复兴号FXD1动力集中动车组用异步牵引电机设计

介绍了复兴号FXD1动力集中动车组用异步牵引电机的设计情况。主要从整车总体技术要求、电机结构设计、电磁方案设计、电机特性、关键技术、电机试验等方面进行了阐述。根据异步牵引电机的技术特点,通过对电磁设计、结构设计及冷却设计等关键技术研究,设计了1台异步牵引电机,并进行了试验。试验结果表明该异步牵引电机满足整车技术指标要求,验证了设计方案的可行性。     

浅谈中小型防爆电机的电磁设计方法

围绕中小型防爆电机的电磁设计,介绍了中小型防爆电机电磁设计的思路、电磁设计、电磁参数的选取方法。     

异步牵引电机冷却设计的分析与验证

以某异步牵引电机为例,介绍了电机冷却系统设计的过程和主要原则。分析了电机内冷却介质的流动特性并提出改善流量分配的措施;通过对比电机定子绕组温升的计算值与试验值,验证了计算方法;详细分析了海拔高度对空气性质和电机绕组温升的影响,并阐述了在冷却设计时考虑运行环境因素的重要性。介绍的设计思路和结论对异步牵引电机的冷却设计具有一定的参考价值。     

基于Ansoft软件设计分析内置式永磁同步电动机

从特种电机要求、电机磁路结构、主要参数的选取等方面介绍了永磁同步电动机的设计方法,并分析了这些参数对电机性能的影响。运用有限元软件Ansoft分析计算永磁同步电动机电磁系数并设计了一种内置式永磁电机。     

万家寨引黄工程大泵电机的研制

对万家寨引黄工程GM3泵站6500kW大泵电机的研制情况进行了详细分析。主要介绍了电机的电磁、结构、刚强度计算和通风计算等部分。通过对此电机的研制,熟悉并掌握了此类电机的设计和分析计算方法,为同类型电机的设计提供了一些有益的参考。     

塑封电机大规模生产专用焊接设备的设计与研究

介绍了塑封电机的特点及焊接工艺难点,设计研究了一种塑封电机专用焊接设备,并简单地介绍了塑封电机焊接工艺。     

轴向分段式外永磁转子爪极电机设计

为了解决具有特殊结构新型轴向分段式外永磁转子爪极电机的设计问题,在对该种电机的结构、材料、特点以及运行机理简单介绍的基础上,首先提出了该种电机的设计原则,导出了电机主要参数间的关系,分析了电机极数选择的依据;然后详细的列出了该种电机的定子和转子结构设计公式,并给出了电机的简单设计流程;最后通过样机的制造对电机的设计原则和设计特点进行了校验和进一步完善;本文为该种新型电机的设计提供了相对完整的设计参考,同时也为该种电机的深入研究奠定了技术基础。     

永磁材料在永磁电机中的应用探讨

本文介绍了稀土材料及其在永磁电机中的应用、NdFeB材料的稳定性问题和防腐蚀试验研究,最后介绍了永磁电机设计特点。     

大型电机螺纹连接的拧紧力矩及预紧力计算

简要介绍了大型电机螺纹连接的基本类型,并结合实例详细介绍了螺纹连接的拧紧力矩及预紧力计算过程,对计算值进行了现场验证,以便在电机设计、制造以及用户对电机现场安装、维护维修时,给出准确的螺纹拧紧力矩和预紧力值,为电机设计人员提供参考。     

塑封电机大规模生产专用焊接设备的设计与研究

介绍了塑封电机的特点及焊接工艺难点，设计研究了一种塑封电机专用焊接设备。并简单地介绍了塑封电机焊接工艺。     

某车用动力电机结构设计与仿真分析

汽车产业面临越来越严峻的环境及能源挑战,促使各大车企在新能源汽车上投入更多的资金及技术。驱动电机是新能源汽车的核心部件之一,其工作在高温、振动的环境下,功率密度高。因此,电机结构设计关系到强度、振动噪声、耐久性等。阐述了某驱动电机的结构特点及设计开发过程。通过CAE软件仿真分析了整车不同工况下电机壳体静强度,扫频、随机振动工况时壳体承受的应力,以及整机模态。驱动电机通过专项振动试验,证明其结构强度及模态满足设计目标。     

A new control method and reliability improvement for a switched reluctance motor drive

This paper presents a new control method and a new fault-tolerant drive system for a switched reluctance motor. The design, simulation, and implementation of a three-phase, 7.5 kW, eight-pole switched reluctance motor under field-oriented control are described. A speed-loop controller design based on field-oriented control and an algebraic optimization method is discussed. By using this new control method, the speed response and load disturbance rejection capability of the switched reluctance motor drive system are improved. In addition, two strategies are proposed to maintain the speed of the switched reluctance motor constant while one leg of the inverter is opened or shorted. These strategies allow the torque of the motor to be held constant in spite of such occurrences. Detailed implementation of this drive system is described. Experimental results have validated the theoretical analysis.     

交直流轮对电机跑合试验台控制系统设计

轮对电机组装完成之后,为了检查齿轮箱、电机轴承、轮对轴承等是否符合安装要求,需要对轮对进行跑合试验。从数据采集、交直流传动和智能测控这三个控制系统进行设计。数据采集系统设计采用传感器采集电机跑合过程中的振动、温度、转速等信号。交直流传动设计是为了满足交直流机车电机传动的需求。智能测控设计采用研华工控机作为控制终端,用MCGS组态软件和485通讯实现试验过程数据自动采集等功能。试验装置具备手动和自动两种功能,具有控制精度高等优点。     

SRM inverter topologies: a comparative evaluation

Several inverter power circuits suitable for switched reluctance motor (SRM) drives are analyzed and compared. Five inverter circuits are considered with the objective of establishing the most appropriate topology for an SRM drive. The comparison is based on the peak voltage and peak current ratings of the DC link components. Because the power converter choice depends on the motor design, the converter analysis and selection are done for a high-speed, 6/2 SRM suitable for a spindle drive and a high-torque 8/6 motor. Experimental results obtained for a high-torque drive are included     

Adaptive-backstepping-based design of a nonlinear position controller for an IPMSM servo drive

This paper presents the design of a novel nonlinear position controller for an interior permanent-magnet synchronous motor (IPMSM) servo drive. The motor model equations provide the basis for the proposed controller, which is designed with the adaptive backstepping technique. Various system uncertainties, particularly mechanical-parameter uncertainties, are incorporated in the design of the controller. Using Lyapunov's stability theory, it is verified that the control variables are asymptotically stable. The complete drive system is then simulated with MATLAB/Simulink software. Performance of the proposed adaptive-backstepping-based nonlinear position controller (ABNPC) is investigated under different dynamic operating conditions such as step changes in command positions, step changes in load, and parameter variations. The results indicate that the proposed ABNPC-based IPMSM drive could be a candidate for real-time industrial servo motor drive applications.     

电动自行车用无刷直流电动机及其驱动系统

介绍电动自行车用高效外转子NdFeB永磁无刷直流电机的结构和电磁设计的特点，开发了基于专用集成电路MC33035的驱动系统，并进行了试验，试验结果表明，该永磁无刷直流电机系统具有高效、简便、控制灵活的特点。     

Motor design features for adjustable-frequency drives

The advantages of having a motor specifically designed for adjustable-frequency drive systems are listed. Some of the design parameters that can be changed to make motors more compatible with the nonsinusoidal current and voltage waves generated by these drive systems are detailed. It is suggested that users and the motor industry combine to encourage these improvements     

Flux-Switching Motors for Automotive Applications

This paper presents a new class of brushless motor as an alternative to the permanent-magnet brushed motor used in the automotive industry. The new flux-switching motor is a very simple motor to manufacture, and, coupled with a powerelectronic controller requiring only two power semiconductor switches, it has the potential to be extremely low cost in high volume applications. The design of the motor and its simulation using coupled circuit and time-stepping finite-element analysis is presented. Tested performance has matched well with design targets and with simulation and is delivering performance comparable to a permanent-magnet brushed motor. The new motor and drive are very robust, requiring only two power MOSFETS and a simple microcontroller to create an extremely low-cost variable-speed drive for automotive applications.     

Optimal Characteristics of a Variable-Frequency Centrifugal Pump Motor Drive

Efficient variable-frequency control of the centrifugal pump drive motor is preferable to fluid control by a throttling valve or a bypass valve in many applications. The properties of the centrifugal pump as a motor load are discussed and the implications for the drive design. Also discussed are other properties of the motor drive in a pumping system such as startup behavior, response to pump overload, and loss of priming fluid as well as its characteristics as a control system element. Since fans and centrifugal blowers are similar in operation to centrifugal pumps, much of this discussion is also applicable to them. The aim is to give the specifier of pumping system components a set of criteria with which to judge the suitability of a given motor drive algorithm for his pumping application.     

模块化多电平高压变频技术研究综述

模块化多电平换流器(MMC)作为一种新型高压大功率拓扑结构,不仅在直流输电领域中获得广泛关注,也在高压变频领域颇具应用前景。与传统的高压变频器拓扑相比较,模块化多电平换流器在灵活性、可靠性、电压波形质量、输入变压器设计、电压功率等级等方面均展现出一系列技术优势。为促进中国高压变频技术的发展,对MMC变频器的电路特点、子模块结构、调制方法、电容电压平衡策略、谐波分析、环流抑制、启动预充电、故障容错与可靠性、低频运行等方面的最新研究进展进行详细分析评述,并指出模块化多电平高压变频技术的研究难点与挑战。