| 1. | They are adaptable not only for small signal stability analysis , but also for large signal stability analysis
它不仅适用于小干扰稳定分析，也适用于大干扰稳定分析。 |
| 2. | The method of hvdc small signal modulation is applied to enhance the small signal stability of the system ; the results are investigated based on the prony method
采用prony方法，研究了直流小信号调制对提高低频振荡阻尼的作用。 |
| 3. | Meanwhile , small signal stability of the system with associated feedback control is similar to that with all state variable feedback control
从特徵值比较看，关联测量分散励磁控制下的小干扰稳定性可以接近全状态量反馈控制时的性能。 |
| 4. | Due to large scale and complexity , conventional small signal stability analysis cannot meet the demand of plan , design and operation of the power grid
随着系统规模和复杂程度的不断增加，传统的小信号稳定分析已经不能满足电力系统规划、设计和运行的需要。 |
| 5. | The study cases show that the test signal method developed in this paper can be effectively applied in small signal stability analysis and pss design
理论分析和算例仿真结果均表明本文提出的测试信号法能够方便有效地应用于电力系统小扰动稳定性分析和电力系统稳定器( pss )设计。 |
| 6. | Although eigenvalue method is the traditional method for power system small signal stability analysis , its application is limited by the problem of large quantities of computation when analyzing bulk power systems
传统的电力系统小扰动稳定性分析法是特征值法，但分析大规模电力系统时遇到的计算量过大问题限制了它的应用。 |
| 7. | Eigenvalue sensitivity analysis has been widely used in power system dynamic studies and the controller designs , becoming an indispensable tool in power system small signal stability analysis
摘要特徵值灵敏度分析已广泛应用于对电力系统中控制元件的选址和控制系统的参数设计，特徵值灵敏度已成为电力系统小干扰稳定控制设计时一个不可缺少的重要工具。 |
| 8. | Inconsistency may exist under small signal stability analysis of ueps . structure preserved energy function method uses dae model in actual application , this may lead to sib and make the result pessimism with respect to simulation method
而由于结构保持能量函数在实际使用中采用微分-代数方程模型，故可能导致奇异诱导分岔，并使计算结果相对于仿真方法偏于保守。 |
| 9. | Based on the review and present tendency analysis for small signal stability research , in this thesis , the reduced - order analysis method for small signal stability of multi - machine power system using detail model is researched
本文在回顾分析电力系统小扰动稳定研究的发展历程及其研究现状的基础上，开展了基于详细模型的多机电力系统小扰动稳定降阶分析方法的研究工作。 |
| 10. | This method can not only avoid losing eigenvalues but also improve the calculational precision of electromechanical modes . the method of frequency domain analysis does n ' t reach the applied requirement for project in the small signal stability of multi - machine power system
这种基于精确等效二阶模型的多机系统机电模式计算方法，一方面有效地避免了采用传统矩阵法提供机电模式迭代初值时存在的特征值“丢失”现象，另一方面提高了机电模式的计算精度。 |
