- Patent Title: Single-controllable low voltage microgrid, control process and use
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Application No.: US18543496Application Date: 2023-12-18
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Publication No.: US12322972B2Publication Date: 2025-06-03
- Inventor: Danilo Iglesias Brandão , Geovane Luciano Dos Reis
- Applicant: PETRÓLEO BRASILEIRO S.A.—PETROBRAS , UNIVERSIDADE FEDERAL DE MINAS GERAIS
- Applicant Address: BR Rio de Janeiro; BR Belo Horizonte
- Assignee: PETRÓLEO BRASILEIRO S.A.—PETROBRAS,UNIVERSIDADE FEDERAL DE MINAS GERAIS
- Current Assignee: PETRÓLEO BRASILEIRO S.A.—PETROBRAS,UNIVERSIDADE FEDERAL DE MINAS GERAIS
- Current Assignee Address: BR Rio de Janeiro; BR Belo Horizonte
- Agency: STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C.
- Priority: BR1020220258953 20221219
- Main IPC: H02J3/38
- IPC: H02J3/38 ; H02J3/18 ; H02J3/32

Abstract:
This technology refers to a control process for single-controllable low-voltage microgrids (Mgs) (SCM) having centralized communication. The process is based on the “Power-Based Control” (PBC) technique by adapting it to the context of SCMs through a modified PBC process (MPBC). The technology includes a process that provides the following technical effects: (1) sharing of active power and reactive power proportionately to the capacity of distributed energy resources (DERs or DGs) in the MG, for example, rendering the use of batteries based on different technologies (lead-acid, ion-lithium, etc.) compatible; (2) compensation for the current unbalance at the point of common coupling (PAC); (3) allows exploration of battery banks by balancing the charging status of storage elements; (4) allows implementation of the control process without knowing the electrical grid's parameters and topology; (5) is able to deal with the arbitrary connection of inverters into the MG, in addition to other advantages. The technology is applied in the technical field of equipment and infrastructure for the development of MGs.
Public/Granted literature
- US20240204531A1 SINGLE-CONTROLLABLE LOW VOLTAGE MICROGRID, CONTROL PROCESS AND USE Public/Granted day:2024-06-20
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