To modeling the nonlinear part, nonlinear PWM process is linearized by equivalent-area method, so linear models of whole system in every condition are built.
对非线性环节，应用等效面积方法把本质非线性的PWM过程线性化，从而给出不同工况下系统的线性模型。
This article using the equivalent parametric method in the steady condition presents the integrated algorithm to the symbolic analysis of nonlinear circuit system.
利用非线性电路系统稳态工作情况下的等效小参量法，提出了复杂非线性电路系统的符号分析的统一算法。
Based on the nonlinear static equivalent equations of the cable-cabin system, forces and lengths suitable for servo motor control are obtained by least square method and an optimum strategy.
基于系统的非线性静平衡方程 ，通过最小二乘运算和优化策略 ，获得了适于伺服电机控制的索系平衡张力和索长。
Based on the nonlinear static equivalent equations of the cable-cabin system, forces and lengths suitable for servo motor control are obtained by least square method and an optimum strategy.
基于系统的非线性静平衡方程 ，通过最小二乘运算和优化策略 ，获得了适于伺服电机控制的索系平衡张力和索长。
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