DC Microgrid with Wind Energy Conversion System Based on Switched Reluctance Generator Operating in Grid Connected Mode

Author(s)

dos Santos Neto, Pedro Jose ; dos Santos Barros, Tarcio Andre ; de Paula, Marcelo Vinicius ; de Souza, Ramon Rodrigues ; Carvalho Silveira, Joao Pedro ; Ruppert Filho, Ernesto ; Tsuzuki, MDG ; Junqueira, F

• Document type: Journal article
• Source: 2018 13TH IEEE INTERNATIONAL CONFERENCE ON INDUSTRY APPLICATIONS (INDUSCON); v. N/A, p. 8-pg., 2018-01-01.

Abstract

This article presents a proposal to control a DC microgrid with distributed wind energy conversion system (WECS) based on switched reluctance generator (SRG) operation in the grid connected mode. SRG is recommended to be used in applications with a wide range of speed, such as WECS. On the other hand, DC microgrids are gaining importance as an alternative for AC microgrids because DC grids are more reliable, efficient and simple to control. Since SRG generates direct current, these machines are natural candidates to operate in DC microgrids. In this paper, direct power control is applied to generate the maximum output power from a wind turbine with SRG. Proper distinction between low and high speeds of operation is presented. A bidirectional DC-DC converter is used to connect the wind turbine in the DC microgrid in order to achieve the SRG optimal excitation voltage while the DC bus is kept constant. A voltage source converter is employed to build up the DC bus from the AC grid. Energy storage system and customer loads are included in the simulation. The simulation results have shown that the proposed DC microgrid control with SRG penetration is feasible, reliable and achieve high performance in the grid connected mode, while the DC bus voltage is kept stable with the power flow working properly. (AU)

• FAPESP's process: 17/21087-8 - Study and implementation of the control and the energetic management of a DC microgrid, with wind energy conversion system, using the switched reluctance generator.
• Grantee: Pedro Jose dos Santos Neto
• Support Opportunities: Scholarships in Brazil - Doctorate
• 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: 17/21640-9 - Study and development of control and drive techniques for the use of switched reluctance machines in electric vehicles.
• Grantee: Tárcio André dos Santos Barros
• Support Opportunities: Regular Research Grants