Modelagem estática de carga através de medição direta e utilização de técnicas de otimização

Abstract

This work presents a new methodology for static load modeling using direct field measurement procedures and optimization techniques. For this purpose, a new field measurement procedure was developed based on a specific voltage variation schedule obtaind from ULTC forced operations, in order to mitigate load natural disturbances (fluctuations). Following in, optimization techniques are applied on the measurement data set using estimation problems theory to extract both polynomials and exponential static load models. In addition, a new polynomial load model, named Extended Model, whicth is basically a nth-degree polynomial, was presented to better depict voltage variation load dependency. Thus, estimated and measured data curves were plotted together for comparison, showing full adherence and therefore suitability for practical use. Finally, this work discusses the critical impacts and main benefits for load flow studies and suggests some application procedures, mainly addressed to power Transmission and Distribution Planning and Operation issues.