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Difference between induction and reluctance force[1]Example of a switched reluctance linear motor [1]
Switched reluctance linear motors (SRLMs) (also known as linear switched reluctance motors (LSRMs), variable reluctance linear motor or switched reluctance linear machines) are a type of electric machines called linear motors which work based on the principle of a varying magnetic reluctance for force generation. The system can be used in reversed mode and then is called Switched Reluctance Linear Generator. The SRLMs consist of two parts: the active part or primary part and the passive or secondary. The active part contains the windings and defines two main types of LSRMs: transverse and longitudinal. It is longitudinal when the plane that contains the flux lines is parallel to the line of movement and transverse when it is perpendicular. Other classifications are considering the windings totally concentrated in one coil per phase or partially concentrated in two poles per phase (i.e., single-sided) or four poles per phase (double-sided).[2] Switched Reluctance motors have been used extensively in clocks and phonograph turntables before, but nowadays, with the rising emphasis on energy efficiency, SR motors are taking more prominent roles in appliances, industrial uses, and commercial and vehicular applications and they are getting traction in the linear applications due to their simplicity, robustness, economic rationality, and high fault tolerance ability as compared with the Linear Synchronous and Linear Induction motors. The SRLM has been researched widely and there are applications of SRLMs and generators for example in wave energy conversion[3] or hyperloop ultra high speed transportation system.[4] One of the main advantages of the SRLM is that it does not require the use of permanent magnets, which are considered a scarce material, so it enables it to be deployed over long distances.
^Switched reluctance motors Presence, past and the future, retrieved 2023-06-09
^Garcia-Amoros, Jordi; Andrada, Pere; Blanque, Baldui (2020-09-09), "Linear Switched Reluctance Motors", Modelling and Control of Switched Reluctance Machines, IntechOpen, ISBN 978-1-78984-455-9, retrieved 2023-06-07
^García-Tabarés, Luis; Lafoz, Marcos; Blanco, Marcos; Torres, Jorge; Obradors, Diego; Nájera, Jorge; Navarro, Gustavo; García, Francisco; Sánchez, Andres (June 2020). "New Type of Linear Switched Reluctance Generator for Wave Energy Applications". IEEE Transactions on Applied Superconductivity. 30 (4): 1–5. doi:10.1109/TASC.2020.2981900. ISSN 1558-2515. S2CID 218973574.
^CIEMAT (20 February 2023). "CIEMAT - SCALE (SwitChed reluctAnce Linear motor for Electric ultra-high-speed) NextGenerationEU project". CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas).
and 27 Related for: Switched reluctance linear motor information
The switchedreluctancemotor (SRM) is a type of reluctancemotor. Unlike brushed DC motors, power is delivered to windings in the stator (case) rather...
through magnetic reluctance. Reluctancemotor subtypes include synchronous, variable, switched and variable stepping. Reluctancemotors can deliver high...
as the motor is correctly sized to the application in respect to torque and speed. Switchedreluctancemotors are very large stepping motors with a reduced...
magnets, reluctance saliency, or DC or AC electrical windings. Less common, AC linearmotors operate on similar principles as rotating motors but have...
permanent magnet synchronous motor (PMSM), but can also be a switchedreluctancemotor, or an induction (asynchronous) motor. They may also use neodymium...
describing three four-stator-pole motor types: one having a four-pole rotor forming a non-self-starting reluctancemotor, another with a wound rotor forming...
force in that circuit. Variation of reluctance is the principle behind the reluctancemotor (or the variable reluctance generator) and the Alexanderson alternator...
as an induction motor until it approaches synchronous speed, when the rotor "pulls in" and locks to the stator field. Reluctancemotor designs have ratings...
series DC motor connects the armature and field windings in series with a common D.C. power source. The motor speed varies as a non-linear function of...
iron keeper (low-reluctance circuit) horseshoe magnet with no keeper (high-reluctance circuit) electric motor (variable-reluctance circuit) some types...
rotor further. Another name is step motor, and it is suited for low speed and accurate position control. Reluctance machines can be supplied with permanent...
of one or more coils used as electromagnets in the configuration of a linearmotor that accelerate a ferromagnetic or conducting projectile to high velocity...
des Machines Électromagnétiques et Plus Particulièrement des Machines à Réluctance Variable" (PDF). Revue 3E (in French). I (3): 3–8. Archived from the original...
worst-case unbalanced (linear) load, the neutral current will not exceed the highest of the phase currents. Non-linear loads (e.g. the switch-mode power supplies...
referred to as "circuits"). Linear electrical networks, a special type consisting only of sources (voltage or current), linear lumped elements (resistors...
also a function of time and position. Inside a linear material, Maxwell's equations change by switching the permeability and permittivity of free space...
the charging of batteries to large power supplies for electronic systems, motors, and more. Very large quantities of electrical energy provided via direct-current...
had co-founded in Leeds, SwitchedReluctance Drives Ltd. Lawrenson is considered the father of the switchedreluctancemotor and associated drive technology...
energy loss in alternating current (AC) inductors, transformers, electric motors and generators, and other AC machinery, requiring special construction such...
many materials. In diamagnets and paramagnets, the relation is usually linear: M = χ H , B = μ H = μ 0 ( 1 + χ ) H , {\displaystyle \mathbf {M} =\chi...
43: 37–52. cited in Miller, T.J.E (2001). Electronic Control of SwitchedReluctance Machines. Newnes. p. 7. ISBN 978-0-7506-5073-1. Archived from the...
use a rotating magnetic field with a stationary armature. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used...
components such as inductors and transformers, and devices such as electric motors and generators. Electromagnetic induction was discovered by Michael Faraday...
40 volts. Series circuits for train lighting were superseded, first by motor-generators, then by solid state devices. Series resistance can also be applied...
evaluated for each section. Since this equation is primarily used to solve linear problems, the contributions can be added. For a very difficult geometry...
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