Title :
Stability issues of high-speed PMSM feedback control systems
Author :
Novak, Martin ; Novak, Zdenek
Author_Institution :
Fac. of Mech. Eng., Czech Tech. Univ. in Prague, Prague, Czech Republic
Abstract :
This paper describes stability issues on both open loop and feedback loop with a high speed permanent magnet synchronous motor (PMSM). The motor discussed in this application is a 3kW, 42 000 rpm, 560 V PMSM. The problems of time delays-computational delay-in the control loop are discussed. It is shown that for this specific case, the time delay in the feedback loop has to be lower than 1/20 of the electrical time constant of the machine itself. A solution for higher machine stability with a Field Programmable Gate Array (FPGA) controller system is proposed.
Keywords :
control engineering computing; delays; electric machine analysis computing; feedback; field programmable gate arrays; machine control; mechanical stability; open loop systems; permanent magnet motors; synchronous motors; FPGA; computational delay; electrical time constant; feedback loop; field programmable gate array controller system; high speed permanent magnet synchronous motor; high-speed PMSM feedback control systems; machine stability issues; open loop; power 3 kW; time delays; voltage 560 V; Delay effects; Mathematical model; Permanent magnet motors; Stability criteria; Synchronous motors; Thermal stability; AC machine; Control of drive; Electrical machine; Permanent magnet motor; Synchronous motor;
Conference_Titel :
Power Electronics and Applications (EPE), 2013 15th European Conference on
Conference_Location :
Lille
DOI :
10.1109/EPE.2013.6634466
