This paper presents a flux-modulated direct drive (FMDD) motor. the in-wheel engine driving; especially the PM in-wheel motors have been paid much attention, which have the advantages of simple structure and high effectiveness. There are two types of PM in-wheel motors; one is the outer-rotor topology without gear; another is the inner-rotor one in which a planetary gear is employed. The former can provide the low-speed operation directly, but it causes big size and weighty weight. On the other hand, the second option has the advantages of Momelotinib reduced size and excess weight, but the planetary gear has the problems such as lubrication, transmission loss, and acoustic noise [3]. With the arrival of magnetic gears, magnetic transmission Mouse monoclonal to CD152(FITC) systems have been developed quickly [4]. The magnetic gear has some unique advantages when compared to mechanical gears: no mechanical fatigue; no lubrication; overload safeguarded; no contact deficits; no transmission contact acoustic noise; high effectiveness (only a little core loss and bearing loss); and high torque per volume ratio (ten instances the standard motors) [5]. When this type of magnetic gear is definitely coupled with a conventional PM engine, the overall torque denseness can be significantly improved. Based on this combination, a magnetic-geared PM engine is definitely proposed to be used as a direct drive engine [6]. Number 1(a) shows the configuration of this magnetic-geared PM engine with three air-gaps, which consists of four parts: the stator, modulation ring, inner rotor, and outer-rotor. The modulation ring is used to modulate the air-gap field space harmonics. The PMs are buried in the iron core of both rotors and magnetized in alien-polarity. However, the complicated structure causes developing difficulty and instability. Furthermore, its power denseness is limited by its high flux leakage and iron loss. In [7], an improved topology with two air-gaps is definitely proposed, in which the high-speed inner-rotor is definitely omitted, so the structure is simple. But the outer-rotor is the same as the three air-gap topology. In [8], another fractional-slot flux-modulated PM engine with two air-gaps is definitely developed. The rule for comparing the power denseness of electric motors is definitely proposed and its cogging torque is very small. It also confirms the magnetic-geared PM engine is definitely a better choice than the standard PM engine for low-speed drives. However, the same requirement of two or three air-gaps as that in [5C9] will lead to the same problems. Furthermore, experimental results are hardly ever given to verify the design, analysis, and control of magnetic-geared PM motors. Number 1 Construction of magnetic-geared PM engine: (a) three air-gaps and (b) the proposed engine. The major contribution of this paper is to propose and implement a flux-modulated direct drive (FMDD) engine, having a simple structure while incorporating the advantages of PM machines and magnetic gears. This paper will focus on the design, analysis, control, and experimental verification of the proposed engine. The engine configuration and operating principles will be explained in Section 2. The design criteria of the engine are offered in Section 3. Section 4 will be devoted to the Momelotinib electromagnetic analysis. The two-dimensional (2D) Momelotinib FEA is used to analyze the static overall performance of the engine. In Section 5, based on Matlab/Simulink, simulation of the whole travel system will be discussed. The implementation of test-bed and experimental results will also be given for verification. Finally, summary will be drawn in Section 6. 2. Engine Configurations and Operating Basic principle 2.1. Engine Topology As demonstrated in Number 1(b), it is the proposed flux-modulated direct travel engine for low-speed drives. The coaxial magnetic gear is definitely integrated into a PM machine; this gear is composed of three parts which are stator, outer-rotor, and stationary ring between them. It should be noted the stationary ring can.
This paper presents a flux-modulated direct drive (FMDD) motor. the in-wheel
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a 67 kDa type I transmembrane glycoprotein present on myeloid progenitors
and differentiation. The protein kinase family is one of the largest families of proteins in eukaryotes
Apoptosis
bladder
brain
breast
cell cycle progression
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CSP-B
Cyproterone acetate
EGFR) is the prototype member of the type 1 receptor tyrosine kinases. EGFR overexpression in tumors indicates poor prognosis and is observed in tumors of the head and neck
EM9
endometrium
erythrocytes
F3
Goat polyclonal to IgG H+L)
Goat polyclonal to IgG H+L)Biotin)
GRK4
GSK1904529A
Igf1
Mapkap1
monocytes andgranulocytes. CD33 is absent on lymphocytes
Mouse monoclonal to CD33.CT65 reacts with CD33 andtigen
Palomid 529
platelets
PTK) or serine/threonine
Rabbit Polyclonal to ARNT.
Rabbit polyclonal to BMPR2
Rabbit Polyclonal to CCBP2.
Rabbit Polyclonal to EDG4
Rabbit polyclonal to EIF4E.
Rabbit polyclonal to IL11RA
Rabbit polyclonal to LRRIQ3
Rabbit Polyclonal to MCM3 phospho-Thr722)
Rabbit Polyclonal to RBM34
SB 216763
SKI-606
SNX-5422
STK) kinase catalytic domains. Epidermal Growth factor receptor
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TNFSF8
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