Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Torque control of Induction machine motor drive system based on closed loop FOC Method: Study & design of controller for Induction machine for HEV
University West, Department of Engineering Science.
University West, Department of Engineering Science.
2022 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This thesis is based on the electrical drive system of a hybrid electric car that has been adapted for racing and uses an induction machine. It is one of the most often used electrical drives due to its robustness and simple construction. The induction motor model is based on the design of a race-purpose HEV created by the company Fengineering and their associates. The rated torque and power are only available at rated rpm in a conventional internal combustion engine vehicle. It also requires a certain amount of time to reach its maximum performance. In comparison to an electric motor, an internal combustion engine has excessive losses. The performance of the driveline can be improved by using an induction motor.

The goal is to use a simulation environment to understand control theory (FOC) and create a control algorithm for an induction machine. It is, however, frequently controlled by a speed sensor or an open loop design, such as the well-known Volt/Hertz control. However, the supply currents of field-oriented regulated induction motors are controlled in real time, both in magnitude and phase, in response to the torque demand given by the vehicle torque controller. Different performance scenarios can be researched and studied utilizing the Vector control (Field oriented control) technique.

First, a simple induction machine set up was constructed in the Simulink environment. This was done to investigate the primary factors that influence the induction machine's operation. The field-oriented control algorithm is made up of a closed control loop that constantly monitors the system's critical parameters in order to adjust the motor's torque and flux. The system will meet the requirements by constantly comparing the feedback quantities to the reference quantities. The software was used to model the control algorithm in the simulation environment. The algorithm was used to operate the induction machine using parameters that were similar to those that had already been modelled by Fengineering and their collaborators. The simulation results provide information on the induction machine's torque and speed characteristics. Field weakening is required to obtain speeds higher than the rated speed. The maximum torque per ampere principle is taken into account. The direct axis current (id) and quadrature axis current (π‘–π‘ž) plays a very important role in the performance of the induction machine from the perspective of hybrid race car. The direct axis current (𝑖𝑑) and quadrature axis current (π‘–π‘ž) can be balanced in such a way that the induction machine can deliver superior performance (greater torque and lower response time) especially in the early stages by enhancing the control algorithm.

Place, publisher, year, edition, pages
2022. , p. 39
Keywords [en]
Induction machine, Control, Field oriented control, Hybrid electric vehicle
National Category
Embedded Systems
Identifiers
URN: urn:nbn:se:hv:diva-19057Local ID: EXE700OAI: oai:DiVA.org:hv-19057DiVA, id: diva2:1691127
Subject / course
Electrotechnology
Educational program
Master Programme in Electric vehicle engineering
Supervisors
Examiners
Available from: 2022-09-21 Created: 2022-08-29 Last updated: 2022-09-21Bibliographically approved

Open Access in DiVA

No full text in DiVA

By organisation
Department of Engineering Science
Embedded Systems

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 217 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf