22. Consider an electromechanical system whose flux-linkage equations given by 서%3 5ij +101 1-. |cose, 1+ im. Az = i; + 20| cos0, 1+ i„ ) where i, 2 0, i, 20, i = i, + 2i; and where 0, is the mechanical rotor position. Derive expressions for the coenergy and torque in terms of i,, i,, and 0,.
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