ENERGETICAL PERFORMANCES OF SINUSOIDAL PWM STRATEGY FOR THE INDUCTION MOTOR AND VOLTAGE INVERTER SYSTEM: SIMULATION AND EXPERIMENTAL APPROACH
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2011, Vol 35, Issue 35
Abstract
The electric drive is a main component of industrial equipment designed for small or large complexity, because the achievement of finished goods implies the adjustable mechanical energy available at the output of the system. Because the static converters are needfull in such a system, the evolution of the converter’s command sub-systems was also needful, to improve their performance. The aim of this paper is the energetical analysis of the drive system and it had been performed on an experimental stand and on it’s equivalent SIMULINK model for different static operation points. It was considered feeding the asynchronous motor from an indirect voltage source static converter using the sinusoidal modulation as command strategy. Two cases had been taken into consideration: feeding the motor with the same RMS voltages and achieving the same mechanical shaft power. The global model of the drive system, created in MATLAB/SIMULINK environment, provides all the needed information in order to calculate the parameter values for comparing the energetic performances, and highlights the fact that the load torque and frequency have their influence on power quality indicators. The frequencies considered for the energetic analysis are 10Hz, 20H and 50Hz, and the load was adjusted up to the nominal value. The induction motor model implements the equations which considers the magnetic resistance and main field saturation with the variation of the static magnetizing inductance, depending on the magnetizing current. The following power quality indicators had been taken in to consideration: efficiency, power factor, electrical losses.
Authors and Affiliations
Mihaita LINCA, Ileana-Anamaria MITRAN
Keywords
Related Articles
- EP ID EP129805
- DOI -
- Views 145
- Downloads 0
CPT application in Active Power Filtering
The current decomposition, based on the Conservative Power Theory (CPT), includes, beside the active, reactive and void components, an unbalanced component too. This way it is possible for the active filter to compensate...
Supply voltage and resistant torque influence on dynamic characteristics of reluctance synhronous motors
The reluctance synchronous motors, as well as the synchronous permanent magnet motors, are the best solution from technical and economic point of view, for low and middle powers. This paper presents a series of simulatio...
The Load Influence on the Diagnosis of the Three-Phase Rectifier by Using the Analytical Model Method
For the operation of the static power converters, the experience of an expert is absolutely necessary for competitive operation. Minor faults or defects of the elements of the static power converters can lead to ravag...
Control of Flow and Pressure in the Cooling Water Circuit of a Thermal Power Plant Using Fuzzy Logic
Optimum operation of cooling water systems means minimum use of water while maintaining proper temperatures to limit algae growth and cool all equipment properly. Combined, the application of inverters and cooling water...
Implementation and Adjustment of CPML for CE-FDTD Algorithm
A complex-envelope finite difference time domain (CE-FDTD) algorithm has been proposed in the literature as one of FDTD formulations that is very general. However, this method, didn’t receive a lot of scientific...