Switched reluctance motor (SRM) drive has remarkable characteristics that make it attractive for high-speed applications. As the motor's speed increases the shape of the current waveform changes in such way that limits the production of motoring torque. At high speeds, it is possible for the phase current never reaches the desired value due to the self e.m.f. of the motor, therefore, the torque...

In this paper a low-cost sensorless control strategy of SR motor is proposed. The static flux-linkage characteristics of the motor are used for estimating the position. A number of discrepancies between the static and the dynamic characteristics of the motor are explained. In this paper the issues regarding eddy effects and mutual inductances in both static and dynamic conditions, and their inf...

Switched Reluctance (SR) Motor Drive is of great topical interest. It has the potential lo emerge as a viable option for variable speed applications. Though simple in construction, the motor is quite rugged, and has many attractive /eatures like high torque-to-inertia ratio, fault tolerance, and high eficiency. A number of converter topologies are prescribed for driving the motor. However, its ...

Abstract. The Switched Reluctance Motor (SRM) Drives have attracted the attention of many researchers in the recent past because of advantages like simple mechanical structure, adaptability to harsh environments like coal mining etc. But it has one main disadvantage of high torque ripple due to its double saliency structure. The Direct Torque Control (DTC) technique can minimize the torque ripp...

Switched Reluctance Motors (SRM) have inherent advantages such as simple structure with non winding construction in rotor side, fail safe because of its characteristic which has a high tolerances, robustness, low cost with no permanent magnet in the structure, and possible operation in high temperatures or in intense temperature variations. The torque production in switched reluctance motor com...

This paper investigates the problem of the position control in switched reluctance motor drives. Advanced proportional-integral (PI) and proportional-differential (PD) controllers for the speed and position control, respectively, are adopted. The parameters of the controllers are on-line fine tuned according to the load torque and rotor speed, for providing high dynamic performance and precise ...

A simple four-phase switched reluctance motor (SRM) drive for a ceiling fan is presented in this paper. Here, an asymmetric bridge converter preferred due to its independent phase control and design. The proposed based SRM has no speed current feedback loops, thereby eliminating the use of sensors complex computational logic. Position sensing carried-out using hall-effect drive. Analytical simu...

<span>Owing to the resilience and ease of control, switched reluctance motors are commonly utilized in electric vehicle drives. This paper provides a topology for multi-functional power converter motor based drive with driving, braking charging potentialities. With efficient control algorithms, single electronic is used motoring, regenerative braking, battery bank, resulting cost-effectiv...

The energy utilization ratio (ER) quantifies the of a Switched Reluctance Motor (SRM). Calculation ER an SRM can be different from other motors as it has highly non-linear operating characteristics and uses asymmetric bridge converter. In this paper, concept for SRMs been explained first then computation methodology is presented based on co-energy stored in magnetic system. are evaluated ANSYS ...