Power Decoupling Control of Open-Winding Brushless Doubly-Fed Reluctance Machine for Wind Power Generator Application

Zhang, Fengge; Fan, Shibo; Zhu, Liancheng; Cao, Wenping

doi:10.14257/ijca.2015.8.9.17

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Open-winding control strategies of BDFRM are used in the literature. An openwinding wind-driven BDFRM and its control system for power decoupling are introduced in [115]. To control the machine, a cascade bi-level inverter with a double-end power supply is used.…”

Section: Open-winding-based Strategiesmentioning

confidence: 99%

A Comprehensive Review on Brushless Doubly-Fed Reluctance Machine

et al. 2021

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The Brushless Doubly-Fed Reluctance Machine (BDFRM) has been widely investigated in numerous research studies since it is brushless and cageless and there is no winding on the rotor of this emerging machine. This feature leads to several advantages for this machine in comparison with its induction counterpart, i.e., Brushless Doubly-Fed Induction Machine (BDFIM). Less maintenance, less power losses, and also more reliability are the major advantages of BDFRM compared to BDFIM. The design complexity of its reluctance rotor, as well as flux patterns for indirect connection between the two windings mounted on the stator including power winding and control winding, have restricted the development of this machine technology. In the literature, there is not a comprehensive review of the research studies related to BDFRM. In this paper, the previous research studies are reviewed from different points of view, such as operation, design, control, transient model, dynamic model, power factor, Maximum Power Point Tracking (MPPT), and losses. It is revealed that the BDFRM is still evolving since the theoretical results have shown that this machine operates efficiently if it is well-designed.

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Section: Open-winding-based Strategiesmentioning

confidence: 99%

A Comprehensive Review on Brushless Doubly-Fed Reluctance Machine

et al. 2021

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“…The underlying control strategies have different objectives such as: power-winding unity power factor [11,18], minimum converter current or maximum torque per inverter ampere (MTPIA), minimum copper losses, maximum power factor [11], reactive power and torque control [19], or Direct Power Control (DPC) [20][21][22][23]. Besides, other approaches such as Open-Winding-Based control [24,25], improved Particle Swarm Optimization to adequately track the speed [26], and etc. have also been documented.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling and Control of BDFRG under Unbalanced Grid Conditions

2021

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The Brushless Doubly-Fed Reluctance Generator (BDFRG) is a potential alternative to the Doubly Fed Induction Generator (DFIG) in wind power applications owing to its reasonable cost, competitive performance, and high reliability. In comparison with the Brushless Doubly-Fed Induction Generator (BDFIG), the BDFRG is more efficient and easier to control owing to the cage-less rotor. One of the most preferable advantages of BDFRG over DFIG is the inherently better performance under unbalanced grid conditions. The study conducted in this paper showed that conventional vector control of the BDFRG results in excessive oscillations of the primary active/reactive power, electromagnetic torque, and primary/secondary currents in this case. In order to address such limitations, this paper presented a new control strategy for the unbalanced operation of BDFRG-based wind generation systems. A modified vector control scheme was proposed with the capability to control the positive and the negative sequences of the secondary currents independently, thus greatly reducing the adverse implications of the unbalanced supply. The controller performance has been validated by simulations using a 1.5 MW BDFRG dynamical model built upon the positive and negative sequence equations. The main benefits of the new control strategy are quantified in comparison with conventional PI current control design.

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