Abstract
Development and
analysis of non linear controllers for enhanced speed performance in induction
motor (IM) is the main focus of this research. IM is a constant speed machine,
this makes it not suitable for variable applications except the speed is
controlled appropriately. 2.2 kW squirrel cage three phase induction motor was
used as a sample motor for this work and it was modeled in Ansys rotating
Machinery Expert (RMxprt) and Ansys
Maxwell 2D . The data for software modeling of the motor was extracted from
laboratory experiment on 2.2kW squirrel cage induction motor. No load test,
block rotor test and the load test was carried out on 2.2 kW induction motor, and some data were
extracted to verify that the experimented motor and the simulated motor are the
same. On the load test, the effect of load on the speed value of both the
experimented and simulated motor had a negligible difference, also the core loss
of the simulated motor was 44.0W while the experimented motor gave a core loss
of 44.4W, hence, the simulated motor and the experimented motor are the same.
Steady state behavior was gotten from RMxprt platform where the rated
performances and the rated parameters were generated. The dynamic performance
of the motor was analyzed in Maxwell 2D platform, where the behavior of the
motor on different loading condition was studied. The parameters generated form
RMxprt were extracted and used for conventional modeling of the 2.2kW induction
motor in MATLAB/Simulink, and this model was used for developing an induction
motor vector control drive for speed control. The dynamic behavior of the motor
was further assessed on the different loading condition using the conventional
model without controller. The controllers used for this work include
Proportional integral derivation controller, Fuzzy logic controller, hybrid
FLC-PID controllers, Genetic Algorithm hybrid controller (FLC-PID-GA) particle
swarm optimization hybrid controller (FLC-PID-PSO) and these controllers were
designed in MATLAB/Simulink. The performance of the induction motor with these
controllers using vector speed control technique in variable speed operating
condition were analyzed and compared in terms of steady state error, overshoot,
undershoot, rise time and settling time. The operating conditions considered
were constant speed on constant load, constant speed on intermittent loads,
varying speed on constant load, and varying speed on intermittent load.
Non-linear load was also tested on the induction motor. It is observed from the
simulation results that FLC-PID and FLC-PID-PSO controllers on driving the
induction motor with the reference speed of 30rad/s on constant load, the
percentage peak overshoots were 9.7501% and 1.374%, and steady state error were
2.45% and 0.183% respectively. Also the speed reaches its desired set value at
0.072 second in FLC-PID-PSO and 0.13 Sec in FLC-PID. While in varying speed and
intermittent load condition, FLC-PID and FLC-PID-PSO controllers have percentage peak
overshoots of 8.32 % and 0.64%, and steady state error of 0.313% and 0.28%
respectively. The reduction in the steady state error and overshoots in the
induction motor regulated speed at the stated operating operations has shown
the effectiveness of FLC-PID-PSO controller. From the results, it is established
that FLC-PID-PSO controller has produced the best speed performance on the operating conditions
considered, and the errors realized with FLC-PID-PSO controller is negligible
that it can be comfortably used in the most applications such as Mixers, Cranes and
submarine robotic divers that have high
speed precision requirement.
-- (2023). Development And Analysis Of Non Linear Controllers For Enhanced Speed Performance In Induction Motor. Mouau.afribary.org: Retrieved Nov 23, 2024, from https://repository.mouau.edu.ng/work/view/development-and-analysis-of-non-linear-controllers-for-enhanced-speed-performance-in-induction-motor-7-2
--. "Development And Analysis Of Non Linear Controllers For Enhanced Speed Performance In Induction Motor" Mouau.afribary.org. Mouau.afribary.org, 20 Jun. 2023, https://repository.mouau.edu.ng/work/view/development-and-analysis-of-non-linear-controllers-for-enhanced-speed-performance-in-induction-motor-7-2. Accessed 23 Nov. 2024.
--. "Development And Analysis Of Non Linear Controllers For Enhanced Speed Performance In Induction Motor". Mouau.afribary.org, Mouau.afribary.org, 20 Jun. 2023. Web. 23 Nov. 2024. < https://repository.mouau.edu.ng/work/view/development-and-analysis-of-non-linear-controllers-for-enhanced-speed-performance-in-induction-motor-7-2 >.
--. "Development And Analysis Of Non Linear Controllers For Enhanced Speed Performance In Induction Motor" Mouau.afribary.org (2023). Accessed 23 Nov. 2024. https://repository.mouau.edu.ng/work/view/development-and-analysis-of-non-linear-controllers-for-enhanced-speed-performance-in-induction-motor-7-2