混合动力汽车用双凸极式永磁双转子电机的研究

发布时间：2018-01-16 02:36

本文关键词：混合动力汽车用双凸极式永磁双转子电机的研究　出处：《江苏大学》2014年博士论文　论文类型：学位论文

【摘要】：随着混合动力汽车(Hybrid Electric Vehicle, HEV)的发展,混合动力耦合系统得到了广泛关注,逐渐成为混合动力汽车领域的研究热点之一。在该系统中,按照完成混合动力系统中两种动力源的合成与分配的核心部件的类型分类,混合动力耦合系统主要有采用行星齿轮的机械式混合动力耦合系统和采用双转子电机的电磁式混合动力耦合系统两大类。前者是目前混合动力耦合系统的主流方案,技术较为成熟且已经成功应用于实际车型；后者则是利用双转子电机采用电磁耦合的方式实现转矩的传递和能量的合成,从而省去行星齿轮等机械部件,为混合动力的能量合成与分配提供了新的解决方案,该系统由于还具有结构紧凑、控制灵活、维护方便等优势,是目前混合动力汽车领域的又一发展方向之一。本文针对电磁式混合动力耦合系统,提出了一种新型双转子电机,即双凸极式永磁双转子电机(Double-Salient Permanent-Magnet Double-Rotor Motor, DSPM-DRM),进行了深入系统的理论分析和实验研究,论文主要研究成果包括以下几个方面：一、针对HEV应用特点,将“双转子电机理论”融入定子永磁型电机,提出了一种具有创新型结构的双凸极式永磁双转子电机。该电机具有两个转子和两层气隙且永磁体内置于定子和内转子的特殊结构,通过有限元法精确计算了电感参数、空载反电势、气隙磁密等电机的关键磁性能参数,评估了内、外磁场的耦合程度,为建立DSPM-DRM的数学模型,实现DSPM-DRM的精确控制奠定了理论基础。二、建立了该类DSPM-DRM的电磁分析、优化设计的一般方法。在深入分析双转子电机运行机理的基础上,借鉴定子永磁型电机的设计理论,提出了DSPM-DRM的电机的功率方程、尺寸方程。为有效提高该类电机的电磁性能,研究中以“减小输出转矩脉动”和“提高转矩密度”为优化目标,通过建立DSPM-DRM的参数化优化设计模型,采用遗传控制算法(Genetic Algorithm, GA)实现了电机的多目标优化设计。在此基础上,设计、加工制造了一台混合度大于50%的小功率实验原理样机。三、基于MATLAB建立了DSPM-DRM系统的仿真模型,提出了双转子电机运行的基本控制策略。针对DSPM-DRM在混合动力汽车中的应用特点,仿真分析了在HEV的不同典型工况下DSPM-DRM的多种工作运行模式：起动运行、纯电动驱动、混合驱动等,从理论上分析和验证了该类双转子电机的混合动力合成的基本原理,为后续实验分析奠定了理论基础。四、基于ADVISOR仿真平台,通过深度二次开发构建了基于DSPM-DRM的HEV整车仿真系统模型。选择在相同的典型循环测试工况下,从动力性能和燃油经济性等方面,详细分析了该类双转子电机的性能,并与目前主流的混合动力汽车动力合成性能进行了对比分析和研究,研究结果进一步验证了采用DSPM-DRM的电磁式混合动力耦合系统的可行性。五、搭建了基于小功率实验原理样机DSPM-DRM的动力混合系统实验平台,对实验原理样机进行了实验测试和功能性验证,完成起动运行、纯电动驱动、混合驱动等多种典型工况的实验与分析。实验结果验证了理论分析的正确性、样机设计和控制策略的合理性,也为下一步DSPM-DRM在HEV中的应用研究提供了理论基础和技术支持。
[Abstract]:With hybrid cars (Hybrid Electric Vehicle, HEV) the development of hybrid coupling system has received wide attention, has become a hot research topic in the field of hybrid vehicles. In the system, in accordance with the classification of core components to complete the synthesis and distribution of two kinds of power source of hybrid systems, hybrid coupling system a mechanical hybrid coupling system adopts the planetary gear and the use of electromagnetic coupling hybrid system of double rotor motor two categories. The former is the current mainstream hybrid coupling system, technology is more mature and has been successfully applied in practical models; the latter is synthesized by using the electromagnetic coupling of the double rotor motor torque method the transfer and energy, thus eliminating the need for planetary gears and other mechanical components, provides a new solution for the synthesis and distribution of hybrid energy Because of flexible solutions, also has the advantages of compact structure, the control system, convenient maintenance and other advantages, is the field of hybrid cars and a developing direction. Based on electromagnetic hybrid coupling system, put forward a new type of double rotor motor, namely doubly salient permanent magnet motor with double rotors (Double-Salient Permanent-Magnet Double-Rotor Motor, DSPM-DRM), carried out in-depth theoretical analysis and experimental study of the system, the main results of the research include the following aspects: first, according to the characteristics of HEV application, the double rotor motor theory into stator permanent magnet motor, an innovative structure of doubly salient permanent magnet motor with double rotors. The motor with two rotors and two layers of air gap and permanent magnet embedded in the stator and the inner rotor structure, through the finite element method to calculate the inductance parameters, no-load EMF, gas The key parameters of magnetic flux density of the motor, the evaluation, the degree of coupling between the external magnetic field, to set up a mathematical model of DSPM-DRM, to achieve a precise control of DSPM-DRM has laid a theoretical foundation. Two, established the DSPM-DRM electromagnetic analysis, the general optimization design method. In depth analysis of the basic operation of double rotor motor on the mechanism of reference design theory of stator permanent magnet motor, the power equation, DSPM-DRM equation. The size of the motor to improve the electromagnetic performance of the motor, in order to "reduce the output torque ripple and improve the torque density as the optimization objective, the optimization design model parameters DSPM-DRM the adopted control genetic algorithm (Genetic Algorithm GA) to realize the multi-objective optimization design of the motor. On this basis, the design and processing of small power experiment principle prototype of a hybrid of more than 50% manufacturing. Three, MATLAB simulation model was established based on DSPM-DRM system, puts forward the basic control strategy of double rotor motor operation. According to the features of application of DSPM-DRM in the hybrid vehicle, the simulation analysis of a variety of operating mode of DSPM-DRM in different working conditions under HEV: starting operation, pure electric drive, hybrid drive, and the validation of the double rotor motor hybrid synthesis principle based on the analysis of theory, laid the theoretical foundation for the analysis of subsequent experiments. Four, based on ADVISOR simulation platform, through the depth of two times the development of construction of HEV vehicle simulation system model based on DSPM-DRM. In typical cycle test under the same conditions, from the dynamic performance and the fuel economy and other aspects, a detailed analysis of the performance of this kind of dual rotor motor, and the current mainstream of the HEV synthesis performance of the score of Xi Heyan The research results show the feasibility of the use of electromagnetic coupling hybrid system DSPM-DRM. Five, to build a hybrid experimental power DSPM-DRM principle prototype system experimental platform based on the principle of the experimental prototype was tested and completed functional verification, starting operation, pure electric drive, experiment and analysis of several typical conditions the hybrid drive. The experimental results verify the correctness of the theoretical analysis, the rationality of the prototype design and control strategy, and provides a theoretical basis and technical support for the further application of DSPM-DRM in HEV.

【学位授予单位】：江苏大学
【学位级别】：博士
【学位授予年份】：2014
【分类号】：TM351;U469.7

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