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Vehicle-mounted composite power supply power distribution optimization method

A compound power supply and distribution optimization technology, applied in electric vehicles, vehicle energy storage, vehicle components, etc., can solve the problem that the power of batteries and supercapacitors cannot be reasonably allocated

Active Publication Date: 2019-06-04
JIANGSU UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a power distribution optimization method for a vehicle-mounted composite power supply, which effectively solves the technical problem that the power between the storage battery and the supercapacitor in the prior art composite power supply cannot be reasonably distributed

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  • Vehicle-mounted composite power supply power distribution optimization method

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Embodiment Construction

[0020] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be further described below in conjunction with the accompanying drawings. Of course, the present invention is not limited to this specific embodiment, and general replacements known to those skilled in the art are also covered within the protection scope of the present invention.

[0021] The present invention provides a method for optimizing power distribution of a vehicle-mounted composite power supply. Specifically, the composite power supply includes a storage battery for providing energy and a supercapacitor for providing power. The power distribution method includes:

[0022] S100 obtains the state of charge of the storage battery and supercapacitor in real time, and the required power of the load during the operation of the electric vehicle;

[0023] S200 determines the value range of the weighting factors of battery power and supercap...

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Abstract

The invention discloses a vehicle-mounted composite power supply power distribution optimization method. The method comprises the following steps: acquiring the states of charge of a storage battery and a supercapacitor and the required power of a load of an electric vehicle in the running process in real time; determining a value range of a weighting factor of the storage battery power and the supercapacitor power in the power distribution process according to a multiple reasoning rule; establishing a target function, and setting constraint conditions; searching a search space formed by the value range by adopting a double chaotic algorithm to obtain an initial value of the weighting factor; adopting a harmony optimization algorithm to obtain an optimal solution of the weighting factor inthe value range; determining the power required to be provided by the storage battery and the supercapacitor in the current running state; judging whether energy loss exists in the storage battery orthe supercapacitor or not, and if yes, conducting energy exchange according to an energy sharing mechanism, so that the composite power supply can meet the dual requirements of the electric vehicle for energy and power.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an optimization method for power distribution of a vehicle-mounted composite power supply. Background technique [0002] In recent years, with the continuous advancement of power electronics technology and microprocessor technology, the research and application of electric vehicles are increasing. The power supply formed by single energy storage devices such as batteries, supercapacitors, flywheels and solar cells can no longer meet the needs of electric vehicles. For the dual demands of energy and power, combining multiple energy storage devices to form a composite power supply is a feasible and versatile solution. [0003] At present, the battery-supercapacitor composite power supply is favored by scholars at home and abroad. Among them, the battery is used to provide the high energy density required by the vehicle, and the supercapacitor is used to provide the high power den...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/40B60L50/60B60L58/12
CPCY02T10/70
Inventor 王琪韩晓新诸一琦罗印升
Owner JIANGSU UNIV OF TECH
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