Analysis of Complementary Wind Power Plants in Bulk Power Systems

This paper proposes an investigation of the operating conditions of the electric system concerning the voltage levels at the buses and active power flow in the lines in a growing scenario of penetration of wind sources with spatio-temporal complementarity characteristics. This analysis considers the integration of correlated wind farms and investigates how the arrangement of complementary wind plants can mitigate the effects of fluctuations in the electrical system. The investigation applies the load flow analysis of the IEEE 57 Bus system, considering growing scenarios of wind plants integration in the states of Maranhão, Cearã, Bahia, and Rio Grande do Sul with correlated generation data. The generation and load values were obtained through the operation reports of the Brazilian Independent System Operator. To quantify these effects, the indicators of violations in voltage levels and power flow limits in the lines, the PIV and PIMW, respectively, already presented in the literature, have been used. As a result of this investigation, it has been identified that scenarios with arrangements of complementary wind plants from the spatio-temporal point of view are capable of minimizing violations in the operating parameters of the electric system.