METHOD AND APPARATUS FOR CONTROLLING MOISTURE SEPARATOR REHEATER

摘要

A system and a method are provided that may be used to control the temperature of steam being reheated by a moisture separator reheater (MSR). One embodiment provides a system including a steam turbine, a moisture separator reheater coupled to the steam turbine, and a controller programmed to control a temperature of steam leaving the moisture separator reheater based at least in part on sensor feedback. The controller is programmed to facilitate substantially smooth linear temperature ramping.

主权项

1. A method for operating a turbine system, comprising:
supplying first main steam from a main steam source to a high pressure steam turbine to enable the high pressure steam turbine to rotate a shaft in the turbine system using the main steam; supplying exhaust steam from the high pressure steam turbine to a moisture separator reheater to enable the moisture separator reheater to produce thermally enhanced steam by reheating the exhaust steam using second main steam received from the main steam source; supplying the thermally enhanced steam from the moisture separator reheater to a low pressure steam turbine to enable the low pressure steam turbine to rotate the shaft using the thermally enhanced steam; determining, using one or more sensors, a measured temperature of the thermally enhanced steam output from the moisture separator reheater; and controlling supply of the second main steam from the main steam source to the moisture separator reheater based at least in part on the measured temperature to facilitate substantially linearly ramping temperature of the thermally enhanced steam.