【作者】 韦海荣；

【导师】 周波；

【作者基本信息】 南京航空航天大学 ， 电力电子与电力传动， 2002， 硕士

【摘要】 双凸极电机一种新型的交流调速电机，是交流电机调速与传动领域近年来继开关磁阻电机之后又一新的研究方向。永磁式双凸极电机(DSPM)是由美国著名电机专家T.A.Lipo等人于1992年首先提出的，并进行了初步的理论和实验研究。随后，我校自主提出了电励磁式双凸极电机，用励磁线圈代替永磁体。一方面降低了成本，提高了控制的灵活性，但另一方面其基本理论与永磁式双凸极电机有所区别。 本文的目的就是针对电励磁双凸极电机的运行原理和控制策略作初步的探讨和研究。本文首先介绍了电励磁双凸极电机的静态特性和线性数学模型，在此基础上结合分裂电容式三相半桥电路提出了该电机的控制方法。其次，由于电励磁双凸极电机电感随角度变化，使得对调速系统的动静态分析和系统参数设计造成了很大困难。针对这一问题，本文提出了等效电感的方法，构造了电机的简化模型，从而能够方便的分析系统的运行特性和进行系统参数设计。另外，本文分析了在两种电流控制方式下，即PWM控制和滞环控制下电流脉动和相绕组电压、相电流、转速和开关频率的关系。本文最后介绍了系统的硬件电路设计，给出了系统的实验波形，以验证理论分析和数字仿真的正确性。更多还原

【Abstract】 At present, the double salient motor has received more and more research efforts. Especially, the double salient permanent magnet motor (DSPM) was introduced by A.lipo, the famouse motor control expert, in 1992. Recently, a new motor named Double Salient Electro-magnentic Motor was invented by NUAA. It replaces permanent magnet by field winding, which allows it to take advantage of low cost, complexity of control. But on the other hand, its basic principals are different from DSPM.It is the purpose of this paper to reveal the basic operation principals. At first, its statistic character and lining module are introduced, based on which the basic operation principals will be illustrated integrated with the three phase half-bridge converter. Secondly, because of changeable inductor, it is difficult to analysis the action of system. So the equeivelent inductor will be illustrated and the simplified module will be constructed. Thirdly, current ripple will be calculated in two current control mode respectively and paper will make a conclusion about its interaction with the voltage, current, frequence and so on . Finally this paper will show the design of the controller and test waveforms.更多还原