Investigation on model predictive control of a five-phase permanent magnet synchronous machine under voltage and current limits

Abstract

is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Abstract-The optimal control of electrical drives necessitates to take into account current and voltage limits that are imposed by the power electronics and the electrical machines. Let's cite for example the flux-weakening operation of electrical drives for propulsion. If the control of classical three-phase drives under voltage and current limits are known for a long time, the specific characteristics of multiphase drives open the way to researches on their control under such constraints. This paper aims to explain what are the main differences between three-phase and multiphase drives when they run under voltage and current constraints and try to show what are the scientific and technical problems to be solved. Some first results are given in order to show that Model Predictive Control (MPC) is expected to be a good candidate to answer the proposed challenge.

Optimal flux‐weakening control of a new five‐phase FT‐IPM motor based on DTC and SVPWM for electric vehicle applications

“…When the motor runs under base , the limit of current in (20) is only needed to be considered for the optimal control. Therefore, MTPA is adopted to output the maximum torque.…”

“…In one control cycle, only i d or i q is changed, which could greatly reduce the calculative complexity. Keeping i q unchanged, i d is adjusted to make the voltage equation and current equation still satisfy the constrains presented in (20) and (21). Then the same case is applied to keep i d unchanged.…”

“…Owing to the problems in the practical application for the second scheme, the first scheme is widely researched and applied. In [20], the main differences of SVMFWC strategy between three-phase and multi-phase drive in FW region were stated. In [21], the FW control method for the five-phase PM motor with trapezoidal back-EMF was analysed.…”

Model predictive optimal control considering current and voltage limitations: Real-time validation using OPAL-RT technologies and five-phase permanent magnet synchronous machines

“…Nevertheless, none of these proposals takes into account electrical limits for the drive in the control strategy, up to the authors' knowledge. In [9], these limits have been barely considered to obtain optimal reference currents using classical PI regulators to guarantee the current tracking, while the present work goes beyond all mentioned proposals, stating that optimal reference currents can be obtained using model-based predictive methods. The main objective of the paper is then to introduce a new multiphase MPC method, named as two-stage Model-based Predictive optimal Control (2S-MPC).…”

Fault‐tolerant finite control set‐model predictive control for marine current turbine applications

“…In the literature, different control strategies have been proposed to control five-phase PMSG currents such as hysteresis control [14], proportional-integral (PI) control [11,12], robust control [15], predictive control with continuous control set [16], and sliding-mode control [7]. All of them require complex modulation techniques such as pulse-width modulation or space-vector modulation.…”