摘要
随机模拟是评估电压暂降问题的重要手段之一,采用不同的随机模型,评估的结果也不相同,因此需要选取合适的仿真模型。采用三种不同的故障地点概率模型,对电压暂降问题进行随机模拟,通过比较随机模拟的电压暂降幅值的期望值结果与实测值得知,通过统计获得的故障地点概率模型,能更准确地反映电压暂降幅值的分布情况。通过实际统计得到的故障地点概率模型,可更有效地对电压暂降问题进行评估。
Probabilistic simulation of voltage sags is one of the most approaches to evaluate the voltage sags.Different probabilistic simulation models will produce different simulation results,therefore selecting appropriate probabilistic simulation models is the main work before the assessment of voltage sags.The voltage sag events are simulated by using the three probabilistic models of fault location.By comparing the expectation values of voltage sag from the simulations with the real measured value,the error of the third model is minimal.Therefore,the third model is the optimal model for the probabilistic assessment of voltage sags.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2010年第6期143-146,共4页
Proceedings of the CSU-EPSA
