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the critical point of voltage
相关语句
  电压临界状态
     The shortcoming of using voltage and power to describe the voltage critical state is analyzed and the load impedance angle is introduced for the critical point of voltage. The ternary analysis method of voltage V, power P and load impedance angleφis established.
     本文首先分析了采用电压和功率描述电压临界状态的不足,提出了引入负荷阻抗角的三个参数来描述电压临界状态,即电压V、功率P和负荷阻抗角φ的三元分析法。
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  “the critical point of voltage”译为未确定词的双语例句
     At the same time, the rule is analysedthat how the minimum eigenvalue of the Jacobian matrix changes as the loads of powersystems. A new approach is presented to estimate the critical point of voltage collapse. Theapproach is also tested on the standard IEEE9 system and the Huazhong 22-node power grid.
     同时,本文根据雅可比矩阵最小模特征值随系统负荷的变化趋势,提出了一种近似确定电压崩溃点的方法,该方法也在 IEEE9 节点系统和华中电网 22 节点系统上进行了验证。
短句来源
     WithIEEE-14points system as the example, we can get a conclusion that it is too optimisticthat the voltage stability abundance is assessed only according to static transmissionpower limit by comparison the non-linear bifurcation theoretical analysis, and the staticmethod can not evaluate the critical point of voltage accurately.
     并将非线性分岔理论分析方法与静态分析方法的仿真结果进行比较,得出传统分析中将静态传输功率极限代替系统动态传输功率极限所得的结论偏于乐观,不能够准确的对系统当前运行点距离失稳点的真实裕度进行评估。
短句来源
     In this thesis, the characteristics of the critical voltage collapse operation point is analyzed and a novel method used to get the critical point of voltage collapse is put forward.
     本文对临界电压崩溃的运行点进行了特性分析,提出了一种求取电压崩溃临界点的新算法。
短句来源
     From the viewpoint of voltage static sta-bility,the critical point of voltage stability is studied.
     本文从电压静态稳定性观点对系统电压静稳临界点进行了研究。
短句来源
     Using a continuation power flow CPF method based on the above load-flow algorithm,the critical point of voltage stability of a test system is computed and compared to that by the conventional power flow method.
     采用上述潮流模型的连续潮流算法,对一个试验系统进行了电压稳定临界点的计算,并与常规潮流算法进行了比较
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From the viewpoint of voltage static sta-bility,the critical point of voltage stability is studied. The load flow solution near a Jacobian singularity isxuccessfully explained by the conclusions which are de-rived form a simple system. With respect to the prox-imity coefficient expressed by actual values,the reac-tive power proximity coefficient that is defined in the-paper has the advantage over voltage and active powerproximity coefficients.

本文从电压静态稳定性观点对系统电压静稳临界点进行了研究。文中用简单系统得出的结论很好地解释了多机系统中雅可比矩阵趋于奇异时的潮流方程解,并指出就有名值表示的储备系数而言,本文定义的无功功率静稳储备系数比用电压和有功功率表示的静稳储备系数更直观,物理意义更明确。

A novel power flow arithmetic for voltage stability analysis is studied in this paper.It takes into account models of all elements in a power system.It solves the sim ultaneous equations,which consist of both load flow equation and state equation of dynamic elements,and simultaneously gets the voltage amplitude and phase of all buses and inner state variables of all dynamic elements.In this algorithm,differentkinds of limits are considered and the assumption of PV bus,PQ bus and slack bus are eliminated,so...

A novel power flow arithmetic for voltage stability analysis is studied in this paper.It takes into account models of all elements in a power system.It solves the sim ultaneous equations,which consist of both load flow equation and state equation of dynamic elements,and simultaneously gets the voltage amplitude and phase of all buses and inner state variables of all dynamic elements.In this algorithm,differentkinds of limits are considered and the assumption of PV bus,PQ bus and slack bus are eliminated,so the result is closer to the real operation condition.Using a continuation power flow CPF method based on the above load-flow algorithm,the critical point of voltage stability of a test system is computed and compared to that by the conventional power flow method.

研究了一种新型的用于电压稳定分析的潮流算法,它可充分考虑电力系统各种类型元件的模型,将常规潮流方程与动态元件的状态方程联立求解,同时解出系统中各个节点的电压、相角以及各种动态元件内部的状态变量。它考虑了系统中各种极限情况,消除了对于PV,PQ及平衡节点等的假设,使计算结果更加接近于系统的实际运行情况。采用上述潮流模型的连续潮流算法,对一个试验系统进行了电压稳定临界点的计算,并与常规潮流算法进行了比较

A power system will experience voltage collapse when a system load parameter is over a certain critical value. In this paper, the mechanism of voltage collapse is studied based on the circuit model. The results show that the fundamental reason for the occurrence of voltage collapse is due to the non transversal intersection between solution manifolds of the injection branch equations of generators and loads and the linear electrical network equations in the bus voltage and injection current space. In the meantime,...

A power system will experience voltage collapse when a system load parameter is over a certain critical value. In this paper, the mechanism of voltage collapse is studied based on the circuit model. The results show that the fundamental reason for the occurrence of voltage collapse is due to the non transversal intersection between solution manifolds of the injection branch equations of generators and loads and the linear electrical network equations in the bus voltage and injection current space. In the meantime, it is also proven that the non transversal intersection mentioned above exactly corresponds to the static bifurcation point, i.e. the critical point of voltage collapse.

当系统负荷参数超过某一临界值时 ,电力系统就会发生电压崩溃。文中细致地研究了基于物理电路方程解流形的电压崩溃机理。研究结果表明 :出现电压崩溃的几何本质是发电机和负荷注入支路方程的解流形与电力网络线性方程解流形在注入电流—电压空间出现非横截。文中还证明了这一非横截交点恰好对应于静态分岔点即电压崩溃的临界点。文中结果对于防止电压崩溃、保证系统安全运行具有重要意义。

 
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