Contributions to Load Modeling for Power Systems Static and Dynamic Analysis

• Grant number: 10/17303-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2011
• End date: September 30, 2014
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Walmir de Freitas Filho
• Grantee: Tiago Rodarte Ricciardi
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 07/07404-9 - Development of computational tools for power systems planning and operation, AP.TEM

Abstract

Accurate mathematical and computational models from various electric power systems components are important in a scenario of power systems studies and simulations for grid planning and operation. Among the elements in the electricity generation, transmission and distribution systems, the loads are probably the most difficult ones to be accordingly represented. Though this research topic has been exhaustively explored, there is a renewed interest in industry and academia for power systems load modeling, due to several reasons, including the proliferation of smart meters, the appearance of non-conventional types of load and the continuing need for even more confident representation of different load response for system disturbances. This Ph.D. thesis proposes two contributions to power systems load modeling research field. The first one deals with a load modeling method based on measurements and the detection of natural voltage disturbances. The proposed scheme uses simple smart meters, installed close to customers with a main goal other than load modeling. The main idea is to use data provided by those meters to, in parallel to the main function performed by this device, provide to the utility information regarding load models, as a byproduct capable to add value to the investment in this meters. The second contribution is in the template based load modeling, a recently methodology proposed for dynamic modeling of large industrial facilities. In this thesis, a simplified Variable Frequency Drive (VFD) dynamic model is proposed, which one is based on a modified induction machine model. The proposed model is suitable to the dynamic load model structure proposed by the template based methodology and can be easily aggregated and analyzed in simulation software by basic users without the need of programming a complex model.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

RICCIARDI, Tiago Rodarte. Contributions to load modeling for power systems static and dynamic analysis. 2015. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação Campinas, SP.