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Based on the rebuilt of control rule base, a modified type PI-like fuzzy logic controller (FLC) with output scaling factor (SF) self-tuning mechanism is proposed in this paper for application in the switched reluctance motor (SRM) drive system. This paper intends to simplify the construction hierarchy and computational complexity of the controller by trimming the number of fuzzy sets in the membership...
A new fault diagnostic parameter, applied to switched reluctance motor drives, is presented. The proposed parameter is a partial average power based on the power converter supply current and the rotor mechanical position information. At high speed operating conditions phase current is not regulated and the machine closed-loop control only needs to observe one current, which is the power converter...
It is known that control strategies for most electrical machines are derived based on machine parameters, which are constant for most of the excitation range. However, due to the salient pole nature of Switched Reluctance Motor (SRM), the machine inductance is not only a function of the rotor angle but also is a function of the excitation current. This complicates the development of control strategies...
A fault tolerant control strategy of SRM drives is presented. The mean rotor mechanical speed is sustained, under the absence of one motor phase, due to an increase in the electromagnetic torque reference and the consequent increase of the healthy phases current amplitudes. Dynamic problems as excessive pick phase current and electromagnetic torque overshoot, due to the lack of one motor phase, are...
This paper presents the a adaptive sliding mode speed control design procedure for robust stabilization and disturbance rejection of the current sensorless synchronous reluctance motor (SynRM) drive system. In this paper, we proposed a novel adaptive sliding mode control to avoid the conventional sliding mode control, which causes high frequency chattering and high gain phenomenon drawbacks due to...
This paper describes a new rotor position sensorless control method for switched reluctance motor (SRM) drives based on the variation of an active phase inductance. The phase inductance regularly varies with the rotor position and increases as the rotor and stator poles are approaching alignment. When the rotor and stator poles are aligned, the phase inductance has a maximum value, and thereafter...
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