HVDC Transmission Technology of Wind Power System with Multi-Phase PMSG

Zhou, Shijia; Rong, Fei; Yin, Zhangtao; Huang, Shoudao; Zhou, Yuebin

doi:10.3390/en11123294

Cited by 4 publications

(2 citation statements)

References 32 publications

(33 reference statements)

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“…This PMSG uses a pair of three-phase windings in the stator, one of them connected in the "star" and the second in the "delta" configuration. So, the windings consist of two sets of three phase windings, which are spatially phase shifted by 30 electrical degrees and operate in a six-phase mode [19][20][21]. The multiphase machines, despite the higher costs of their manufacturing, compared to the three-phase machines, offer many more options for their use as converters of mechanical energy into electricity or vice versa [22,23].…”

Section: Introductionmentioning

confidence: 99%

A Wind Energy Conversion System Based on a Generator with Modulated Magnetic Flux

et al. 2020

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In this work, the concept of an energy conversion system for wind turbines based on the modified permanent magnet synchronous generator (PMSG) is presented. In the generator, a pair of three-phase windings is used, one of which is connected in a “star” and the second in a “delta” configuration. At the outputs of both windings, two six-pulse uncontrolled (diode) rectifiers are included. These rectifiers are mutually coupled by a specially designed pulse transformer, whose primary winding is powered by the power electronics converter—the so-called “current modulator”—which, in this case, operates as a magnetic flux modulator, in the generator. The modulator provides a quasi-sinusoidal magnetomotive force (mmf) in the stator of the machine. The whole system is connected to the power grid via a dedicated voltage source inverter (VSI) converter. The main objective of the elaborated solution is to provide high efficiency conversion of mechanical (wind) energy into electricity by means of a relatively simple electrical system.

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Section: Introductionmentioning

confidence: 99%

A Wind Energy Conversion System Based on a Generator with Modulated Magnetic Flux

et al. 2020

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“…The proportion of grid-tied voltage source converters (GVSCs) in the power grid has been expanding with the increases in renewable power generation capacity and voltage source converter-based high-voltage direct current [1,2]. On the one hand, GVSCs can rapidly adjust the power distribution by changing the reference values of the cascade control systems [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Dynamic Response of Grid-Tied VSC During Electromechanical Oscillations of Power Systems

et al. 2019

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This study focuses on the dynamics of a grid-tied voltage source converter (GVSC) during electromechanical oscillations. A small-signal model with GVSC port variables (DC voltage and AC power) as the outputs and a terminal voltage vector as the input is derived to reveal the passive response of the GVSC on the basis of the power equation in the d–q coordinate system. An input–output transfer function matrix is constructed according to the proposed model. The frequency response of this matrix in the electromechanical bandwidth is described to reflect the dynamic behavior of the GVSC. The effects of the operation parameters, i.e., the grid strength, reference value of the control system, and grid voltage, on the dynamic behavior of the GVSC in the electromechanical bandwidth, are investigated using frequency domain sensitivity. Analysis results show that the GVSC generates responses with respect to the electromechanical mode. These responses have different sensitivities to the operation parameters. The IEEE 10-machine power system simulation is performed, and the power hardware-in-the-loop platform with the GVSC was applied to validate the analysis.

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