scholarly journals Series Compensation of Self Excited Induction Generator Feeding Domestic Load

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2223-2226
Keyword(s):  
Dynamic Characteristic ◽  
Induction Motor ◽  
Dynamic Load ◽  
Dynamic Behaviour ◽  
Voltage Regulation ◽  
Induction Generator ◽  
Matlab Simulation ◽  
Series Compensation ◽  
Laboratory Experimentation ◽  
Three Phase

This paper presents a series compensated three phase self-excited induction generator feeding domestic load. This paper focus on the dynamic behaviour of Uncompensated SEIG and series compensated SEIG feeding dynamic load such as three phase induction motor. Various dynamic characteristic of SEIG feeding three phase induction motor is obtained by matlab/simulation and laboratory experimentation. The uncompensated and series compensated results is then compared to improve the voltage regulation of SEIG.

scholarly journals The influence of iron losses on selecting the minimum excitation capacitance for self-excited induction generator (SEIG) with wind turbine

2020 ◽  
Vol 19 (1) ◽  
pp. 11
Author(s):  
Hayder Hussein Kadhum ◽  
Ahmed Samawi Alkhafaji ◽  
Hayder H.Emawi H. Emawi
Keyword(s):  
Iron Loss ◽  
Induction Generator ◽  
Matlab Simulation ◽  
Accurate Analysis ◽  
Induction Generators ◽  
Iron Losses ◽  
Proposed Model ◽  
Three Phase ◽  
Steady State Model ◽  
Selection Of

<p>The capacitance selection of the three-phase self-excited induction generators (SEIG) driven by wind energy is influences by the iron losses. This paper is dealing with this problem by constructing a steady state model of the generator supplying an induction oil pump. No previous literature studying the requirements of selecting the minimum excitation capacitance under the iron loss impact is found. This work is focusing on: (i) a novel evaluation of the characteristics of the induction generator taking iron loss into account. (ii) the errors caused by neglecting the iron loss. (iii) the importance of including the iron-loss in any accurate analysis. (iv) the errors occurred in the selection of the precise excitation capacitance (C<sub>exct</sub>) when the iron-loss neglected. Nodal analysis is suggested to describe the study-state performance of the proposed model. A Matlab/simulation is established to validate the proposed model.</p>

scholarly journals Three-phase five-level CHB inverter fed induction motor for renewable applications

2020 ◽  
Vol 11 (3) ◽  
pp. 1145
Author(s):  
G. V. V. Nagaraju ◽  
G. Sambasiva Rao
Keyword(s):  
Induction Motor ◽  
Pulse Width Modulation ◽  
Dynamic Performance ◽  
Voltage Regulation ◽  
Multilevel Inverters ◽  
Three Phase ◽  
Capacitor Voltage ◽  
Source Voltage ◽  
Sinusoidal Pulse Width Modulation ◽  
Small Capacity

<p><span lang="EN-US">This paper presents the three-phase CHB inverter fed induction motor suitable for renewable energy source applications. Normally, all present existing multilevel inverters produce multilevel output, but the number of components required is more, bulk in size, more in cost. Which are more burdens to small capacity renewable sources. These challenges are eliminated in CHB inverter. This CHB mainly consisting of one DC source, one capacitor and eight switches in each phase. To generate a five-level output in phase to ground voltage, it is required to maintain the capacitor voltage (V2) at fifty percent of the DC source voltage (V1). This capacitor voltage is regulated by a sensor less voltage regulating technique. The sensor less voltage regulation works without any sensor devices. We can implement this technique with very less cost compared to other techniques. The sensor less voltage regulation is realized by level-shifted sinusoidal pulse width modulation. The simulation results show a very good dynamic performance. Controller maintains the capacitor voltage at fifty percent of the source voltage irrespective of main source voltage changes and load changes. Inverter generates a five-level wave at the output from line to ground and seven-level wave from line to line with fewer Harmonic. It is implemented in matlab/simulink and showing good dynamic performance.</span></p>

scholarly journals Model of Transient Process Where Three-Phase Transducer Feeds Induction Motor Equivalent as a Variable Active-Inductive Load

2016 ◽  
Vol 2016 ◽  
pp. 1-14
Author(s):  
Nenad Marković ◽  
Slobodan Bjelić ◽  
Jeroslav Živanić ◽  
Violeta Milićević ◽  
Zoran Milićević
Keyword(s):  
Induction Motor ◽  
Transient Process ◽  
Pulse Width Modulation ◽  
Induction Machine ◽  
Transient State ◽  
Matlab Simulation ◽  
Inductive Load ◽  
Phase Coordinates ◽  
Three Phase ◽  
The Time Domain

The paper presents a new approach in the analysis of a transient state in a system where the feeding source is a transducer-IGBT inverter and load is introduced through the induction motor with itsR-Lparameters. Induction motors with different parameters of powers and power factors are tested. MATLAB simulation of the three-phase inverter that feeds the induction machine has replaced the missing lab equipment with which mathematical model of this system was verified. According to the selected parameters of the inverter and induction machine and through the simulation in the MATLAB program, the results are obtained in the form of diagrams that verify the model of a transient state of the induction machine operation when it operates as a motor which is presented as a variableR-Lload. The transient process of the system three-phase bridge inverter whose active-inductive load is the induction machine in the conditions of the change of the load parameters is analyzed. The model of the transient process in the system formed by the inverter in PWM (Pulse Width Modulation) converter and induction machine is developed in the time domain and phase coordinates.

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