降低潜水电机附加损耗的定转子槽形优化研究

发布时间：2018-01-04 01:33

本文关键词：降低潜水电机附加损耗的定转子槽形优化研究　出处：《合肥工业大学》2016年硕士论文　论文类型：学位论文

【摘要】：电机的附加损耗是指除去基本铁耗、基本铜耗和机械损耗外的所有损耗,其数值大小影响着电机的效率与温升。随着社会各界对节能和环保要求的提高以及当前国民生产生活中对电机的性能要求的提升,降低电机的附加损耗成为电机行业内一项重要的研究目标。潜水电机作为笼型感应电机的一种,广泛的应用在抢险防洪、农业灌溉和生活供排水等重要场合。本文以干式潜水电机为例,研究了笼型感应电机附加损耗与定转子槽形之间的关系,并对以降低附加损耗为目标的槽形优化进行了探讨。主要工作内容如下：(1)分析潜水电机的发展动态,尤其对潜水电机的结构特点进行研究和对比。探讨电机附加损耗的研究状况,对附加损耗的产生原因、影响因素、计算方法以及降耗措施进行详细的分析和总结。讨论了通过优化定转子槽形来降低附加损耗的可能性和其优点所在。(2)以1000kW,10kV的干式潜水电机为例,利用解析法和有限元法分别对其附加损耗进行详细的实例计算,并对结果进行对比和分析。(3)通过建立多个不同定转子槽形和尺寸的电机模型,利用二维有限元法对其电磁场分布和附加损耗情况进行分别计算,分析附加损耗与槽形及尺寸间的关系,并对其变化趋势进行拟合和预测,以此寻找对应于附加损耗最小的最优槽形和最佳尺寸。(4)根据得到的附加损耗与定转子槽形及尺寸间的关系,并考虑电机设计的其他要求,探索出一种新的槽形优化方法,在不改变电机其他性能的基础上使得电机的附加损耗降为最低。
[Abstract]:The additional loss of the motor refers to all the losses except for the basic iron consumption, the basic copper consumption and the mechanical loss. Its numerical value affects the efficiency and temperature rise of the motor. With the improvement of energy saving and environmental protection requirements from all walks of life and the improvement of the performance requirements of the motor in the current national production and life. Reducing the additional loss of the motor has become an important research objective in the motor industry. As a cage induction motor, submersible motor is widely used in emergency flood control. Taking dry submersible motor as an example, the relationship between additional loss of cage induction motor and stator and rotor grooves is studied in this paper. The optimization of grooves with the aim of reducing additional loss is discussed. The main work is as follows: 1) the development trend of submersible motor is analyzed. In particular, the structural characteristics of submersible motor are studied and compared. The research status of additional loss of submersible motor is discussed, the cause of additional loss and the influencing factors are discussed. The calculation method and the measures of reducing consumption are analyzed and summarized in detail. The possibility of reducing the additional loss by optimizing the stator and rotor grooves and its advantages are discussed. The additional loss of 10 kV dry submersible motor is calculated by using the analytical method and the finite element method respectively. The results are compared and analyzed. (3) by establishing many motor models with different stator and rotor grooves and sizes, the electromagnetic field distribution and additional loss are calculated by using two-dimensional finite element method. The relationship between additional loss, groove shape and size is analyzed, and its changing trend is simulated and predicted. According to the relationship between the additional loss and the groove shape and size of stator and rotor, the other requirements of motor design are considered. A new groove optimization method is developed to minimize the additional loss of the motor without changing the other performance of the motor.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM346

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