| 1. | Discussion of several analytical approaches and tools about subsynchronous resonance 几种次同步振荡分析方法和工具的阐述 |
| 2. | These models have enough precision in subsynchronous oscillation ( sso ) problem analysis 这种模型对于分析次同步振荡( sso )问题,具有足够的精度。 |
| 3. | Subsynchronous resonance ( ssr ) is a quite hazardous state easily encountered in power systems 次同步振荡( ssr )是电力系统运行中可能出现的一种相当危险的状态。 |
| 4. | Design of supplemental sub - synchronous oscillation damping control based on h robust control theory of hvdc system 鲁棒控制理论的高压直流输电系统附加次同步振荡阻尼控制设计 |
| 5. | Light is a wave composed of coupled electric and magnetic fields oscillating in synchrony at very high frequencies 光是一种由电场与磁场耦合在一起进行高频同步振荡所形成的波。 |
| 6. | This simplification principle is the foundation of the following analysis . using the test signal method , a detailed analysis of subsynchronous oscillation for a hvdc system is performed ( 3 )对一个仅含有直流输电线路的系统,采用复转矩系数- - - -测试信号法,对其次同步振荡特性进行了分析。 |
| 7. | Then the different behaviors between fixed series capacitor and tcsc are compared aiming at ssr , when they are individually applied to typical model of ieee second benchmark on subsynchronous resonance 继而以ieeesecondbenchmarkonsubsynchronousresonance典型模型为例,比较了固定电容串补与可控串联补偿在模型系统中针对同步发电机次同步振荡这一行为所造成的差异表现。 |
| 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. | On the contrary , because of the effect of positive damping provided by the inverter , the unit near a inveter will have no subsynchronous oscillation risk . based on the same method described above , a damping study is carried out for a hybrid ac / dc system , which include a hvdc link and an ac transmission line in parallel 研究表明,系统整流站附近的同步发电机组要承受电气负阻尼作用,因此有可能引起机组低频扭转振荡模式失稳;而hvdc的逆变站向其临近同步发电机组提供正阻尼,因而机组不存在次同步振荡危险。 |
| 10. | This paper also studies an hvdc system based on leee fbm , a svc system based on ieee fbm and a statcom system based on ieee fbm . it proves the function of supplementare subsynchronous damping controller ( ssdc ) in the above devices to mitigate ssr . it also analyzes the influence of input signal of ssdc on ssr mitigation , tdeng hvdc as an example 在psasp小干扰线性化平台psaspaisst上,对基于ieeefbm的hvdc系统、基于ieeefbm的svc系统和基于ieeefbm的statcom系统分别进行了ssr小干扰稳定分析,验证了在这些装置中安装次同步振荡阻尼器( ssdc )对r的抑制作用,并以hvdc为例,研究了ssdc输入信号对其抑制ssr的影响。 |