Noninteracting optimal and adaptive torque control using an online parameter estimation with help of polynomials in EKF for a PMSM

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

This paper addresses a non-interacting torque control strategy to decouple the d- and q-axis dynamics of a permanent magnet synchronous machine (PMSM). The maximum torque per ampere (MTPA) method is used to determine the reference currents for the desired torque. To realize the noninteracting control, knowledge concerning the inductances Ld and Lq of the electrical machine is necessary. These two inductances are estimated by two extended Kalman filters (EKFs), which use a univariate polynomial as a model to describe the saturation effects of the PMSM. The Kalman filters (KF) are realized within a noninteracting control system to improve the observability of the inductance. Despite the non-perfect decoupling, thanks to the structural stochastic nature of the KFs, noninteracting cancellation errors are represented with its process noise and the inductances are estimated sufficiently well. In this sense, we can speak about KFs for and within noninteracting control. Estimating inductances is fundamental for optimal torque control, which is a viable approach to reducing mechanical vibration and disturbance. Moreover, the control strategy of model-based techniques must be adaptively tuned to work properly. Starting from the existing literature, a viable control structure is proposed in which the stability of the control loop using a Proportional Integral (PI) controller is shown for the resulting time-varying system. In fact, the model is represented as a time-varying system because of the presence of the variable inductances Ld and Lq and because of the presence of the velocity of the rotor which is not considered as a state. In this paper, a forward Euler discretization is used to realize the observer in the discrete experimental setup. Measures realized with hardware in the loop (HIL) show interesting results in the context of inductance estimation, due to the advantage of the reduction of the dimensions of the two decoupled EKFs resulting from the noninteraction control. Using the HIL simulator, the proposed torque control strategy is investigated, showing promising results in terms of increasing observability due to decoupling. This and the usage of univariate polynomials in EKF calculations lead to significant reduction of measurement points, reduction of oscillations and ripples, deviation between desired and achieved torque and reduction of disturbances. Moreover, the proposed control strategy using a very limited calculation load, at the same time, maintains the ripples inside the technical limits of the obtained torque. Both effects are due to the decoupled EKFs with simplified and reduced order of the models using univariate polynomials, which require significantly fewer measuring points in the run-up to the creation of the model of the inductances Ld and Lq.

OriginalspracheEnglisch
ZeitschriftISA Transactions
Jahrgang158
Seiten (von - bis)452-467
Anzahl der Seiten16
ISSN0019-0578
DOIs
PublikationsstatusErschienen - 01.03.2025

Bibliographische Notiz

Publisher Copyright:
© 2025 The Authors

DOI

Zuletzt angesehen

Projekte

  1. Gründungslabor

Publikationen

  1. Scale-dependent diversity patterns affect spider assemblages of two contrasting forest ecosystems
  2. Photodegradation of micropollutants using V-UV/UV-C processes
  3. Biodegradability and genotoxicity of surface functionalized colloidal silica (SiO2) particles in the aquatic environment
  4. Reconfiguring Desecuritization
  5. Making the most out of timeseries symptom data
  6. Vergütung, variable
  7. Understanding and Supporting Management Decision-Making
  8. Fermentative utilization of coffee mucilage using Bacillus coagulans and investigation of down-stream processing of fermentation broth for optically pure L(+)-lactic acid production
  9. Knowledge transfer during the integration of knowledge-intensive acquisitions
  10. Exports, R&D and Productivity
  11. The role of task meaning on output in groups
  12. Geometric structures using model predictive control for an electromagnetic actuator
  13. Usage pattern-based exposure screening as a simple tool for the regional priority-setting in environmental risk assessment of veterinary antibiotics
  14. Design of Reliable Remobilisation Finger Implants with Geometry Elements of a Triple Periodic Minimal Surface Structure via Additive Manufacturing of Silicon Nitride
  15. Self-perception of the internal audit function within the corporate governance system - Empirical evidence for the European Union
  16. Material flow analysis between dynamic modelling and life cycle assessment
  17. Design rules for environmental biodegradability of phenylalanine alkyl ester linked ionic liquids
  18. Exploring Leverages and Pitfalls of Context Collapse in Modern Communication