A distributed control for active power curtailment within a wind farm based on ratio consensus algorithms

Power networks with renewable energy always encounter the imbalance between supply and demand. One case is that during the peak load, generation is normally low or zero and other generation plants adjust more to meet with requirement. The other is during peak generation period, the generated power will exceed the load and be injected to the grid, which will cause the voltage rise and extra power curtailment is essential. To solve the latter problem, this paper proposes a ratio consensus based distributed control scheme to dispatch the curtailment power within a wind farm. Detailed distributed control scheme with ratio consensus algorithms is theoretically illustrated. System was developed in MATLAB software. The result of case study on the proposed system demonstrated the effectiveness of the curtailment strategy.