Research methodology the main purpose of this study is controlling an induction motor by using field oriented control in a parallel hev application. Comparison between direct and indirect field oriented. Vector control, also called fieldoriented control foc, is a variable frequency drive vfd control method in which the stator currents of a 3 phase induction motor are identified as two orthogonal components that can be visualized with a vector. Indirect vector control of a redundant linear induction motor for aircraft launch. Simulation results have shown the algorithm had good performances.
Basic scheme of field oriented control of induction motor. Pdf simulation of indirect vector control of three phase. Direct field oriented control of induction motor drive ieee xplore. The vector control of induction motors is one of the most suitable and popular speed control technique presently used. This paper deals with the detailed comparative investigation of high performance control schemes of induction motor. An908 using the dspic30f for vector control of an acim.
The indirect vector control of induction motor is the same as the direct vector control method but with a difference that the unit vectors are generated in an indirect. Indirect field oriented control for induction motor drive using space. Characteristics of linear induction motor considering. Lecture 35 vector control of induction motor youtube. Indirect field oriented control for induction motor drive. Srinu naik abstract vector control is becoming the industrial standard for induction motor control. Speed control of induction motor using vector control. In any machine drive system, current control directly influences both flux and torque developed directly. Comparison of direct and indirect vector control of.
This paper proposes the implementation of 3phase induction motor through indirect vector controlled induction motor im drive involves decoupling of the stator current into torque and flux producing components of an induction motor. The vector control of induction motors is one of the most suitable and popular speed. Traditional indirect vector control system of induction motor introduces conventional pi regulator in outer speed loop. Parameter estimation and indirect vector control of ac. Field oriented control or vector control vc techniques are being used extensively for the control of induction motor. This paper introduces a smart speed control system for induction motor using. The vector control technique decouples the two components of stator current space vector. An intelligent speed controller design for indirect vector controlled induction motor drive system shaija p ja, asha elizabeth daniela aschool of engineering, cusat, kochi22, india abstract the aim of this paper is to present an indirect vector control technique rotor field oriented for a three phase induction motor. Indirect field oriented control ifoc is known to produce high performance in induction motor im drives by decoupling rotor flux and torque producing. Index termslinear induction motor, equivalent circuit.
High performance drive a system employed for motion control using electric motor as a prime. The schemes investigated are indirect vector control and direct torque control of induction motor which gives good dynamic behaviour. An induction motor is presented as an electromechanical power converter, and basic relations between the electrical, magnetic and mechanical quantities in the motor will be explained. Conference paper pdf available november 2009 with 268. Flux estimation methods to obtain the rotor flux angle required for the vector control of an induction motor are examined. The induction motors were characterized by complex, highly nonlinear and timevarying dynamics, and hence their promptness control is a stimulating problem in the engineering applications especially in high performance drive system. Speed control of an induction motor by using indirect vector control method ashutosh mishra1, prashant choudhary2 abstract the in this paper, an implementation of intelligent controller for speed control of an induction motor im using indirect vector control method has been developed and analyzed in detail. Because of the low maintenance and robustness induction motors have many applications in the industries.
Difference between direct and indirect vector control of. Comparison of direct and indirect vector control of induction motor. Pdf comparative study of indirect vector control and. The indirect vector controlled induction motor drive involves decoupling of the stator current in to torque and flux producing components. These problems can be solved using vector control or field oriented control. Induction machine, vector control method, svpwm, picontroller, field oriented control, indirect field oriented control. Speed control of an induction motor by using indirect. This paper details the software implementation and comparison of a vector control scheme indirect field oriented control with scalar control scheme direct torque control for ac drive used for induction motors. This paper involves pid controller of driver and motors with fuzzy logic techniques. Vector control system for an induction motor with indirect rotor flux orientation 5 3. This paper presents the implementation of indirect vector control of three phase induction motor using hysteresis band pwm current control and synchronous current control in psim environment. Indirect field oriented control of threephase induction. Their popularity is due to their high efficiency, reliability, low maintenance.
Pdf this paper presents an implementation of adaptive sliding mode controller asmc based robust speed control strategy for indirect vector control. One component defines the magnetic flux of the motor, the other the torque. The induction motor mathematically modeled in the rotor flux reference frame is presented. Pdf speed control of induction motor drive based on.
The decoupling control between the rotor flux and the torque is no longer achieved in terms of stator current components this paper introduces a decoupled rotor flux and torque control based on. The paper presents a vector control model of induction machine with. Introduction synchronous rotation speed of the induction motor is determined by three phase electric grid frequency and the number of motor poles, i. The field orientation principle in control of induction motors. Comparison between direct and indirect field oriented control of. This paper presents an implementation of adaptive sliding mode controller asmc based robust speed control strategy for indirect vector control ivc three phase induction motor im drive. It should be mentioned that the field orientation principle can be used in control not only of induction asynchronous motors, but of all kinds of synchronous motors as well. Performance analysis of three phase induction motor. Indirect vector control of induction motor using sliding. Abstractvector control is becoming the industrial standard for induction motor control.
These motors have no brushes to wear out or magnets to add to the cost. Objectives a generalized indirect vector control formulation that allows for multiple, coupled stators does not exist in the literature. An3476, washing machine threephase acinduction direct. The indirect vector control in case of induction machines, the control is usually performed in the reference frame dq attached to the rotor flux space vector. Vector control theory background the ac induction motor acim is the workhorse of industrial and residential motor applications due to its simple construction and durability. There are essentially two general methods of vector control.
Pdf indirect vector control of a variable frequency induction. Svpwm algorithm is used to control a voltage source inverter fed indirect vector controlled induction motor drive to have optimum use of the dc bus voltage and maximum output torque. The compensation is based on equivalent circuit parameters variation and indirect vector control. Pdf indirect vector control of induction motor researchgate. Doublecage induction machine model, indirect vector control, constant vf control. Pdf performance analysis of indirect vector control of. Pdf simulation of fuzzy sliding mode controller for.
Indirect vector controlled ivc induction motor drives used in high. Introduction induction machines with double cage rotor winding are commonly utilized in. Keywords fig double cage induction motor, constant vf control, indirect vector control. Vector controlled induction motor drives the previous control strategies good steadystate but poor dynamic response oscillation resulted from the air gap flux vector control fieldoriented control is related to the phasor control of the rotor flux. The two components are defined in the synchronously rotating reference frame. Parameter estimation and indirect vector control of ac induction motor.
The previous control strategies good steadystate but poor. The indirect vector controlled induction motor drive involve decoupling of the stator current in to torque and flux producing components. Pdf the paper emphasis a solution for induction motor speed control. An intelligent speed controller design for indirect vector. Indirect vector control of a redundant linear induction.
Indirect vector control of induction motor using fuzzy logic controller. The paper presents a fuzzy logic speed control system based on fuzzy logic approach for an indirect vector controlled induction motor drive for high performance. The project is complete mathematical model of field orientation control foc induction motor is described and simulated in matlab for studies a 50 hp37kw, cage type induction motor has been considered. Direct vector control and indirect vector control are introduced as two techniques of the vector control for an induction motor. Indirect vector control of induction motor using fuzzy. The analysis, design and simulation of the fuzzy logic controller for indirect vector control of induction motor are carried out based on fuzzy set theory. Similar to indirect vector control, various controllers have been implemented on direct vector controlled induction motor drives also to improve the performance of the drive. The content of this book is divided into three basic parts. The proposed slidingmode controller is compared with pi controller with no load and various load condition. Comparison of direct and indirect vector control of induction motor b. This technique allows a squirrel cage induction motor to be driven with high dynamic performance comparable to that of a dc motor. Induction motor drive using indirect vector control with.
The paper emphasis a solution for induction motor speed control. The simulation model of the induction motor drive is developed using the principle of indirect foc. In this chapter, the mathematical model of induction motor based on space vector theory and the principle of indirect foc are presented. A particular control scheme among them can be chosen depending upon requirement of application. Vector controlled drive systems with the so called brushless d. The main effort is to replace dc motor by an induction motor and merge the advantages of both the motors together into variable speed brushless. Implementation of 3phase induction motor through indirect. This drive features closedloop speed control based on the indirect or feedforward vector control method. Speed control of induction motor drive based on indirect vector control using pi controller. Pdf indirect vector control of induction motor using. Vector controlled induction motor drive operates like a separately.
Vector control, also called fieldoriented control foc, is a variablefrequency drive vfd control method in which the stator currents of a threephase ac electric motor are identified as two orthogonal components that can be visualized with a vector. Comparison between direct and indirect field oriented control of induction motor venu gopal b t research scholar, department of electrical engineering uvce, bangalore university, bengaluru abstract vector control, also called fieldoriented control foc, is a variable frequency drive vfd control method in which the stator currents of a 3. Abstract vector control, also called fieldoriented control foc, is a variable frequency drive vfd control method in which the stator currents of a 3 phase induction motor are identified as two orthogonal components that can be visualized with a vector. With the help of this control technique the induction motor can replace a separately excited dc motor.
Indirect vector control of induction motor alexandru onea1 vasile horga2 marcel ratoi2 1department of automatic control and technical informatics 2department of electric drives gh. The paper presents a vector control model of induction machine with four parameters only. Indirect vector control of three phase induction motor using. In this paper, an indirect field oriented control ifoc method is proposed. The fieldoriented control induction motor drive block represents a standard vector or rotor fieldoriented control drive for induction motors.
Most of these applications need fast and smart speed control system. Indirect vector control of a variable frequency induction motor drive vcimd. The analysis, design and simulation of the slidingmode controller for indirect vector control induction motor are carried out. Modeling and simulation of indirect field oriented control. In this paper, an implementation of intelligent controller for speed control of an induction motor im using indirect vector control method has been developed and analyzed in detail. Index termsinduction motor, vector control, speed control, ac motors. Thesis on vector control of induction motor vector control motor wikipedia vector control, also called fieldoriented control foc, is a variablefrequency drive vfd control method in which the stator currents of a threephase ac electric motor are identified as two orthogonal components that can be visualized with a vector. With scalar control, only the magnitude and frequency of the supply voltage are controlled without phase control absent feedback by rotor position. Thats why the implementation of vector control requires information on the modulus and the space currents of the induction machine are separated into flux and. Comparison study of vector control of induction motor using rotor. Simulation of indirect field oriented control of induction. Currently the use of threephase induction machines has been increased tremendously in industrial applications due to several methods available to control the speed and torque of the motor.
Scalar control is suitable for application where the load is constant. Gopakumar, centre for electronics design and technology, iisc bangalore. One called the direct or feedback method, and the other, the indirect or feed forward method. The different control schemes of induction motor drives are including scalar control, vector or field oriented control, direct torque control, and adaptive control etc. The paper presents a slidingmode speed control system for an indirect vector controlled induction motor drive for high performance. While the direct method is inherently the most desirable control scheme, it suffers. Vector control of an ac induction motor washing machine threephase ac induction direct vector control, rev. Block diagram of indirect vector control of induction motor drive. Indirect field oriented control ifoc is known to produce high performance in induction motor im drives by decoupling rotor flux and torque producing current components of stator current. Thesis on vector control of induction motor 876924. Modern method of static frequency conversion has liberated the. The main advantage of this minimum number of parameters model consists in the measurements possibilities of them. Typical openloop rotor flux observers by using the voltage model, current model, and combined. A novel adaptive pi based on fuzzy logic reasoning flr is presented in this paper for indirect vector control ivc three phase induction motor im.
Speed control of vector controlled induction motors using. Indirect field oriented control for induction motor ieee. Indirect vector control of multi cage induction motor. Fuzzy logic is based on the fuzzy logic set theory which contains variables having degree of membership from 0 to 1. Variable frequency drives implement the scalar or vector control of an induction motor.
984 924 714 1318 569 703 183 1519 790 1574 908 827 1062 18 282 572 195 1281 919 1587 284 1102 804 919 1483 1572 1098 836 1248 602 1032 920 946 39