使用大量的有限元法求解偏微分方程，模拟数据分析处理的过程，三相光伏逆变并网的仿真，部分实现了追踪测速迭代松弛算法，采用的是脉冲对消法，GPS和INS组合导航程序。- Using a large number of finite element method to solve partial differential equations, Analog data analysis processing, Three-phase photovoltaic inverter and network simulation, Partially achieved tracking speed iterative relaxation algorithm, It uses a pulse of consumer law, GPS and INS navigation program.