Interaction analysis between induction motor loads and STATCOM in weak grid using induction machine model

Purpose This paper aims to use a scaling approach to scale the solutions of a beforehand-simulated finite element (FE) solution of an induction machine (IM). The scaling procedure is coupled to an analytic three-node-lumped parameter thermal network (LPTN) model enabling the possibility to adjust the machine losses in the simulation to the actual calculated temperature. Design/methodology/approach The proposed scaling procedure of IMs allows the possibility to scale the solutions, particularly the losses, of a beforehand-performed FE simulation owing to temperature changes and therefore enables the possibility of a very general multiphysics approach by coupling the FE simulation results of the IM to a thermal model in a very fast and efficient way. The thermal capacities and resistances of the three-node thermal network model are parameterized by analytical formulations and an optimization procedure. For the parameterization of the model, temperature measurements of the IM operated in the 30-min short-time mode are used. Findings This approach allows an efficient calculation of the machine temperature under consideration of temperature-dependent losses. Using the proposed scaling procedure, the time to simulate the thermal behavior of an IM in a continuous operation mode is less than 5 s. The scaling procedure of IMs enables a rapid calculation of the thermal behavior using FE simulation data. Originality/value The approach uses a scaling procedure for the FE solutions of IMs, which results in the possibility to weakly couple a finite element method model and a LPTN model in a very efficient way.

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Including magnetic saturation in voltage-behind-reactance induction machine model for EMTP-type solution

IEEE PES General Meeting ◽

10.1109/pes.2010.5590195 ◽

2010 ◽

Author(s):

Liwei Wang ◽

J Jatskevich

Keyword(s):

Induction Machine ◽

Magnetic Saturation ◽

Type Solution ◽

Machine Model

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Advanced Induction Machine model in Phase Coordinates for Wind Turbine Application

2007 IEEE International Electric Machines & Drives Conference ◽

10.1109/iemdc.2007.383599 ◽

2007 ◽

Author(s):

L.A. Fajardo R. ◽

F. Iov ◽

F. Blaabjerg ◽

A. D. Hansen

Keyword(s):

Wind Turbine ◽

Induction Machine ◽

Machine Model ◽

Phase Coordinates

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Experimental Study of Various Parameters during Speed Control of Three-phase Induction Motor Using GPIC and LabVIEW

Annals of Emerging Technologies in Computing ◽

10.33166/10.33166/aetic.2021.01.005 ◽

2021 ◽

Vol 5 (1) ◽

pp. 51-62

Author(s):

Adnan Ahmed ◽

Abdul Majeed Shaikh ◽

Muhammad Fawad Shaikh ◽

Shoaib Ahmed Shaikh ◽

Jahangir Badar Soomro

Keyword(s):

Induction Motor ◽

Induction Motors ◽

Induction Machine ◽

Speed Control ◽

Industrial Applications ◽

General Purpose ◽

Three Phase ◽

Field Programmable ◽

Input Source ◽

Open Control

Induction motors are widely used from home to industrial applications. Speed of induction motor plays important role, so to control the speed of induction motor various techniques are adopted and one of these techniques is V/F control, which is adopted in this paper. This technique helps to control the speed in open control system in RPM. Moreover, Control is designed in LabVIEW, it is quite helpful to develop the circuit graphically and code is automatically written in the background to run on Field Programmable Gate Array (FPGA). The aim of this research is to study the impacts on diverse parameters during speed control of three phase induction machine with manipulation of GPIC. Solar technology is used as input source to drive the General-Purpose Inverter Controller (GPIC). Apart of this, impacts of modulation index and carrier frequency influencing the active, reactive and apparent power, temperature and power quality and current overshoot is analysed. MATLAB/Simulink and LabVIEW tools are used for simulation and results along with GPIC, Induction motor and solar panel as hardware.

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DESIGN AND SIMULATION OF THREE PHASE FIVE LEVEL AND SEVEN LEVEL INVERTER FED INDUCTION MOTOR DRIVE WITH TWO CASCADED H-BRIDGE CONFIGURATION

International Journal of Electronics and Electical Engineering ◽

10.47893/ijeee.2013.1062 ◽

2013 ◽

pp. 29-34

Author(s):

MANASA S ◽

BALAJI RAMAKRISHNA S ◽

MADHURA S ◽

MOHAN H M

Keyword(s):

Induction Motor ◽

Pulse Width Modulation ◽

Induction Machine ◽

Poor Quality ◽

Motor Drive ◽

Induction Motor Drive ◽

Voltage Reference ◽

Multilevel Converters ◽

Harmonic Elimination ◽

Three Phase

This paper deals with study of Three phase Five Level and Seven Level inverter fed induction motor drive . Both five level and seven level are realized by cascading two H- bridges. The poor quality of voltage and current of a conventional inverter fed induction machine is due to the presence of harmonics and hence there is significant level of energy losses. The Multilevel inverter is used to reduce the harmonics. The inverters with a large number of steps can generate high quality voltage waveforms. The higher levels can follow a voltage reference with accuracy and with the advantage that the generated voltage can be modulated in amplitude instead of pulse-width modulation. An active harmonic elimination method is applied to eliminate any number of specific higher order harmonics of multilevel converters with unequal dc voltages. The simulation of three phase five and seven level inverter fed induction motor model is done using Matlab/Simulink. The FFT spectrums for the outputs are analyzed to study the reduction in the harmonics.

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Uncertainty analysis of measuring system for instantaneous power research

Metrology and Measurement Systems ◽

10.2478/v10178-012-0050-7 ◽

2012 ◽

Vol 19 (3) ◽

pp. 573-582 ◽

Cited By ~ 9

Author(s):

Ariel Dzwonkowski ◽

Leon Swędrowski

Keyword(s):

Spectral Analysis ◽

Induction Motor ◽

Measurement System ◽

Electrical Power ◽

Induction Machine ◽

Uncertainty Estimation ◽

Measuring System ◽

Metrological Analysis ◽

Instantaneous Power ◽

Measurement And Analysis

Abstract The electrical power drawn by an induction motor is distorted in case of appearance of a certain type of failures. Under spectral analysis of the instantaneous power one obtains the components which are connected with definite types of damage. An analysis of the amplitudes and frequencies of the components allows to recognize the type of fault. The paper presents a metrological analysis of the measurement system used for diagnosis of induction motor bearings, based on the analysis of the instantaneous power. This system was implemented as a set of devices with dedicated software installed on a PC. A number of measurements for uncertainty estimation was carried out. The results of the measurements are presented in the paper. The results of the aforementioned analysis helped to determine the measurement uncertainty which can be expected during bearing diagnostic measurements, by the method relying on measurement and analysis of the instantaneous power of an induction machine.

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Effect of Parametric Variations and Voltage Unbalance on Adaptive Speed Estimation Schemes for Speed Sensorless Induction Motor Drives

International Journal of Power Electronics and Drive Systems (IJPEDS) ◽

10.11591/ijpeds.v6.i1.pp77-85 ◽

2015 ◽

Vol 6 (1) ◽

pp. 77 ◽

Cited By ~ 1

Author(s):

Mohan Krishna. S ◽

Febin Daya. J.L

Keyword(s):

Induction Motor ◽

Constant Load ◽

Motor Drives ◽

Speed Estimation ◽

Induction Motor Drives ◽

Speed Sensorless ◽

Machine Model ◽

Voltage Unbalance ◽

Space Harmonics ◽

Stator Resistance

Speed Estimation without speed sensors is a complex phenomenon and is overly dependent on the machine parameters. It is all the more significant during low speed or near zero speed operation. There are several approaches to speed estimation of an induction motor. Eventually, they can be classified into two types, namely, estimation based on the machine model and estimation based on magnetic saliency and air gap space harmonics. This paper analyses the effect of incorrect setting of parameters like the stator resistance, rotor time constant, load torque variations and also Voltage unbalance on various adaptive control based speed estimation techniques fed from the machine model. It also shows how the convergence mechanisms of the adaptation schemes are affected during these conditions. The equivalent models are built and simulated offline using MATLAB/SIMULINK blocksets and the results are analysed.

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