According to specific performance requirements,an integrated switched reluctance starter/generator system,which can start the engine and supply electrical energy to the loads,is designed and manufactured for the unman...According to specific performance requirements,an integrated switched reluctance starter/generator system,which can start the engine and supply electrical energy to the loads,is designed and manufactured for the unmanned aerial vehicle.Considering the required starting torque and speed range,the geometrical dimensions of the switched reluctance machine are calculated based on the output equation and further optimized with finite element analysis,and the flux-linkage,inductance and static torque characteristics are illustrated.To verify the performances of the designed system,detailed simulation with the model considering piston engine and experiment using the test bench are carried out.展开更多
A torque distribution strategy was designed by using fuzzy logic to realize the optimal control. The vehicle load zones were dynamically divided into several zones by several torque lines to indicate the drivers deman...A torque distribution strategy was designed by using fuzzy logic to realize the optimal control. The vehicle load zones were dynamically divided into several zones by several torque lines to indicate the drivers demand and the high or low efficient operating areas of the diesel engine. The fuzzy logic controller with trapezoid membership function and Mamdani rule reference mechanism was utilized. There are over 100 rules used in this fuzzy-based torque distribution strategy which are sorted into four rule-bases. The fuel economy and acceleration tests were designed to test and validate the integrated starter/generator (ISG) bus perfor-mance using fuzzy-based torque distribution strategy. The fuel economy is improved 7.7% compared with the rule-based strategy. Finally the road test results reveal that there is about 15% improvement of fuel economy. And the 0-50 km/h acceleration time is 9.5% shorter than the original bus.展开更多
为实现混合动力汽车用起动发电一体化(Integrated Starter and Generator,ISG)永磁同步电机控制系统的优化设计与精确的仿真分析,提高ISG永磁同步电机控制系统的快速开发能力,提出了一种ISG永磁同步电机控制系统设计新方法。该方法基于...为实现混合动力汽车用起动发电一体化(Integrated Starter and Generator,ISG)永磁同步电机控制系统的优化设计与精确的仿真分析,提高ISG永磁同步电机控制系统的快速开发能力,提出了一种ISG永磁同步电机控制系统设计新方法。该方法基于定子电流最优控制策略建立控制系统模型,结合有限元法计算的ISG永磁同步电机饱和电感参数特性和功率器件特性,在Simplorer系统仿真平台上开展ISG永磁同步电机及其控制系统设计与仿真。样机的仿真结果与试验结果比较吻合,验证了该设计方法的可信性,并实现了ISG永磁同步电机控制系统的快速开发。展开更多
基金This work was supported by the Key Research and Development Plan of Shaanxi Province under Grant 2018GY-185,Xi'an Science and Technology Plan under Grant 2017086CG/RC049(XBGY002)the ASN Innovation Development Fund under Grant ASN-IF2015-3110the Fundamental Research Funds for the Central Universities under Grants 3102017AX007.
文摘According to specific performance requirements,an integrated switched reluctance starter/generator system,which can start the engine and supply electrical energy to the loads,is designed and manufactured for the unmanned aerial vehicle.Considering the required starting torque and speed range,the geometrical dimensions of the switched reluctance machine are calculated based on the output equation and further optimized with finite element analysis,and the flux-linkage,inductance and static torque characteristics are illustrated.To verify the performances of the designed system,detailed simulation with the model considering piston engine and experiment using the test bench are carried out.
文摘A torque distribution strategy was designed by using fuzzy logic to realize the optimal control. The vehicle load zones were dynamically divided into several zones by several torque lines to indicate the drivers demand and the high or low efficient operating areas of the diesel engine. The fuzzy logic controller with trapezoid membership function and Mamdani rule reference mechanism was utilized. There are over 100 rules used in this fuzzy-based torque distribution strategy which are sorted into four rule-bases. The fuel economy and acceleration tests were designed to test and validate the integrated starter/generator (ISG) bus perfor-mance using fuzzy-based torque distribution strategy. The fuel economy is improved 7.7% compared with the rule-based strategy. Finally the road test results reveal that there is about 15% improvement of fuel economy. And the 0-50 km/h acceleration time is 9.5% shorter than the original bus.
文摘为实现混合动力汽车用起动发电一体化(Integrated Starter and Generator,ISG)永磁同步电机控制系统的优化设计与精确的仿真分析,提高ISG永磁同步电机控制系统的快速开发能力,提出了一种ISG永磁同步电机控制系统设计新方法。该方法基于定子电流最优控制策略建立控制系统模型,结合有限元法计算的ISG永磁同步电机饱和电感参数特性和功率器件特性,在Simplorer系统仿真平台上开展ISG永磁同步电机及其控制系统设计与仿真。样机的仿真结果与试验结果比较吻合,验证了该设计方法的可信性,并实现了ISG永磁同步电机控制系统的快速开发。
