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voltage collapse critical point
相关语句
  电压稳定临界点
    Determination of Static Voltage Collapse Critical Point Based on Load Flow Method with Optimal Multiplier
    基于最优乘子潮流确定静态电压稳定临界点
短句来源
    This paper presents a new interior point algorithm for determining voltage collapse critical point.
    提出了一种基于现代内点理论的电压稳定临界点新算法。
短句来源
    A new method for determination of static voltage collapse critical point based on Newton-Raphson load flow method with optimal multiplier is proposed in this paper.
    给出了一种基于最优乘子潮流求静态电压稳定临界点的新方法。
短句来源
  “voltage collapse critical point”译为未确定词的双语例句
    By fuzzifying load increase based onexpected value of the maximum and minimum of node load forecast, the uncertaintyattribute of load increase is described. Then according to different system securityrequirements, the voltage collapse critical point algorithm is proposed in two differentways.
    以各节点负荷预测的最小和最大期望值为边界将负荷增长模糊化,描述了负荷增长具有的随机性和模糊性的不确定属性,从两种不同系统安全要求实现电压崩溃临界点算法。
短句来源
    Based on load increase bound of the voltage collapse critical point algorithm, an OPFbased transaction scheduling considering load characteristic is proposed; and aquantitive approach to assess the voltage collapse margin of the scheduling and thecontributions of market participators is presented.
    在电压崩溃临界点算法确定负荷增长区间的基础上,首次提出了一种基于OPF并考虑负荷特性的交易计划及其电压崩溃裕度和市场参与者贡献的定量评估方法。
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This paper presents a new interior point algorithm for determining voltage collapse critical point.It is free from the illness associated with the singularity of power flow Jacobian matrix near the critical point by introducing parameterized power flow equations,which result to accurately determine the critical point.A 4×4 nodal block structure of coefficient matrix has been realized by rearranging the correction equation which similar to the nodal admittance matrix.Consequently,we...

This paper presents a new interior point algorithm for determining voltage collapse critical point.It is free from the illness associated with the singularity of power flow Jacobian matrix near the critical point by introducing parameterized power flow equations,which result to accurately determine the critical point.A 4×4 nodal block structure of coefficient matrix has been realized by rearranging the correction equation which similar to the nodal admittance matrix.Consequently,we can program conveniently for this problem.At the same time,the number of fill ins is reduced extraordinarily,which can decrease the calculation efforts,and speed up the calculation.

提出了一种基于现代内点理论的电压稳定临界点新算法。该算法引入了参数化潮流方程 ,避免了临界点附近雅可比矩阵奇异带来的病态 ,能精确地确定电压稳定临界点。该法采用了新颖的数据结构 ,使修正方程系数矩阵具有与节点导纳矩阵相同的结构 ,该方法在方便编程的同时 ,一定程度上减少了注入元的产生并减少了计算量 ,加快了计算速度。经标准的IEEE5 7系统 118系统及广西 2 2 0~ 5 0 0kV实际电力系统的仿真计算 ,验证了所提算法的有效性。

A new method for determination of static voltage collapse critical point based on Newton-Raphson load flow method with optimal multiplier is proposed in this paper. Different from continuation load flow and direct methods, this method starts from the infeasible region of load flow equations. It then approaches the desired critical point along the changing direction of injected power flow by making use of value of the optimal multiplier and the least square solution of load flow equations. All...

A new method for determination of static voltage collapse critical point based on Newton-Raphson load flow method with optimal multiplier is proposed in this paper. Different from continuation load flow and direct methods, this method starts from the infeasible region of load flow equations. It then approaches the desired critical point along the changing direction of injected power flow by making use of value of the optimal multiplier and the least square solution of load flow equations. All possible situations during the approaching process are analyzed and reactive power limits of generators are considered. The unified approach for identifying and calculating saddle node point and limit-induced bifurcation point is given. Convergence characteristic and computation complexity are analyzed. Tests in several systems show that the proposed method can converge at critical point after several iterations. The results are consistent with continuation load flow and direct methods.

给出了一种基于最优乘子潮流求静态电压稳定临界点的新方法。与连续潮流或直接法求解电压崩溃点不同,该方法从潮流的可行域外出发,利用潮流迭代过程中最优乘子的值和最小二乘解提供的信息,沿注入功率变化的方向逼近电压崩溃点。给出了判别和计算鞍结型和约束诱导型分岔点的方法,分析了逼近过程中的各种可能情况。对多个算例测试的结果表明:所提出的方法通过几次迭代即可收敛于静态电压稳定临界点,计算结果与应用连续潮流和直接法一致。

 
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