The invention provides a hybrid power ship mode switching control strategy. According to the mode switching control strategy, firstly, a hybrid power operation mode is divided into four modes of motor independent propulsion, gas machine independent propulsion, gas machine and motor combined propulsion and charging propulsion. The strategy is mainly characterized by comprising the following steps: firstly, calculating the total torque demand required by the ship during operation, and formulating a mode switching control rule by taking optimization of the operation efficiency of a gas engine as a principle according to the operation demand torque and the value of the SOC of a power battery; and when the operation condition of the hybrid power system changes and the mode switching condition is met, the hybrid power assembly controller coordinates all parts of the power system to be switched to the target mode. The target mode of the hybrid power system when the operation condition is changed is formulated according to the ship operation demand torque and the power battery, the system operation efficiency is improved, fuel oil is saved, the operation performance of the hybrid power ship is improved, and the service life of the power battery is prolonged.
本发明提供一种混合动力船舶模式切换控制策略,该模式切换控制策略首先将混合动力运行模式分为电动机单独推进,气体机单独推进,气体机和电动机联合推进以及充电推进四种模式。该策略的主要特征为:首先,计算出船舶运行时所需的总的转矩需求,根据运行需求转矩和动力电池SOC的值,以优化气体机运行效率为原则制定模式切换控制规则。当混合动力系统运行状况发生变化,满足模式切换条件时,混合动力总成控制器协调动力系统各部件向目标模式进行切换。本发明根据船舶运行需求转矩和动力电池制定混合动力系统在运行状况改变时的目标模式,有利于提高系统运行效率、节省燃油、改善混合动力船舶的运行性能、延长动力电池的使用寿命。
Ship gas-electric hybrid power mode switching coordination control strategy
一种船舶气电混合动力模式切换协调控制策略
2021-07-06
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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