scholarly journals Development of an Android Based SCADA System for Induction Motor Application

2019 ◽  
Vol 3 (4) ◽  
Author(s):  
Patrick O. Oseghale ◽  
Nkwachukwu Chukwuchekwa
Keyword(s):  
Embedded System ◽  
Induction Motor ◽  
Supply Voltage ◽  
Assembly Language ◽  
Mobile Station ◽  
Base Station ◽  
Motor Speed ◽  
Scada System ◽  
Station Site ◽  
Design Construction

Majority of SCADA (Supervisory Control and Data Acquisition) systems that is being deployed and implemented all over the world utilizes a much larger network that is complex and expensive. This paper provides and demonstrates a cheaper alternative. The developed system which may be used for domestic applications has the ability to monitor the supply voltage, speed, casing and stator temperature as well as to control the speed of the motor. It can transmit the data of these monitored parameters, wirelessly, between the base station (site) and mobile station (android phone) through Bluetooth. The mobile station serves as the display medium to enable the user to view these parameters and also have input keypads that the user can use to alter the speed. To achieve this, an embedded system was used which involves the programming of PIC microcontrollers using assembly language. Other discrete components such as resistor, capacitor, transistors etc. were also utilized. A variable frequency driver was designed to drive the induction motor and interface with the microcontroller. After the design, construction and testing, the results were satisfactory as the SCADA system could alter induction motor speeds, collate motor casing and stator temperature, supply voltage and speed in revolutions per minute (RPM) and transmit them to the android phone. Temperature range of 24ºC to 51ºC, motor speed of 747 to 2234 RPM, and supply voltage of 179 to 221V AC was measured.

Variable Speed Vector Control for Induction Motor of Electric Vehicle

2014 ◽  
Vol 699 ◽  
pp. 759-764
Author(s):  
Amilia Emil Hasan ◽  
Haryani Hassan ◽  
Ismadi Bugis
Keyword(s):  
Embedded System ◽  
Vector Control ◽  
Induction Motor ◽  
Control Method ◽  
Torque Ripple ◽  
Electromagnetic Torque ◽  
Motor Speed ◽  
Speed Controller ◽  
Speed Performance ◽  
Constant Output

This paper presents the speed performance of an induction motor by using a vector control. The control scheme used is an indirect vector control for define speed command. The main focus of this research is to observe on the dynamic speed performance of the induction motor when the command speed is given to the motor. In this study, the system of indirect vector control will be built by using Matlab Simulink. In fact, the expression of exciting flux linkage and electromagnetic torque are used to create a simple embedded system which to find out the effects of flux weakening in motor while, the gain of the speed controller is 100. The result shows that the vector control method will cause immediate the motor speed response with a small electromagnetic torque ripple. Furthermore, the output mechanical torque starts to decrease when the motor speed above the base speed to maintain a constant output power operation. This paper contributes a new algorithm to analysis the system when the speed motor is higher than a base speed.

scholarly journals Nonlinear Effects of Three-Level Neutral-Point Clamped Inverter on Speed Sensorless Control of Induction Motor

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 402 ◽  
Author(s):  
Peifei Li ◽  
Lei Zhang ◽  
Bin Ouyang ◽  
Yong Liu
Keyword(s):  
Induction Motor ◽  
Reference Model ◽  
Supply Voltage ◽  
Sensorless Control ◽  
Nonlinear Effects ◽  
Neutral Point ◽  
Motor Speed ◽  
Speed Sensorless ◽  
Theoretical Derivation ◽  
Voltage Deviation

In the model reference adaptive speed observer, the induction motor supply voltage is used as the input of the reference model. However, measuring the supply voltage complicates the system and increases the cost, so the command voltage calculated by the controller is generally used instead of the actual supply voltage in the drive system. However, due to the nonlinear effects of the inverter, the voltage calculated by the controller is different from the actual supply voltage, resulting in a speed observation deviation. This paper analyzes the multiple effects that cause the three-level neutral-point clamped (TL-NPC) inverter output voltage and command voltage deviation. A voltage deviation compensation measure based on the volt-second balance principle is proposed. In this context, the expression of the rotational speed deviation caused by the voltage deviation is derived rigorously and in detail. Finally, the effectiveness of the voltage compensation measure is verified by experiments. The experimental results are basically consistent with the theoretical derivation expressions. The method and analysis in this paper is applicable to induction motor speed sensorless control systems driven by two-level and other multilevel inverters.

scholarly journals Speed Control of AC Motor

2020 ◽  
Vol 9 (10) ◽  
pp. 332-334
Keyword(s):  
Embedded System ◽  
Induction Motor ◽  
Industrial Applications ◽  
Motor Speed ◽  
Zero Crossing ◽  
Home Appliances ◽  
Ac Motor ◽  
Industry Automation ◽  
The Embedded System ◽  
Enormous Number

An enormous number of motors have been using in our daily life ranging from home appliances to industrial machinery. During the last decade, there has been tremendous change industry automation and home automation. Electric motor is always the essential part in home appliances as well as industrial applications in the automation. There is always a need to control the speed of the motor to run the appliances smoothly. Other important part of the appliances is the microcontroller. Microcontroller is always the essential part in all the embedded system applications because of its economical price and easy to customize to any specific need. Electronic devices like thyristors, diodes have been widely used in industrial applications to control the speed of the motor The Objective of this paper is to control the induction motor speed by using triac and zero crossing detector. Usually in many industrial applications speed varying is important to run the process in different stages, this paper demonstrates the mechanism of varying the speed of the AC Motor. The circuit is equipped with microcontroller and the induction motor. Induction motor is controlled by using triac and zero crossing detector by controlling the pulses of input AC signal. Microcontroller input is connected with two input modules that is one increment switch and one decrement switch. Increment switch is used to increase the speed of motor by varying in steps that is already dumped the code in microcontroller and also same for decrement switch. An LCS screen has been used to display the speed of the motor. Touch screen is used to operate the motor.

scholarly journals Design, Construction, and Control for an Underwater Vehicle Type Sepiida

Robotica ◽  
2020 ◽  
pp. 1-18
Author(s):  
M. Garcia ◽  
P. Castillo ◽  
E. Campos ◽  
R. Lozano
Keyword(s):  
Embedded System ◽  
Closed Loop ◽  
Underwater Vehicle ◽  
Mathematical Representation ◽  
Closed Loop System ◽  
Vehicle Type ◽  
Mathematical Equations ◽  
And Control ◽  
Design Construction

SUMMARY A novel underwater vehicle configuration with an operating principle as the Sepiida animal is presented and developed in this paper. The mathematical equations describing the movements of the vehicle are obtained using the Newton–Euler approach. An analysis of the dynamic model is done for control purposes. A prototype and its embedded system are developed for validating analytically and experimentally the proposed mathematical representation. A real-time characterization of one mass is done to relate the pitch angle with the radio of displacement of the mass. In addition, first validation of the closed-loop system is done using a linear controller.

scholarly journals Dynamic load modeling of some low voltage devices

2009 ◽  
Vol 22 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Lidija Korunovic ◽  
Dobrivoje Stojanovic
Keyword(s):  
Induction Motor ◽  
Dynamic Load ◽  
Low Voltage ◽  
Supply Voltage ◽  
Incandescent Lamp ◽  
Mercury Lamp ◽  
Load Modeling ◽  
Load Model ◽  
Fluorescent Lamps

This paper presents the results of dynamic load modeling for some frequently used low voltage devices. The modeling of long-term dynamics is performed on the basis of step changes of supply voltage of the heater, incandescent lamp, mercury lamp, fluorescent lamps, refrigerator, TV set and induction motor. Parameters of dynamic exponential load model of these load devices are identified, analyzed and mutually compared.

scholarly journals Study and analysis the effect of variable applied voltage on SCIM performances based on FEA

2020 ◽  
Vol 11 (3) ◽  
pp. 1230
Author(s):  
Waleed Khalid Shakir Al-Jubori ◽  
Yasir Abdulhafedh Ahmed
Keyword(s):  
Steady State ◽  
Induction Motor ◽  
Applied Voltage ◽  
Supply Voltage ◽  
Finite Elements Analysis ◽  
Steady State Condition ◽  
Squirrel Cage ◽  
Voltage Variation ◽  
Three Phase ◽  
Cage Induction Motor

Study and analysis the effect of variable applied voltage on SCIM performances based on FEA is presented. Three phase squirrel cage induction motor SCIM has been investigated and numerically simulated using finite element method (FEM) with the aid of ANSYS software (RMxprt and Maxwell 2D/3D). This research presents study and analysis of the effects of the voltage variation on performance and efficiency of the three-phase induction motor of the squirrel cage type. The Finite Elements Analysis Method FEA is used as one of the best methods for analysis and simulation of electrical motors in addition to the possibility of dealing with nonlinear equations, Since the induction motor is a complex electromagnetic reaction, the researchers used the ANSYS program to represent and analyze the performance of the motor under variable supply voltage. The case studied in this research is three phases, 380V, 50Hz, 2.2kW, induction motor that widely use in industrial application. The aim of this research is to study the effect of voltage variation on efficiency, current value, power factor and torque of SCIM.  The RMxprt software has been used for modeling and simulating the induction motor and calculating the values of phases currents, input and output power in additional of overall efficiency at steady state condition. The next stage of the research is creating Maxwell 2-D design from the base model of RMxprt software, Maxwell 2-D model has the ability to computing the distribution of magnetic field and explaining the performance under steady-state operation. The obtained results show significant reduction of motor performance due to the effect of variation of apply voltage.

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