Thus, the goal of the paper is to develop a mathematical model of the two short-induction motors smoke exhausters unit of thermal power stations that are powered by the transformer's own needs, and appropriate software designed for the rapid analysis of motor operating modes using modern computer technology.
To achieve adequacy of mathematical modeling of motor of smoke exhausters sufficient for practical purposes it is necessary to model processes not only the motors themselves, but also in the transformer of own needs (TON) unit, which feed motors.
This Figure shows that smoke exhausters electric motors powered by a transformer secondary winding their needs through switches, and the primary winding of the transformer is powered from the mains, which are presented turbine.
1 and differential equations mechanical condition for induction motors and smoke exhausters.
The main inputs serve Catalog parameters: transformer own needs, smoke exhausters induction motors and electrical network and initial conditions systematized in integrated vector variables has the following structure:
Based on the above-described mathematical models and algorithms developed software system programming language FORTRAN, which allows using computers to calculate electromagnetic and electromechanical processes in electrotechnical complex systems, smoke exhausters TPP.
Below is a generalized analysis of modes of asynchronous motors smoke exhausters thermal power on the basis of the results obtained by mathematical modeling.
In practice, the operation modes of asynchronous motors of smoke exhausters defined mode of operation of thermal power.
This mode will allow smoke exhausters motor cover almost all the important stages of their work, including the group ran and simultaneously assess the possibilities offered by mathematical models and corresponding software system.