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Scheduling method of cluster type DC charging system of reconfigurable annular bus

A technology of DC charging and dispatching method, applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve complex problems and achieve the effect of reducing the number

Active Publication Date: 2018-01-19
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The essence of this structure is the same as the previous two structures, but it is still relatively complicated, and the order of magnitude of the contactor used is consistent with the previous two

Method used

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  • Scheduling method of cluster type DC charging system of reconfigurable annular bus
  • Scheduling method of cluster type DC charging system of reconfigurable annular bus
  • Scheduling method of cluster type DC charging system of reconfigurable annular bus

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] The dispatching method of the cluster type DC charging system of the reconfigurable ring bus of the present invention is applicable to places where vehicles need to be charged, such as DC charging stations, municipal parking lots, and underground garages in residential quarters.

[0041] The DC charging system of this embodiment includes an AC bus, a DC charging pile, an AC / DC charging module, a ring DC bus and a connection switch. The ring-shaped DC bus is composed of multiple connection switches. The connection switches divide the ring-shaped DC bus into multiple segment buses. Every segment bus between two connection switches is connected to an AC / DC charging module and an independent DC charging pile. Each independent DC charging pile corresponds to one charging parking space. In the initial state of the system, all connection s...

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Abstract

The invention relates to a scheduling method of a cluster type DC charging system of a reconfigurable annular bus, and belongs to the field of power and electron technologies and new energy automobilecharging infrastructures. The main application object of the scheduling method is a reconfigurable annular bus based cluster-type DC charging station; a vehicle entering the charging station is guided by the scheduling system so as to enter a reasonable parking space, so that the maximum advantage of the reconfigurable annular bus is played and efficient distribution of the charging power is realized. Meanwhile, when the concurrent charging number is big and the DC charging demands of all the connected electric vehicles cannot be met, the scheduling method automatically adjusts and reconstructs a bus section which is composed of multiple segmental buses based on the priority by adopting a translation reconfiguration algorithm, realizes optimal combination of charging modules and optimal power distribution. The scheduling scheme is combined with the reconfigurable annular bus; and compared with the existing technologies such as charging pile and flexible charge, the scheduling method can greatly reduce the number of linked switches and the system complexity.

Description

technical field [0001] The invention relates to the fields of power electronics technology and charging infrastructure for new energy vehicles, in particular to a scheduling method for a clustered DC charging system with a reconfigurable ring bus. Background technique [0002] The rapid development of electric vehicles has brought about the demand for the construction of charging facilities. In order to meet the needs of vehicles to quickly replenish energy and increase battery life, high-power DC charging piles are currently a rapidly developing industry. [0003] The charging power output of current DC fast charging piles is mostly composed of multiple AC / DC modules connected in parallel, and its power is fixed. The majority of 15kW AC / DC modules are on the market. However, the maximum charging power of various electric vehicles is different, ranging from tens of kilowatts to hundreds of kilowatts. If a small-capacity DC charging pile is built, it will not be able to mee...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/04
Inventor 李鹏程丛中笑应丽云封芸徐宏伟
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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