Electrical Machine Fundamentals with Numerical Simulation using MATLAB/SIMULINK

2021 ◽  
Author(s):  
Atif Iqbal ◽  
Shaikh Moinoddin ◽  
B. Prathap Reddy
Keyword(s):  
Numerical Simulation ◽  
Electrical Machine ◽  
Matlab Simulink

Secure Communication with Chaos and Electronic Circuit Design Using Passivity-Based Synchronization

2017 ◽  
Vol 27 (04) ◽  
pp. 1850057 ◽  
Author(s):  
Uğur Erkin Kocamaz ◽  
Serdar Çiçek ◽  
Yılmaz Uyaroğlu
Keyword(s):  
Numerical Simulation ◽  
Circuit Design ◽  
Communication System ◽  
Secure Communication ◽  
Passive Control ◽  
Electronic Circuit ◽  
Control Method ◽  
Data Communication ◽  
Matlab Simulink ◽  
Electronic Circuit Design

This work deals with the passive control-based chaos synchronization with circuit design for secure communication. First, the numerical simulation and electronic circuit design of a simple five-term chaotic system are performed. The numerical simulation and electronic circuit design outputs have confirmed each other. Then, the passive control method is applied for synchronizing two identical five-term chaotic systems using only one state control signal. After the synchronization study, design and analysis for secure communication by chaotic masking method are conducted in Matlab–Simulink platform. Finally, an electronic circuit design is performed for the designed communication system. In the designed communication system with Matlab–Simulink platform and electronic circuit design, information signal which is sent from the transmitter unit is successfully retrieved at the receiver unit. As a result, the electronic circuit design has shown that a single state passivity-based synchronization signal can be effectively used for secure data communication applications for the real environment.

A Remote and Sensorless Stator Winding Temperature Estimation Method for Thermal Protection for Induction Motor

2014 ◽  
Vol 3 (3) ◽  
pp. 53-72 ◽  
Author(s):  
T. A. Enany ◽  
W. I. Wahba ◽  
M. A. Moustafa Hassan
Keyword(s):  
Thermal Behavior ◽  
Induction Motor ◽  
Induction Motors ◽  
Thermal Protection ◽  
Electrical Machine ◽  
Stator Winding ◽  
Temperature Estimation ◽  
Matlab Simulink ◽  
Soft Starter ◽  
Drive Signals

Three-phase induction motors are the “workhorses” of industry; they are the most widely used electrical machine; because of its simple structure and high reliability. This paper proposes a new technique to model the stator winding of the induction motor in Matlab Simulink® software. This simulation of the induction motor would have the thermal behavior of its stator winding; to study the induction motor temperature estimation using motor parameter-based method. The modified model is used to validate a remote and Sensorless stator winding temperature estimation technique; therefore a thermal protection is obtained for soft-starter-connected to induction motors. The soft-starter is used to inject a DC signal in the induction motor terminal voltage and current. The stator winding resistance/temperature is estimated from DC signal injection by changing the gate drive signals of the Thyristor in the soft starter. The level of the injected DC signal is adjusted by the value of the delay angle. The accuracy of stator winding temperature estimation increased with the increase of DC signal level; however the pulsation of the output torque increased also. The thermal behavior is simulated utilizing a thermal resistor block from the Matlab Simscape™ software. It is used to replace the fixed resistor value of the induction motor model in the Matlab Simulink. The thermal monitoring scheme has been validated from the simulation results of a 7.5 kW induction motor under various loading conditions.

scholarly journals AC Losses Analysis in stack of 2G HTS tapes in a coil

2020 ◽  
Author(s):  
Vasily Zubko ◽  
Sergey Fetisov ◽  
Sergey Zanegin ◽  
Vitaly Vysotsky
Keyword(s):  
Numerical Simulation ◽  
High Temperature ◽  
Transport Current ◽  
Ac Loss ◽  
Ac Losses ◽  
Electrical Machine ◽  
Power Cables ◽  
Fem Model ◽  
Model Coil ◽  
Computational Speed

The model coil with the racetrack geometry based on second generation (2G) High Temperature Superconducting (HTS) tapes has been developed for an electrical machine where a winding pack is a stack of 2G HTS tapes. It is important to evaluate transport current AC losses and possible methods to reduce them in a winding. In a device made of 2G HTS tapes, the main the AC losses are the hysteresis ones. Only numerical simulation permits to predict them in full. The FEM model for calculation of the hysteresis losses developed before for 2G HTS power cables was modified for a stack of the 2G HTS tapes in a coil. In this paper the methods to increase a computational speed are presented. Possible ways to reduce AC losses are discussed also. The details of the model and comparisons of calculations with measurements of the AC loss are presented.<br>

scholarly journals AC Losses Analysis in stack of 2G HTS tapes in a coil

2020 ◽  
Author(s):  
Vasily Zubko ◽  
Sergey Fetisov ◽  
Sergey Zanegin ◽  
Vitaly Vysotsky
Keyword(s):  
Numerical Simulation ◽  
High Temperature ◽  
Transport Current ◽  
Ac Loss ◽  
Ac Losses ◽  
Electrical Machine ◽  
Power Cables ◽  
Fem Model ◽  
Model Coil ◽  
Computational Speed

The model coil with the racetrack geometry based on second generation (2G) High Temperature Superconducting (HTS) tapes has been developed for an electrical machine where a winding pack is a stack of 2G HTS tapes. It is important to evaluate transport current AC losses and possible methods to reduce them in a winding. In a device made of 2G HTS tapes, the main the AC losses are the hysteresis ones. Only numerical simulation permits to predict them in full. The FEM model for calculation of the hysteresis losses developed before for 2G HTS power cables was modified for a stack of the 2G HTS tapes in a coil. In this paper the methods to increase a computational speed are presented. Possible ways to reduce AC losses are discussed also. The details of the model and comparisons of calculations with measurements of the AC loss are presented.<br>

scholarly journals PEMANFAATAN MATLAB SIMULINK SEBAGAI MEDIA PEMBELAJARAN PRAKTIKUM SECARA DARING

2021 ◽  
Vol 8 (2) ◽  
pp. 169
Author(s):  
Muhammad Isnaini ◽  
Mega Silfia Dewy
Keyword(s):  
Learning Process ◽  
Positive Response ◽  
Learning Goals ◽  
Electrical Machine ◽  
State University ◽  
Study Program ◽  
Matlab Simulink ◽  
Education Study ◽  
Electrical Engineering Education ◽  
Validation Technique

Abstrak: Penelitian ini bertujuan untuk mendeskripsikan pemanfaatan software Matlab Simulink sebagai alternatif media pembelajaran praktikum secara daring pada matakuliah Praktek Mesin Listrik di Program Studi Pendidikan Teknik Elektro Fakultas Teknik Universitas Negeri Medan. Subjek penelitian terdiri dari seluruh mahasiswa angkatan 2019 yang mengambil matakuliah Praktek Mesin Listrik di kelas C dan D yang berjumlah 25 orang. Pengumpulan data ditempuh mulai dari observasi, wawancara, dan analisis dokumen yang berkaitan dengan permasalahan tersebut.. Teknik validasi pada penelitian ini menggunakan validasi triangulasi teknik. Hasil penelitian menunjukkan bahwa pemanfaatan software Matlab Simulink dalam proses pembelajaran pada matakuliah Praktek Mesin Listrik cukup efektif membantu dosen dan mahasiswa dalam mencapai tujuan pembelajaran. Lebih lanjut, sebagian besar para mahasiswa memberikan respon positif terhadap proses pembelajaran yang dilaksanakan.  Kata Kunci : Matlab Simulink, media pembelajaran praktikum daring  Abstract: This research aims to describe the use of Matlab Simulink software as an alternative to online practicum learning media in the subjects of Electrical Machine Practice in the Electrical Engineering Education Study Program of the Faculty of Engineering, Medan State University. The study subjects consisted of all students of the class of 2019 who took electrical machine practice courses in grades C and D which amounted to 25 people. Data collection is taken starting from observation, interview, and analysis of documents related to the problem. The validation technique in this study uses the validation of triangulation techniques. The results showed that the use of Matlab Simulink software in the learning process in the electrical machine practice course is quite effective in helping lecturers and students in achieving learning goals. Furthermore, most of the students gave a positive response to the learning process carried out.  Keywords: Matlab Simulink, online practicum learning media

scholarly journals DESFĂȘURAREA VIRTUALĂ A LUCRĂRILOR DE LABORATOR DE MAȘINI ELECTRICE ÎN MEDIUL DE CALCUL MATLAB -SIMULINK

2021 ◽  
Vol 2020 (1) ◽  
pp. 1-11
Author(s):  
Leonard-Marius MELCESCU
Keyword(s):  
Distance Learning ◽  
Magnetic Circuit ◽  
Electrical Machines ◽  
Electrical Machine ◽  
Operating Characteristics ◽  
Computing Environment ◽  
Matlab Simulink ◽  
Simulation Testing ◽  
On Line ◽  
State Regime

"The paper presents the author's experience in supporting laboratory applications in the Electrical Machines course during the pandemic caused by the SARS-CoV-2 virus, when teaching hours were conducted online, like activities specific to the distance learning. The experiments in the laboratory works are simulated in the MATLAB-Simulink computing environment by using and adapting the existing transformer and electrical machine models in the SimPowerSystem library. The design of numerical applications was made so that the implementation of electrical diagrams is performed by students, given that they have no experience in numerical modeling of electrical machines. Several methods for obtaining the results from numerical experiments are presented, which allow to ensure a balance between the number of data specific to each experiment and the calculation effort required, so that the experiments can be performed in the time allotted to a laboratory work. Paper purpose: Description of practical teaching aspects related to the simulation classical tests of the electrical machines in MATLAB- Simulink, in order to virtualize the laboratory works and to adapt them to on-line distance learning. Elements of originality: 1. Developing models for adjustable circuit elements and instrumentation required for simulation testing of electrical machines in steady-state regime. 2. Development of the more accurate DC electric machines model that considers the magnetic circuit hysteresis. 3. Analysis of the methods of using the simulation schemes for obtaining in a reasonable time the data that allow the representation of the operating characteristics."

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