Based on the profound study of the method which is used to estimate the outage costs abroad , the thesis amends the estimation method which makes the estimation more reasonable with the practical situation in our country . under a certain calculation circumstance , the thesis adopts two different costs models to calculate a example ' s outage costs which illuminate that adopting the two models to estimate outage costs is feasible 在一定计算条件下，分别采用两种不同的费用模型，对一算例求系统的停电损失，所得结果相近，说明利用这两种模型估算系统停电损失是可行的正确的，然后对它们进行了比较，并提出一种使停电损失的估算具有通用性的新思想。
Based on current resolving method of nonlinear finite element equations , the magnetic field distribution of typical operations are obtained . through the analysis of calculating results , this paper presents the effect of the synchronous generator operational parameters on the magnetic field non - linearity 在已有的非线性有限元方程求解方法的基础上，利用现有的计算条件，本论文计算了若干典型工况的磁场分布，通过对这些计算结果的分析，研究的同步发电机端部运行参数对磁场非线性的影响。
First , the backward kolmogorov equation for the conditional reliability function and the pontryagin equation for mean first - passage time and then - associated boundary and initial conditions are derived based on the stochastic averaging methods for quasi non - integrable , quasi integrable and quasi partially integrable hamiltonian systems , respectively 首先利用拟不可积、拟可积非共振及拟部分可积非共振hamilton系统的随机平均法分别给出了研究该系统首次穿越问题的提法，包括计算条件可靠性函数的后向kolmogorov方程及计算平均首次穿越时间的pontryagin方程及其边值条件。
