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Probabilistic voltage stability constrained optimal power flow considering wind farms

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3 Author(s)
Keypour, R. ; Dept. of Electr. Eng., Semnan Univ., Semnan, Iran ; Rashidi, A.A. ; Jazaeri, M.

Increasing wind power penetration into power grids is desirable because of its environmental and other benefits, unfortunately wind farms could cause serious voltage stability problems due to their output variability and intermittency. So this paper proposes a method that determines the optimum penetration level of wind plants into power systems. To achieve this purpose, a nonlinear optimization problem is considered that combines the economical affects of the utilization of wind farms and voltage stability, with Voltage Stability Constrained Optimal Power Flow (VSC-OPF). Probabilistic nature of wind is incorporated with expected values of parameters that vary with wind speed. Furthermore, the impacts of this plant on voltage profile and power losses are evaluated with defined indices. The proposed method is implemented on IEEE 24 bus RTS. Results of simulation, comparison between various states and conclusion are duly drawn.

Published in:

Computational Technologies in Electrical and Electronics Engineering (SIBIRCON), 2010 IEEE Region 8 International Conference on

Date of Conference:

11-15 July 2010