ME369-系统模型、分析与控制 5.1电气系统建模 School of Mechanical Engineering ME369-lecture 5.1 Shanghai Jiao Tong University Fall 2015 变量 q:电荷 [C,Coulomb] i:电流 [A] 9=i e:电压[V] p:功率[] 96)=g,)+d w:功[J] p=ei w()=w)+pdi=w)+(e.)di School of Mechanical Engineering ME369-lecture 5.1 Shanghai Jiao Tong University Fall 2015 11 ME369-lecture 5.1 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 5.1 电气系统建模 ME369-系统模型、分析 与控制 ME369-lecture 5.1 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 变量 q i  1 0 1 0 ( ) ( )    t t q t q t idt 1 1 0 0 1 0 0 ( ) ( ) ( ) ( )        t t t t w t w t pdt w t e i dt q: 电荷 [C，Coulomb] i: 电流 [A] e: 电压 [V] p: 功率[W] w: 功 [J] p ei 