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This paper presents the field oriented vector control scheme for synchronous reluctance motor (SRM) drives, where current controller followed by hysteresis comparator is used. The test motor has a star-connected wound stator and a segmental rotor of the multiple barrier type with an external incremental encoder to sense rotor position. The magnetic...
Contexts in source publication
Context 1
... result of magnetic flux calculation is shown in Figure 3 for only 1/6 of the machine due to symmetry considerations. The achievable saliency ratio is limited by two factors: the d-axis permeance cannot be zero and the laminations are subject to saturation in the q-axis. ...
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Purpose
This paper aims to deal with direct torque controller when the five-phase induction motor drive in faulty operation. Precisely, open-phase fault condition is contemplated. Also, the DTC is combined with a speed-adaptive variable-structure observer based on sliding mode observer.
Design methodology/approach
Two novel features are presented....
Citations
... In this paper, the split link converter is used to reduce the cost of the converter [7], it has high efficiency under heavy load conditions. In [2], DSP (TMS320F28335) processor were implemented because of the fast operation compare with other processor. The Vibration not only creates noise to hurt human health but also has the energy at the time affect the equipment life as well as operation stability. ...
The Switched Reluctance Motor (SRM) is getting large attention for industry application due to their simple construction, high starting capabilities, high reliability, and high efficiency and also rotor carries no windings, no slip-rings there is no brushes, it requires less maintenance. In spite of the merits, it had some demerits like acoustic noise and vibration is one of major issues in SRM. The DSP-TMS320F28335 processor were implemented due to their high performance for the control applications.In this work the Random Pulse Width Modulation (RPWM) technique is used to reduce the acoustic noise and vibration by varying random turn on and turn off angle control.The acoustic noise and vibration signals are measured using accelerometer and sound level meter in 1HP, 8/6poles of SRM drive. The experimental analysis of vibration signals are measured using Lab VIEW at different speeds and load conditions. The acoustic noise signals are measured using Sound level meter .Both the Acoustic and vibrations are analyzed experimentally for different speeds and load conditions. The experimental results show that the noise and vibration analysis and also compare the sinusoidal PWM is better than Random PWM techniques.
... Then, this set of stator poles is excited to bring the rotor poles into alignment. It is because of this simple mechanical construction that SRMs carry the low manufacturing cost, and also it provides high reliability, wide-speed range at constant power, fast dynamic response, ruggedness and fault-tolerance, 80% efficiency depending on the application and high starting torque [2]- [3]. This in turn has motivated a large amount of research on SRMs in the last decade. ...
This paper presents the experimental investigation of DSP based 4Ф Switched Reluctance Motor (SRM) Drive. SRM is a doubly-salient, singly-excited machine and having very simple construction, has a low inertia and allows an extremely high-speed operation. The control system of SRM is highly complex due to non linear nature. In such a system for implementing control algorithm needs high speed processor. In this work TMS320F28335 DSP processor is used to implement the inner loop PI current controller and outer loop PI speed controller. The TMS320F28335 is highly integrated, high performance solution for challenging control applications. The various experimental tests are carried out in 1 HP 4Ф SRM. The experimental results are reported in order to verify the steady state, transient and robustness performance of the controller. © 2015 Institute of Advanced Engineering and Science. All rights reserved.
... Then, this set of stator poles is excited to bring the rotor poles into alignment. It is because of this simple mechanical construction that SRMs carry the low manufacturing cost, and also it provides high reliability, wide-speed range at constant power, fast dynamic response, ruggedness and fault-tolerance, 80% efficiency depending on the application and high starting torque [2]- [3]. This in turn has motivated a large amount of research on SRMs in the last decade. ...
p class="Default">This paper presents the experimental investigation of DSP based 4Ф Switched Reluctance Motor (SRM) Drive. SRM is a doubly-salient, singly-excited machine and having very simple construction, has a low inertia and allows an extremely high-speed operation. The control system of SRM is highly complex due to non linear nature. In such a system for implementing control algorithm needs high speed processor. In this work TMS320F28335 DSP processor is used to implement the inner loop PI current controller and outer loop PI speed controller. The TMS320F28335 is highly integrated, high performance solution for challenging control applications. The various experimental tests are carried out in 1 HP 4Ф SRM. The experimental results are reported in order to verify the steady state, transient and robustness performance of the controller.</p
Recently, synchronous reluctance motors have become serious competitors against induction motors and permanent magnet synchronous motors. The emergence of new rotor geometric configurations and the developments in the areas of power electronics and control have improved the performance of SynRM in a wide range of speeds, reaching simultaneously high efficiency and power density values. Furthermore, the operating principle based on the magnetic reluctance allows this motor type to exhibit much more advantageous mechanical characteristics.
Therefore, the present work aims to study a drive based on SynRM. The control strategy applied to the drive is based on the rotor field oriented control, aiming to the implementation and analysis of the maximum torque per ampere (MTPA) strategy. The work comprises a detailed computational study using mathematical models. Thus, initially, the main features, principle of operation, applications and the current state of art regarding this motor type are present.
Then, a description of the drive elements is performed, addressing the SynRM mathematical
model and theory associated to the vector control used on the drive. Afterwards, the obtained
simulation and experimental results for the mathematical model validation are shown. Finally,
the developed MTPA control strategy is analyzed, taking into account the effects of the magnetic
saturation and the iron losses into the motor control, in order to maximizing its efficiency.
