Banca de DEFESA: YANDI ANIBAL GALLEGO LANDERA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : YANDI ANIBAL GALLEGO LANDERA
DATE: 26/08/2022
TIME: 08:00
LOCAL: Galpão do Departamento de Engenharia Elétrica, sala 014.
TITLE:

CONTROL OF HYBRID SYSTEMS GENERATION CONVERTERS FOR IMPROVING TRANSIENT STABILITY.

KEY WORDS:

Grid codes, transient stability; control strategies, distributed generation, inverters, synchronous machines.

PAGES: 188
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

In this work, a fault ride through control scheme for inverters that interface distributed generation sources with a power grid that contains conventional synchronous generators is developed and implemented. With the proposed control strategy, the inverter performs its usual tasks when the grid is under normal operating conditions. However, when the grid experiences a fault, the inverters start to operate so that the active powers delivered by the conventional synchronous generators are maintained as close as possible to the pre-fault values, in order to reduce the machines acceleration and system frequency oscillations. Simulations of the proposed control scheme are performed in MATLAB, considering large PV plants connected to the IEEE 9 bus test system. The proposed control strategy is further evaluated through experimental results performed in a prototype consisting of a synchronous generator and a distributed generation converter connected to the utility power grid. The results obtained show that, in comparison with using the grid codes requisites of several countries, the application of the proposed control strategy leads to the best transient stability performance.

BANKING MEMBERS:
Externo à Instituição - ALLAN FAGNER CUPERTINO
Externo à Instituição - CASSIANO RECH - UFSM
Interno - 2921718 - FABRICIO BRADASCHIA
Presidente - 1134081 - FRANCISCO DE ASSIS DOS SANTOS NEVES
Externo ao Programa - 1237647 - JOSE FILHO DA COSTA CASTRO
Interno - 1146270 - RAFAEL CAVALCANTI NETO