Performance Improvement Of Induction Machine Using Electrical-Thermal Coupling Technique:- Irokwe, Ndubuisi V
ABSTRACT
This thesis summarizes the electrical-thermal
coupling of induction machine for performance improvement. The interaction of
the electrical and mechanical parts leads to an increase in temperature which
if not properly monitored may lead to breakdown of the machine. The project
therefore, set out to study the effect of electrical and thermal model ofthe
machine. A two-mass system is used to model the mechanical part of the machine.
The system of nonlinear ordinary differential equation and algebraic equations
describes the thermal behaviour ofthe machine in transient and steady-state respectively
which were solved numerically using the fourth-order Runge-Kutta method and
Gauss-Seidel method respectively. MATLAB mfiles were developed and were used to
solve both the fourth-order Runge-Kutta and GaussSeidel methods for both
transient and steady-state respectively. The thermal resistances and
capacitances were determined and calculated with the help of purely dimensional
information from the machine geometry and constant thermal coefficients and
their values were accepted as inputs by the MATLAB m-files. The result shows a
steady-state hot-spot at the stator winding part ofthe machine when both
coupled and uncoupled. The rotor iron and bar attains a peak temperature
of229°C when coupled while the stator winding attains a peak temperature of 342°C
when uncoupled.
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IROKWE, I (2025). Performance Improvement Of Induction Machine Using Electrical-Thermal Coupling Technique:- Irokwe, Ndubuisi V. Repository.mouau.edu.ng: Retrieved Jul 18, 2025, from https://repository.mouau.edu.ng/work/view/performance-improvement-of-induction-machine-using-electrical-thermal-coupling-technique-irokwe-ndubuisi-v-7-2
IROKWE, IROKWE. "Performance Improvement Of Induction Machine Using Electrical-Thermal Coupling Technique:- Irokwe, Ndubuisi V" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 17 Jul. 2025, https://repository.mouau.edu.ng/work/view/performance-improvement-of-induction-machine-using-electrical-thermal-coupling-technique-irokwe-ndubuisi-v-7-2. Accessed 18 Jul. 2025.
IROKWE, IROKWE. "Performance Improvement Of Induction Machine Using Electrical-Thermal Coupling Technique:- Irokwe, Ndubuisi V". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 17 Jul. 2025. Web. 18 Jul. 2025. < https://repository.mouau.edu.ng/work/view/performance-improvement-of-induction-machine-using-electrical-thermal-coupling-technique-irokwe-ndubuisi-v-7-2 >.
IROKWE, IROKWE. "Performance Improvement Of Induction Machine Using Electrical-Thermal Coupling Technique:- Irokwe, Ndubuisi V" Repository.mouau.edu.ng (2025). Accessed 18 Jul. 2025. https://repository.mouau.edu.ng/work/view/performance-improvement-of-induction-machine-using-electrical-thermal-coupling-technique-irokwe-ndubuisi-v-7-2