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Modular charging fault isolation system and method for electric vehicle

A technology for fault isolation and electric vehicles, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve problems such as the failure of the entire system to achieve the effects of ensuring normal operation, solving failures to work, and improving reliability

Inactive Publication Date: 2018-11-23
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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Problems solved by technology

[0005] The embodiment of the present application provides a modular charging fault isolation system and method for electric vehicles, which is used to solve the technical problem that the whole system cannot work when some modules of the modular charger fail.

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  • Modular charging fault isolation system and method for electric vehicle
  • Modular charging fault isolation system and method for electric vehicle
  • Modular charging fault isolation system and method for electric vehicle

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0037] see figure 1 , an embodiment of a modular charging fault isolation system for electric vehicles provided in this application, including: a charging module, an input isolation unit 102, an output isolation unit 103, a fault monitor 104 and a charging controller 101;

[0038] The input terminal of the charging module is connected to an AC power supply through...

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Abstract

The invention provides a modular charging fault isolation system and method for an electric vehicle. The system comprises charging modules, an input isolation unit, an output isolation unit, a fault monitor and a charging controller, wherein input ends of the charging modules are connected with an AC power supply through the input isolation unit; output ends of the charging modules are connected with a DC bus through the output isolation unit; the fault monitor is connected to the DC bus and is used for monitoring the DC bus; and the charging controller is connected with the input isolation unit, the output isolation unit and the fault monitor and is used for monitoring whether a charger transmits a fault or not according to the fault monitor, detecting the charging modules through the fault monitor, the input isolation unit and the output isolation unit separately, detecting the failed charging modules and isolating the failed charging modules, thereby ensuring normal operation of thecharger, improving the reliability of the charger and solving the technical problem that the overall system cannot work when one part of modules fail in the modular charger.

Description

technical field [0001] The present application relates to the technical field of electric vehicle charging, and in particular to a modular charging fault isolation system and method for electric vehicles. Background technique [0002] With the development of fast charging technology, chargers for electric vehicles need to complete faster charging operations, so the output power requirements of chargers are getting higher and higher. [0003] In order to reduce the design difficulty of high-power chargers, modular design is generally adopted for high-power chargers at present, and the rapid development of chargers with different power levels is realized by means of module superposition. Module superposition refers to the parallel connection of multiple charging modules that can realize power output to increase the output power of the charger and develop a charger with a higher power level. [0004] However, as more and more modules are superimposed, the modular charger usual...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04B60L11/18
CPCH02J7/0071H02J7/027H02J7/042
Inventor 邓凯赵伟罗敏孟金岭易斌张弛王超
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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