| 1. | Various numerical simulations with electromagnetic transients analysis program ( emtp ) were made and the results were analysed
在对这些方法基本原理分析的基础上做了emtp数字仿真及结果分析。 |
| 2. | Meanwhile various numerical simulations with electromagnetic transients analysis program ( atp / emtp ) are made and the results are analyzed
并且对以上每种方法都做了atp emtp数字仿真和结果分析。 |
| 3. | The mathematical model of synchronous generator in the electromagnetic transient process and load of ship power station are given in this paper
本文给出了同步发电机电磁暂态过程实用模型和船舶电站负荷的数学模型。 |
| 4. | The performance of the proposed technique was simulated on the electromagnetic transient program , emtdc . the results of simulating show that the technique is effective and robust
本文在大型电磁暂态仿真软件emtdc的平台上进行了大量仿真，仿真结果验证了该方法的正确性。 |
| 5. | In addition , the electromagnetic transients of normal operating - current state , primary side large current fault state and primary side open - circuit fault state are simulated
对该电流互感器正常工作电流状态、一次侧大电流故障状态及一次侧开路故障状态的电磁暂态过程进行了仿真。 |
| 6. | According to the complicated electromagnetic transient state process of the passive feedback coils , a method that can be used to calculate the equivalent time constants and the electrical parameters are given in this paper . these parameters are important to the design of the device and the power system , and also provide the evidence for the experiment of controlling the plasma unstability
针对被动反馈线圈电磁暂态过程的复杂性，给出了求解线圈等效时间常数和电气参数的方法，这些参数不仅对装置的设计和电源系统的设计是重要的，而且为控制等离子体垂直位移不稳定性的实验提供了依据。 |
| 7. | ( 3 ) the law and characteristic of electromagnetic transient process for the switching overvoltage in the electric network of power stations have been studied by analyzing the electromagnetic transient process of switching overvoltage in power station and specially approaching the surge overvoltage transferred from the switchgear station through power transformers
( 3 )通过分析厂站操作过电压的电磁暂态过程及特性，特别是对超高压开关站中的操作过电压通过升压电力变压器传递的传递过电压进行分析研究，研究了厂站电气网络中过电压的电磁暂态变化规律及特性。 |
| 8. | Therefore , the main contents and the creative results of this paper are described as follows : ( 1 ) the on - line safety forecast theory for switching overvoltage of large power stations based on the field - circuit analysis is presented by analyzing the electromagnetic transient for electric network of large power stations
针对该研究课题，本文的主要内容及创新性成果如下： ( 1 )通过对大型电站电气网络电磁暂态过程的分析研究，提出了一种基于场路综合分析的厂站操作过电压在线安全预测理论。 |
| 9. | In this thesis we use electromagnetic transient program ( emtp ) to simulate and study those two kinds of overvoltage ; and research how to use moa and rc devices to reduce them basing on multi - exponential moa model and principle of rc device . at the same time , based on l - r damping principle , researches are made on the feasibility of restricting overvoltage by l - r device . thus methods of ensuring the parameters of these devices are concluded
本文利用电磁暂态计算程序（ emtp ）对上述两种过电压进行了模拟计算研究；同时，基于moa多指数模型和rc装置原理研究了如何使用moa和rc装置来对过电压进行限制；基于l - r阻尼原理探讨了使用l - r装置限制过电压的可行性；并得出了以上保护装置的参数确定方法。 |
