Impacts of High Penetration of Wind Power on Transmission System /

Abstract

Wind power penetration is rapidly increasing in the contemporary world. As penetration levels rise, new issues emerge in terms of the various effects they produce on the transmission network. It is of utmost importance to assess these impacts to ensure smooth and reliable operation of the electrical grid. Throughout this age, transmission network operators have formulized a variety of frameworks and tactics to account for the effects of integrating wind energy resources. In this study, numerous transmission network effects of high wind power penetration have been examined, and a general overview of issues with large-scale wind farm integration is provided. MATPOWER is used to run a single period AC Optimal Power Flow (AC OPF) on an altered version of IEEE-118 bus test case under various levels of wind power penetration to examine the effects on voltage profile, locational marginal prices (LMPs), congestion, line losses, and overall cost of generation. Furthermore, to analyze the impact of energy storage system (ESS) on wind integrated transmission system, a network constrained deterministic unit commitment using a multiperiod DC Optimal Power Flow (DC OPF) design is performed in MATPOWER Optimal Scheduling Tool (MOST) on the same test case resulting in a mixed integer optimization problem involving mixed integer quadratic programming (MIQP) solved using Gurobi.