permanent magnet

Currently, DC motors with excitation from permanent magnets ( PM DC) are widely used in vehicles, household appliances, portable power tools due to their simple design and low cost. Therefore, the task of creating mathematical models for their calculation, which can be used for design, is urgent. The purpose of the article is to clarify the mathematical model of the magnetic state of the PM DC and experimental verification of the correspondence of the experimental results to the calculation results.

There is a tendency of replacement of small direct current motors with electromagnetic excitation on permanent magnet direct current (PMDC) motors nowadays. PMDC motors are widely used and that is why a task of creation of mathematical models of this type of motor is actual. The aim of the article is creation of mathematical model of magnetic state of PMDC motors on the basis of theory of electric and magnetic circuit.