Energy management and control method of vehicle composite power supply
A technology of management control and composite power supply. It is applied in power management, battery/fuel cell control device, vehicle energy storage, etc. It can solve the problem of unreasonable distribution of power and energy of fuel cells and supercapacitors, and ensure energy and power requirements. , the effect of good dynamic performance
Active Publication Date: 2020-09-15
JIANGSU UNIV OF TECH
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Problems solved by technology
[0004] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a method for managing and controlling the energy of a vehicle-mounted composite power supply, which effectively solves the technical problem in the prior art that the power and energy between the fuel cell and the supercapacitor cannot be reasonably allocated
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[0019] 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.
[0020] Such as figure 1 Shown is a schematic flow chart of the management and control method of the vehicle-mounted composite power supply energy provided by the present invention. It can be seen from the figure that the management and control method includes:
[0021] S10 establishes the system working model according to the energy management and control system of the vehicle-mounted composite power supply;
[0022] Wherein, the vehicle-mounted composite power supply includes a fuel cell for providing energy and a supercapacitor for providing power; the managemen...
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The invention discloses a method for managing and controlling the energy of a vehicle-mounted composite power supply, comprising: S10 establishing a system working model according to the management and control system of the vehicle-mounted composite power supply; wherein, the vehicle-mounted composite power supply includes a fuel cell for providing energy and a fuel cell for providing A supercapacitor for power; the management control system includes a Boost converter connected in series with the fuel cell and a Buck-Boost converter connected in series with the supercapacitor; the Boost converter includes a first control switch, and the Buck-Boost converter includes The second control switch and the third control switch; S20 obtains the load current when the electric vehicle is running in real time; S30 controls the on-off of the first control switch, the second control switch and the third control switch according to the load current and the system working model, so as to realize the The management of the output energy on the side of the fuel cell and the management of the output power on the side of the supercapacitor.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a method for managing and controlling the energy of a vehicle-mounted composite power supply. Background technique [0002] The growing global concern for energy conservation and environmental protection has brought about the rise of electric vehicles. At present, many vehicles use fuel cells as the main energy source, which has the advantages of high power generation efficiency, low environmental pollution, high energy density, and low noise. However, in order to prevent fuel shortages and improve their performance and life, fuel cells must be limited The current change rate of the fuel cell brings the problem of slow dynamic response of the fuel cell. [0003] Using supercapacitors as auxiliary energy can well solve the technical problem of slow dynamic response of fuel cells. Although the two energy sources are combined, the advantages of both can be reflected in the compo...
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IPC IPC(8): B60L50/40B60L50/70B60L58/30B60L58/10
CPCY02T10/70Y02T10/72Y02T90/40
Inventor 王琪王烝韩晓新沃松林罗印升
Owner JIANGSU UNIV OF TECH