1) second-order performance index(SOPI)
二阶电压指标
2) second order index
二阶指标
1.
Utilizing the theory of loss sensitivity,a new second order index-ILSI(Integrated Loss Sensitivity Index) is presented based on PMU.
本文利用PMU实测数据,在网损灵敏度理论的基础上,构造了一个二阶指标—综合网损灵敏度指标(Integrated Loss Sensitivity Index,ILSI),同目前电压稳定分析常用的一阶指标相比,具有线性度好,准确度高的优点,在电压失稳过程中有比较均匀的变化趋势,这样不仅可以让运行人员清楚地了解系统的稳定状况,而且还可以预测稳定极限。
2.
Test results show that the loss sensitivity -based second order index h.
为了直观描述电力系统的电压稳定性 ,从静态稳定分析的需要出发 ,提出了对电压静稳指标的要求 ,建立了新的基于网损灵敏度的二阶指标。
3.
Based onthis index, a novel second order index is proposed, which has clear physical meaning.
在该指标的基础上 ,提出了新的二阶指标。
4) second order loss sensitivity index
网损灵敏度二阶指标
1.
For example,the CS & R(contingency screening and ranking) methods for low voltage and voltage collapse are applied to quickly detect the non-zero risk contingency,and the second order loss sensitivity index is adopted to take the place of CPF(continuation power flow) to determine the expected value of the loadability.
从分析策略的角度通过引入快速CS&R(事故筛选和排序)获取风险指标不为0的事故,采用网损灵敏度二阶指标确定负荷水平期望值的方法代替常规的连续潮流法等快速的分析技术,减少风险指标及其灵敏度的计算量,用以提高风险评估的效率。
5) degree graph
指标阶图
1.
It is proved that there exists no finite solvable group G with the following as its character degree graph:···· The result solves an important open problem by Huppert and provides more evidence supporting the well known conjecture which claims that the diameter of the degree graph of any finite solvable group is at most 2.
对具有４个顶点的指标阶图进行了研究，证明了下述定理：不存在有限可解群Ｇ，使得Ｇ的指标阶图同构于下面的图：这一结果解决了Ｈｕｐｐｅｒｔ在１９９０年提出的一个公开问题。
6) voltage stability index
电压稳定指标
1.
A voltage stability index based on synchronized phasor measurements is presented for trans- mission systems.
针对输电网提出了一种基于同步相量测量信息的电压稳定指标。
2.
The applied static voltage stability index is researched and the relation between this index and load scale factor(LSF)is obtained.
介绍了配电网静态电压稳定分析中的常用指标,通过实例计算分析了各种不同型式的分布式发电设备及其在配网中的不同安装位置对系统静态电压稳定性的影响,对采用的静态电压稳定指标进行了讨论,分析了该指标与系统负荷增长因子之间的关系,所得结论对配电网中的分布式发电规划具有一定的指导作用。
3.
According to the criterion of real roots of quadratic equation in voltage equation,three new node voltage stability indexes,i.
在讨论一种二次方程判别式指标即线路稳定因子的基础上，利用电压方程的有解判别式，提出了三种适用于就地电压控制的节点电压稳定指标，即电压实部判别式指标ＡＶＲＰ，ＡＶＲＱ和电压幅值判别式指标ＡＶＭ。
补充资料：标准操作冲击电压波形(见冲击电压发生器)
标准操作冲击电压波形(见冲击电压发生器)
standard switching impulse voltage waveform
b .oozhun CooZuo ChongJld，onyo boxlng标准操作冲击电压波形(standard switchingimpulse voltage waveform)见冲击电压发生器。
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