Optimal control system and optimal control method for ship power supply and steam supply linkage system by utilizing waste heat of diesel generator

Abstract

The invention discloses an optimal control system and an optimal control method for a ship power supply and steam supply linkage system by utilizing waste heat of a diesel generator. The control system comprises a sensor, a combined heat and power generation controller, and a power generation amount PID controller of a steam turbine generator. The combined heat and power generation controller obtains steam heat supply requirements and power utilization requirements of a whole ship through sensors, calculates fuel consumption of the diesel generator and a fuel boiler, sends out a fuel control signal, and sends out a set value signal to the power generation amount PID controller of the steam turbine generator at the same time, therefore, the operation conditions of equipment such as a marinediesel generator, a fuel boiler, a waste gas boiler and a steam turbine generator are controlled, and the whole-ship steam heat supply requirement and power utilization requirement are met. Comparedwith the prior art, the optimal control system and the optimal control method have the advantages that the total fuel cost or the total CO2 emission value can be controlled to be lowest under the condition that steam heat supply and power supply of the whole ship are met, so that the purposes of reducing the operation cost or saving energy and reducing emission are achieved.

Description

technical field [0001] The invention relates to the fields of waste gas utilization of marine diesel generators and power generation of steam turbine generators, in particular to an optimized control system and control method for a ship power supply and steam supply linkage system utilizing waste heat from diesel generators. Background technique [0002] Large luxury cruise ships are one of the rapidly developing ship types in recent years. Due to the large tonnage, large number of personnel and many large-scale energy-consuming entertainment projects, this type of ship consumes a lot of energy. The huge energy consumption system makes the power supply system and steam system of this type of ship more complicated than ordinary ships. Ordinary ships are usually composed of diesel engines and boilers, and the ship's power supply system and steam system are usually independent of each other, but the power supply system and steam system of many large luxury ships usually consis...

AI Technical Summary

Problems solved by technology

During the voyage of a large luxury ship, when the load of the power supply system and steam system changes, the different control and management modes of the two systems will cause the two systems to consume different fuel consumption and lead to different total fuel costs, and produce different total CO 2 Total emissions, improper control and management modes may even cause energy waste such as excess steam

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