In this paper, we first show the differences in frequency response between formula-based inductance extraction and frequency dependent inductance extraction to demonstrate the need to capture high frequency effect. Then a novel frequency dependent reluctance extraction method is proposed by using a robust...
Calculation Amendments on One-phase Torque and Inductance of Switched Reluctance Motor Using prelinear flux model,correctly calculated one-phase electromagnetic torque of switched reluctance motor,corrected the mistake of existing formula.Bes... JZ Qiu - 《Micromotors》 被引量: 1发表: 2010年 SINGLE-...
Applying the co-energy formula to equations for torque, Tph=∂W(θph)∂θr, and energy, W(iph,θph)=iph∫0λph(iph,θph)diph yields an integral equation that defines the instantaneous torque per phase, that is, Tph (iph,θph)=iph∫0∂λph(iph,θph)∂θphdiph. Integrating...
Saturated aligned inductance 0.15 e−3 H Maximum flux linkage 0.486 Wb Inertia of the SRM 0.01 kg m2 Friction coefficient 0.005 N m/rad/s 5.1. SRM without parameter variation Fig. 7 depicts the SRM speed versus speed command, speed error between actual and speed command, the output SRM re...
Here—p is the number of pole pairs, Ld and Lq are d-q axes inductances respectively and id and iq are d-q axes currents flowing in the stator windings. As can be seen in Eq. (1) the main electromagnetic variables are the d-q axes inductances. As it was discussed previously, d-...
Switch reluctance motors (SRMs) have many advantages, such as easy construction, high reliability, low cost, and higher energy efficiency compared to the inductance motors. However, SRMs have a major drawback—severe torque ripple (TR), which causes a great deal of noise and movement. Hence, ...
In that formula, L is the self-inductance of an exciting coil 1, R is the resistance of the exciting coil 1, and C is capacity of the capacitor 2. Formula II--(R/2)sq. rt. C/L<1-- is formed from formula I. Thereby the fall time of a current is shortened and the maximum ...
开关式磁阻电机(Switched Reluctance Motors)是永磁电动机的另一种替代方案。这种电机在控制和部件的精细加工方面有一 … cnshuangxi.com|基于2个网页 2. 可变磁阻马达 苏武昌 / Wu-Chung Su ...可变磁阻马达(Switched Reluctance Motors) 温度控制( Temperature Control) ... ...
Slid Mode Control of Switch Reluctance Motor Based on Torque Inverse Model
4.The mechanical shaft doesn’t cross the magnetic flux.This new structure brings two main advantages.The first advantage is that the magnetic structure of rotor can be optimised and the minimum inductance (unaligned position) can be reduced.So, the electromagnetic torque is increased. The second...