Artificial Neural Networks based SPWM technique for speed control of Permanent Magnet Synchronous Motor

The advancement of industry apparatuses for some methods with specific tasks to control the working of a few actuators on the field. Among these actuators, Permanent magnet synchronous motor drives are a mainly all-inclusive machine. Proficient utilization of hesitance torque, generally effectiveness, minor misfortunes and smaller size of the motor are the principle attractions of PMSM when contrasted and different drivers. Precise and rapid torque reaction is one of the parameters to determine differentiating arrangements in the ongoing past. The field-situated power perceived the likely and vigorous answer to accomplish these prerequisites to empower the figuring of streams and voltages in different parts of the inverter and motor under transient and consistent conditions. The primary objective of this paper is to investigate Artificial Neural Network based control of speed for PMSM in both open and closed loop under no-load and loaded condition. A shut circle control framework with ANN procedure in the speed circle intended to work in steady torque and transition debilitating districts. MATLAB reproduction performed in the wake of preparing the neural system (directed learning), results for reference control applications are adequate and appropriate in the process business. Speed control in shut circle at different stacking conditions talked about in detail

Morphological Operations and Histogram Analysis of SEM Images using Python

Characterization of any Material / Element requires SEM (Scanning Electron Microscopy) analysis. Images captured from SEM are further considered for analysing the Morphology, structure of the material. Due to non-conduction or any technical issues, the image captured may not be accurate for analysis. If the image is accurate also morphological operations can’t be performed. In this paper, SEM images are processed to study the histogram analysis for equalizing the image, morphological operations via. Erosion, Dilation etc using Python programming

Speed Control of an Induction Motor Fed by an Inverter Using dSPACE Controller

This paper presents the design and implementation of Inverter system for driving three phase Induction motor using DSPACE DS1104 controller with the controlling objective space vector pulse width modulation (SVPWM) technique. AC motor drives are commonly used over DC motor drives because of their more advantages. Induction motor is the most commonly used AC motor drive for various industrial and domestic applications. The project will be commenced by a basic understanding of SVPWM inverter, components used in the design and study the mathematical equations of the Induction motor. The performance of SVPWM based Induction motor (IM) in open loop is presented with simulation. Here the hardware implementation of the three phase inverter which is fed to a three phase induction motor driven by DSPACE CP1104 is been implemented

Gate Driver Circuit Design, PWM signal generation using FEZ Panda III and Arduino for Inverter

This paper presents the gate driver circuit design and PWM signal generation using FEZ panda III and Arduino boards for Inverter. FEZ panda III works on .net micro framework and all its programming, debugging features are available through Microsoft’s Visual studio whereas Arduino features are available through Arduino software. Inverters are used in various applications like in motor drives and solar and wind power applications. This paper is commenced by basic understanding of need of gate driver circuit for inverter and different types of PWM techniques for generating gate signals for inverter. Simulation of SPWM inverter in both open loop and closed loop operation is done and its respective gate voltage waveforms are studied and later hardware implementation of gate driver circuit using TLP250H IC is carried out and gate voltages at different duty cycles is studied with the help of FEZ Panda III and Arduino boards

7-Level Semi Cross Switched Multilevel Inverter Fed Induction Motor Drive

Multilevel inverters have more prominent features than 2-level inverter due to various advantages like voltage quality, low EMI etc. The semi cross switched multilevel converter topology need less number of semiconductor switches compared to cascaded H-bridge multilevel inverter, and can be implemented to any number of voltage levels. The operating modes of 7-level semi cross switched multi level inverter are discussed. Three phase seven level inverter fed induction motor is implemented in MATLAB/SIMULINK

Morphological Operations and Histogram Analysis of SEM Images using Python

796-800Characterization of any Material / Element requires SEM (Scanning Electron Microscopy) analysis. Images captured from SEM are further considered for analysing the Morphology, structure of the material. Due to non-conduction or any technical issues, the image captured may not be accurate for analysis. If the image is accurate also morphological operations can’t be performed. In this paper, SEM images are processed to study the histogram analysis for equalizing the image, morphological operations via. Erosion, Dilation etc using Python programming

Configurations and Control Strategy of a Single Stage Grid Connected PV System

In the grid-connected photovoltaic (PV) system, the array forms DC power. This generated power, a two-way grid process is called DC – DC – AC as a two-stage power conversion and, secondly, a DC-AC with a reduced circuit is called a single Stage Grid – Connected PV (SSGCPV) system. SSGCPV is more advantageous for reduced complexity, reliability and efficiency, in order to reduce the number of step-up transformer power with conventional inverter (or transformer) with less high PV voltage. This paper proposes a detailed review of the few configurations of the SSGCPV inverter system and also discusses its control strategy for tracking maximum power and generating pulses to obtain the required output power

Control Techniques for the Cascaded and Cross-switched Multilevel Inverter - A Comparison

Nowadays, the multilevel inverter has gained huge attention and has become more popularized in high voltage and high-power applications with low harmonics. As the number of output voltage increases, the harmonic content of the output voltage waveform decreases. In this paper, a comparison of cascaded H-bridge and cross-switched multilevel inverters for 7, 9, 15, 21 levels will be carried out. The different control techniques that will be used for carrying out comparisons are space vector pulse width modulation (SPVPWM), sinusoidal pulse width modulation (SPWM), and third harmonic injection pulse width modulation (THI-PWM) respectively. Here, the seven-level inverter is discussed mainly and can be extended to any number of levels