CONTROL SYSTEM AND METHOD FOR BIOMASS POWER PLANT

摘要

A system and a method for controlling operation of a power plant system. The system has at least a gasifier, a boiler, an induced draft fan, and a baghouse. A controller in communication with the system is configured to implement a first stage and/or a second stage sequences after detecting loss of flame in the boiler using a temperature measurement device. The method includes automatically bypassing the baghouse and controlled (e.g., decreasing) the speed of the induced draft fan in the system to relight the boiler. The input feed to the gasifier can be limited and devices operated for a predetermined amount of time before reigniting the boiler.

主权项

1. A method for controlling operation of a power plant system, the power plant system comprising at least a boiler, a fan, and a baghouse; the boiler having a flame for igniting exhaust gas from burned fuel and for providing power, and a measurement device configured to measure a temperature of the boiler and to detect loss of flame based on the temperature; the baghouse configured to receive exhaust gas from at least the boiler to remove particulates therefrom; and the fan configured to run at a first speed to draw filtered exhaust gas from the baghouse; and a controller in communication with the power plant system configured to implement the method after detecting loss of flame in the boiler using the measurement device, the method comprising:
detecting the loss of flame in the boiler; then automatically bypassing input of exhaust gas to the baghouse; and automatically adjusting the speed of the fan to at least a second speed for a predetermined amount of time.