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Optimum and quasioptimum control of the position electric drive by criterion of electric losses minimum

The paper considers DC motor motion profile optimization for minimum electric losses in armature winding. From the comparative analysis of triangular, parabolic and quasioptimum trapezoidal profiles the “minimum minimorum” mode parameters are determined. It is analyzed how the product of positioning time and the losses changes at initial acceleration variation. This allows to define the reasonable productivity increase range concerning the “minimum minimorum” mode. It is also shown how the generalized criterion of electromechanical transformation of energy can be used to estimate the energy efficiency of an electric drive working in point-to-point mode.