Power Balance Control Strategy of Series Hybrid Tracked Vehicle under Rapid Acceleration

doi:10.3969/j.issn.1000-1093.2021.10.013

Abstract

Abstract: The power balance of front and rear power chains of series hybrid tracked vehicle has a great influence on the dynamic performance of the vehicle. For the problem that the DC bus voltage of the system is pulled down to affect the dynamic performance of the vehicle during rapid acceleration，the power balance control strategy of series hybrid tracked vehicle under the condition of rapid acceleration is studied. Based on the system fluctuation under different driving motor external characteristics，and the vehicle driving power demand and engine-generator response characteristics，a power balance control strategy for that engine-generator makes the voltage stable and DC/DC-battery provides the power compensation is proposed and verified by simulation. The results show that the strategy can balance the powers of the front and rear power chainsduring rapid acceleration，and the DC bus voltage fluctuation range is -4.6%-2.36%，which can maintain the system stability well.

Key words: trackedvehicle, serieshybridpower, rapidacceleration, powerbalance, controlstrategy

CLC Number:

TJ810.2

GAI Jiangtao， SHENG Hui， ZHOU Guangming， LIU Lifang. Power Balance Control Strategy of Series Hybrid Tracked Vehicle under Rapid Acceleration[J]. Acta Armamentarii, 2021, 42(10): 2180-2188.

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