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With more wind power integrated into power grid, its impact on voltage is larger so that the command that wind farm should support voltage and reactive power in wind power integrated region is required by system. Based on this, a reactive power compensation control method is proposed considering voltage and reactive power command in integrated region. The voltage of point of interconnection (POI)...
Crowbar-based control is one of the main low voltage ride through (LVRT) control methods for doubly-fed induction generator (DFIG), but converter is still at risk of being damaged by over-current at rotor side after crowbar exits during fault recovering period. For the issue, a model for fault process analysis based on equivalent dynamic model of DFIG is established. The mechanism of phase angle jumping...
A VAR regulation strategy is proposed in this paper to solve VAR and voltage stability caused by wind farm integration. The strategy first calculates VAR demand of the wind farm by deviation of reference voltage and measured voltage of wind farm monitor bus. Then VAR demand will be distributed by equal power factor algorithm to aggregate wind generators and later single wind generator in the wind...
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