Title

Optimal allocation of reactive power resources to minimise losses and maintain system security

RIS ID

74657

Publication Details

E. Vittal, L. Meegahapola, D. Flynn & A. Keane, "Optimal allocation of reactive power resources to minimise losses and maintain system security," in 9th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants, 2010, pp. 1-6.

Abstract

Modern doubly-fed induction generator (DFIG) wind turbines have significant reactive power control capability, even during low wind speed conditions. This can improve system security by providing terminal voltage control at buses in the system. Generally, such control employs the full range of reactive power production from the turbine which can lead to increased system losses. By utilizing optimal power flow analysis, and limiting the range of reactive power production at certain wind farms, system losses can be minimized. If the reactive power of the wind farms are optimized to achieve the minimum system losses this may adversely affect the voltage security of the system. However, by proper allocation of reactive power control strategies across the wind farms in the system voltage security can be preserved while reducing the system losses in the network.

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