Abstract
Abstract— This paper presents a 1 kHz SVM-FOC (Space Vector Modulation with Field Oriented Control) drive system for a Permanent Magnet Synchronous Motor, using different control strategies. Such strategies are internal model and frequency response designed PI (Proportional and Integral) controllers and a multivariable MPC (Model Predictive Control) controller using a state-space prediction model. This MPC method becomes interesting for improving the closed-loop speed frequency response, since it results in a cascade-free controller. The performance of each controller was evaluated in a qualitative manner through simulations and quantitatively by load torque and speed reference AC sweeps, generating dynamic stiffness curves and Bode diagrams for the utilized techniques. Results show that the MPC approach is useful for enabling fast dynamic responses with the reduced switching frequency, which reduces the drive system cost and improves its efficiency.
Highlights
IntroductionMotors (PMSMs) are a the main advantages of high power density, high efficiency and low maintenance cost
PERMANENT Magnet Synchronous class of AC motors which haveMotors (PMSMs) are a the main advantages of high power density, high efficiency and low maintenance cost.the use of permanent magnets as passive magnetic flux sources generates a higher production cost in relation to DOI: ISSN: 2594-3553 other AC motors, such as three-phase induction motors [1]
One of the most common forms of driving a three phase PMSM with high efficiency is by using Field Oriented Control (FOC), which is based on transforming the measured AC currents into two phase DC currents by means of Park’s transform [2]
Summary
Motors (PMSMs) are a the main advantages of high power density, high efficiency and low maintenance cost. The use of permanent magnets as passive magnetic flux sources generates a higher production cost in relation to DOI: ISSN: 2594-3553 other AC motors, such as three-phase induction motors [1]. One of the most common forms of driving a three phase PMSM with high efficiency is by using Field Oriented Control (FOC), which is based on transforming the measured AC currents into two phase DC currents by means of Park’s transform [2]. With Park’s Transform, the currents are decomposed into direct axis (id) and quadrature axis currents (iq). The former is mainly responsible for machine magnetic flux and the latter is mainly related to machine electric torque
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