Model predictive combined vector and direct torque control of SM‐PMSM with MTPA and constant stator flux magnitude analysis in the stator flux reference frame

Heidari, Reza

doi:10.1049/iet-epa.2019.1042

Cited by 9 publications

(3 citation statements)

References 24 publications

(46 reference statements)

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“…To make a precise evaluation, the root mean square error (RMSE) of the flux and torque is calculated in the following sections. These analyses are based on the subsequent equations [28, 29]:

\begin{equation}{T_{{\rm{rip}}}} = \sqrt {\frac{1}{N}\sum\nolimits_{i = 1}^N {{{\left( {{T_e}\left( i \right) - {T_{{\rm{e - ave}}}}} \right)}^2}} } \end{equation}

\begin{equation}{\lambda _{{\rm{rip}}}} = \sqrt {\frac{1}{N}\sum\nolimits_{i = 1}^N {{{\left( {{\lambda _s}\left( i \right) - {\lambda _{{\rm{s - ave}}}}} \right)}^2}} } \end{equation}

where N ,

{{{\lambda}}_{{\rm{s}} - {\rm{ave}}}}

, and

{T_{{\rm{e}} - {\rm{ave}}}}

are the sample number and the average value of the flux and torque, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Direct slip angle control for rotor side converter of standalone DFIG‐DC system

Fakhraee

Babaei

Alizadeh

et al. 2022

IET Renewable Power Gen

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This paper presents a direct slip angle control (DSAC) for rotor side power converter of standalone doubly-fed induction generator (DFIG) DC systems. The conventional direct torque control (DTC) for the rotor side converter (RSC) of the standalone DFIG-DC system is also introduced to evaluate the proposed DSAC compared to the conventional DTC method. In this regard, the proposed DSAC method is mathematically analyzed. Then, three states including output DC voltage change, wind speed change, and load change are simulated and performed for both the proposed DSAC and conventional DTC methods. Various simulations and experiments substantiate that the electromagnetic torque ripple, current harmonics, and the output DC voltage dip, caused by the sudden load-change, are reduced in the proposed DSAC method compared to the conventional DTC method. Besides, the parameter dependency is reduced in the proposed DSAC method since the stator voltage and current sensors are removed.

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“…To make a precise evaluation, the root mean square error (RMSE) of the flux and torque is calculated in the following sections. These analyses are based on the subsequent equations [28, 29]:

\begin{equation}{T_{{\rm{rip}}}} = \sqrt {\frac{1}{N}\sum\nolimits_{i = 1}^N {{{\left( {{T_e}\left( i \right) - {T_{{\rm{e - ave}}}}} \right)}^2}} } \end{equation}

\begin{equation}{\lambda _{{\rm{rip}}}} = \sqrt {\frac{1}{N}\sum\nolimits_{i = 1}^N {{{\left( {{\lambda _s}\left( i \right) - {\lambda _{{\rm{s - ave}}}}} \right)}^2}} } \end{equation}

where N ,

{{{\lambda}}_{{\rm{s}} - {\rm{ave}}}}

, and

{T_{{\rm{e}} - {\rm{ave}}}}

are the sample number and the average value of the flux and torque, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…To make a precise evaluation, the root mean square error (RMSE) of the flux and torque is calculated in the following sections. These analyses are based on the subsequent equations [28,29]:…”

Section: Steady-state Analysis For All Analyzed Methodsmentioning

confidence: 99%

Direct slip angle control for rotor side converter of standalone DFIG‐DC system

Fakhraee

Babaei

Alizadeh

et al. 2022

IET Renewable Power Gen

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“…In addition, controller robustness is affected, since the calculation process involves motor parameters. In [39], Surface‐mounted PMSM (S‐PMSM) drive is operated by the combination of FOC and DTC. The stator flux and torque components are indirectly controlled by current components in the stator flux reference frame.…”

Section: Introductionmentioning

confidence: 99%

Development of enhanced direct torque control for surface‐mounted permanent magnet synchronous motor drive operation

Meesala

Udumula

Nizami

et al. 2023

IET Power Electronics

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Direct torque control (DTC) is one of the most prominent control techniques used by permanent magnet synchronous motor (PMSM) drives in industry applications. Nevertheless, the presence of hysteresis controllers and inaccurate voltage switching table in traditional DTC results in higher torque and flux ripple. This study proposes an enhanced DTC functioned Surface‐mounted PMSM (S‐PMSM) drive with mitigation of torque and flux ripple. The operation relies on generating the reference voltage vector (VV) in a stationary reference frame, which supports control of torque and flux without hysteresis controllers. The reference VV generation is simple and does not affect control robustness. The position of reference VV in a sector is used to build the voltage vector (VV) switching table. As a result, the application of nearest discrete VV to reference VV produces optimal torque and flux control. Moreover, redundant switching combinations of null VV are effectively used for possible minimization of switching frequency of two‐level voltage source inverter (VSI) supplied S‐PMSM drive. Therefore, proposed DTC gains improved S‐PMSM drive response along with switching frequency reduction. In dSPACE‐RTI 1104 platform, experimental response of S‐PMSM drive under various operating conditions have been depicted to highlight the proficiency of proposed DTC in comparison with existing DTC.

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