Engine-propeller matching control method of energy-saving ship adjustable propeller system

Abstract

The invention discloses an engine -propeller matching control method of an energy-saving ship adjustable propeller system and relates to the field of adjustable propellers. According to the engine-propeller matching control method of the energy-saving ship adjustable propeller system, by using fuel consumption of a main engine as a target value and sufficiently considering external load characteristic, universal characteristic and propeller efficiency characteristic of the main engine, engine-propeller matching operating condition points at different target navigational speeds are found by using a spectrum analysis and numerical analysis combined method; and therefore, it is can be guaranteed that a propulsion system can work in a lowest fuel consumption state; an energy-saving effect canbe realized in the case of guaranteeing the normal working of the adjustable propeller system; and compared with a traditional adjustable propeller control mode, the adjustable propeller system control method has the advantage that the fuel saving characteristic is extremely obvious.

Description

technical field [0001] The invention relates to the field of adjustable propellers, in particular to an energy-saving propeller matching control method for ship adjustable propeller systems. Background technique [0002] The controllable propeller system has been widely used in mainstream ships such as official ships, survey ships and cargo ships due to its technical reliability, stability in use and maintenance, and price advantages. The existing control methods of the controllable propeller system mainly include the following two types: [0003] 1. Independent control mode: The speed of the main engine and the pitch of the propeller are independently controlled through their respective control handles. The process control method is relatively simple, and the fuel consumption is high. [0004] 2. Traditional joint control method: when the ship speed is controlled within 50% of the rated speed, the speed of the main engine is stabilized near the combined speed of the gear bo...

AI Technical Summary

Problems solved by technology

The control method is relatively intelligent, but the current joint control method does not take the fuel consumption of the propulsion system as the target value, so the fuel consumption is often not low

[0005] It can be seen that the current control methods of the adjustable propeller system are not aimed at the fuel consumption of the propulsion system, and the propulsion system is the first driving force for ship navigation, and its fuel consumption accounts for the vast majority of ship fuel consumption. Under the international background of industry recession and natural energy shortage, it will be a major event that benefits the country and the people if the fuel consumption and air pollution can be reduced to the greatest extent.

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