基于电感曲线优化的开关磁阻发电机效率提升设计方法研究

发布时间：2018-12-13 09:05

【摘要】：开关磁阻电机起源于十九世纪,目前已经被应用于航空航天,电动车,纺织,焦炭等多个领域。由于具有的结构简单,易于控制,容错性能良好等特点,开关磁阻电机已经引起广泛关注,并且在发电领域具有广阔前景。在世界能源问题日渐突出的今天,提高设备效率不失为一种现实选择。同时由于风力、水利发电等对于发电机的要求,提高开关磁阻发电机的效率有着重要意义。本论文基于现存的3.5kW,12/8结构的开关磁阻电机,以提升发电效率为目的,针对电机本体优化设计展开较为详细的讨论,并且进行了相关理论分析及其仿真计算。首先,对开关磁阻电机的结构,电动运行原理,发电运行原理做出阐述,建立数学模型,并对其发电原理着重进行讨论。为提高开关磁阻电机的发电效率,通过ANSYS对样本开关磁阻电机进行有限元分析,以样本电机的电感曲线为基础设计了六种电感曲线变形。之后基于二维查找表模块建立开关磁阻电机的SIMULINK非线性仿真模型,以验证不同电感曲线下开关磁阻电机的发电效率,并依据发电效率确定最优电感曲线。通过仿真获取开关磁阻电机形变与电感曲线改变之间联系,以最优电感曲线为优化设计目标,对电机本体进行优化设计。最终对优化后开关磁阻电机进行有限元分析以及效率仿真,以验证优化设计方法的正确性与可行性。本论文对开关磁阻发电机优化设计取得了良好的效果,验证了该优化设计方法的可行性,为开关磁阻发电机本体的优化设计提供了借鉴意义。
[Abstract]:Switched reluctance motor (SRM) originated in the 19th century and has been used in many fields such as aerospace, electric vehicle, textile, coke and so on. Because of its simple structure, easy control and good fault-tolerant performance, switched reluctance motor (SRM) has attracted wide attention and has broad prospects in the field of power generation. In the world energy problem is becoming increasingly prominent today, improving equipment efficiency is a practical choice. At the same time, it is of great significance to improve the efficiency of switched reluctance generators due to the requirements of wind power and hydropower generation. Based on the existing 3.5kW / 12 / 8 switched reluctance motor (SRM), in order to improve the efficiency of generating power, the optimization design of the motor body is discussed in detail, and the related theoretical analysis and simulation calculation are carried out. Firstly, the structure of switched reluctance motor (SRM), the principle of electric operation and the principle of power generation are expounded, the mathematical model is established, and the principle of power generation is discussed emphatically. In order to improve the generation efficiency of switched reluctance motor, the finite element analysis of the sample switched reluctance motor is carried out by ANSYS. Six kinds of inductance curves are designed based on the inductance curve of the sample motor. Then the SIMULINK nonlinear simulation model of switched reluctance motor is established based on the two-dimensional lookup table module to verify the generation efficiency of switched reluctance motor under different inductance curves and to determine the optimal inductance curve according to the generation efficiency. The relationship between the deformation of switched reluctance motor and the change of inductance curve is obtained by simulation. The optimum inductance curve is taken as the objective of the optimal design and the optimum design of the motor body is carried out. Finally, finite element analysis and efficiency simulation are carried out to verify the correctness and feasibility of the optimized SRM. This paper has achieved a good effect on the optimal design of switched reluctance generator, verified the feasibility of the optimization design method, and provided a reference for the optimization design of switched reluctance generator body.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM31

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