Gas-electric series-parallel ship hybrid power test bed with energy management system and control method of gas-electric series-parallel ship hybrid power test bed

Abstract

According to the pneumoelectric series-parallel ship hybrid power test bed with the energy management system and the control method thereof, an electric dynamometer is connected with a first gear through a first clutch and a first torque flange, and a motor is connected with a second gear through a second clutch and a second torque flange; the gas engine is connected with a third gear through a third clutch and a third torque flange, the generator is connected with a fourth gear through a fourth clutch and a fourth torque flange, the storage battery is connected with the test bed direct-current main network, and the external power source is connected with the test bed alternating-current auxiliary network and connected with the storage battery through a power transformation device. The generator and the motor are respectively connected with the test bench DC main network, and the electric dynamometer is connected with the test bench DC main network through the frequency converter. According to the invention, the gas machine and the motor can independently or cooperatively drive the electric dynamometer, so that the emission of pollution gas is greatly reduced. Meanwhile, monitoring control of each device of the test bed is realized, the controllability of the test bed is improved, and the investment cost is reduced.

Description

technical field [0001] The invention relates to a test bench and its control method, in particular to a ship power test bench and its control method. Background technique [0002] Electric propulsion, as the development trend of ship power in the future, has the advantages of high efficiency, cleanliness and reliability. However, the limitation of battery capacity leads to high manufacturing cost, long charging time, short battery life, and low redundancy, which are still difficult to meet the actual needs. Moreover, due to the influence of power generation methods, power density and energy storage technology, pure electric ships at this stage cannot achieve high-performance speed, acceleration and self-control, and their battery life is also restricted by their battery capacity. Provide continuous energy output, but the traditional power grid diesel generator sets have low power generation efficiency at a constant speed, and they are in low-load conditions for a long time,...

AI Technical Summary

Problems solved by technology

However, the limitation of battery capacity leads to high manufacturing cost, long charging time, short battery life, and low redundancy. It is still difficult to meet the actual needs at present.

Moreover, due to the influence of power generation methods, power density and energy storage technology, pure electric ships at this stage cannot achieve high-performance speed, acceleration and self-control, and their battery life is also restricted by their battery capacity. Provide continuous energy output, but the traditional power grid diesel generator sets have low power generation efficiency at a constant speed, and they are in low-load conditions for a long time, resulting in serious waste of fuel

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