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DGC Brushless Excitation - Emerson Process Management

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Table of Contents<br />

<strong>DGC</strong> <strong>Brushless</strong> <strong>Excitation</strong><br />

System Description<br />

1.0 INTRODUCTION 4<br />

2.0 BRUSHLESS EXCITATION SYSTEM 4<br />

2.1 Permanent Magnet Generator 4<br />

2.2 AC Exciter 5<br />

2.3 Rectifier Wheel 5<br />

2.4 Voltage Regulator 5<br />

3.0 <strong>DGC</strong> VOLTAGE REGULATOR SYSTEM 5<br />

3.1 Exciter Field Breaker 6<br />

3.2 Digital Generator Controller 6<br />

3.3 VME Modules 6<br />

3.3.a Single Board Computer 7<br />

3.3.b Analog and Digital I/O Unit (ADIOU) 7<br />

3.3.c I/O Interface Control Unit (IOICU) 7<br />

3.3.d VME Power Supply 8<br />

3.3.e Network Hub Module 8<br />

3.4 Field Interface Panel 8<br />

3.5 Base Adjuster 10<br />

3.6 Power Amplifiers 11<br />

3.7 Field Breaker 12<br />

3.8 Control Switches and Indications 12<br />

3.8.a Field Breaker Control Switch 12<br />

3.8.b Regulator Mode Control Switch 12<br />

3.8.c Voltage Adjuster Control Switch 13<br />

3.8.d Base Adjuster Control Switch 13<br />

3.8.e Regulator Output Meter 13<br />

3.9 Feedback Signals 13<br />

3.9.a Generator Terminal Voltage 13<br />

3.9.b Generator Stator Current 14<br />

3.9.c Exciter Field Current 14<br />

4.0 CONTROL SOFTWARE 14<br />

4.1 Operating and Control Modes 14<br />

4.1.a OFF Mode - Base Control 14<br />

4.1.b Test Mode - Base Control 14<br />

4.1.c ON Mode – Automatic Voltage Control 15<br />

4.1.d FORCED Mode – Base Control 15<br />

© <strong>Emerson</strong> <strong>Process</strong> <strong>Management</strong> Power & Water Solutions. - 2 -<br />

PWS_005075 [3]

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