With the increasing penetration of wind energy into electricity grids, energy storage will be required to dynamically adapt to the intermittency of wind energy. This article proposes a new two-stage constant power control system for a wind farm equipped with Dual Induction Generator (DFIG) wind turbines. Each DFIG wind turbine is equipped with a super capacitor energy storage (ESS) system and is controlled by low level wind turbines (WTG) and coordinated by a higher level wind farm monitoring control system (WFSC). . The WFSC generates the actual power references for the lower layer WTG commands based on the actual power demand of the network operator or the corresponding production commitment. The WKA lower layer regulators then control each DFIG wind turbine to produce the desired amount of active power, balancing the gaps between available wind energy and the desired active power through the SSE. In PSCAD / EMTDC, simulation studies will be carried out in a wind farm with 15 DFIG wind turbines to verify the effectiveness of the proposed regulatory system.
Constant power control (CPC), doubly fed induction generator (DFIG), energy storage, supervisory controller, wind turbine
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