Criteria for determining optimal penetration level of large-scale wind generation in interconnected systems: Part I: Methodology proposal

At present, the planning agencies define the percentage objectives of renewable generation with the sense of diversifying the energy matrix and achieving technical and economic sustainability. The objectives in the background may pursue different approaches when determining the optimum or mostly recommended percentage. In this sense, the work is focused on determining relevant technical and economic criteria that allow the definition of adequate percentages of large-scale wind generation. In the work, a methodology is developed that considers the construction of electrical studies scenario, including static, dynamic, voltage stability and contingency analysis, and future scenarios of economic operation. The methodology considers different degrees of wind energy input that allows in each case to assess the degree of technical vulnerability of the system and the cost of planning the long-term operation. In particular, to determine the degree of admissibility of wind power input, relevant operational factors of the operation of power systems are identified and valued. Finally, it recognizes the percentage of wind generation that locates the recommended percentage of additional income. The present article is the first of two papers that analyze the “Criteria for determining the percentage of large-scale wind energy to interconnected systems — Part I: Proposal of Methodology”. Additionally, a second article is presented, which uses the methodology applying it for a real case, Part II: Analysis of the Argentine case.