Its operation characteristics and possible problems, such as power harmonic and system stability, are widely studied in the whole world.
其运行特性以及可能存在的电力谐波、系统稳定性等一系列问题是人们广泛关注的课题。
To analyze harmonic accurately is significant to the stability of power system.
准确的谐波分析对电力系统稳定具有重要意义。
An improved adaptive harmonic detection method based on least squares algorithm was presented, its stability is proved by averaging theorem of dynamical system theory.
提出了一种基于最小二乘法的自适应谐波检测方法，并利用动力系统的均值理论证明了该方法的稳定性。
The features of vibration stability and restoring forces of FPS under harmonic excitations are analyzed.
计算分析了FPS系统在简谐激励作用下的稳定性及恢复力特性。
For decreasing the probability of harmonic instability and guaranteeing the safety and stability of HVDC's operation, it is necessary to research the harmonic instability deeply.
为减小谐波不稳定发生的概率，保证直流系统运行的安全、稳定性，对谐波不稳定现象进行深入研究是十分必要的。
In this paper the lateral dynamic stability problem for a structure subjected to vertical harmonic load is studied.
本文研究在竖向谐荷载作用下结构的横向动力稳定问题。
Brief reviews about elastic stability, free vibration, transient dynamic response and harmonic dynamic response of circular cylindrical shells are given first.
本文首先对圆柱壳的稳定性、自由振动、瞬态和稳态动力响应研究进行了简要回顾和评述。
To study the stability of periodic motions the harmonic balance method is used. The condition for the stability of periodic motions can provide a theoretical basis for the design of rotor systems.
在分析周期运动的稳定性时，采用谐波平衡方法，得到转子周期运动的稳定条件，为工程设计提供了一定的依据。
The inverse function of inverter under non load is used to obtain stability and satisfactory harmonic rejection.
采用了逆变器传递函数的逆函数来获得足够的稳定性和谐波抑制能力。
The frequency stability, amplitude stability and harmonic content can be deduced from the second order perturbation solution of that equation.
方程的二阶近似解显示出非线性效应对振荡频率稳定度、振幅稳定度及波形正弦纯度的影响。
This thesis builds a simple mathematical model for the controllable principle, transient stability and harmonic waves of the DFIG, and analyses them.
本文对双馈发电机的控制机理、稳定性和谐波成分建立简单的数学模型，进行了一定的分析。
Experiments prove that the design has the advantage of simple structure, highly stable frequency, less harmonic component, better stability, which can fulfill the test requirement.
实验证明，该设计结构简单，频率稳定度高，谐波分量少，可靠性好，满足测试要求。
Experiments prove that the design has the advantage of simple structure, highly stable frequency, less harmonic component, better stability, which can fulfill the test requirement.
实验证明，该设计结构简单，频率稳定度高，谐波分量少，可靠性好，满足测试要求。
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