Analysis of power distribution systems using the channel component transform method

• Grant number: 14/08542-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2014
• End date: July 31, 2015
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: José Carlos de Melo Vieira Júnior
• Grantee: Gustavo Mundim Caixeta
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The analysis of three-phase electrical power systems operating at steady-state condition is usually performed by modelling the network elements in phase components (abc) or in symmetrical components (positive, negative and zero). These approaches are both used to calculate load flow and short circuit. In this context, when a three-phase grid has non-transposed branches, its three-phase impedance matrix is full, either represented by phase components or by symmetrical components. In this project, we propose to analyse the feasibility of the Channel Component Transform (CCT) Method to decouple the impedance matrix, in such a way that a coupled three-phase system can be treated as three single-phase systems. Therefore, load flow calculations can be performed in a decoupled way. Moreover, the CCT Method can reveal important information about the characterization of the electrical system under analysis. Thus, this project will also investigate if the information obtained from the CCT Method is relevant to characterize the operating conditions of the distribution system, such as current and voltage unbalance. Provided the TCC method is shown as a feasible tool, this project will propose a new approach to analyse unbalanced three-phase power systems.