| 1. | Study on harmonic armature reaction of brushless ac amp; amp; dc generator
直流发电机谐波电枢反应研究 |
| 2. | Armature reaction inductance
电机子反作用 |
| 3. | The changing law of the synchronous armature reaction reactance parameter of the rare - earth permanent magnet synchronous machines is given out by analyzing the testing data , and the reliability of the testing instrument is proved by the experiment
通过对测试系统所测数据的分析研究，总结出了稀土永磁同步电机的电枢反应电抗参数的变化规律，并通过实验验证测量装置的可靠性。 |
| 4. | On the analysis of the data acquired with this system , the paper arrived at some rules on the armature reaction reactance of rare - earth pmsm , and testified its reliability by experiment in this paper , four parts are included : 1
通过对测试系统所测数据的整理，总结出了稀土永磁同步电机的电枢反应电抗参数的变化规律，并结合实验验证了系统的可靠性。本文共分四章，主要工作可以归纳为： 1 |
| 5. | Abstract : first , the key magnet statuses and their pertinent mmf . position of exterior rotor brushless dc motor are described in this paper . second , the air - gap magnetic field and the armature reaction of the three - phase six - step exterior rotor brushless dc motor used in electrical bicycle are analyzed by means of mmf . vector , mmf . integration and magnetic field fem respectively . some valuable conclu - sions for designing this kind of motor are obtained
文摘:给出了外转子无刷直流电动机的典型磁状态及其对应的磁势矢量位置，并用磁势矢量合成法、磁势积分法及电磁场的有限元方法对电动自行车用三相六状态外转子无刷直流电动机的气隙磁场及电枢反应进行了详尽的分析，从而得到有益于该种电机设计的结论。 |
| 6. | The two key parameters , back electromotive force ( emf ) and reactance of d q axial armature reaction are investigated , too . in the process of asynchronous starting , mathematics model of repmsm is established with 1 , 2 , 0 complex number coordinate system . combined with the model , electromagnetic torque is studied
论文还研究稀土永磁同步电动机的异步起动过程，建立了稀土永磁同步电动机起动时的数学模型，并对电磁转矩的性质进行了研究，论文还提出了起动时电磁转矩的计算方法，论文对稀土永磁同步电动机的牵入同步过程进行了原理性分析，论文也对电机参数对于电机起动性能影响进行了研究。 |
| 7. | There are four main parts in the paper , i . e . first of all , the dissertation studies the steady - state performance of repmsm with the theory of vector graph and equivalent electro circuit . characteristic of power angle , determinant of static of motor moving , losses and armature reaction are analyzed in this part
论文研究稀土永磁同步电动机的稳态性能，结合向量图和等值电路理论对稀土永磁同步电动机稳定运行进行了深入细致的分析，包括功角特性，电机运行状态的判定，损耗和电枢反应等稀土永磁同步电动机自身具有的特点。 |
| 8. | Lastly the nonlinearity of armature reaction of the dc motor is considered , a variable structure controller is designed based on the feedback linearization method , moreover , a robust controller is designed which can restrain the uncertainty bought by the load disturbance and the nonlinearity of armature reaction simultaneously
最后，针对直流电机速度控制系统存在电枢反应非线性，设计了基于反馈线性化的变结构鲁棒控制器和一种能同时满足抑制负载扰动和电枢反应非线性引起的不确定的鲁棒控制器。 |
| 9. | The equipments and methods were on the level of manual operation , hi this paper , author paid a systemic research into three kinds of measure means : direct current attenuation method , voltage integral method , and direct load method ; theoretically analyzed the measure methods of synchronous armature reaction reactance , and even developed a test system to automatically measure the synchronous armature reaction reactance
作者对直流衰减法、电压积分法和直接负载法这三种测试方法的测试原理进行了较为深入、系统的研究，从理论上分析了同步电枢反应电抗参数的测试方法，并在此基础上开发出能够自动进行同步电枢反应电抗参数测试的系统。 |
| 10. | To achieve the flux - weakening control for a pmbldcm on the base of hybrid rotor structure , the paper proposes an effective control strategy - " twain mode control " : adopting pwm method to achieve constant torque operation blow the base - speed , and regulating the phase angle of current leading emf to gain the equivalent demagnitigation of armature reaction and to achieve constant power operation above the base - speed . the control system composed by dsp + ipm realized this control strategy successfully and achieved nearly three - time flux - weakening operation speed region with constant power
本文通过大量的文献资料阅读，在对永磁无刷直流电机的发展和现状有了一个整体了解的基础上，针对复合式转子结构永磁无刷直流电机研制了一套弱磁恒功率控制系统，提出一种“双模控制”的控制策略，成功的实现了基速以下恒转矩控制，基速以上弱磁恒功率控制。 |
