In this study, a quasi-three-dimensional (3D)magnetic equivalent circuit (MEC) model of yokeless and segmented armature (YASA) axial flux permanent magnet motors is proposed to realize initial fast calculation of electromagnetic performances. In the model, 3D curvature and fringing effect, flux leakage, local saturation, and the nonlinearity of ferromagnetic materials are taken into account. Besides, a radial MEC is added to consider the radial magnetic field caused by magnetic coupling between different radial sections for more accurate calculation of magnetic density. The MEC model proposed in this paper can be used to quickly predict the performances of YASA motors, including no-load magnetic density distribution and values, no-load flux linkage, back electromotive force (EMF) and torque. To verify the reliability of the model, an aero-propulsion YASA motor is taken as example. The results calculated by MEC model are in good agreement with those obtained from 3D finite element method (FEM), and the calculation time is greatly reduced from hours of 3DFEM to seconds.
{"title":"A Quasi-Three-Dimensional Magnetic Equivalent Circuit Model of Yokeless and Segmented Armature Axial Flux Motors Considering Radial Segmentation Magnetic Coupling","authors":"Xining Sun, Limei Wang, Xinggang Fan, Dawei Li, R. Qu, Jianying Chen","doi":"10.1109/ITECAsia-Pacific56316.2022.9941935","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941935","url":null,"abstract":"In this study, a quasi-three-dimensional (3D)magnetic equivalent circuit (MEC) model of yokeless and segmented armature (YASA) axial flux permanent magnet motors is proposed to realize initial fast calculation of electromagnetic performances. In the model, 3D curvature and fringing effect, flux leakage, local saturation, and the nonlinearity of ferromagnetic materials are taken into account. Besides, a radial MEC is added to consider the radial magnetic field caused by magnetic coupling between different radial sections for more accurate calculation of magnetic density. The MEC model proposed in this paper can be used to quickly predict the performances of YASA motors, including no-load magnetic density distribution and values, no-load flux linkage, back electromotive force (EMF) and torque. To verify the reliability of the model, an aero-propulsion YASA motor is taken as example. The results calculated by MEC model are in good agreement with those obtained from 3D finite element method (FEM), and the calculation time is greatly reduced from hours of 3DFEM to seconds.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"22 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":"75084159","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-Pacific56316.2022.9941889
Nianzun Qi, Dongxin Jin, X. Ge, Cheng Luo
High power SiC MOSFET module has been widely used in HEV/EV (Hybrid Electric Vehicle/Electric Vehicle) traction inverters due to superior dynamic and static performance. However, the fast transient characteristic and inherent parasitic parameters could result in unexpected oscillation in the SiC MOSFET gate loop. This paper comprehensively analyzes the mechanism of gate-source voltage (vgs) oscillation during SiC MOSFET turn-on. Large power loop parasitic inductance would generate drain-source voltage (vds) oscillation, which could have adverse impact on gate-source voltage (vgs) through miller capacitor according to Kirchhoff’s Laws. Furthermore, large gate inductance from copper trace on PCB could exacerbate the vgs oscillation. Finally, simulation and experimental comparison between two driver board layouts reveal the influence of gate driver loop inductance on SiC MOSFET module turn-on gate voltage oscillation and validate the proposed PCB design recommendations.
大功率SiC MOSFET模块由于其优异的动、静态性能，在HEV/EV (Hybrid Electric Vehicle/电动车)牵引逆变器中得到了广泛的应用。然而，快速的瞬态特性和固有的寄生参数可能导致SiC MOSFET门环出现意外振荡。本文全面分析了SiC MOSFET导通过程中栅源电压振荡的机理。根据基尔霍夫定律，较大的功率回路寄生电感会产生漏源电压振荡，并通过米勒电容对栅极电压产生不利影响。此外，PCB上铜走线产生的较大栅极电感会加剧vgs振荡。最后，通过两种驱动板布局的仿真和实验比较，揭示了栅极驱动环路电感对SiC MOSFET模块导通栅极电压振荡的影响，并验证了所提出的PCB设计建议。
{"title":"Influence of Gate Driver Loop Inductance on SiC MOSFET Module Turn-on Gate Voltage Oscillation in High Power Application","authors":"Nianzun Qi, Dongxin Jin, X. Ge, Cheng Luo","doi":"10.1109/ITECAsia-Pacific56316.2022.9941889","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941889","url":null,"abstract":"High power SiC MOSFET module has been widely used in HEV/EV (Hybrid Electric Vehicle/Electric Vehicle) traction inverters due to superior dynamic and static performance. However, the fast transient characteristic and inherent parasitic parameters could result in unexpected oscillation in the SiC MOSFET gate loop. This paper comprehensively analyzes the mechanism of gate-source voltage (vgs) oscillation during SiC MOSFET turn-on. Large power loop parasitic inductance would generate drain-source voltage (vds) oscillation, which could have adverse impact on gate-source voltage (vgs) through miller capacitor according to Kirchhoff’s Laws. Furthermore, large gate inductance from copper trace on PCB could exacerbate the vgs oscillation. Finally, simulation and experimental comparison between two driver board layouts reveal the influence of gate driver loop inductance on SiC MOSFET module turn-on gate voltage oscillation and validate the proposed PCB design recommendations.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"42 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":"75183149","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-Pacific56316.2022.9942138
Xiong Bin, Huang Kangjie, Wang Yan, Zhang Caixia, Ma Rui, Su Pengcheng
With the development of traction converter for electric locomotive toward large capacity, the heat dissipation of IGBT becomes increasingly serious. Based on the principle of self-driven evaporative cooling, a self-driven evaporative cooling scheme with cooling plate structure is proposed. A prototype of self-driven evaporative cooling system for traction converter is designed and developed using insulated organic liquid with high evaporative latent heat, low boiling point and non-flammable as coolant. The prototype runs steadily under the load of 15kW, and the temperature of the cooling plate does not exceed $83^{circ}C$ and the surface temperature difference does not exceed 3K. Compared with the traditional water cooling system, it achieves better cooling performance and provides a new reference for the future cooling system design of traction converter for electric locomotive.
{"title":"Design of Self-Driven Evaporative Cooling System for Traction Converter","authors":"Xiong Bin, Huang Kangjie, Wang Yan, Zhang Caixia, Ma Rui, Su Pengcheng","doi":"10.1109/ITECAsia-Pacific56316.2022.9942138","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942138","url":null,"abstract":"With the development of traction converter for electric locomotive toward large capacity, the heat dissipation of IGBT becomes increasingly serious. Based on the principle of self-driven evaporative cooling, a self-driven evaporative cooling scheme with cooling plate structure is proposed. A prototype of self-driven evaporative cooling system for traction converter is designed and developed using insulated organic liquid with high evaporative latent heat, low boiling point and non-flammable as coolant. The prototype runs steadily under the load of 15kW, and the temperature of the cooling plate does not exceed $83^{circ}C$ and the surface temperature difference does not exceed 3K. Compared with the traditional water cooling system, it achieves better cooling performance and provides a new reference for the future cooling system design of traction converter for electric locomotive.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"14 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":"78088783","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}
Compared with traditional unmanned aerial vehicles(UAVs) powered by fuel, pure electric UAVs are more environmentally friendly, but due to the low energy density of lithium batteries, the UAVs have a short sailing time, which has also become a fatal disadvantage of UAVs. Fuel cells are considered to be an ideal power generation device to improve the endurance and cruising distance of UAVs due to their high specific energy, non-polluting, and high conversion efficiency. However, the flight tasks of UAVs are complex and changeable, and fuel cells need to use energy storage batteries as auxiliary power sources. This paper focuses on the energy management system (EMS) of the UAV hybrid power system based on fuel cells-lithium battery-supercapacitor. The EMS in the paper is divided into an upper decision-making layer and a lower control layer. The upper decision-making layer obtains the optimal power distribution scheme of each power source through the model predictive control (MPC) energy management strategy based on the equivalent consumption minimization strategy (ECMS) of hydrogen; The lower control layer obtains the power proportional relationship of each power supply from the decision-making layer and controls the output voltage and current of the relevant power supply modules to achieve stable operation of the whole system and reasonable power distribution.
{"title":"Energy Management Strategy for Hybrid-Electric Propulsion UAVs","authors":"Hongwei Zhao, Xue Jiang, Li-quan He, Yu Wu, Fengming Ai, Xingzhuang Liang, Weilin Li","doi":"10.1109/ITECAsia-Pacific56316.2022.9942171","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942171","url":null,"abstract":"Compared with traditional unmanned aerial vehicles(UAVs) powered by fuel, pure electric UAVs are more environmentally friendly, but due to the low energy density of lithium batteries, the UAVs have a short sailing time, which has also become a fatal disadvantage of UAVs. Fuel cells are considered to be an ideal power generation device to improve the endurance and cruising distance of UAVs due to their high specific energy, non-polluting, and high conversion efficiency. However, the flight tasks of UAVs are complex and changeable, and fuel cells need to use energy storage batteries as auxiliary power sources. This paper focuses on the energy management system (EMS) of the UAV hybrid power system based on fuel cells-lithium battery-supercapacitor. The EMS in the paper is divided into an upper decision-making layer and a lower control layer. The upper decision-making layer obtains the optimal power distribution scheme of each power source through the model predictive control (MPC) energy management strategy based on the equivalent consumption minimization strategy (ECMS) of hydrogen; The lower control layer obtains the power proportional relationship of each power supply from the decision-making layer and controls the output voltage and current of the relevant power supply modules to achieve stable operation of the whole system and reasonable power distribution.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"47 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":"78224800","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-Pacific56316.2022.9942024
Hang Li, Junfei Han, Chaoyu Yu, Zhini Yin, Yuqiang Wang, Min Chen, F. Jiang, Yifan Zhang
Electric vehicles have gradually become the mainstream means of transportation. As a way of energy storage, electric vehicles can participate in the flexible regulation of grid frequency. However, when a great quantity of electric vehicles are connected to the grid, the stability of the power system will be affected. On the one hand, the way grid-forming electric vehicles output the active power when they participate in grid frequency modulation is introduced. On the other hand, the inertia adjustment strategy is applied to the control of grid-forming electric vehicles, which limits the frequency change rate of inverters and optimizes the dynamic characteristics. Finally, an example of multiple grid-forming electric vehicles participating in power grid regulation is established to verify the control strategy.
{"title":"An Inertia Adjustment Control Strategy of Grid-Forming Electric Vehicle for V2G Application","authors":"Hang Li, Junfei Han, Chaoyu Yu, Zhini Yin, Yuqiang Wang, Min Chen, F. Jiang, Yifan Zhang","doi":"10.1109/ITECAsia-Pacific56316.2022.9942024","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942024","url":null,"abstract":"Electric vehicles have gradually become the mainstream means of transportation. As a way of energy storage, electric vehicles can participate in the flexible regulation of grid frequency. However, when a great quantity of electric vehicles are connected to the grid, the stability of the power system will be affected. On the one hand, the way grid-forming electric vehicles output the active power when they participate in grid frequency modulation is introduced. On the other hand, the inertia adjustment strategy is applied to the control of grid-forming electric vehicles, which limits the frequency change rate of inverters and optimizes the dynamic characteristics. Finally, an example of multiple grid-forming electric vehicles participating in power grid regulation is established to verify the control strategy.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"1529 ","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":"72432942","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-Pacific56316.2022.9941794
Wen‐Long Huang, Minjie Huang, Liyan Luo, Jiacheng Du, Xiaofeng Zhu
Based on the optimal current control principle, a fault-tolerant control strategy is proposed for a five-phase permanent magnet synchronous motor (PMSM) drive with a single open-circuit fault (OCF). The fast Fourier transformation and the concept of undisturbed rotating magnetomotive force are utilized to deduce the optimal phase currents under faulty conditions. Meanwhile, the obtained currents are applied in conjunction with the model predictive current control to preserve torque capacity and minimize torque ripples of faulty drive systems. To reduce the computational burden, only ten large voltage vectors and one zero vector are employed in the cost function optimization. Consequently, simulations and experiments are conducted to validate the effectiveness of the proposed control method.
{"title":"Open-Circuit Fault-Tolerant Control of Five-Phase PMSM Drives","authors":"Wen‐Long Huang, Minjie Huang, Liyan Luo, Jiacheng Du, Xiaofeng Zhu","doi":"10.1109/ITECAsia-Pacific56316.2022.9941794","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941794","url":null,"abstract":"Based on the optimal current control principle, a fault-tolerant control strategy is proposed for a five-phase permanent magnet synchronous motor (PMSM) drive with a single open-circuit fault (OCF). The fast Fourier transformation and the concept of undisturbed rotating magnetomotive force are utilized to deduce the optimal phase currents under faulty conditions. Meanwhile, the obtained currents are applied in conjunction with the model predictive current control to preserve torque capacity and minimize torque ripples of faulty drive systems. To reduce the computational burden, only ten large voltage vectors and one zero vector are employed in the cost function optimization. Consequently, simulations and experiments are conducted to validate the effectiveness of the proposed control method.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"7 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":"87739084","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-Pacific56316.2022.9942001
Yaqian Cai, Yichen Liu, Wenyin Zhu, Ronggang Ni
China’s high-market manufacturing industry has developed rapidly in recent years, industrial robots and other servo products have been widely used, and the position detection required by servo motor system has also developed rapidly. Among the common sensors, variable reluctance resolver stands out with its many advantages and is applied in many fields. The main analysis model in this paper is the internal motor of hybrid double stator motor. On the basis of modifying the air gap function and the coil turn distribution function, the Modified Winding Function Approach (MWFA) is used to analyze the model. Then another method, Finite Element Analysis (FEA), is also used to analyze the model. Comparing the results of the two methods, it can be seen that the results of MWFA also fluctuate in the results of FEA, and the phase is the same.
{"title":"Calculation of Inductance Parameters of Variable Reluctance Resolver Based on Modified Winding Function Method","authors":"Yaqian Cai, Yichen Liu, Wenyin Zhu, Ronggang Ni","doi":"10.1109/ITECAsia-Pacific56316.2022.9942001","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9942001","url":null,"abstract":"China’s high-market manufacturing industry has developed rapidly in recent years, industrial robots and other servo products have been widely used, and the position detection required by servo motor system has also developed rapidly. Among the common sensors, variable reluctance resolver stands out with its many advantages and is applied in many fields. The main analysis model in this paper is the internal motor of hybrid double stator motor. On the basis of modifying the air gap function and the coil turn distribution function, the Modified Winding Function Approach (MWFA) is used to analyze the model. Then another method, Finite Element Analysis (FEA), is also used to analyze the model. Comparing the results of the two methods, it can be seen that the results of MWFA also fluctuate in the results of FEA, and the phase is the same.","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":"80023176","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}
Heat pipes (HPs) are being widely applied in the cooling systems of electrical machines with remarkable cooling effectiveness reported in the existing literature. However, attention is rarely paid to the effect of HP inclination angle on its thermal performance and resulted non-uniform temperature distribution issues in electrical machines. In this article, a dedicated experimental platform is established and the equivalent thermal conductivities of HPs at different inclination angles are accurately measured by experimental tests. On top of that, a 3-D thermal model based on a full-size stator-winding assembly where HPs are evenly inserted into the winding is built and the temperature distribution across the whole winding is comparatively studied under different cooling methods and thermal loads. The results show that the equivalent thermal conductivities of the HPs at different inclination angles vary more than five times, which leads to a maximum temperature difference of up to 4.317°C under the liquid cooling method.
{"title":"Research on the Effect of Heat Pipe Inclination Angle on Temperature Distribution in Electrical Machines","authors":"H. Zhao, Xiaochen Zhang, Xiaorui Zhu, Yue Zhang, Hongyu Yan, Zhihao Niu","doi":"10.1109/ITECAsia-Pacific56316.2022.9941772","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941772","url":null,"abstract":"Heat pipes (HPs) are being widely applied in the cooling systems of electrical machines with remarkable cooling effectiveness reported in the existing literature. However, attention is rarely paid to the effect of HP inclination angle on its thermal performance and resulted non-uniform temperature distribution issues in electrical machines. In this article, a dedicated experimental platform is established and the equivalent thermal conductivities of HPs at different inclination angles are accurately measured by experimental tests. On top of that, a 3-D thermal model based on a full-size stator-winding assembly where HPs are evenly inserted into the winding is built and the temperature distribution across the whole winding is comparatively studied under different cooling methods and thermal loads. The results show that the equivalent thermal conductivities of the HPs at different inclination angles vary more than five times, which leads to a maximum temperature difference of up to 4.317°C under the liquid cooling method.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"45 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":"80262452","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 proposes a novel measurement and compensation method of the inverter nonlinearity for linear induction motor (LIM). The voltage source inverter is configured to operate as a single-phase full-bridge inverter, and the equivalent circuit is extracted. The stator resistance of LIM is obtained by least square (LS) method to reduce the calculation error. The inverter nonlinearity voltage error is analyzed and a model adapted to the DC bus voltage is extracted. By using voltage regulator, the nonlinear coefficients are solved under two different DC bus voltages and stored in the table. The nonlinear voltage error is calculated by the model using the look-up table (LUT) method. Experimental results demonstrate the accuracy of the nonlinear voltage error model and the feasibility of the nonlinear voltage error compensation.
{"title":"A Novel Measurement and Compensation Method of Inverter Nonlinearity for Linear Induction Motor","authors":"Mingyuan Zhang, Liming Shi, Manyi Fan, Jinhai Liu, Shijiong Zhou, Keyu Guo","doi":"10.1109/ITECAsia-Pacific56316.2022.9941787","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941787","url":null,"abstract":"This paper proposes a novel measurement and compensation method of the inverter nonlinearity for linear induction motor (LIM). The voltage source inverter is configured to operate as a single-phase full-bridge inverter, and the equivalent circuit is extracted. The stator resistance of LIM is obtained by least square (LS) method to reduce the calculation error. The inverter nonlinearity voltage error is analyzed and a model adapted to the DC bus voltage is extracted. By using voltage regulator, the nonlinear coefficients are solved under two different DC bus voltages and stored in the table. The nonlinear voltage error is calculated by the model using the look-up table (LUT) method. Experimental results demonstrate the accuracy of the nonlinear voltage error model and the feasibility of the nonlinear voltage error compensation.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"92 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":"80437203","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 modern aircraft, there is a huge demand for high power high step-up DC/DC conversion from 2SV to 270V or even higher, such as Start Power Unit (SPU) and onboard backup power supply systems. Due to high efficiency, high power density, low EMI, and soft-switching capability, LLC resonant topology are widely used. Moreover, the simple control of LLC topology is benefit for control system design and system reliability. However, when it comes to High Power High StepUp (HPHS) applications, original LLC resonant topology will encounter some problems, resulting lower efficiency, lower power density, and poor parameter controllability. This paper first analyzed these problems, and then proposed a ms-LLC resonant topology with multiple working modes, which is suitable for HPHS applications on aircraft. A 3kW2SV/360V prototype of ms-LLC was designed, fabricated and tested. The feasibility of proposed topology is verified.
{"title":"High Power High Step-Up LLC Resonant Converter With Multimode For Aircraft Applications","authors":"Xuanlyu Wu, Xin Zhao, Shuangyi Zhong, Xiliang Chen, Bei Wang, Xiaohua Wu","doi":"10.1109/ITECAsia-Pacific56316.2022.9941823","DOIUrl":"https://doi.org/10.1109/ITECAsia-Pacific56316.2022.9941823","url":null,"abstract":"In modern aircraft, there is a huge demand for high power high step-up DC/DC conversion from 2SV to 270V or even higher, such as Start Power Unit (SPU) and onboard backup power supply systems. Due to high efficiency, high power density, low EMI, and soft-switching capability, LLC resonant topology are widely used. Moreover, the simple control of LLC topology is benefit for control system design and system reliability. However, when it comes to High Power High StepUp (HPHS) applications, original LLC resonant topology will encounter some problems, resulting lower efficiency, lower power density, and poor parameter controllability. This paper first analyzed these problems, and then proposed a ms-LLC resonant topology with multiple working modes, which is suitable for HPHS applications on aircraft. A 3kW2SV/360V prototype of ms-LLC was designed, fabricated and tested. The feasibility of proposed topology is verified.","PeriodicalId":45126,"journal":{"name":"Asia-Pacific Journal-Japan Focus","volume":"42 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":"82313849","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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