Fewer Dead Trees, More Engagement


New grid codes impose fault ride through (FRT) requirements on massive doubly fed induction generator (DFIG)-based mostly wind parks connected to transmission systems in order to scale back the loss of giant generation power because of temporary faults. Recently, the main target is ready toward the development of different wind turbine technologies to reinforce the FRT capability of wind parks with no thought for transmission system protection schemes. This paper proposes a new communication-based mostly dual time–current–voltage (Dual-TCV) tripping characteristic for directional overcurrent relays (DOCRs) that considers the FRT capability of wind parks by taking quick fault isolation actions in transmission systems. The protection coordination drawback is formulated and solved to work out the optimal relay tripping settings. The proposed approach is tested on the IEEE 24-bus transmission system with up to eight DFIG-based wind parks. The outcome of this study reveals that protection schemes primarily based on DOCRs ruled by the proposed Twin-TCV tripping characteristic ensures fast fault isolations that considerably enhances the FRT operation of wind parks in adherence to grid code necessities. The transient analysis verifies the superior performance of the proposed protection approach in enhancing the FRT operation of wind parks.

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