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
In order to better realize the energy recovery and storage of hybrid EVs(HEVs),a switched reluctance starter/generator(SRS/G)with both starting and power generation functions is investigated in this paper.First,the ir...In order to better realize the energy recovery and storage of hybrid EVs(HEVs),a switched reluctance starter/generator(SRS/G)with both starting and power generation functions is investigated in this paper.First,the iron loss of SRS/G is mainly studied to reduce the motor loss and improve the power generation efficiency.Then,the energy storage of hybrid EVs can be effectively improved.Secondly,a magnetic flux density(MFD)waveforms solution method is proposed to solve the difficulty in calculating the iron loss of the SRS/G.Compared with the commonly used finite element method,the proposed solution method has the advantages of simple,fast and small computational amount.Meanwhile,considering the different operating conditions of SRS/G,the iron loss models for both the time-domain and frequency-domain are established.In addition,the calculation formula of the variable coefficient Bertotti three-term loss separation is improved.As the hysteresis loss coefficient,the Steinmetz coefficient and the stray loss coefficient are respectively fitted by the Fourier fitting method.This method is also applied to solve the iron loss of SRS/G.Finally,through an experimental verification,it is indicated that the development of proposed method has high accuracy.展开更多
分析了12/10极开关磁阻电机(Switched Reluctance Motor,简称SRM)的基本工作原理,根据混合动力汽车(Hybrid Electric Vehicle,简称HEV)中起动/发电集成一体化I(ntegrated Starter and Generator,简称ISG)系统的功能要求,提出了起动、助...分析了12/10极开关磁阻电机(Switched Reluctance Motor,简称SRM)的基本工作原理,根据混合动力汽车(Hybrid Electric Vehicle,简称HEV)中起动/发电集成一体化I(ntegrated Starter and Generator,简称ISG)系统的功能要求,提出了起动、助力和发电状态下的控制策略。在ISG系统的实验平台上进行了实验,验证了控制策略,给出了试验结果。展开更多
在汽车工业向着节能、环保的方向发展的背景下,分析了传统汽车起动机的不足和国内外起动发电一体化技术的研究现状;然后提出并介绍了新型的磁通开关型ISG的拓扑结构和运行原理,以7.5 k W起动发电一体机的设计为例给出了一种磁通开关型IS...在汽车工业向着节能、环保的方向发展的背景下,分析了传统汽车起动机的不足和国内外起动发电一体化技术的研究现状;然后提出并介绍了新型的磁通开关型ISG的拓扑结构和运行原理,以7.5 k W起动发电一体机的设计为例给出了一种磁通开关型ISG的理论计算设计方法,并利用Ansoft Maxwell对所设计的ISG参数进行了电磁场有限元分析,验证了这种设计方法的可行性;为其他学者设计磁通开关型ISG提供了参考,在今后的研究中,可采用文中给出的理论计算方法确定ISG的结构尺寸和电磁参数,然后再根据应用场合进行优化。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.
基金supported in part by the Shenzhen Collaborative Innovation Special Plan International Cooperation Research Project(No.GJHZ20220913144400001)the General Research Project of Shenzhen Science and Technology Plan(No.JCYJ20220818100000001).
文摘In order to better realize the energy recovery and storage of hybrid EVs(HEVs),a switched reluctance starter/generator(SRS/G)with both starting and power generation functions is investigated in this paper.First,the iron loss of SRS/G is mainly studied to reduce the motor loss and improve the power generation efficiency.Then,the energy storage of hybrid EVs can be effectively improved.Secondly,a magnetic flux density(MFD)waveforms solution method is proposed to solve the difficulty in calculating the iron loss of the SRS/G.Compared with the commonly used finite element method,the proposed solution method has the advantages of simple,fast and small computational amount.Meanwhile,considering the different operating conditions of SRS/G,the iron loss models for both the time-domain and frequency-domain are established.In addition,the calculation formula of the variable coefficient Bertotti three-term loss separation is improved.As the hysteresis loss coefficient,the Steinmetz coefficient and the stray loss coefficient are respectively fitted by the Fourier fitting method.This method is also applied to solve the iron loss of SRS/G.Finally,through an experimental verification,it is indicated that the development of proposed method has high accuracy.
文摘分析了12/10极开关磁阻电机(Switched Reluctance Motor,简称SRM)的基本工作原理,根据混合动力汽车(Hybrid Electric Vehicle,简称HEV)中起动/发电集成一体化I(ntegrated Starter and Generator,简称ISG)系统的功能要求,提出了起动、助力和发电状态下的控制策略。在ISG系统的实验平台上进行了实验,验证了控制策略,给出了试验结果。
文摘在汽车工业向着节能、环保的方向发展的背景下,分析了传统汽车起动机的不足和国内外起动发电一体化技术的研究现状;然后提出并介绍了新型的磁通开关型ISG的拓扑结构和运行原理,以7.5 k W起动发电一体机的设计为例给出了一种磁通开关型ISG的理论计算设计方法,并利用Ansoft Maxwell对所设计的ISG参数进行了电磁场有限元分析,验证了这种设计方法的可行性;为其他学者设计磁通开关型ISG提供了参考,在今后的研究中,可采用文中给出的理论计算方法确定ISG的结构尺寸和电磁参数,然后再根据应用场合进行优化。