Torque/Power Density Optimization of a Dual-Stator Brushless Doubly-Fed Induction Generator for Wind Power Application

Han, Peng; Cheng, Ming; Jiang, Yunlei; Chen, Zhe

doi:10.1109/tie.2017.2726964

Cited by 35 publications

(22 citation statements)

References 21 publications

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“…Considerable research has been done in the field of windpower generation in order to design a highly suitable generator with special features, so that the power produced from the wind farms can meet the energy demands and supply in an efficient manner [12]- [15]. Several generators are developed and investigated, such as induction and synchronous generator [16]- [18]. Amongst these, the most popular one is the Permanent Magnet Synchronous Generator (PMSG) for the wind turbine [19].…”

Section: Figure 1 Model Of Wind-power Systemmentioning

confidence: 99%

Design and Characteristics Investigation of Novel Dual Stator Pseudo-Pole Five-Phase Permanent Magnet Synchronous Generator for Wind Power Application

et al. 2020

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The main focus of this paper is to design and characteristics investigation of Novel Dual Stator Pseudo-Pole Five Phase Permanent Magnet Synchronous Generator (NDSPPFP-PMSG) for wind power application. The proposed generator has a dual stator and two sets of five phase windings which enhance its power density and fault tolerant capability. The novelty of this generator is based on the fact that eight magnetic poles are formed using only four poles of actual magnets on both the surfaces of the rotor. For the designing and optimal electromagnetic performance of the proposed generator, a Dynamic Magnetic Circuit Model (DMCM) is reported. To validate the results obtained from DMCM, Finite Element Method (FEM) has been opted owing to its high accuracy. For showing the performance superiority, the proposed generator is compared with two conventional generators namely, Dual Stator Embedded-Pole Five Phase (DSEPFP) and Single Stator Single Rotor Five Phase (SSSRFP) PMSG. To compare their performances, FEM results are considered. The electromagnetic performance namely, generated Electromotive Force(EMF), percentage(%) Total Harmonic Distortion(THD) of generated EMF, generated EMF vs speed, terminal voltage vs load current, electromagnetic torque developed on rotor vs time, %ripple content in the torque, and %efficiency vs load current are investigated for all the three generators. From these investigations, it is found that the power density (power to weight ratio) of the proposed generator is maximum.

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Section: Figure 1 Model Of Wind-power Systemmentioning

confidence: 99%

Design and Characteristics Investigation of Novel Dual Stator Pseudo-Pole Five-Phase Permanent Magnet Synchronous Generator for Wind Power Application

et al. 2020

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“…The typical stator-flux-oriented control (SFOC) block diagram of BDFMs is shown in Fig. 11(a) [54], [57][58][59]; the step responses of independent active and reactive power control are shown in Figs. 11(b) and (c) respectively [59].…”

Section: Bdfmmentioning

confidence: 99%

“… Topological analysis of airgap field modulation phenomenon in BDFMs [26], [60], [61];  Emergence of new or improved machine topologies for higher torque density and/or efficiency [49], [50], [62][63][64];  Modeling and performance analysis taking into account the influence of harmonics, saturation and iron loss [65][66][67][68];  Design optimization considering the multi-port and multi-harmonic feature [58], [69][70][71];  Dynamic modeling and fundamental control, mainly for the cascading type and BDFIM due to their complex construction [72][73][74][75][76][77][78][79][80];  Control strategies and performance evaluation in stand-alone [81][82][83] and grid-connected wind power scenarios, especially on low-voltage ride-through (LVRT) [84][85][86], unbalanced or grid-fault conditions [57], [87], [88], etc.…”

Section: Bdfmmentioning

confidence: 99%

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Emerging Multiport Electrical Machines and Systems: Past Developments, Current Challenges, and Future Prospects

Cheng

Han

Buja

et al. 2018

IEEE Trans. Ind. Electron.

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Distinct from the conventional machines with only one electrical and one mechanical port, electrical machines featuring multiple electrical/mechanical ports (the so-called multi-port electrical machines) provide a compact, flexible, and highly-efficient manner to convert and/or transfer energies among different ports. This paper attempts to make a comprehensive overview of existing multi-port topologies, from fundamental characteristics to advanced modeling, analysis, and control, with particular emphasis on the extensively investigated brushless doubly-fed machines for highly-reliable wind turbines and power split devices for hybrid electric vehicles. A qualitative review approach is mainly adopted but strong efforts are also made to quantitatively highlight the electromagnetic and control performance. Research challenges are identified and future trends are discussed.

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“…Brushless doubly‐fed generators (BDFGs), which eliminate the brushes apparatuses, have become the attractive solutions because of their superiorities of higher reliability, easy realization of low‐speed direct drive, utilization of a partially rated power converter, and low maintenance costs . Therefore, the BDFGs have a broad application prospect in offshore wind power generation.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic design and optimization of dual‐stator brushless doubly‐fed wind power generator with cage‐barrier rotor

Hao

Zhang

et al. 2019

Wind Energy

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This paper explores the feasibility of an intuitive solution torque density for the existing brushless doubly-fed generator by dual-stator and cage-barrier rotor structure, so as to better adapt to the offshore wind power generation. The torque density of electrical machine is related to the key design parameters, such as the machine main dimensions, slot-pole combinations, coupling between stator and rotor, and nonmagnetic ring thickness. According to working principles and design requirements of electrical machine, the dual-stator brushless doubly-fed wind power generator (DSBDFWPG) with cage-barrier rotor is designed, and the key parameters relating to torque density are analyzed and discussed. Meanwhile, the main parameters of electrical machine are optimized by Taguchi method, such as air-gap length and nonmagnetic ring thickness. On this basis, the performance parameters of DSBDFWPG are analyzed by finite element method, which is verified by experimental tests. Through analysis of the results, not only the design requirements are satisfied by the DSBDFWPG, but also the correctness and rationality of machine design method can also be verified. Finally, the torque density and other aspects of designed DSBDFWPG are compared with dual-stator brushless doubly-fed induction generator, doubly-fed induction generator, asynchronous machine, and brushless doublyfed generator; it demonstrates the torque density improvement of the studied machine with its significance and value. KEYWORDS brushless doubly-fed machine, dual stator, electromagnetic design, optimization, torque density, wind power generator 1 | INTRODUCTION Because of the rapid development of wind energy in recent years, wind power becomes one of the main new energy powers. According to thelatest data from the Global Wind Energy Council, the global installed capacity is 486.7 GW, and the new installed capacity 1 is more than 54.6 GW in 2016. It is also observed that wind-generated electricity is valued by all countries. So far, the wind-generated electricity is mainly based on land, which has the disadvantages of regional limitation and wind speed instability. Thus, people began to seek from the land to offshore wind power. The wind energy resource developed by offshore wind farm is three times of that by the land wind energy resource. Meanwhile, the offshore generating capacity is 20% to 40% higher than that of the land. Compared with the land wind energy, the offshore wind energy has advantages with rich reserves, good stability, high wind speed, and easy prediction. 2,3 Therefore, the offshore wind power generation has become

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Torque/Power Density Optimization of a Dual-Stator Brushless Doubly-Fed Induction Generator for Wind Power Application

Cited by 35 publications

References 21 publications

Design and Characteristics Investigation of Novel Dual Stator Pseudo-Pole Five-Phase Permanent Magnet Synchronous Generator for Wind Power Application

Design and Characteristics Investigation of Novel Dual Stator Pseudo-Pole Five-Phase Permanent Magnet Synchronous Generator for Wind Power Application

Emerging Multiport Electrical Machines and Systems: Past Developments, Current Challenges, and Future Prospects

Electromagnetic design and optimization of dual‐stator brushless doubly‐fed wind power generator with cage‐barrier rotor

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