How to solve non linear equation?

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muneeb ahmad
muneeb ahmad 2015 年 8 月 4 日
回答済み: Sean de Wolski 2015 年 8 月 4 日
How can solve the simultaneous equations to get the angles for selective harmonic elimination in a PWM VSI.
For example, how can I solve these equations
m = (4/pi)*(1-2*cos(a) + 2*cos(b) - 2*cos(c))
0 = (1 - 2*cos(5*a) + 2*cos(5*b) - 2*cos(5*c))
0 = (1 - 2*cos(7*a) + 2*cos(7*b) - 2*cos(7*c))
I need to get the values of angles a, b and c.

回答 (1 件)

Sean de Wolski
Sean de Wolski 2015 年 8 月 4 日
Assuming you know m, this can be solved with fsolve in the Optimization Toolbox
doc fsolve

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