摘要
获取电气设备故障率的精确性直接关系到电力系统可靠性指标的可用性和科学性。该文应用M ar-quardt法来解决故障率函数的参数最优估计问题,并确定不同故障期的严格分界点。算例表明该方法实用性强,拟合精度高。
The accuracy of the failure rate of electrical equipment directly governs the availability and rationality of the reliability indices of power system. The Levenberg-Marquardt method is used to realize optimal parameter estimation of the failure rate function, and the strict boundary which specifically distinguishes different phases of the failure rate are effectively determined. An example shows the proposed method is of good practicability and high fitting accuracy.
出处
《继电器》
CSCD
北大核心
2005年第17期31-34,共4页
Relay
关键词
故障率函数
参数估计
浴盆曲线
failure rate function
parameter estimation
bathtub curve
