Optimal Voltage Angle for Maximum Torque per Voltage Control of Induction Machine in Deep Field-Weakening Region

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00373776" target="_blank" >RIV/68407700:21230/24:00373776 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1049/pel2.12690" target="_blank" >https://doi.org/10.1049/pel2.12690</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/pel2.12690" target="_blank" >10.1049/pel2.12690</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimal Voltage Angle for Maximum Torque per Voltage Control of Induction Machine in Deep Field-Weakening Region

Popis výsledku v původním jazyce

This paper investigates the optimal stator voltage angle in a rotor flux-oriented system of an induction machine drive, aiming to maximise machine torque while operating in a deep field weakening region. Here, torque maximisation leads to maximum torque per voltage control, as only voltage constraints are relevant in this region due to high back-electromotive force. Previous studies have predominantly focused on field-weakening operation and torque maximisation, assuming a constant synchronous speed. However, for a given rotor speed, the variation in the dq voltage components impacts the slip speed, thereby influencing the synchronous speed. Therefore, enhanced analytical expressions are proposed in this paper to address this limitation. It is shown that after a linearisation around a suitable operating point, a closed-form algebraic equation for calculating the speed and parameter-dependent optimal voltage angle for torque maximisation can be obtained. The theoretical analysis is supported by numerical and experimental results. The presented linearised expression is proven to be an effective tool for the analytical calculation of the optimal voltage angle, making it suitable for real-time control applications. It is shown that the proposed approach achieves higher drive torque and efficiency than the conventional voltage component distribution.

Název v anglickém jazyce

Optimal Voltage Angle for Maximum Torque per Voltage Control of Induction Machine in Deep Field-Weakening Region

Popis výsledku anglicky

This paper investigates the optimal stator voltage angle in a rotor flux-oriented system of an induction machine drive, aiming to maximise machine torque while operating in a deep field weakening region. Here, torque maximisation leads to maximum torque per voltage control, as only voltage constraints are relevant in this region due to high back-electromotive force. Previous studies have predominantly focused on field-weakening operation and torque maximisation, assuming a constant synchronous speed. However, for a given rotor speed, the variation in the dq voltage components impacts the slip speed, thereby influencing the synchronous speed. Therefore, enhanced analytical expressions are proposed in this paper to address this limitation. It is shown that after a linearisation around a suitable operating point, a closed-form algebraic equation for calculating the speed and parameter-dependent optimal voltage angle for torque maximisation can be obtained. The theoretical analysis is supported by numerical and experimental results. The presented linearised expression is proven to be an effective tool for the analytical calculation of the optimal voltage angle, making it suitable for real-time control applications. It is shown that the proposed approach achieves higher drive torque and efficiency than the conventional voltage component distribution.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IET Power Electronics

ISSN

1755-4535

e-ISSN

1755-4543

Svazek periodika

17

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

764-773

Kód UT WoS článku

001196315200001

EID výsledku v databázi Scopus

2-s2.0-85189958834