New energy automobile power supply system and distribution method

Abstract

The invention provides a new energy automobile power supply system and a distribution method, and relates to the technical field of new energy. The system comprises a three-phase PWM bidirectional rectification unit, a first dual-active-bridge DC / DC conversion unit, a second dual-active-bridge DC / DC conversion unit, a third dual-active-bridge DC / DC conversion unit, a BOOST conversion unit, a new energy input interface, a super capacitor, an electric automobile generator, a 220V AC voltage output power strip and a 12V DC voltage output power strip. An energy distribution system strategy in power distribution of the automobile-mounted energy router can adjust the SOC of a capacitor and the SOC of a lithium battery in real time through a multi-feedback loop according to surplus and notch distributed by a multi-target algorithm so that the SOC of the capacitor and the SOC of the lithium battery are kept approximately equal as far as possible, the cruising ability is prolonged, and the service life of the automobile-mounted lithium battery is prolonged too; and according to the SOC of the two power supplies, a part of input of new energy can be controlled and shielded to perform overcharge protection on the power supplies.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a new energy vehicle power supply system and distribution method. Background technique [0002] With the country's admiration of clean energy and strong support for non-polluting and sustainable new energy, the rise of electric vehicles has become inevitable. Electric vehicles are gradually replacing traditional fuel vehicles. Insufficient capacity, access to new energy to increase battery life is a solution, but because earlier electric vehicles cannot achieve reasonable energy distribution in the combination of new energy and electric vehicle lithium batteries, the utilization rate of energy is not high. [0003] The concept of energy router was first proposed and successfully used in the energy Internet. In the energy Internet, the energy router is a general-purpose access with computing, communication, precise control, remote coordination, autonomy, and plug-and-play inte...

AI Technical Summary

Problems solved by technology

[0004] Multi-objective programming provides a solution for the power distribution of vehicle energy routers. It is often difficult to judge the quality of a solution with one indicator, but it needs to be compared with multiple objectives, and these objectives are sometimes inconsistent or even incompatible. Paradoxically, the multi-objective algorithm can take these problems into consideration at the same time. The disadvantage of the multi-objective algorithm is that there is no satisfactory definition of the optimal solution of the multi-objective algorithm, and the multi-objective programming is still in a state of continuous development. middle

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