INTEGRATED ADAPTIVE CAPACITY CONTROL FOR A STEAM TURBINE POWERED CHILLER UNIT

摘要

A control system for a steam turbine driven chiller unit (10) is provided. The control system automatically utilizes the full range of the governor (48), compressor pre-rotation vanes (80), and hot gas bypass valve (84) capabilities to control the capacity of the chiller (10) and provide anti-surge and override control functions to prevent undesirable operational ranges while maintaining maximum efficiency of operation.