Journal of Engineering Technology and Sciences

The research outlines a thorough explanation along with implementation details of intelligent controllers for speed control systems of induction motors which use the indirect vector control method. A complete mathematical description and MATLAB simulation of the field orientation control (FOC) induction motor is provided for studying a 70 HP (42KW) cage type induction motor. This document evaluates the performance output of three control systems through PI fuzzy and neural networks evaluation. The current method eliminates the requirement of speed and flux sensors because their installation increases expense and affects mechanical system reliability. A highly beneficial approach to achieve high-performance speed control exists through neural network-based controllers. There are three elements that comprise the system: the neural network controller and reference modal and weight adjustment methods for neural network weights permitting speed observation. The stator current functions independently from torque-producers and flux-generators in drives that use indirect vector-control of induction motors.

Keywords : IVCIM NN PI, FOC, IVCIM

Author : Srikanth and Lakshmi

Title : Using the Indirect Vector Control Method for Induction Motor Speed on Network Based Controller

Volume/Issue : 2025;02(03)

Page No : 01-03

A description of the dynamic neural network-controlled hybrid active power filter (HAPF) is provided for harmonic correction during source voltage and load current fluctuations. A neural network-based controller operates to extract current essentials from non-sinusoidal and unbalanced currents of the examined supply system. The presented compensation system merges shunt active and shunt passive filter mechanisms to achieve superior performance. The analysis of a three-phase hybrid active power filter occurs within MATLAB/SIMULINK both for balanced and unbalanced loads and unbalanced and distorted sources. The methodology validation took place through the complete simulation level findings presentation.

Keywords : Artificial Neural Network, THD, PI controller, hybrid active power filter

Author : Srikanth

Title : A Hybrid Active Power Filter Using Artificial Neural Networks to Remove Harmonics from Distorted Mains

Volume/Issue : 2025;02(03)

Page No : 04-07

The idea that an inverter can be utilized as a generalized impedance converter to provide either capacitive or inductive reactance has been applied extensively to address distribution networks' power quality problems. The DSTATCOM, which is linked in shunt at the load end, is one such device. A converter is the central component of the DSTATCOM. The concept of using an inverter as a generic impedance converter to produce either capacitive or inductive reactance has been widely used to solve power quality issues in distribution networks. One such device is the DSTATCOM, which is connected in shunt at the load end. The main part of the DSTATCOM is a converter.

Keywords : PWM, symmetrical components, power quality, hysteresis control, and DSTATCOM

Author : Deepak and Praveen

Title : A Review of DSTATCOM Control Algorithms

Volume/Issue : 2025;02(03)

Page No : 08-11

Design, modeling and simulation of a closed loop control system exhibits its function on an interleaved buck converter with soft switching. Among the features of the closed loop system there exist two fundamental benefits: reduced switching losses together with parallel-connected converter current sharing. Owing to PWM technology the control system for the converter receives its design structure. Dynamic stability and transient response improvement in the converters relies on current mode control-based controller parameters. The parallel operation between zero current switching converters functions because of resonant components that maximize efficiency while minimizing voltage and current oscillation. MATLAB/Simulink serves as the platform for analyzing and designing and running performance tests of the system. The actively controlled system demonstrates fast dynamic behavior in its operation through a PID controller design process that can be observed in simulation tests. A PIC16F877A microcontroller serves as the foundation when developing the Buck converter lab prototype to verify the controller platform.

Keywords : Buck converter, resonant component, microcontroller, interleaved, and zero current switching

Author : Vijay Muni

Title : Soft-Switched Interleaved Buck Converter with Closed Loop Control

Volume/Issue : 2025;02(03)

Page No : 12-15

This research discusses the design process of sliding mode controllers used for sensorless field-oriented induction motor control. A sliding mode regulator uses a sliding surface integration for speed regulation to improve controller performance. The adaptive observer implements the MRAS technique which determines rotor speed estimation used in the speed feedback loop. The experimental research verifies the effectiveness of this proposed method.

Keywords : Sliding-mode control, induction motor, focused on the field, Sensorless speed control and adaptive observation

Author : Varma and Pandian

Title : Sliding Mode Without Sensors Induction Motor Drive Vector Control

Volume/Issue : 2025;02(03)

Page No : 16-20

Total ankle replacement is a procedure in which an injured ankle joint is replaced with a plastic and metallic material. Presently SS316L, Co-Cr-Mo, Ti-6Al-4V Alloys are used as implant material in ankle replacement surgery. The materials SS316L, Co-Cr-Mo alloys are high in density which fails with in short period. Ti based alloys are used in many applications of biomaterials due to their excellent mechanical, physical and biological performance. Now a days, low modulus ?-type Ti-based alloys are still being developed with Young’s modules close to that of cortical bone, as they can provide good biological fixation through bone tissue in growth into the porous network potential and preventing stress shielding effect.The objective of this work is ?-type titanium alloys composed of non-toxic and allergy free elements such as Ti–13Nb–13Zr (TNZ), which is highly expected to be used as a biomaterial for implants. By considering a finite element model of the implant will be developed for the study. The model developed in CATIA V5 software. The analysis of the FE model using ANSYS software of the implant. To obtain the results by considering the different loads exerted by human body weight maximum 2000N,2500N,3000N,3500N on ankle joint implants while walking condition and applying different materials Co-Cr-Mo alloy,Ti-6Al-4V alloy,Ti-13Nb-13Zr alloy.Then finally we determined Von-Mises Stress and Total deformation from Static analysis and Natural frequencies from Modal analysis.

Keywords : Finite element method, Total ankle replacement, Ti-6Al-4V Alloy, Ti–13Nb–13Zr (TNZ) alloy, CATIA V5, ANSYS

Author : Dr.R.Vijaya Prakash ,Dr.B.Purna Chandra Sekhar

Title : STRUCTURAL ANALYSIS OF STAR ANKLE JOINT IMPLANT ON DIFFERENT LOAD CONDITIONS AND MATERIALS

Volume/Issue : 2025;02(03)

Page No : 21-28