Systematic Design of Improved Lead-Lag Direct Power Model Predictive Controller for Multilevel Active-Front-End Rectifier: A Comparative Study

Abarzadeh, Mostafa; Ebrahimian, Armin; Khan, Waqar A.; Weise, Nathan; Al‐Haddad, Kamal

doi:10.1109/iecon48115.2021.9589612

Cited by 4 publications

(1 citation statement)

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“…In the past decade, researchers have focused on utilizing model predictive control (MPC) techniques for control of power converters as a result of significant advantages over traditional linear control schemes [14]- [17]. By exploiting the ever increasing computational power in commercial DSPs, benefits such as decoupled control of variables, controllability of MIMO systems, and ease of inclusion of soft and hard system constraints make MPC well suited for control of non-linear switched power electronic converters [16], [18].…”

Section: Introductionmentioning

confidence: 99%

A Generalized Analytical Tuning Approach for Model Predictive Controlled Grid-Tied Converters Under Wide Range of Grid Inductance Variation

et al. 2022

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In medium-high power applications, the LCL is the preferred filter topology to attain efficient power conversion. The filter provides a high damping attenuation of -60 dB/decade above the resonance frequency at the cost of a higher order plant, complex parameter design, and, increased vulnerability to un-modeled disturbances. Recently, model predictive control applied to power electronic converters has experienced great interest from researchers. The technique is tailored to the control of complex MIMO systems such as the LCL filter as it allows simultaneous regulation of several state-variables via a user defined cost function. However, the tuning of weighting factors (WFs) within the cost function is not trivial, and in most cases employs an empirical procedure. This paper presents an analytical procedure for tuning of WFs for indirect model predictive current controlled grid-tied converters. The method is based on using analytical closed-form expressions, that relate closed-loop poles of the filter with WFs via physical plant parameters. The presented expressions generalize the tuning of WFs to any arbitrary LCL design. The proposed method is validated by hardware-in-the-loop simulations conducted on PLECS RTBOX 3. Through experimental testing, it is shown that the controller is robust against a wide range of grid impedance variation.

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