Hybrid electric vehicle composite power supply for self-adapting filter power dividing control and self-adapting filter power dividing control method
An adaptive filter and hybrid electric vehicle technology, applied in the field of energy storage devices, can solve the problems that the battery is difficult to meet the high power density requirements of the load, fully recover the energy, limit the rapid development of HEV, and the specific power of the energy storage system is low, so as to reduce the The number of cycles of charge and discharge, high power density, and good control effect
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[0017] The present invention will be further described below in conjunction with the drawings and embodiments.
[0018] The structure of the hybrid electric vehicle composite power supply controlled by the adaptive filter power split of the present invention is as follows figure 1 Shown, including batteries, super capacitors and DC / DC converters. The battery has a large specific energy, so it is directly connected to the power bus as the main power source to provide the average power of the load power; because the supercapacitor has a large specific power, it is connected to the power bus through a DC / DC converter and is connected to the DC-DC The converter is connected in series to form an auxiliary power supply, which mainly provides peak power in the load power. The advantage of this structure is that the battery determines the bus voltage and directly outputs power, which has high energy conversion efficiency; while the super capacitor automatically adjusts its own voltage th...
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