Conservative Power Theory for Harmonic Voltage Responsibility Assignment

Author(s)

Branco Arcadepani, Matheus ^[1] ; Tardivo Rodrigues, Diego ^[1] ; Candido Moreira, Alexandre ^[2] ; Bonaldo, Jakson Paulo ^[3] ; Guillardi Junior, Hildo ^[4] ; Morales Paredes, Helmo Kelis ^[1]

Affiliation

^[1] Sao Paulo State Univ Unesp, Inst Sci & Technol, Sorocaba - Brazil

^[2] Univ Fed Sao Joao del Rei, Ouro Branco, MG - Brazil

^[3] Fed Univ Mato Grosso UFMT, Dept Elect Engn, Cuiaba - Brazil

^[4] Univ Estadual Campinas, Sao Paulo - Brazil

• Document type: Journal article
• Source: IEEE Latin America Transactions; v. 20, n. 3, p. 443-450, MAR 2022.
• Web of Science Citations: 0

Abstract

Discussions on the different methods for sharing responsibilities regarding harmonic distortions in power grids have received wide attention in the area of power quality. This paper proposes a methodology based on Conservative Power Theory (CPT) for responsibility assignment due to the harmonic voltage distortions present at the point of common coupling. First, a theoretical basis for analyzing the orthogonal current decomposition of CPT under non-sinusoidal conditions is presented. Next, using the frequency domain, a methodology is introduced to separate the contributions of the harmonic voltage distortions in the CPT's orthogonal currents. To illustrate the application of the proposed methodology, it is simulated a real large-scale electrical system composed of an energy utility and three industrial plants connected to the same common coupling point. Finally, the results obtained are compared to other method showing the effectiveness of the proposed approach. (AU)

• FAPESP's process: 16/08645-9 - Interdisciplinary research activities in electric smart grids
• Grantee: João Bosco Ribeiro do Val
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 17/22629-9 - Development of compensation techniques and methodologies for power quality analysis of modern distribution systems
• Grantee: Helmo Kelis Morales Paredes
• Support Opportunities: Scholarships abroad - Research