Predictive Control of Wind Turbine for Load Reduction during Ramping Events

Weipeng Liu, Changgang Li, Yutian Liu, Qiuwei Wu

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

With increasing penetration of wind power, the impact of its intermittence and volatility on power systems becomes more severe. A predictive control strategy for wind turbines (WTs) is proposed to deal with wind power ramping events and reduce WT load on the blades. The blade load model is based on the Blade Element Momentum (BEM) theory. The generator speed and pitch angle are simultaneously regulated to realize the control objectives. A two-stage optimization is designed in order to reduce the computational complexity. The objectives of the first stage are minimizing the ramping rate and maximizing the power generation. A trade-off is made between the two contradictory objectives by setting weight coefficients. The second stage reduces the WT load and meanwhile guarantees the power reference from the first stage is tracked. Feedback is designed based on neural network prediction to compensate the error of the prediction model. Case studies with a 1.5 MW WT were conducted to demonstrate the efficacy of the proposed predictive control strategy. Simulation results show that the proposed control can reduce the WT load during ramping events and the risk of ramping events.
Original languageEnglish
JournalInternational Journal of Electrical Power & Energy Systems
Volume93
Pages (from-to)135-145
ISSN0142-0615
DOIs
Publication statusPublished - 2017

Keywords

  • Predictive control
  • Wind turbine load
  • Wind power ramping events
  • Multi-objective optimization
  • Neural network prediction

Fingerprint Dive into the research topics of 'Predictive Control of Wind Turbine for Load Reduction during Ramping Events'. Together they form a unique fingerprint.

Cite this