Synthesis of electric drives realizing limit operating regimes in terms of operation speed and overload capacity

Abstract

A special class of machine electric drives, which have an increased range of variation of the load torque and speeds with harsh and extreme operating conditions, are considered. It is shown that expansion of these parameters without increasing the rated power of the electric drive provides a significantly improved quality of technological regimes without increasing the cost of the electric drive. The strategy of the synthesis (design) of electrotechnical complexes is formulated providing the limit characteristics and consisting of the following stages: synthesis of a generic mathematical model, determination of the limit capacity of the object of control, parameter optimization of the electrotechnical complex in order to provide the limit characteristics, selection of simplified mathematical models of an electric drive, synthesis of the structures and the control system, and the search for the phase path of motion of the electric drive–working body system realizing the extreme operating regime. A determination of the possibilities of each stage is given.