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voltage collapse point    
相关语句
  电压崩溃点
    Under the condition of suitable form ulation, the voltage collapse point and the left eigenvector ofthe dynam ic pow er system can be obtained by m eans of static pow er system m odel. The norm alvector to the bifurcation setis preferred to be used in optim um system controlnear bifurcation.
    在适当建模的情况下用静态模型求得系统的鞍结分岔点及其左特征向量,按此方向控制系统的行为可以最快地远离电压崩溃点
短句来源
    These years, more and more power researchers have realized that voltage stability in power systems is a dynamic phenomenon, and voltage collapse point is predicted in advance.
    近些年 ,越来越多的人认识到电力系统电压稳定问题是一个动态问题 ,而电压崩溃点是可以提前预知的。
短句来源
    In recent years, more and more researchers have realized that voltage stability of power system is a dynamic phenomenon, and voltage collapse point can be predicted in advance.
    近些年,越来越多的人认识到电力系统电压稳定问题是一个动态问题,而电压崩溃点是可以提前预知的。
短句来源
    Under the condition of suitable formulation,the power system can be away from the voltage collapse point,through controlling the left eigenvector of voltage collapse point.
    按照系统的鞍结分叉点处的左特征向量来控制系统的行为可以最快地远离电压崩溃点
短句来源
    The equivalence among the three indices can thus be found out. The method was also applied to the IEEE 14-bus system and the New England 10-generator 39-bus system,and the results prove that the three kinds of voltage stability indices are consistent at the voltage collapse point.
    利用上述方法对IEEE14节点算例系统和新英格兰10机39节点算例系统进行了分析,理论和算例都说明了在电压崩溃点处V-Q灵敏度、参与因子指标及负荷裕度灵敏度指标是互相吻合的。
短句来源
  稳定临界点
    A PRACTICAL DIRECT METHOD FOR VOLTAGE COLLAPSE POINT
    电压稳定临界点的实用直接法
短句来源
    In this paper,a direct method for static voltage collapse point in rectangle coordinate is presented.
    本文提出了在直角坐标系下静态电压稳定临界点的一种直接计算方法。
短句来源
  电压稳定临界点
    A PRACTICAL DIRECT METHOD FOR VOLTAGE COLLAPSE POINT
    电压稳定临界点的实用直接法
短句来源
    In this paper,a direct method for static voltage collapse point in rectangle coordinate is presented.
    本文提出了在直角坐标系下静态电压稳定临界点的一种直接计算方法。
短句来源
  稳定临界点
    A PRACTICAL DIRECT METHOD FOR VOLTAGE COLLAPSE POINT
    电压稳定临界点的实用直接法
短句来源
    In this paper,a direct method for static voltage collapse point in rectangle coordinate is presented.
    本文提出了在直角坐标系下静态电压稳定临界点的一种直接计算方法。
短句来源
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After the voltage collapse point being found in AC/DC power systems, the relation between left eigen-vector W* and voltage collapse boundary surface is used to calculate the optimal control vector to increase load power margin. And then, some measures to increase the load power margin and avoid voltage collapse in AC/DC power systems are studied in this paper.

在应用崩溃点法求得交直流联合系统电压崩溃点的基础上,利用左特征向量W*和电压崩溃边界曲面之间的关系计算出提高更直流联合系统负荷功率裕度的最优控制方向。在此基础上,研究可提高交直流联合系统负荷功率裕度、防止电压崩溃发生的交流系统措施和直流系统措施。

Based on the load nearest to the voltage collapse point acquired from the m ethod ofthe nearest voltage collapse point, this paper defines the static voltage stability proxim ity of the system according to the load pow er proxim ity. An optim alvoltage stability controlm athem aticalm odelis setup to enhance the system 's static voltage stability proxim ity. In this m odelthe objective function is taken as the com prehensive objective function, and the constraint is considered...

Based on the load nearest to the voltage collapse point acquired from the m ethod ofthe nearest voltage collapse point, this paper defines the static voltage stability proxim ity of the system according to the load pow er proxim ity. An optim alvoltage stability controlm athem aticalm odelis setup to enhance the system 's static voltage stability proxim ity. In this m odelthe objective function is taken as the com prehensive objective function, and the constraint is considered to be the controlvariables, the outputvariables, the transm itted pow erofthe branch and the staticvoltagestability power proxim ity. The concepts of the security-econom y coordination factor and the synthetic controladjustm ent sequence coefficient are put forw ard in the m athem aticalm odel, w hich m akes the m odelm ore practicable.

在系统最近崩溃点的基础上,以系统的负荷功率裕度定义了系统的静态电压稳定裕度。目标函数考虑了系统的安全性和经济性,并以系统的控制变量、输出变量、支路传输功率和静态电压稳定功率裕度为约束条件,建立了提高系统静态电压稳定裕度的电压稳定控制数学模型。在控制模型中提出了安全经济协调因子和综合控制调节顺序加权系数的概念。使静态电压稳定控制模型更实用化。

An effective sim ulation ofdynam icpowersystem m odels ism ade via staticpow ersystem m odel. Itm akesthestatic pow er system m odel and the dynam ic one have the sam e saddle node bifurcation point. Under the condition of suitable form ulation, the voltage collapse point and the left eigenvector ofthe dynam ic pow er system can be obtained by m eans of static pow er system m odel. The norm alvector to the bifurcation setis preferred to be used in optim um system controlnear bifurcation. The Lanczos...

An effective sim ulation ofdynam icpowersystem m odels ism ade via staticpow ersystem m odel. Itm akesthestatic pow er system m odel and the dynam ic one have the sam e saddle node bifurcation point. Under the condition of suitable form ulation, the voltage collapse point and the left eigenvector ofthe dynam ic pow er system can be obtained by m eans of static pow er system m odel. The norm alvector to the bifurcation setis preferred to be used in optim um system controlnear bifurcation. The Lanczos m ethod is used to obtain its eigenvalue and eigenvector. The com putations show that Lanczos m ethod has a higherprecision and efficiency than the conventionalconverse iteration m ethod.

通过静态模型对动态模型的有效模拟,可以使电力系统静态模型和动态模型的鞍结分岔点(电压崩溃点)相同。在适当建模的情况下用静态模型求得系统的鞍结分岔点及其左特征向量,按此方向控制系统的行为可以最快地远离电压崩溃点。在特征值的求取上采用求解高阶稀疏对称阵特征对的Lanczos 法,实例证明用Lanczos 法求取特征值和特征向量比常用的逆迭代法精度高、运算量小

 
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