考虑负荷变化随机性的电压稳定分析方法可以更多地计及不确定因素,提供更丰富的电压稳定临界点以及最小功率裕度的信息。
By using the voltage stability analysis with uncertain factors of load variation considered in computation, more information about the critical point and the minimal power margin will be offered.
讨论和分析了流道间隙、加热功率和入口过冷度对沸腾起始点、沸腾流态、换热系数、流动不稳定性和临界热负荷的影响。
The effects of gap size, heat flux and inlet subcooling on the boiling incipience, flow pattern, heat transfer coefficient, flow instability and critical heat flux were analyzed and discussed.
以河南电网为例,采用暂态安全定量分析软件FASTEST计算了不同动态负荷模型比例时的暂态功角稳定裕度和临界切除时间。
The transient Angle stability margin and critical clearing time are computed by FASTEST under different proportion of dynamic electric load model using in Henan Power Grid.
系统电压稳定指标与临界值0之间的距离反映了系统的电压稳定裕度。
The distance between the index value and the critical value of0 indicates the margin of voltage stability.
结果与结论:随着相对分子质量和取代度的增加,粒子稳定性增强,临界胶束质量浓度降低。
RESULTS AND CONCLUSION: With the degree of substitution and molecular weights increased, the stability of the nanoparticles enhanced, critical micelle concentration decreased.
研究结果表明:该轨道车非线性临界速度较高,具有较大的稳定性裕度;
The research results show that the non-linear critical speed of the rail car is fairly high, with fairly big stability margin;
下层问题求解某个负荷变化方向上的最大负载裕度,上层问题考虑负荷变化方向的约束,寻找最近的电压稳定临界点。
The lower-level problem is to maximize the loading margin under a load change direction and the upper-level problem is to find the closest critical point subject to the constraints of load change.
过程控制系统的整定经常采用临界比例度法 (或稳定边界法 ) ,笔者证明了这种整定方法在某些情况下精确度相当低 ,提出了改进方法。
The proportion degree method is usually used in rectification of process control systems, but the precision of this method is very low.
基于随机-模糊概率模型,定量分析了钢制薄壁圆筒临界失稳强度的模糊可靠度、稳定系数与外压试验压力系数之间的关系。
The test pressure coefficient and safety factor are searched for thin-wall vessels with minimum virgin reliability of burst strength in different working conditions.
基于随机-模糊概率模型,定量分析了钢制薄壁圆筒临界失稳强度的模糊可靠度、稳定系数与外压试验压力系数之间的关系。
The test pressure coefficient and safety factor are searched for thin-wall vessels with minimum virgin reliability of burst strength in different working conditions.
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