VECTOR CONTROLLED RELUCTANCE SYNCHRONOUS MOTOR DRIVES WITH PRESCRIBED CLOSED-LOOP SPEED DYNAMICS. Model of Reluctance Synchronous Motor. - PowerPoint PPT Presentation
Text of VECTOR CONTROLLED RELUCTANCE SYNCHRONOUS MOTOR DRIVES WITH PRESCRIBED CLOSED-LOOP SPEED DYNAMICS
VECTOR CONTROLLED RELUCTANCE SYNCHRONOUS MOTOR DRIVES WITH PRESCRIBED CLOSED-LOOP SPEED DYNAMICS
Model of Reluctance Synchronous MotorNon-linear differential equations formulated in rotor-fixed d,q co-ordinate system describe the reluctance synchronous motor and form the basis of the control system development.
Control Structure for Reluctance Synchronous Motor
Master Control Law
SET OF OBSERVERS FOR STATE ESTIMATIONAND FILTERING
Pseudo-Sliding Mode Observer for Rotor SpeedMotor equationsModel systemdefinition of error
Angular velocity extractor
The Filtering ObserverVJElectrical torque of SRM is treated as an external model input
Original control structure of speed controlled RSM
Simulation results (without MRAC) b1) dq-current angle control
Simulation results (with MRAC) b2) dq-current angle control
Effect of MRAC on Various Types of Prescribed Dynamicsa) constant torqueb) first order dyn.c) second ord. dyn.
Conclusions and RecommendationsThe simulation results of the proposed new control method for electric drives employing SRM show a good agreement with the theoretical predictions.The only departure of the system performance from the ideal is the transient influence of the external load torque on the rotor speed.This effect is substantially reduced if MRAC outer loop is applied.It is highly desirable to employ suggested control strategy experimentally.