| 1. | Research and design of time domain simulation system for vehicle road stochastic irregularity
车辆道路模拟的计算机仿真系统设计研究 |
| 2. | Time domain simulation research on the dynamic responses and dynamic characteristics of mooring systems
系泊系统的时域仿真及其非线性动力学特性分析 |
| 3. | One is constant impedance modeling , the other is complicated load modeling . based on the time domain simulation , the sensitivity of stability margin with respect to node active and reactive power for the system with complicated load modeling is derived
结合时域仿真，本文提出了具有综合负荷模拟的暂态过程中发电机加速面积、减速面积、减速功率(稳定裕度)对网络节点有功、无功及变压器变比的灵敏度分析方法。 |
| 4. | Base on the theory analysis of the superconducting rsfq digital circuit model , wrspice is used to do time domain simulation of superconducting rsfq digital circuit in this paper , and superconducting jtl , buffer , rs flip - flop , t flip - flop , and or gate are acquired
在超导rsfq数字电路模型的理论分析基础上，论文中采用wrspice对超导rsfq数字电路进行时域仿真，得到了超导jtl传输线，缓冲器， rs触发器， t触发器，或门等基本逻辑单元电路以及电路参数。 |
| 5. | This thesis carries out studies around the impact of load characteristics on voltage stability - the key problem of power system voltage stability analysis . the impact of load characteristics on static voltage stability is analyzed with the methods based on v - p - and - v - q curves , and the dynamic voltage stability of different loads in the context of both small disturbances and large disturbances is studied with the method of time domain simulation
本文围绕电力系统电压稳定性分析中的关键问题-负荷特性对电压稳定性的影响这一问题展开研究,采用v - p , v - q曲线分析法分析了负荷特性对静态电压稳定性的影响,并采用时域仿真法研究了大扰动和小扰动下负荷的动态电压稳定性。 |
| 6. | Then small signal model for sepic - pfc converter as well as its control scheme is developed and used to optimize regulator ' s parameters . time domain simulations in detail of the converter are carried out and physical and mathematical explanations are given for the results of simulations
然后研究了sepic - pfc变换器的小信号模型并建立了系统的控制模型，根据控制模型对控制参数进行了优化设计。最后对系统进行了深入的时域仿真研究并给出了仿真结果的物理和数学解释。 |
| 7. | Applying normal form method , conventional eigenvalue calculation and prony analysis , small signal stability and time domain simulation can be combined efficiently . the proposed method can get nonlinear information which never obtained by past techniques , so it shows a new way for analyze oscillation problems in interconnected power systems
通过正规形方法、小信号稳定特征值计算技术、时域仿真、 prony分析的有机结合，达到小扰动和大扰动后低频振荡稳定性分析的统一，为互联系统低频振荡分析开辟了新的思路。 |
| 8. | Some practical method to lifting the rated capacity of vsc - hvdc is discussed . ( 4 ) the subsynchronous oscillation ( sso ) characteristics of a synchronous machine connected to a static var compensator is studied with the complex torque coefficient method realized by time domain simulation , and some important conclusions are obtained which can guide the design and operation of svcs to avoid sso problem
( 4 )基于时域仿真实现的复转矩系数法，对与静止无功补偿器svc相联接的同步发电机组的次同步振荡( sso )特性进行了深入的研究，得出了一些重要结论，可为svc的设计和运行提供避免sso的依据。 |
| 9. | The main works are organized as follows : based on the switching function method and time domain simulations , the small disturbance transfer a characteristic through the converter is analyzed . because of the modulation effect of the converter , the small disturbance in the shaft of turbine generator will induce ac voltage component with the same frequency as the disturbance on the dc side . and the resulted ac current on the dc side will have the similar frequency shift when transfers to the stator of the generator
主要内容包括： ( 1 )基于开关函数法和仿真分析，研究了机组转子上次同步频率的小扰动，在hvdc交直流两侧响应的频率特性- - - -转子上的小扰动经直流换流器调制后，将会在系统直流侧感应出与扰动同频率的电压分量；直流侧电流扰动反映到交流定子侧，也将发生频率偏移。 |
