu Zhou, Huipin Lin, Jin Hu, Zhengyu Lv, Bin Qian, Jun Xu
Series-connected lithium batteries can be charged in pack mode that is most widely used in lithium battery application field. But pack charging mode will lead to cell unbalanced charging because of cell differences among series-connected batteries in electrochemical characteristic. On the other hand, the cell charging mode can avoid the imbalance problem by charging each cell independently as a result of reducing the charge efficiency and raising the cost. In this paper, a novel balancing strategy is proposed with pack charging mode and cell charging mode mixed to implement balancing algorithm. The proposed balancing system is based on the distributed power supply technology and the power bus technology. A DC voltage bus and an AC quasi-square wave voltage bus are built by relevant converters. The proposed method aims to solve the problem of charge imbalance with simple balancing algorithm and make the charge efficiency stay as high as possible.
{"title":"A novel balancing strategy for series-connected lithium batteries based on mixed charging mode","authors":"Feng-wu Zhou, Huipin Lin, Jin Hu, Zhengyu Lv, Bin Qian, Jun Xu","doi":"10.1109/PEAC.2014.7037948","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037948","url":null,"abstract":"Series-connected lithium batteries can be charged in pack mode that is most widely used in lithium battery application field. But pack charging mode will lead to cell unbalanced charging because of cell differences among series-connected batteries in electrochemical characteristic. On the other hand, the cell charging mode can avoid the imbalance problem by charging each cell independently as a result of reducing the charge efficiency and raising the cost. In this paper, a novel balancing strategy is proposed with pack charging mode and cell charging mode mixed to implement balancing algorithm. The proposed balancing system is based on the distributed power supply technology and the power bus technology. A DC voltage bus and an AC quasi-square wave voltage bus are built by relevant converters. The proposed method aims to solve the problem of charge imbalance with simple balancing algorithm and make the charge efficiency stay as high as possible.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130299497","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037934
Jinsong Kang, Shoujian Yang, W. Xia, Shuo Wang
Inverter control technology is the core technology of Photovoltaic power generation system. In this paper, an improved deadbeat control strategy for Photovoltaic grid-connected inverter was proposed and implemented in TMS320F2812 system. DC input voltage, output current and grid voltage are introduced in the improved deadbeat control strategy for getting the duty value, which is used to control the power switch by unipolar & frequency multiplication SPWM. The improved control strategy can effectively restrain the influence of DC input voltage and power fluctuation on grid and the whole system. The inverter output waveforms have high quality and low harmonic component. The results of simulation and experiment have proved the validity and practicability of this improved control strategy.
{"title":"An improved deadbeat control strategy for photovoltaic grid-connected inverter based on unipolar & frequency multiplication SPWM and its implementation","authors":"Jinsong Kang, Shoujian Yang, W. Xia, Shuo Wang","doi":"10.1109/PEAC.2014.7037934","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037934","url":null,"abstract":"Inverter control technology is the core technology of Photovoltaic power generation system. In this paper, an improved deadbeat control strategy for Photovoltaic grid-connected inverter was proposed and implemented in TMS320F2812 system. DC input voltage, output current and grid voltage are introduced in the improved deadbeat control strategy for getting the duty value, which is used to control the power switch by unipolar & frequency multiplication SPWM. The improved control strategy can effectively restrain the influence of DC input voltage and power fluctuation on grid and the whole system. The inverter output waveforms have high quality and low harmonic component. The results of simulation and experiment have proved the validity and practicability of this improved control strategy.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134243356","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7038013
Fan Xie, Bo Zhang, D. Qiu
In this paper, a simple control method is presented to stabilize the nonlinear dynamic behavior of LLC resonance full-bridge DC-DC converter under voltage mode control based on the conventional delay time feedback, resonant parametric perturbation and self-stable control methods. First, the mathematical model of LLC resonance full-bridge DC-DC converter under voltage mode control are built. Second, the dynamic behaviors of the system is analyzed and the system is lost stability by border collision and Neimark-Saker bifurcation. Finally, the simple controller is introduced by sampling the primary inductor current of the transformer, and then the simulation results show that the dynamic behaviors can be stabilized by this controller.
{"title":"Stabilizing the Nonlinear Dynamic Behavior of LLC Resonance Full-Bridge DC-DC Converter Under Voltage Mode Control","authors":"Fan Xie, Bo Zhang, D. Qiu","doi":"10.1109/PEAC.2014.7038013","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7038013","url":null,"abstract":"In this paper, a simple control method is presented to stabilize the nonlinear dynamic behavior of LLC resonance full-bridge DC-DC converter under voltage mode control based on the conventional delay time feedback, resonant parametric perturbation and self-stable control methods. First, the mathematical model of LLC resonance full-bridge DC-DC converter under voltage mode control are built. Second, the dynamic behaviors of the system is analyzed and the system is lost stability by border collision and Neimark-Saker bifurcation. Finally, the simple controller is introduced by sampling the primary inductor current of the transformer, and then the simulation results show that the dynamic behaviors can be stabilized by this controller.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134007471","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037818
Duo Xu, Yaping Cai, Zhangyong Chen, Shu Zhong
A novel two winding coupled-inductor step-up gain boost-flyback converter is proposed in this paper. The proposed converter consists of a boost cell and a flyback cell, with a two winding coupled-inductor to achieve high step-up voltage gain at reasonable duty ratio. The voltage gain of the proposed converter is improved with input-parallel output-series of two windings of coupled-inductor. The operating principle and steady state characteristic of the proposed converter is analyzed. Finally, a 110W, 25V input, 200V output prototype has been built to verify the theoretical analysis results.
{"title":"A novel two winding coupled-inductor step-up voltage gain boost-flyback converter","authors":"Duo Xu, Yaping Cai, Zhangyong Chen, Shu Zhong","doi":"10.1109/PEAC.2014.7037818","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037818","url":null,"abstract":"A novel two winding coupled-inductor step-up gain boost-flyback converter is proposed in this paper. The proposed converter consists of a boost cell and a flyback cell, with a two winding coupled-inductor to achieve high step-up voltage gain at reasonable duty ratio. The voltage gain of the proposed converter is improved with input-parallel output-series of two windings of coupled-inductor. The operating principle and steady state characteristic of the proposed converter is analyzed. Finally, a 110W, 25V input, 200V output prototype has been built to verify the theoretical analysis results.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"57 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134529519","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7037827
Gaoxian Li, Xiong Du, Pengju Sun, Luowei Zhou, H. Tai
Power converters are crucial components of the wind turbine generator system (WTGS), and the reliability of wind power converters is susceptible to power fluctuations of the WTGS. The accurate lifetime estimation of power semiconductors should consider the long-time mission profiles of the WTGS. However, the existing junction temperature calculation methods don't meet the requirement for performance of accuracy and speed. Therefore, this paper proposes a junction temperature calculation method for insulated gate bipolar transistor (IGBT). The proposed method calculates the switching cycle junction temperature of IGBT modules based on the electro-thermal analogy, then the entire fundamental frequency junction temperature are obtained iteratively via consecutive switching cycles. Performance of accuracy and speed of the proposed method is evaluated through a case study of a 1.8 MW wind power converter. Performance comparison of the proposed method with the electrical-thermal simulation and the analytical calculation is also conducted. Results show that the proposed method ensures the calculation accuracy as the electrical-thermal simulation, but greatly reduces the computational time in comparison to the electro-thermal simulation method. This proposed method can be applied in the lifetime estimation of power semiconductors considering a long time mission profiles.
{"title":"Numerical IGBT junction temperature calculation method for lifetime estimation of power semiconductors in the wind power converters","authors":"Gaoxian Li, Xiong Du, Pengju Sun, Luowei Zhou, H. Tai","doi":"10.1109/PEAC.2014.7037827","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037827","url":null,"abstract":"Power converters are crucial components of the wind turbine generator system (WTGS), and the reliability of wind power converters is susceptible to power fluctuations of the WTGS. The accurate lifetime estimation of power semiconductors should consider the long-time mission profiles of the WTGS. However, the existing junction temperature calculation methods don't meet the requirement for performance of accuracy and speed. Therefore, this paper proposes a junction temperature calculation method for insulated gate bipolar transistor (IGBT). The proposed method calculates the switching cycle junction temperature of IGBT modules based on the electro-thermal analogy, then the entire fundamental frequency junction temperature are obtained iteratively via consecutive switching cycles. Performance of accuracy and speed of the proposed method is evaluated through a case study of a 1.8 MW wind power converter. Performance comparison of the proposed method with the electrical-thermal simulation and the analytical calculation is also conducted. Results show that the proposed method ensures the calculation accuracy as the electrical-thermal simulation, but greatly reduces the computational time in comparison to the electro-thermal simulation method. This proposed method can be applied in the lifetime estimation of power semiconductors considering a long time mission profiles.","PeriodicalId":309780,"journal":{"name":"2014 International Power Electronics and Application Conference and Exposition","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131819117","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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