INTEGRATED CONTROL OF POWER GENERATION FACILITIES IN PAPER PLANTS

摘要

In general, a pulp and paper plant is comprised of a pulp factory, paper machines, coaters, and utility facilities for power generation, wastewater treatment, and so on. Although it does not play a direct role in the paper manufacturing process, the power generation facility is critical for ensuring the continuous running of the pulp and paper plant. The power generation facility is comprised of units, each of which is composed of a boiler, a turbine, a generator, and auxiliary equipment, and each unit is traditionally controlled by an independent system. This paper presents an application of the Yokogawa CENTUM distributed control system that embodies integrated control as well as consolidated operation and monitoring of such a power generation facility, and also introduces implementation of new control methods required by these power facilities due to the diversification of fuel and reduction of global-warming gas emissions.