An investigation of IGBT open gate fault on field oriented control of induction motor drive system (original) (raw)
Related papers
A Novel Method for IRFOC of Three-Phase Induction Motor under Open-Phase Fault
International Journal of Power Electronics and Drive Systems, 2015
This paper investigates the vector control of a star-connected three-phase Induction Motor (IM) under stator winding open-phase fault. The used vector control method is based upon indirect rotor field-orientation concepts that have been adapted for this type of machine. Beside the implementation of this method in critical industrial applications, the proposed method in this paper can be used for vector control of unbalanced 2-phase or single-phase IM with two main and auxiliary windings. Simulation results are provided to show the operation of the proposed drive system.
Fault Analysis of Three Phase Inverter with Induction Motor Load
Now a days, induction motor applications are been increased. For the speed control of induction motor drive we need inverter. Conventional three-level inverter can drive the induction motor for its speed control. Out of various configurations of MLI, Diode clamped MLI is popular. It has the advantages of simple configuration and requires less number of individual DC sources. But the basic knowledge of faults in the inverter circuit can be very handy for the effective design of induction motor drive system. Knowing the types of faults that might occur in the inverter, fault mitigation techniques can be known and corresponding algorithm for fault mitigation can be prepared. Prior information regarding different types of faults in inverter is to be known to identify and to mitigate the faults. In this paper different types of faults in inverter were discussed. Basic three-level inverter was taken up for analysis driving induction motor. Faults like diode open, diode shot, gate open, gate short fault, IGBT open and IGBT short faults were discussed in detail along with their results. Models were developed using Matlab/Simulink.
Electric Power Components and Systems, 2016
This article presents a technique for vector control of starconnected 3-phase induction motor drives with an open-phase fault (faulty 3-phase induction motor) based on the rotor flux field-oriented control method. In this method, two appropriate transformation matrices are applied to the equations of faulty induction machine. It is shown that the structure of the derived faulty induction machine equations is similar to the healthy 3-phase induction motor equations; make it possible to control a faulty machine with some modifications in the conventional controller. Hence, a modified rotor flux fieldoriented controller that capable to control a star-connected 3-phase induction motor under open-phase fault is proposed. The performance of the proposed method is verified through simulations and experiments on a 1.5 kW star-connected 3-phase induction motor drive. The comparative results obtained from the simulations and experiments confirm the ability of the proposed control method in vector control of 3-phase induction motor during open-phase fault.
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/vectorized-control-of-a-three-phase-induction-motor-drive-subjected-to-three-phase-inverter-faults https://www.ijert.org/research/vectorized-control-of-a-three-phase-induction-motor-drive-subjected-to-three-phase-inverter-faults-IJERTV3IS051826.pdf This paper focuses on development of a vectorized model of multi inverter-motor combinations as used in locomotive. The main aim of this paper is to reduce the overall simulation time which is very large when six inverter-motor combinations are run serially. Method of vectorization is introduced to reduce the time taken during simulation of six inverter-motor sets.
Stator Field-Orientation Speed Control for 3-Phase Induction Motor under Open-Phase Fault
TELKOMNIKA (Telecommunication Computing Electronics and Control), 2015
The industrial requirements for the control of an induction motor (IM) under fault conditions continue to be of attention, as evidenced by the majority current publications. The focus is on developments of control methods which can be used for faulty IM. A novel vector control technique based on stator field-oriented control (SFOC) for a 3-phase IM under open-phase fault is proposed in this paper. MATLAB simulation results are presented to illustrate the improvement in performance of the proposed algorithm. It has shown that for providing an appropriate algorithm to control faulty machine with one opened phase, the modification in the conventional controller is possible.
Comparison Performances of Indirect Field Oriented Control for Three-Phase Induction Motor Drives
International Journal of Power Electronics and Drive Systems (IJPEDS), 2017
This paper presents the comparative performances of Indirect Field Oriented Control (IFOC) for the three-phase induction motor. Recently, the interest of widely used the induction motor at industries because of reliability, ruggedness and almost free in maintenance. Thus, the IFOC scheme is employed to control the speed of induction motor. Therefore, P and PI controllers based on IFOC approach are analyzed at differences speed commands with no load condition. On the other hand, the PI controller is tuned based on Ziegler-Nichols method by using PSIM software which is user-friendly for simulations, design and analysis of motor drive, control loop and the power converter in power electronics studies. Subsequently, the simulated of P controller results are compared with the simulated of PI controller results at difference speed commands with no load condition. Finally, the simulated results of speed controllers are compared with the experimental results in order to explore the performa...
Harmonic Analysis of Inverter-Fed Induction Motor Drive System under Fault Conditions using FFT
Indian Journal of Science and Technology, 2016
Harmonics are the major issues in Variable Frequency Drive systems. The objective of project is the analysis of harmonics in the signatures of motor current in various fault conditions of Variable Frequency Drive systems. The simulation is done on VSI fed induction motor at constant voltage/frequency and was carried out using MATLAB/ Simulink. Variable Frequency drives commonly uses "Insulated Gate Bipolar Transistor" (IGBT).To get sine wave at required frequency IGBT uses "Pulse Width Modulation" technique for simulation. Simulation of an induction was developed and by observing the current, torque and speed responses, its dynamic response was verified to set up the acceptability of the developed system. Simulation of three various fault conditions were carried out here: one IGBTs gate signal is open circuited, one IGBT in the inverter section is blown off, line to ground fault occurs in one phase of the motor terminal. The technique of frequency domain analysis is used as a method to discriminate various faulty conditions. For various faulted conditions frequency responses characteristics were analyzed and collated to setup the use of Fast Fourier Transform algorithm to distinguish the characteristics of fault. Frequency responses of three various faulty states were emphatically different and were indubitably shown.
Modelling of Faulty Three Phase Induction Motor by Field Orientation
Telkomnika: Indonesian Journal of Electrical Engineering, 2014
This study investigates the simple vector control of a 3-phase squirrel cage Induction Motor (IM) under open-circuit fault (faulty 3-phase IM). It was shown that it is needed to supply the stator windings with unbalanced currents to remove the oscillating term of the machine electromagnetic torque. The vector control system is based upon Field-Oriented Control (FOC) that has been adapted for this type of machine. Simulation results are provided to show the operation of the proposed drive system.
Balkan Journal of Electrical and Computer Engineering, 2017
In this paper multi-phase induction drive with a frequency converter is researched under open phase fault condition. Control strategy of stator voltage phase shift is proposed for dealing with over-currents during steady state. Symmetry of stator current trajectory is achieved. Experiments with six-phase induction motor without a neutral wire under one open phase condition were carried out. Index Terms-Current trajectory, induction motor, frequency inverter, multi-phase drive, open phase fault, scalar control. I. INTRODUCTION ULTI-PHASE induction motors have numerous advantages compared to three-phase induction motors such as reduced torque pulsations, magnetic flux harmonic reduction, reduction on the rotor harmonic current losses, dc link current harmonics and higher reliability under the loss of one or more stator phases [1-4]. Multi-phase induction motors are used in wind power systems, electrical and hybrid vehicles [5], electric ship propulsion [6], in 'more electric aircraft' actuators and in safety-critical applications, such as aerospace or military naval drives, where fault tolerance is a desirable feature [7].
International Journal of Power Electronics and Drive Systems (IJPEDS), 2023
The stability analysis is one of the most important elements to describe the performance of AC drive systems under both dynamic and steady-state operating circumstances. This is particularly essential because electric motors operate over a wide range of speeds and utilize complex control systems such as field-oriented control (FOC). This study establishes a smallsignal stability analysis (SSSA) in a 1-horsepower vector-controlled Y-connected three-phase induction motor (YCTPIM) drive during an insulated gate bipolar transistor short-circuits failure (IGBT-SCF). In the beginning, a vector control system that is based on the indirect rotor FOC (IRFOC) method is described for post-fault functioning of the YCTPIM while the IGBT-SCF is taking place. After that, a small-signal model of the system that has been provided is explored. This model is based on a voltagecurrent model, and it is constructed by linearizing the non-linear dynamic equations of the system. During IGBT-SCF, an IRFOC strategy as well as SSSA operations are carried out on the 1-HP, 380 V, and YCTPIM. In this research, both analytical and simulation-based methodologies are applied.