ISSN 1000-1026
CN 32-1180/TP
  • ISSN 1000-1026
  • CN 32-1180/TP

Citation: HUANG Yilong, XIE Min, LIU Mingbo.Model Predictive Control for Long-term Voltage Stability Based on Corrected Trajectory Sensitivities[J].Automation of Electric Power Systems,2012,36(3):28-33. DOI: [doi] copy

Model Predictive Control for Long-term Voltage Stability Based on Corrected Trajectory Sensitivities

  • Received Date: June 23, 2011
    Accepted Date: January 01, 1900
    Available Online: February 02, 2012

  • Abstract:

        In order to overcome the shortages of model predictive emergency voltage control method which is based on the existing trajectory sensitivities, exponential reference trajectory is introduced. This paper considers the effects of initial state changes on trajectory sensitivities at the post-fault sampling points. The control increment is estimated according to full process dynamic voltage simulation and then the trajectory sensitivities are corrected at the post-fault sampling points. Thus the corrected trajectory sensitivities are close to the actual trajectory sensitivities. Furthermore, the dynamic selecting strategy of control components considering the control cost is formulated in order to satisfy fast control requirements under emergency condition. Results on New England 10-machine 39-bus system demonstrate the feasibility and effectiveness of the corrected trajectory sensitivity method and selecting strategy of control components.

  • Keywords:

    voltage stability control; trajectory sensitivities; model prediction control; emergency control

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