Parallel-connected power device is an extensively applied solution in the industry to increase the current rating of the converter system compared with using high-power modules. However, due to the undesired PCB layout or semiconductor fabrication tolerance, mismatched drain-source current (Ids) which speeds up the aging process of a specific device can be introduced. The application of silicon carbide (SiC) devices aggravates this problem due to their higher switching speed. Asynchronous gate signal delay brought by the different driver chip propagation delay, gate loop parasitic inductance, or asynchronous PWM signal is a major reason of transient current imbalance. The analysis of its impact on switching performance is yet to be clarified. In this paper, different types of current imbalance of parallel connected MOSFET are analyzed. An accurate analytical model for deriving the turn-on switching trajectory of parallel-connected SiC MOSFETs under different gate signal delay time is firstly proposed. With the proposed model, the important performance indicators such as turn-on switching energy loss, current stress can be derived with the trajectory model. Experimental study is conducted to validate the proposed model.
{"title":"Analytical Model of the Parallel-Connected Silicon Carbide MOSFET Turn-ON Switching Behavior Under Asynchronous Gate Signals","authors":"Chen Wang, Shuang Zhao, Jianing Wang, Helong Li, Yuqi Wei, H. Mantooth","doi":"10.1109/ITECAsia-Pacific56316.2022.9941859","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941859","url":null,"abstract":"Parallel-connected power device is an extensively applied solution in the industry to increase the current rating of the converter system compared with using high-power modules. However, due to the undesired PCB layout or semiconductor fabrication tolerance, mismatched drain-source current (Ids) which speeds up the aging process of a specific device can be introduced. The application of silicon carbide (SiC) devices aggravates this problem due to their higher switching speed. Asynchronous gate signal delay brought by the different driver chip propagation delay, gate loop parasitic inductance, or asynchronous PWM signal is a major reason of transient current imbalance. The analysis of its impact on switching performance is yet to be clarified. In this paper, different types of current imbalance of parallel connected MOSFET are analyzed. An accurate analytical model for deriving the turn-on switching trajectory of parallel-connected SiC MOSFETs under different gate signal delay time is firstly proposed. With the proposed model, the important performance indicators such as turn-on switching energy loss, current stress can be derived with the trajectory model. Experimental study is conducted to validate the proposed model.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84348787","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9941975
Boyang Li, Jialou Gao, Yuan Xie, Min Zhou, Dong Jiang
This paper introduces an auxiliary motor drive solution based on three-phase onboard battery charger to improve drive capability. The specific scheme of the control strategy is given by circuit analysis and modeling. The proposed scheme reduces the current stress on the driving inverter, increases the total converter output current, achieves fault tolerance, and improves the dynamic response performance based on mathematical model analysis. Besides, the improvements need few additional components, so that the cost is quite low. The above functions have been verified by experiments or simulations.
{"title":"Auxiliary Motor Drive Based on Three-phase Onboard Battery Charger","authors":"Boyang Li, Jialou Gao, Yuan Xie, Min Zhou, Dong Jiang","doi":"10.1109/ITECAsia-Pacific56316.2022.9941975","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941975","url":null,"abstract":"This paper introduces an auxiliary motor drive solution based on three-phase onboard battery charger to improve drive capability. The specific scheme of the control strategy is given by circuit analysis and modeling. The proposed scheme reduces the current stress on the driving inverter, increases the total converter output current, achieves fault tolerance, and improves the dynamic response performance based on mathematical model analysis. Besides, the improvements need few additional components, so that the cost is quite low. The above functions have been verified by experiments or simulations.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"15 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90087312","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9942080
Chunyang Jiang, Hongchen Liu, Xinsheng Zhang, Youzheng Wang, Chaochao Li
Multiphase open-end winding permanent magnet synchronous motor (OEW-PMSM) has many advantages, such as high power density, reduced torque ripples and high reliability. However, the dual inverter system with common DC bus has a zero-sequence path and causes the zero-sequence circuiting current. The zero-sequence current (ZSC) produces system losses and torque ripples. In order to achieve a high performance of the motor, the model of a five-phase OEW-PMSM is built. The model contains the zero-sequence component, which does not exist in conventional PMSM model. Then a vector proportional integral controller is designed to suppress the ZSC in the system. The simulation and experiment results prove that the vector proportional integral controller has a good performance of suppressing the ZSC.
{"title":"A Zero-sequence Current Suppression strategy for Five-phase Open-end Winding PMSM with Vector Proportional Integral Controller","authors":"Chunyang Jiang, Hongchen Liu, Xinsheng Zhang, Youzheng Wang, Chaochao Li","doi":"10.1109/ITECAsia-Pacific56316.2022.9942080","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942080","url":null,"abstract":"Multiphase open-end winding permanent magnet synchronous motor (OEW-PMSM) has many advantages, such as high power density, reduced torque ripples and high reliability. However, the dual inverter system with common DC bus has a zero-sequence path and causes the zero-sequence circuiting current. The zero-sequence current (ZSC) produces system losses and torque ripples. In order to achieve a high performance of the motor, the model of a five-phase OEW-PMSM is built. The model contains the zero-sequence component, which does not exist in conventional PMSM model. Then a vector proportional integral controller is designed to suppress the ZSC in the system. The simulation and experiment results prove that the vector proportional integral controller has a good performance of suppressing the ZSC.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"11 2 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90391129","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9941780
Chuang Chen, P. Zheng, Chengde Tong, Jing Shang, Bo Liu
Free-piston linear generator (FPLG) has attracted wide attention for its potential in electric vehicle applications. A significant characteristic of FPLG is that it cancels the crank-slider mechanism, allowing variable compression ratio and higher overall efficiency. However, the absence of mechanical limits makes the stable operation of engine so difficult. The control of piston motion needs to conquer the frequent combustion variations to ensure accurate dead center positions so that the engine can continuously stay within the normal operating range. This paper proposes a force control method for the linear generator of FPLG to accurately maintain the dead centers. The control variables are obtained through modeling of the piston motion profiles. The electromagnetic force of LEM is regulated by specifying the q-axis reference current through feedback mechanism. The control effect of the control scheme was verified through experimental tests.
{"title":"A Novel Force Control Method for Dead Centers Tracking of Free-Piston Linear Generator","authors":"Chuang Chen, P. Zheng, Chengde Tong, Jing Shang, Bo Liu","doi":"10.1109/ITECAsia-Pacific56316.2022.9941780","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941780","url":null,"abstract":"Free-piston linear generator (FPLG) has attracted wide attention for its potential in electric vehicle applications. A significant characteristic of FPLG is that it cancels the crank-slider mechanism, allowing variable compression ratio and higher overall efficiency. However, the absence of mechanical limits makes the stable operation of engine so difficult. The control of piston motion needs to conquer the frequent combustion variations to ensure accurate dead center positions so that the engine can continuously stay within the normal operating range. This paper proposes a force control method for the linear generator of FPLG to accurately maintain the dead centers. The control variables are obtained through modeling of the piston motion profiles. The electromagnetic force of LEM is regulated by specifying the q-axis reference current through feedback mechanism. The control effect of the control scheme was verified through experimental tests.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"2017 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86747449","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}
This paper investigates a reinforcement learning based adaptive robustness parameter tunning approach for the virtual synchronous generator (VSG). Particularly, a deep Q-network (DQN) algorithm is employed to realize the real-time parameter tuning of inertia and damping coefficient in the VSG controller. The proposed parameter tuning approach is confirmed by the simulation results and compared with the conventional VSG controller with fixed parameters.
{"title":"Deep Q-Network based Adaptive Robustness Parameters for Virtual Synchronous Generator","authors":"Wenjie Wu, Feng Guo, Qiulong Ni, Xing Liu, Lin Qiu, Youtong Fang","doi":"10.1109/ITECAsia-Pacific56316.2022.9941893","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941893","url":null,"abstract":"This paper investigates a reinforcement learning based adaptive robustness parameter tunning approach for the virtual synchronous generator (VSG). Particularly, a deep Q-network (DQN) algorithm is employed to realize the real-time parameter tuning of inertia and damping coefficient in the VSG controller. The proposed parameter tuning approach is confirmed by the simulation results and compared with the conventional VSG controller with fixed parameters.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"50 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88835830","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9942061
Dener A. L. Brandão, T. Parreiras, I. Pires, B. Filho
As the electrical vehicle fleet grows, extreme fast charging (XFC) stations for multiple vehicles will be increasingly needed. The challenges for the implementation of many XFC stations in the electric power system are many and it is necessary to use converters that reduce the negative impacts on the electric grid, meet the standards and recommendations, and that are technically and economically viable. This work proposes an XFC station for multiple vehicles that has a very low current harmonics injection at the grid side, with a Total Demand Distortion (TDD) of 0.62% without using sinusoidal filter, provides galvanic isolation for each input/output port, and can provide additional features such as Distributed Energy Resources (DER) integration and ancillary services. This is achieved by combining a bidirectional low switching frequency grid-connected active front-end with high switching frequency SiC-based dc/dc converters in the vehicles side. After a brief description of the proposed system and its control, simulation results are presented to validate the XFC.
{"title":"Extreme Fast Charging Station for Multiple Vehicles with Sinusoidal Currents at the Grid Side","authors":"Dener A. L. Brandão, T. Parreiras, I. Pires, B. Filho","doi":"10.1109/ITECAsia-Pacific56316.2022.9942061","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942061","url":null,"abstract":"As the electrical vehicle fleet grows, extreme fast charging (XFC) stations for multiple vehicles will be increasingly needed. The challenges for the implementation of many XFC stations in the electric power system are many and it is necessary to use converters that reduce the negative impacts on the electric grid, meet the standards and recommendations, and that are technically and economically viable. This work proposes an XFC station for multiple vehicles that has a very low current harmonics injection at the grid side, with a Total Demand Distortion (TDD) of 0.62% without using sinusoidal filter, provides galvanic isolation for each input/output port, and can provide additional features such as Distributed Energy Resources (DER) integration and ancillary services. This is achieved by combining a bidirectional low switching frequency grid-connected active front-end with high switching frequency SiC-based dc/dc converters in the vehicles side. After a brief description of the proposed system and its control, simulation results are presented to validate the XFC.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"149 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83274820","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9942168
Shen Che, Cheng Peng, Zishun Peng, Yuxing Dai, W. Hu
Inverters are an important part of the electric drive system of new energy electric vehicles. Complex working conditions and user demands put forward more demanding requirements on the capacity, efficiency, cost, power density and reliability of the main drive inverters of electric vehicles. It is difficult to take into account these performance indicators if the inverter is composed of silicon-based power devices or silicon carbide power devices alone. In order to solve these problems effectively, the integrated power supply composed of Si IGBT inverter and SiC MOSFET inverter in parallel is a feasible solution. Due to the coupling characteristics of different power devices, the related research of this structure is in the preliminary stage. Power loss and junction temperature parameters as key indicators of parallel integrated power supply are not fully and deeply studied. In this paper, the loss of the parallel structure under sinusoidal pulse width modulation is deduced and analyzed, and the circuit model and loss model are built in the simulation software PLECS. The simulation results and theoretical calculation results are verified each other, and the simulation results can be used as the basis for the heat dissipation design of the inverter. Aiming at the parallel structure of the inverter, a multi-objective mathematical model is proposed as the basis for device selection and load power design of the parallel inverter.
{"title":"Thermal Analysis of Integrated Power Supply in Parallel with Si IGBT and SiC MOSFET Inverter Based on PLECS","authors":"Shen Che, Cheng Peng, Zishun Peng, Yuxing Dai, W. Hu","doi":"10.1109/ITECAsia-Pacific56316.2022.9942168","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942168","url":null,"abstract":"Inverters are an important part of the electric drive system of new energy electric vehicles. Complex working conditions and user demands put forward more demanding requirements on the capacity, efficiency, cost, power density and reliability of the main drive inverters of electric vehicles. It is difficult to take into account these performance indicators if the inverter is composed of silicon-based power devices or silicon carbide power devices alone. In order to solve these problems effectively, the integrated power supply composed of Si IGBT inverter and SiC MOSFET inverter in parallel is a feasible solution. Due to the coupling characteristics of different power devices, the related research of this structure is in the preliminary stage. Power loss and junction temperature parameters as key indicators of parallel integrated power supply are not fully and deeply studied. In this paper, the loss of the parallel structure under sinusoidal pulse width modulation is deduced and analyzed, and the circuit model and loss model are built in the simulation software PLECS. The simulation results and theoretical calculation results are verified each other, and the simulation results can be used as the basis for the heat dissipation design of the inverter. Aiming at the parallel structure of the inverter, a multi-objective mathematical model is proposed as the basis for device selection and load power design of the parallel inverter.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"75 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88196687","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}
High-speed permanent magnet brushless dc (PM BLDC) motors rotor is typically protected with a nonmagnetic retaining sleeve. In this paper, a composite sleeve structure with an inner layer of titanium alloy and an outer layer of carbon fiber is designed. It is mechanically robust and present low eddy current loss with the new sleeve. In addition, eddy current loss and torque might be significant in the rotor of a PM BLDC motor and are comparatively analyzed by modifying the thickness of both materials of the new sleeve. After that, to address the problem of increased eddy current losses in PM due to the new sleeve, a composite sleeve with copper shielding is investigated. For the composite sleeve with a copper shield, the effects of the copper shield’s positions and thickness on the rotor losses are studied. Finally, the range of preferred composite sleeve structures is summarized.
{"title":"Study on the Effect of Composite Sleeve on Rotor Loss of High-Speed PM BLDC","authors":"Luo Chao, Jien Ma, Bowen Xu, Qiu Lin, Xing Liu, Youtong Fang","doi":"10.1109/ITECAsia-Pacific56316.2022.9941926","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941926","url":null,"abstract":"High-speed permanent magnet brushless dc (PM BLDC) motors rotor is typically protected with a nonmagnetic retaining sleeve. In this paper, a composite sleeve structure with an inner layer of titanium alloy and an outer layer of carbon fiber is designed. It is mechanically robust and present low eddy current loss with the new sleeve. In addition, eddy current loss and torque might be significant in the rotor of a PM BLDC motor and are comparatively analyzed by modifying the thickness of both materials of the new sleeve. After that, to address the problem of increased eddy current losses in PM due to the new sleeve, a composite sleeve with copper shielding is investigated. For the composite sleeve with a copper shield, the effects of the copper shield’s positions and thickness on the rotor losses are studied. Finally, the range of preferred composite sleeve structures is summarized.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"25 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81002571","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9941955
Shuhao Yang, Dan Wang, Hao Wu, Kun Wang, Saijun Mao, Hongyao Liu
The behavior of phase shift modulation (PSM) of LCC series-parallel resonant converter (LCC-SPRC) applied to high voltage (HV) DC pulsed power supply is analyzed in this paper, and three simplified state trajectory mathematical models for LCC SPRC with PSM is established. A method for solving the approximate numerical solution of each mode duration is proposed, by which the accurate mode switching points can be obtained. The accuracy of the modeling method and the approximate numerical solution method are verified by simulations and experiments with a 1.5kW prototype.
{"title":"Steady-State Modeling for LCC Resonant Converter with Phase Shift Modulation Based on Simplified State Trajectory","authors":"Shuhao Yang, Dan Wang, Hao Wu, Kun Wang, Saijun Mao, Hongyao Liu","doi":"10.1109/ITECAsia-Pacific56316.2022.9941955","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941955","url":null,"abstract":"The behavior of phase shift modulation (PSM) of LCC series-parallel resonant converter (LCC-SPRC) applied to high voltage (HV) DC pulsed power supply is analyzed in this paper, and three simplified state trajectory mathematical models for LCC SPRC with PSM is established. A method for solving the approximate numerical solution of each mode duration is proposed, by which the accurate mode switching points can be obtained. The accuracy of the modeling method and the approximate numerical solution method are verified by simulations and experiments with a 1.5kW prototype.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"52 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86922936","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 : 2022-10-28DOI: 10.1109/ITECAsia-Pacific56316.2022.9942065
Zhikun Wang, Shuhao Yang, Saijun Mao, Xi Lu, Hongping Ma, Hongyao Liu
Silicon Carbide (SiC) power semiconductor device has been used in power electronics in recent years. However, it is a challenge to achieve accurate switching characterization of SiC MOSFET than Si IGBT due to its fast switching speed. Firstly, this paper analyzed the factors influencing the accuracy of switching characterization for SiC MOSFET. It is found that the signal zero bias of drain-source voltage (Vds) and current (Id), the time delay between Vds and Ids, sampling frequency and sampling bandwidth of measured equipments all lead to the inaccuracy. Moreover, a method based on SiC MOSFET switching behavior is proposed. The analysis and the model are validated from the experimental results based on a 1200V/600ASiC MOSFET power module and a 45m$Omega$ SiC MOSFET discrete.
碳化硅功率半导体器件近年来在电力电子领域得到了广泛的应用。然而，由于SiC MOSFET的开关速度快，因此与Si IGBT相比，实现精确的开关特性是一个挑战。本文首先分析了影响SiC MOSFET开关特性精度的因素。漏源电压(Vds)和电流(Id)的信号零偏、Vds和Id之间的时间延迟、被测设备的采样频率和采样带宽都是导致测量精度不准确的原因。此外，还提出了一种基于SiC MOSFET开关特性的方法。基于1200V/600ASiC MOSFET功率模块和45m$ ω $ SiC MOSFET分立器件的实验结果验证了分析和模型的正确性。
{"title":"Factors Influencing the Accuracy of Switching Characterization for SiC MOSFET","authors":"Zhikun Wang, Shuhao Yang, Saijun Mao, Xi Lu, Hongping Ma, Hongyao Liu","doi":"10.1109/ITECAsia-Pacific56316.2022.9942065","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942065","url":null,"abstract":"Silicon Carbide (SiC) power semiconductor device has been used in power electronics in recent years. However, it is a challenge to achieve accurate switching characterization of SiC MOSFET than Si IGBT due to its fast switching speed. Firstly, this paper analyzed the factors influencing the accuracy of switching characterization for SiC MOSFET. It is found that the signal zero bias of drain-source voltage (Vds) and current (Id), the time delay between Vds and Ids, sampling frequency and sampling bandwidth of measured equipments all lead to the inaccuracy. Moreover, a method based on SiC MOSFET switching behavior is proposed. The analysis and the model are validated from the experimental results based on a 1200V/600ASiC MOSFET power module and a 45m$Omega$ SiC MOSFET discrete.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"27 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87133405","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：