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Interleaved Boost circuit software control method and system

A software control and circuit technology, applied in control/regulation systems, battery/fuel cell control devices, electrical components, etc., can solve problems such as output voltage oscillation, DCDC module heating, DCDC module damage, etc., to ensure safety.

Active Publication Date: 2021-10-08
SHENZHEN LANDE AUTOMOBILE POWER SUPPLY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method and system for interleaved parallel Boost circuit software control, to solve the problem that when multiple DCDC modules are interleaved and parallel connected in parallel, the DCDC module generates heat due to the uneven current between the DCDC modules, and the output The voltage fluctuates, and the DCDC module is prone to damage

Method used

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  • Interleaved Boost circuit software control method and system
  • Interleaved Boost circuit software control method and system
  • Interleaved Boost circuit software control method and system

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Embodiment 1

[0045] like figure 1 As shown, the present invention provides a software control method for an interleaved parallel Boost circuit,

[0046] (1) Initialize the parallel output host DCDC controller and multiple slave DCDC controllers, and perform CAN communication between the host DCDC controller and slave DCDC controllers after successful initialization to realize real-time information transmission. The vehicle control module obtains the information of the lithium battery in real time. When the lithium battery needs to be charged, the vehicle control module generates a work order and sends the work order to the hydrogen fuel cell stack and the host DCDC controller. After the hydrogen fuel cell stack receives the work order, it performs a self-inspection. If the self-inspection is successful, it generates a preparation work order and sends the preparation work order to the vehicle control module; after the host DCDC controller receives the work order, it confirms that the host D...

Embodiment 2

[0057] like figure 2 and 3 As shown, the present invention also provides an interleaved parallel Boost circuit software control system, including a hydrogen fuel cell stack, a vehicle control module, a lithium battery, a master DCDC module and multiple slave DCDC modules. The vehicle control module is electrically connected to the host DCDC module, the hydrogen fuel cell stack and the lithium battery through the Boost circuit, and the host DCDC module and multiple slave DCDC modules are connected in parallel between the hydrogen fuel cell stack and the lithium battery.

[0058] The host DCDC module includes a host DCDC controller, a host DCDC converter, and a host DCDC temperature module, and the slave DCDC module includes a slave DCDC controller, a slave DCDC converter, and a slave DCDC temperature module.

[0059] The host DCDC controller is electrically connected to the vehicle control module; the hydrogen fuel cell stack is electrically connected to the host DCDC control...

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Abstract

The invention relates to an interleaving Boost circuit software control method and system. The method comprises the following steps that a host DCDC controller and a plurality of slave DCDC controllers which are output in parallel are initialized, CAN communication is carried out between the host DCDC controller and the slave DCDC controllers which are successfully initialized, a hydrogen fuel cell stack starts to work, and a host DCDC converter and a slave DCDC converter are powered on and start to work to charge a lithium battery. The host DCDC controller receives charging parameters of the whole vehicle control module and reads electrical parameters of the host DCDC module and the slave DCDC module. The host DCDC controller adjusts the output voltage, the input current and the temperature of the host DCDC module and the slave DCDC module according to the read electrical parameters, and meanwhile, the host DCDC controller judges the damage fault information of the DCDC modules in real time and performs current sharing setting on the host DCDC module and the slave DCDC modules. According to the invention, the problems of non-uniform current caused by hardware difference between the DCDC modules and uncontrollability of the battery stack after the DCDC modules are damaged can be avoided.

Description

technical field [0001] The invention relates to the field of new energy technologies, in particular to a software control method and system for an interleaved parallel Boost circuit. Background technique [0002] As the largest country in energy consumption, my country's current energy structure is mainly due to the lack of domestic fossil fuel resources and limited oil production. Therefore, it needs to rely on a large amount of oil imports every year to meet the energy needs of daily industrial production and life. Petroleum, as a fossil fuel, has been unable to meet the growing demand for energy from global economic development after long-term development and utilization by human beings. Compared with the scarcity of fossil fuels, my country's power resources are relatively rich. Therefore, the development of new energy industries is a trend in my country's future industrial development. With the rapid development of new energy technology, electric vehicles have become a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02M1/32H02J7/00B60L58/30B60L58/10
CPCH02M3/1584H02M1/32H02J7/00047B60L58/30B60L58/10Y04S30/12Y02T10/70Y02T90/40Y02T90/167
Inventor 石画
Owner SHENZHEN LANDE AUTOMOBILE POWER SUPPLY TECHCO
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