The project was to convert the control of three boiler feed water pumps to Variable Voltage Variable Frequency (VVVF) drives having a capacity of 750 m3/H @ 220 Kg/Cm2 pressure and power rating of 6200 KW each.
The main focus of this report is the design and development of the protection system, sequence of operation, bypass system, speed control system, drum level control and graphic interface. It also includes PID controller tuning for VVVF drive smooth control.
Table of Contents
Executive Summary:
Table of Figures
Introduction:
Background:
Responsibilities & Challenges:
Planning
Hardware Planning:
Software Planning:
Execution:
Sequential Logic Development
Mode Selection:
VVVF Drive ON/OFF Commands:
BFP Minimum Flow Protection:
Sequence System:
Control Logic Development
Boiler Drum Volume:
Boiler Drum Hold up Time:
Unit Run Back Logic:
Boiler Drum Water Consumption Rate:
Drum Level Controller Calculations:
Boiler Drum Level Adaptive Control:
Standby Drum Level Control:
DCS Self-sustainability:
Simulation & Commissioning:
Results & Achievements:
- Citar trabajo
- Tehseen Ahmad (Autor), 2015, Implementation of Variable Frequency Drives (VFD) on Boiler Feed Water Pumps for Drum Level Control, Múnich, GRIN Verlag, https://www.grin.com/document/298967
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¡Carge sus propios textos! Gane dinero y un iPhone X.