Planning method of steady-state working line of intercooling cycle gas turbine

Abstract

The invention aims at providing a planning method of a steady-state working line of an intercooling cycle gas turbine. According to the requirements of a vessel for power at different task stages, theworking states of the intercooling cycle gas turbine are divided, and constraint conditions of the gas turbine under all the working states are determined; all balance working points of the intercooling cycle gas turbine are calculated through a variable working condition model; and a space convex polygon region is drawn according to the constraint conditions, a contour surface of optimization parameters is drawn in the space region, a map is drawn with the methods such as curve extraction, curved surface transverse movement and curved surface intersection, and the optimal steady-state working line is solved. As for the intercooling cycle gas turbine, the optimal steady-state working line can be planned within the range of all the balance points, capable of working, of the gas turbine under the condition of considering the task requirements of the vessel, and a control strategy of the intercooling cycle gas turbine can be formulated. The method has universality and also has referencesignificance for planning steady-state working lines of gas turbines in other cycle manners.

Description

technical field [0001] The invention relates to a gas turbine control method. Background technique [0002] As a power device, the marine gas turbine should provide continuous and reliable power support for the ship's full speed, economical speed, minimum speed, reversing and other task stages, so as to ensure the good maneuverability and endurance of the ship. For this reason, the power plant is required to have sufficient maximum power, good economy, high life and reliability, convenient maneuverability and maintainability. The above performance indicators are interrelated or contradictory. For example, in order to pursue the maximum output power, the gas turbine often has to bear the maximum mechanical load and thermal load, which will inevitably affect its life. When the gas turbine works in a small state, its thermal efficiency is often low. economical deterioration. For intercooled gas turbines that provide power for ships, considering the task requirements of ships,...

AI Technical Summary

Problems solved by technology

The above performance indicators are interrelated or contradictory. For example, in order to pursue the maximum output power, the gas turbine often has to bear the maximum mechanical load and thermal load, which will inevitably affect its life. When the gas turbine works in a small state, its thermal efficiency is often low. Economic deterioration

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