Voltage Stability Analysis in Electrical Power Systems Using Continuation Power Flow and Parallel Processing

• Grant number: 17/20001-2
• Support Opportunities: Regular Research Grants
• Start date: May 01, 2018
• End date: April 30, 2020
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Thales Sousa
• Grantee: Thales Sousa
• Host Institution: Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

The increasing demand for electricity associated to the inclusion of electrical power generation, that is not always accompanied by the adequate expansion of the physical structure of the system, has increased the difficulties in attending the loads due to the operation of the system is close to is loading limits. Environmental and economic constrains as well as using the interconnected and extremely complex transmission mesh in a still deregulated environment for unplanned purposes, difficult the system monitoring and controlling. In addition, the inclusion of intermittent generation sources exposes the system to stability problems, especially to voltage collapse. This phenomenon is characterized by losing the voltage control in one or more buses, spreading through the neighboring points causing that the voltage amplitudes reaches values out of the acceptable operation limits.To perform an analysis of systems stability, in order to avoid the collapse point, the techniques used in this work are the Continuous Power Flow and the Tangent Vector Method in a parallelized environment. Employing programming techniques through parallel processing, is aimed to divide the independent tasks into the available cores and accelerate the time for obtaining the solution. For that reason, this project will use the Central Processing Unit (CPU) and the Graphic Processing Unit (GPU) to make a comparative analysis on the efficiency and precision obtained in each one, in order to optimize the simulation of power systems tool. Results are focused in obtaining the voltage profile of power systems avoiding unnecessary computational wear. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

VASQUEZ, ANGIE D.; SOUSA, THALES; IEEE. A Parallel Processing Approach to Stability Analysis Considering Transmission and Distribution Systems. 2019 IEEE MILAN POWERTECH, v. N/A, p. 6-pg., 2019-01-01. (17/20001-2)