【作者】 王琪；

【导师】 刘锦波；

【作者基本信息】 山东大学 ， 电力电子与电力传动， 2023， 硕士

【摘要】 随着电气化程度的提高和车载自动化设备的不断增多,特种车辆对电源容量和功率密度的需求也越来越大。车载无刷多相整流发电机具有结构简单、运行可靠性高、直流输出电压脉动小等优点,可以满足上述不断变化的要求。本文重点研究了一种爪极式车载无刷6相整流同步发电机,对其数学模型、各种定子绕组型式以及自动电压调节器(Automatic Voltage Regulation,AVR)进行了深入研究。主要内容如下:(1)首先对车载无刷多相整流发电机的结构和工作原理进行了讨论。(2)以双Y/相移30°、中性点独立定子绕组型式的无刷6相整流发电机为例,对包括开关和换流过程在内的各种运行模式进行了分析,并借助于模式分类法建立了用于分析畸变和直流脉动的无刷多相整流发电机开关数学模型。为了便于AVR的设计,进一步建立了无刷多相整流发电机的平均值数学模型。(3)在对电感参数以及运行模式分析的基础上,利用开关数学模型对各种不同定子绕组型式下无刷6相整流发电机的畸变和直流脉动的高频行为进行了深入研究,为定子绕组型式的选择提供了重要的理论依据。(4)利用无刷多相整流发电机的平均值数学模型设计了数字式AVR和控制算法,并对发电机与主机的CAN通讯方案进行了探讨。(5)利用Dspic30F4011设计并制作了数字式AVR样机,对各种方案的有效性、数字式AVR的性能以及CAN通讯方案进行了仿真和实验验证。更多还原

【Abstract】 With the improvement of electrification and the increment of on-board automation equipment,special vehicles have more requirements on power capacity and power density.Due to simple structure,high operational reliability,and small DC output voltage ripple,Brushless Multiphase Generator with Rectification Output(BMRG)can meet this ever-changing requirement.This thesis focuses on a type of claw-pole brushless six-phase synchronous generator with rectification output on-board vehicle,its mathematical model,various types of stator winding and automatic voltage regulator(AVR)are studied in deepth.Main contents are as follows:(1)Structure and operation principle of BMRG are discussed.(2)Taking rushless six-phase rectifier generator with double Y-connection,phase shift 30° between each other and independent neutral point stator windings as an example,various operation modes including switching and commutation processes are analyzed,and a switching mathematical model of BMRG for analyzing distortion and DC pulsation is established based on operation mode classification.In order to facilitate design of its AVR,average-value model of BMRG is also established.(3)Based on analysis of inductance parameters and operation modes,distortion and DC pulsation of brushless six-phase generators with rectification output using different types of stator windings are investigated according to their switching models,so as to lay a theoretical foundation for selecting type of stator windings.(4)Digital AVR and its control algorithm are designed based on average-value model of BMRG.Also CAN communication scheme between generator and main controller is discussed.(5)Prototype is designed and manufactured using Dspic30F4011.Effectiveness and performances of digital AVR and CAN communication are verified in simulation and experiment.更多还原