Control systems of electric drives - complex multifunctional and multiparameter - are characterized by application of several (on number of parameters or performed functions) local systems of regulation and control.
In transvector-controlled variable frequency drives, the fundamental harmonics of the motor flux or motor voltage/current are required to generate the frequency inverter control signals.
The possibilities of controlling different current coordinates of variable current machines presented by vector control systems can be used to control the main energy characteristics of the drive, such as power factor and efficiency.
AC drives, due to their well-known advantages, in many industrial mechanisms successfully replace DC drives. Particularly effective is the use of a valve motor, which by its control properties is almost a complete analog of the DC machine and, in addition, has an undoubted advantage - the absence of a collector unit.
Modern load benches use a DC machine as a load machine. Stabilization of the DC machine parameters for proper tuning of the entire bench is extremely important ...
In the basis of the choice of the type of drive, providing minimum distortion of electromagnetic characteristics, should be based on the choice of motor type, taking into account its design features, the distribution curve of magnetic induction in the gap, winding parameters, the number of phases, etc., as well as the choice of the type of converter, providing in a given frequency range optimal harmonic composition of the shape of the supply voltage curve ...
Asynchronous motor with squirrel cage rotor - structurally the simplest electrical machine, which has caused a fairly widespread use of this motor in the drive of mining machines. However, the dynamic modes of these machines are not sufficiently studied ...
