Principles Theory of Generalized Energy Flow of Three-phase Electromechanical Converter
Properties of instant power transformations in three-phase chains of electromechanical devices are considered. As a result of summation of instant values of energy and power of separate phases and invariant transition to the generalized power flow the equations of dynamic balance of active and reactive power of electromechanical converters are received. It is shown that the generalized variables of a total power stream have analog character, as in chains of a direct current. This property allowed to receive qualitatively new analog models of electromechanical devices. On a concrete example dynamic properties of analog power model are investigated and quasidynamic character of the equations of the generalized power flow is shown. Examples of use of a power method for the solution of a problem of monitoring of loading of the three-phase asynchronous drive and receiving the variables inaccessible to direct measurement are given. The variation problem of control of parameters of power model of the most exact specifications of the asynchronous engine is considered.