Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines [PDF]
Direct Torque Control (DTC) has been extensively researched and applied to most AC machines during the last two decades. Its first application to the Brushless Doubly-Fed Reluctance Machine (BDFRM), a promising cost-effective candidate for drive and ...
Chaal, Hamza, Jovanovic, Milutin
core +2 more sources
Improved rotor-position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]
This paper presents an improved signal-injection- based sensorless-control method for permanent-magnet brushless ac (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes. The d- and q-axis incremental
Bingham, Chris +4 more
core +3 more sources
Model-Based Field Winding Interturn Fault Detection Method for Brushless Synchronous Machines
The lack of available measurements makes the detection of electrical faults in the rotating elements of brushless synchronous machines particularly challenging. This paper presents a novel and fast detection method regarding interturn faults at the field
Kumar Mahtani +3 more
doaj +1 more source
Online optimal flux-weakening control of permanent-magnet brushless AC drives [PDF]
An enhanced online optimal control strategy, which maximizes the flux-weakening performance of a brushless AC motor, is described, and applied to motors having different rotor topologies: interior (radial or circumferential), inset, and surface-mounted ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
core +1 more source
This paper presents the use of identification reference nets (IRNs) for modeling electric power system (EPS) components using electrical machines (EMs) as an example.
Krzysztof Tomczyk +2 more
doaj +1 more source
Analytical modeling of open-Circuit air-Gap field distributions in multisegment and multilayer interior permanent-magnet machines [PDF]
We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and ...
Chan, C.C. +3 more
core +1 more source
A Novel Brushless Wound Rotor Synchronous Machine Utilizing Inherent Sub-Harmonic Component
Permanent magnet synchronous machines (PMSMs) contain a simple structure, high efficiency, and simple control. However, their cost has increased significantly due to the increase in the price of permanent magnets. Wound rotor synchronous machines (WRSMs)
Muhammad Ahsan Ul Haq +3 more
doaj +1 more source
Brushless Field Excitation Scheme for Wound Field Synchronous Machines
A new harmonic field excitation technique for the brushless operation of wound field synchronous machines (WFSMs) is proposed in this paper. The proposed scheme involves conventional three-phase and single-phase inverters operating at different ...
Syed Sabir Hussain Bukhari +3 more
doaj +1 more source
PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]
The adoption of Permanent Magnets in small brushless machines for automotive applications is becoming frequent. Some research on bonded magnets is being carried on to substitute the ferrites.
Ferraris, Luca +3 more
core +1 more source
Steady State Operating Points of the Doubly Fed Cascaded Induction Machine
Doubly Fed Induction Machines (DFIM) have many industrial applications and are also used as Wind Power generators. The brushes, necessary to supply energy to the rotor, are the main drawback of these machines.
Fellipe. L. Neves +4 more
doaj +1 more source

