5 MATERIALS AND METHODS
5.1 Data source for papers I-III
Como continuação dos estudos realizados nesta dissertação, as seguintes propostas de trabalhos futuros são sugeridas:
• Avaliar a estrutura de controle proposta (SM-PI) em conjunto com um PSS conven-
cional;
• Inserir informações do ângulo de carga na malha de realimentação do controlador
SM-PI;
• Implementação do modo dual do SM-PI, ou seja, utilizar o SM-PI durante os dis-
túrbios e o PI com ganhos fixos em regime permanente;
• Avaliar os problemas de estabilidade de tensão e angular ao utilizar os controladores
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Apêndice A
Ensaios laboratorial
Os ensaios laboratorial foram realizados para a obtenção dos parâmetros do ge- rador síncrono, necessários para efetuar todo o controle do gerador síncrono.
A.1
Equipamentos Utilizados para o Ensaio Laborato-
rial
Os equipamentos utilizados para o ensaio no laboratório foram:
• Máquina de corrente contínua (motor);
• Máquina síncrona de polos salientes (gerador); • Osciloscópio Agilent;
• Amperímetros; • Taco gerador.
Os dados de placa da máquina de corrente contínua são sumarizados na Tabela A.1.
Tabela A.1: Parâmetros da máquina de corrente contínua.
eacc = 220 V nmcc= 1800 RPM
APÊNDICE A. ENSAIOS LABORATORIAL 65
Os dados de placa da máquina síncrona são sumarizados na Tabela A.2: Tabela A.2: Parâmetros de placa da máquina síncrona de polos salientes.
esnomY△= 380/220 V ωr= 600 RPM
isnom= 7, 6 A cosφ= 0, 8
Sgs= 5 kVA fs= 60 Hz
Os ensaios foram obtidos com a bancada de ensaios ligada conforme o esquema da Figura A.1,no qual a máquina síncrona é acionada pela máquina de corrente contínua até a velocidade síncrona. Em seguida, os ensaios de curto-circuito e de circuito aberto foram realizados. K1 GS MCC A A A A A V ea efd eexc U1 V1 W1 U2 V2 W2 N RPM
Figura A.1: Esquema de ligação da plataforma experimental.