Power system transient stability enhancement using direct drive wind generators

Mokui, Hasmina Tari; Masoum, Mohammad A. S.; Mohseni, Mansour; Moghbel, Moayed

doi:10.1109/pesgm.2012.6345240

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…Traditionally, a PMSG is controlled to operate with the unity power factor [10]. In this mode, a PMSG has no reactive power exchange with the network, but recent grid codes require PMSGs to generate more reactive power during the abnormal low voltage periods [11]. For example, as stated by the SDLWindV grid code, the reactive component of the output current of a PMSG is required to increase by 2% for each 1% reduction in the unit terminal voltage when this voltage deviation is beyond the dead band [24].…”

Section: Pmsg Transient Behavior Analysismentioning

confidence: 99%

Impact Study of PMSG-Based Wind Power Penetration on Power System Transient Stability Using EEAC Theory

Liu

et al. 2015

Energies

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Abstract:Wind turbines with direct-driven permanent magnet synchronous generators (PMSGs) are widely used in wind power generation. According to the dynamic characteristics of PMSGs, an impact analysis of PMSG-based wind power penetration on the transient stability of multi-machine power systems is carried out in this paper based on the theory of extended equal area criterion (EEAC). Considering the most severe PMSG integration situation, the changes in the system's equivalent power-angle relationships after integrating PMSGs are studied in detail. The system's equivalent mechanical input power and the fault period electrical output power curves are found to be mainly affected. The analysis demonstrates that the integration of PMSGs can cause either detrimental or beneficial effects on the system transient stability. It is determined by several factors, including the selection of the synchronous generators used to balance wind power, the reactive power control mode of PMSGs and the wind power penetration level. Two different simulation systems are also adopted to verify the analysis results.

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Section: Pmsg Transient Behavior Analysismentioning

confidence: 99%