Relative Stability of Electrical into Mechanical Conversion with BLDC Motor-Cascade Control

Sylwester Sobieraj, Grzegorz Sieklucki and Józef Gromba
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Sylwester Sobieraj: Department of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30-059 Krakow, Poland
Grzegorz Sieklucki: Department of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30-059 Krakow, Poland
Józef Gromba: Department of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30-059 Krakow, Poland

Energies, 2021, vol. 14, issue 3, 1-17

Abstract: The conversion of the electrical energy into the mechanical is usually realized by a motor, power electronics and cascade control. The relative stability ( Θ -stability), i.e., the displacement of its eigenvalues of this system is analyzed for a drive with a BLDC motor. The influence of changing the basic parameters of the motor and power supply system on the drive operation is considered. 4th order closed-loop transfer-function of the cascade control is presented, where boundaries of the transfer-function coefficients are used. The cascade system which uncertainty of the resistance, inductance, flux and gain parameters is analyzed. Theoretical calculations for the cascade control, simulations and laboratory tests are included in the article.

Keywords: energy conversion; BLDC motor; cascade control; PI controller; relative stability; Kharitonov theorem (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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