| 1. | All digital excitation device for synchronous motor and its application
全数字同步电动机励磁装置及其应用 |
| 2. | But the problems in the control system of excitation device such as its robustness , fast response and efficiency are still not well resolved
然而励磁系统控制中的鲁棒性、快速性和有效性问题却一直未曾得到很好的解决。 |
| 3. | Among these methods to improve stability of generators , one of the most efficient and economic way is to make the performance of excitation device better , which has been acknowledged generally
在诸多改善发电机稳定性的措施中，提高励磁系统的控制性能，被公认为最有效和经济的措施之一。 |
| 4. | With the characteristics of sensitive reaction and good regulation performance , the microcomputer excitation device is an accessory product with necessary protective measures to ensure that the system is stable and suitable for automatic operation of the unit
微机励磁装置是为中、小型水轮发电机配套设备产品，具有反应灵敏，调节性能好的特点，且具备必要的保护措施，保证系统稳定和适宜于机组的自动化运行。 |
| 5. | The smaller interval is the larger power output is . so in order to be the largest power output , the structure should be as small as possible . as far as the instantaneous heating electromagnetism vortex water heater is concerned , the power which the excitation device outputs is too small , so we adopt two e
又由于对于即热型电磁涡流热器来说，单个励磁装置输出的功率过小，达不到加热的目的，因而木电磁涡流热水器采用两套励磁装置，进行双面加热，每块涡流加热扳的两表面均有水流过，即整体上采用双面加热，四面过流的结构方式。 |
| 6. | Through the deep study of f . d . demello dynamic model of electromechanical transition and synchronous generator theory , we proposed a new control strategy of excitation device that can eliminate the negative - damping phenomenon , which is directly against the cause of producing negative - damping represented as low frequency oscillation in the system
通过深入研究f . d . demello机电暂态的动力学模型以及同步发电机理论，针对系统产生负阻尼即低频振荡的原因，我们提出了一种新的可消除负阻尼现象的励磁控制策略。 |
