1) stability boundary
稳定域边界
1.
According to theoretical foundation on stability regions estimation,two kinds of method for determining stability boundary of power systems are expounded.
从稳定域估计的理论依据出发,详细分析了基于Lyapunov函数和基于非线性系统稳定域边界拓扑特征的两类方法,其中绝大多数方法都是在已知主导不稳定平衡点的前提下确定稳定边界的,而主导不稳定平衡点的确定在大规模电力系统中是一个非常困难的问题。
2.
The method is based on the theory of stability boundary of nonlinear systems, combining with the stability control measures.
提出了一种电力系统紧急控制中寻找切机/切负荷方案的新方法,该方法将非线性系统稳定域边界理论与稳定控制措施结合起来,通过控制措施所引起的系统平衡点的位移在稳定域边界外法向量方向上的投影来表征控制措施的有效性。
3.
According to the theory of stability boundary of nonlinear system,the stability boundary of a disturbed system is the union of the stable manifold of the unstable equilibrium points(UEP) on the stability boundary.
根据非线性系统稳定域边界理论 ,非线性系统在系统稳定边界上不稳定平衡点处的不变稳定流形的集合为受扰动后系统的稳定边界 ,某不稳定平衡点处的稳定流形可以通过对非线性系统进行特定的线性及非线性变换求得。
2) stability boundary
稳定边界
1.
A new method based on adjoint system and minus system to compute unstable equilibrium points on the stability boundary of power system classical model is proposed.
提出一种基于伴随系统和变号系统的求解电力系统经典模型稳定边界上不稳定平衡点的方法。
2.
Firstly, the Taylor series solution of a partial differential equation is used to approximate the stability boundary in the neighborhood of an unstable equilibrium point.
依据非线性系统理论,稳定边界由该稳定边界上的所有不稳定平衡点的稳定流形的并集构成。
3.
The characteristic invariant manifolds are some special low-dimensional invariants on the stability boundary.
电力系统暂态稳定边界可信域的研究对确定近似边界的适用范围有十分重要的意义。
3) stable boundary layer
稳定边界层
1.
The characteristics of temperature structure of the stable boundary layer(SBL)and convective boundary layer(CBL)are simulated by controlling temperature of the top and bottom of the laboratory water tank.
通过加热以及制冷手段控制水槽的顶部和底部温度,模拟暖空气均匀越过冷空气表面条件下的稳定边界层(SBL)温度场结构特征,以及平坦下垫面均匀加热条件下的对流边界层(CBL)温度场结构特征,并测量两种情况下的平均温度和热通量垂直廓线,分析对流混合层发展的演变过程。
4) non-stable boundaries
非稳定边界
1.
Substance, energy and information can exchange between simulation area and outside through non-stable boundaries and it is difficult to describe the exchanging rule accurately.
非稳定边界是指,模拟流场和外部环境通过它进行的物质、能量和信息交换具有重要影响且该交换规律难以准确刻画的边界。
5) stable boundary principle
稳定边界法
1.
According to the stable boundary principle,this paper introduces how to reduce and validate the PID controller parameter with the help of MATLAB tool taking a certain control model as an example.
根据稳定边界法则,以某一控制模型为例介绍如何在MATLAB工具帮助下整定并验证PID控制器参数。
6) Stability map
稳定边界图
补充资料:超导电性的局域和非局域理论(localizedandnon-localizedtheoriesofsuperconductivity)
超导电性的局域和非局域理论(localizedandnon-localizedtheoriesofsuperconductivity)
伦敦第二个方程(见“伦敦规范”)表明,在伦敦理论中实际上假定了js(r)是正比于同一位置r的矢势A(r),而与其他位置的A无牵连;换言之,局域的A(r)可确定该局域的js(r),反之亦然,即理论具有局域性,所以伦敦理论是一种超导电性的局域理论。若r周围r'位置的A(r')与j(r)有牵连而影响j(r)的改变,则A(r)就为非局域性质的。由于`\nabla\timesbb{A}=\mu_0bb{H}`,所以也可以说磁场强度H是非局域性的。为此,超导电性需由非局域性理论来描绘,称超导电性的非局域理论。皮帕德非局域理论就是典型的超导电性非局域唯象理论。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条