Decoupled current control with novel anti-windup for PMSM drives
| Autor: | Kahyun Lee, Jung-Ik Ha, Dwarakanath V. Simili |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Engineering business.industry 020208 electrical & electronic engineering Ripple Open-loop controller Control engineering 02 engineering and technology 01 natural sciences Magnetic flux Inductance Nonlinear system Control theory Integrator 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business Decoupling (electronics) Voltage |
| Zdroj: | 2017 IEEE Energy Conversion Congress and Exposition (ECCE). |
| Popis: | This paper proposes a new current controller with modified decoupling and anti-windup schemes for a permanent magnet synchronous motor (PMSM) drive. In designing the controller, an improved voltage model, which is different from existing models in that it reflects all the nonlinear characteristics of the motor, is considered. In an actual PMSM, unintentional distortion occurs in inductance and flux due to magnetic saturation and structural asymmetry. In this paper, the effects of such distortion on voltage ripple are analyzed and the effect of voltage distortion on current control is analyzed in detail. Based on the voltage model, a decoupling controller is developed to effectively separate the d-q current regulators. The controller produces compensation voltages using the current error of the other axis. In addition, an anti-windup controller is designed that takes into account not only the integrator output in PI controllers but also the integrator output in decoupling controllers. The proposed current controller aimed at compensating all nonlinearities of PMSM enables high-performance operation of the motor. The feasibility of the proposed current control scheme is verified by experimental results. |
| Databáze: | OpenAIRE |
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