Abstract—In wind farms (WF), the mo

Abstract—In wind farms (WF), the most popular and commonlyimplemented active power control method is the maximum powerpoint tracking (MPPT). Due to the wake effect, the upstream windturbine (WT) in WFs has more active power generation than thedownstream WT at the wind directions and wind speeds that theWF has wake loss. In the case that WTs support the voltage controlby reactive power, the upstream WT’s power converter may haveshorter lifetime even below the industrial standard. In this paper,based on the analysis of the wake effect, the reactive power capability of the doubly fed induction generator (DFIG) WT, and thelifetime of the DFIG WT’s power converter, a reactive power dispatch method is proposed in theWF with DFIGWTs to improve thelifetime of the upstream WT’s power converter. The proposed reactive power dispatch method is analyzed and demonstrated by thesimulation on a WF with 80 DFIG WTs. It can be concluded that,compared with the traditional reactive power dispatch method, theproposed method can increase the lifetime of the upstream WT’spower converter.Index Terms—Li