隐式Taylor级数暂态稳定计算变步长方法初探  

Study of Variable Step Method in Implicit Taylor Series Transient Stability Calculation

作　　者：郑焕坤[1] 孙耀芹[2] 常鲜戎[1] 

机构地区：[1]华北电力大学电气与电子工程学院,保定071003 [2]冀北保定电力职业技术学院,保定071000

出　　处：《电力系统及其自动化学报》2012年第4期88-92,共5页Proceedings of the CSU-EPSA

摘　　要：隐式调谐Taylor级数暂态稳定算法是一种具有A稳定性的高精度时域仿真算法。为了进一步改善算法的性能,文中在该算法基础上利用其基于预估-校正迭代格式的特点对其暂态稳定计算步长进行动态控制。该方法充分利用其实现过程中迭代格式的特点,在不增加额外计算量的基础上实现了变步长算法。计算与分析结果表明,该步长的动态控制方法很好地利用了原算法具有A稳定性可进行大步长计算的特点,既保持了算法的高精度优点,又显著提高了计算速度,进一步提升了算法的实用价值。Taylor series transient stability algorithm is a kind of high-precision A-stability time-domain simulation method. In order to improve the performance of the algorithm, the paper presents the dynamic step length control based on the calculation accuracy. This method utilizes the characteristics of the iterative format to re- alize the variable step algorithm with no additional calculation. The analysis and calculation results show that the step dynamic control function has good use of algorithm A stability characteristics, which not only maintains a high calculation accuracy, but also significantly improves the calculation speed. Therefore, it can further promote the practical value of the algorithm.

关 键 词：隐式积分 暂态计算 TAYLOR级数法 预估校正 变步长 

分 类 号：TM712[电气工程—电力系统及自动化]