Equivalent and identification of integrated coupling parameter of variable speed constant frequency brushless doubly fed generator

Wang, Yiding; Su, Ji; Lai, Jidong; Xie, Bao; Shi, Yong; Yu, Hongru

doi:10.1007/s43236-021-00346-1

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…The internal unit electric machine (IUEM) is composed by the internal stator, internal air-gap and rotor internal magnetic-barrier. Equivalent salient number of poles in the rotor is the sum of the power and control windings pole pair number in [27][28][29], which is represented:…”

Section: Rotor Structurementioning

confidence: 99%

A dual-stator brushless doubly-fed generator for wind power application

2024

Archives of Electrical Engineering

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A novelty dual-stator brushless doubly-fed generator (DSBDFG) with magneticbarrier rotor structure is put forward for application in wind power. Compared with a doublyfed induction generator, the DSBDFG has virtues of high reliability and low maintenance costs because of elimination of brush and sliprings components. Therefore, the proposed structure has tremendous potential as a wind power generator to apply in wind power. According to the operating principle of electric machine, the DSBDFG is studied in wind power application. At first, the topology, the winding connecting, the rotor structure, the power flow chart of different operating models and the variable speed capability of electric machine are discussed and analyzed. Then, a 50 kW DSBDFG is designed. Based on the principal dimension of the design electric machine, the electromagnetic characteristics of the DSBDFG with different running modes are analyzed and calculated to adopt the numerical method. From the result, it meets the requests of electromagnetic consistency and winding connecting in the design electric machine. Meanwhile, it confirms the proposed DSBDFG has the strong ability of speed regulation.

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Section: Rotor Structurementioning

confidence: 99%

A dual-stator brushless doubly-fed generator for wind power application

2024

Archives of Electrical Engineering

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“…Dual-loop cascaded control structure is generally applied for DC-based DFIG to improve system performance [7], [8], [9], [10], [11], [12]. In [13], a direct resonant control scheme is presented to suppress the current harmonics and reduce the torque ripple simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Study on Single-Loop FCS-MPC for DC-Based DFIG System

Yan

Gao

et al. 2023

IEEE Access

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Doubly fed induction generator (DFIG) system suffers from complex control structure, slow dynamic response speed and cumbersome parameter design due to its traditional cascaded dual-loop control strategy. A single-loop finite control set model predictive control (SLMPC) is proposed in the paper for DC-based DFIG in DC grid, which simplifies its control structure and parameter design, and enhances system dynamic response. There are three improved aspects. First, the single-loop control structure is proposed to eliminate intermediate link in dual-loop cascaded structure, and enhance system dynamic response. Second, system reduced-order discretization algorithm is proposed by differential and integral discretization method to reduce finite control set model predictive control strategy (FCS-MPC) design difficulty. Third, cost function with nonlinear additional current limiting function is designed to protect system from overcurrent effectively. Finally, the feasibility of proposed strategy is verified by simulations and experiments.

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