Flexible charging optimization method sufficiently using electric vehicle off-board charger

An electric vehicle and optimization method technology, applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of increased logic complexity and high cost of power distribution gear output bus software, and achieve cost savings and high compatibility. , the effect of a wide range of applications

Active Publication Date: 2017-06-13
ZHEJIANG WANMA NEW ENERGY
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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 solve the problem that the above-mentioned existing flexible charging method for off-vehicle chargers adopts module grouping radial power distribution. This kind of solution has low requirements on devices and simple hierarchical structure; The problem that too many output buses will increase the complexity of software logic provides a flexible charging optimization method for fully applying electric vehicle off-board chargers

Method used

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  • Flexible charging optimization method sufficiently using electric vehicle off-board charger
  • Flexible charging optimization method sufficiently using electric vehicle off-board charger
  • Flexible charging optimization method sufficiently using electric vehicle off-board charger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A flexible charging optimization method that fully applies the off-board charger of electric vehicles (see attached figure 2 To attach Figure 5 ), including the following steps:

[0030] Step 1: Establish a ring network form to connect the AC-DC conversion modules as required. Control switches are arranged between the AC-DC conversion modules, and each AC-DC conversion module corresponds to a charging interface and a demand data reader. The control terminal of the control switch is connected to the main charging controller, and the demand data reader is also connected to the main charging controller; the first AC-DC conversion module and the last AC-DC conversion module are equipped with control switch.

[0031] Control switches are arranged between the adjacent AC-DC conversion modules.

[0032] Step 2: The main charging controller judges the working status and working quantity of the current AC-DC conversion module according to the working status of the charging ...

Embodiment 2

[0039] This embodiment is basically the same as Embodiment 1, the difference is:

[0040] In the first step, each charging interface is equipped with a control switch for locking, the control end of the control switch for locking is connected to the main charging controller, and the control switch for locking is normally closed.

[0041] In said step 4, the control switch for locking corresponding to the idle AC-DC conversion module in the working state is turned off, and the charging interface corresponding to the control switch for locking stops charging until step 7, leading to the working state The control switch for locking corresponding to the idle AC-DC conversion module is closed and turned on again. Example 3:

Embodiment 3

[0042] This embodiment is basically the same as Embodiment 1, the difference is:

[0043] A control switch is arranged between any of the AC-DC conversion modules (see attached Figure 6 And attached Figure 7 ).

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Abstract

The invention relates to a flexible charging optimization method sufficiently using an electric vehicle off-board charger, which solves shortcomings in the prior art. The technical scheme is that an annular network form is established according to needs to connect alternating current-direct current conversion modules; control switches are arranged between the alternating current-direct current conversion modules; the alternating current-direct current conversion modules all correspond to charging interfaces and demand data readers; control ends of the control switches are connected with a charging main controller; and the demand data readers are also connected with the charging main controller. The charging main controller judges working states and working number of the current alternating current-direct current conversion modules according to working states of the charging interfaces; if data input by the demand data reader in the current working charging interface is larger than output power of the alternating current-direct current conversion module, the charging main controller executes the step 4; and if the data input by the demand data reader in the current working charging interface is less than or equal to the output power of the alternating current-direct current conversion module, the charging main controller executes the follow-up steps.

Description

technical field [0001] The invention relates to a flexible charging optimization method, in particular to a flexible charging optimization method that fully utilizes an off-vehicle charger of an electric vehicle. Background technique [0002] In an environment where fossil fuels are increasingly tense, electric vehicles have advantages that traditional vehicles cannot match in terms of energy saving and emission reduction, curbing the greenhouse effect, and ensuring national energy security, so they have received widespread attention from various aspects. Its related supporting industries are developing day by day. Due to the maturity and advancement of related technologies, electric vehicles are used in various fields. The wide range of applications results in a large gap in the power of electric vehicles, and users are selective when matching non-vehicle chargers. Difficulties: High cost of high-power off-board chargers for low-power electric vehicles, low utilization rate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCB60L53/60B60L53/64Y02T10/70Y02T10/7072Y02T10/72Y02T90/12Y02T90/16
Inventor 何若虚赵焱
Owner ZHEJIANG WANMA NEW ENERGY
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