Download AVR UPGRADES

CONTENTS
TIIVISTELMÄ
ABSTRACT
1
INTRODUCTION ............................................................................................ 7
1.1 Wärtsilä ..................................................................................................... 7
1.2 Employer ................................................................................................... 7
1.3 Purpose of the Thesis ................................................................................ 8
2
THEORETICAL BACKROUND .................................................................... 9
2.1 Synchronous Generator ............................................................................. 9
2.1.1 Stator ........................................................................................... 10
2.1.2 Rotor............................................................................................ 10
2.1.3 Brushless Excitation .................................................................... 11
2.1.4 Excitation Power Supplies .......................................................... 12
2.2 AVR ........................................................................................................ 13
2.3 Operation of the Generating Set ............................................................. 14
2.4 Engine Operation Modes ........................................................................ 16
2.4.1 Speed Droop Control .................................................................. 16
2.4.2 Isochronous Load Sharing........................................................... 18
2.4.3 kW Control .................................................................................. 19
2.5 Generator Operating Modes .................................................................... 19
2.5.1 Voltage Droop ............................................................................. 19
2.5.2 Voltage Droop Compensation And Cross Current Compensation
19
2.5.3 Power Factor And var Control .................................................... 20
4
BACKGROUND ............................................................................................ 21
4.1 ABB Unitrol 1020 ................................................................................... 21
4.2 Purpose of the Instructions...................................................................... 22
4.3 Making of the Instructions ...................................................................... 23
4.4 Testing..................................................................................................... 23
5
CONTENTS OF THE INSTRUCTIONS ...................................................... 25
5.1 Initial Information ................................................................................... 25
5.2 Basic Setup And the New Setup ............................................................. 26