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Demand response-oriented charging pile load intelligent regulation and control method and system

A demand response, charging pile technology, applied in power network operating system integration, AC network voltage adjustment, information technology support systems, etc., can solve problems such as adjusting charging pile feeders, solve overload problems, improve load balance, control high precision effect

Pending Publication Date: 2022-03-18
GUANGZHOU POWER ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defect of the above-mentioned prior art that the feeder connected to the charging pile cannot be adjusted according to the real-time change of the feeder load under the dual power supply mode, the present invention provides a demand-response-oriented intelligent charging pile load control method and system

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  • Demand response-oriented charging pile load intelligent regulation and control method and system
  • Demand response-oriented charging pile load intelligent regulation and control method and system
  • Demand response-oriented charging pile load intelligent regulation and control method and system

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Experimental program
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Effect test

Embodiment 1

[0074] This embodiment proposes a demand response-oriented intelligent load control method for charging piles, including the following steps:

[0075] S1: Construct the switching scheme of the charging pile load of the charging station. The switching scheme of the charging pile load of the charging station is specifically as follows:

[0076] Each charging pile in the charging station is respectively connected with at least two DPS switches, and each of the DPS switches is respectively connected to a different special transformer, and the different special transformers are respectively connected to different feeders;

[0077] Under normal operation, the charging pile of the charging station is divided into two parts, respectively connected to two feeders; for a charging pile, the feeder connected under normal operation is called the common feeder of the charging pile, and the other feeders are called the charging pile. Under normal operation, for a charging pile, the DPS swit...

Embodiment 2

[0085] This embodiment proposes a demand response-oriented intelligent load control method for charging piles, including the following steps:

[0086] S1: Construct the switching scheme of the charging pile load of the charging station.

[0087] S2: Determine the peak-shaving demand of the grid and the peak-shaving potential of the charging station according to the load of the feeder of the charging pile, the transfer capacity of the feeder and the switching capacity of the charging pile Peak potential determines the peak shaving task of the charging station:

[0088] S2.1: The distribution network dispatching center determines the peak-shaving demand of the power grid according to the total load and load rate of the feeder connected to the charging station. During the peak-shaving period, the feeder that requires peak-shaving is recorded as the feeder that needs to be transferred, and the feeder that does not require peak-shaving is recorded as the feeder that can be transfe...

Embodiment 3

[0131] This embodiment also proposes a demand-response-oriented intelligent charging pile load evaluation method, which is applied to the demand-response-oriented charging pile load intelligent control method proposed in the above-mentioned embodiment 2, specifically including:

[0132] Calculate the peak-shaving effect of the feeder according to the peak-shaving rate of the feeder of the charging pile in the charging station, and evaluate the current charging pile load according to the peak-shaving effect of the feeder, wherein:

[0133] Define the reduction degree of the maximum load rate of the feeder after optimization relative to the maximum load rate of the feeder before optimization as the peak clipping rate of the feeder, then the peak clipping rate η of the feeder needs to be transferred wf The calculation formula of is as follows:

[0134]

[0135] Among them, λ wm_q Indicates the maximum load rate of the feeder before optimization, λ wm_h Indicates the maximum ...

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Abstract

The invention provides a demand response-oriented charging pile load intelligent regulation and control method and system. The method comprises the steps of constructing a charging pile load switching scheme of a charging station; according to the feeder load condition of the charging pile, the feeder transfer capacity and the switching capacity of the charging pile load, determining the peak clipping demand quantity of the power grid, the peak clipping potential of the charging station and the peak clipping task of the charging station; based on a peak clipping task of the charging station, compensation obtained by participation of the charging station in demand response is calculated, and according to a compensation condition obtained by the demand response, a switching scheme of a charging pile load is optimized, the state of a DPS switch is changed, and intelligent regulation and control of the charging pile load are realized. The problem that the feeder connected to the charging pile cannot be adjusted according to the real-time change of the feeder load in a dual-power supply mode is solved.

Description

technical field [0001] The present invention relates to the field of charging management, and more specifically, to a method and system for intelligent regulation and control of charging pile loads oriented to demand response. Background technique [0002] Driven by the increasing demand for carbon emission reduction and environmental protection, the rapid development of electric vehicles has led to frequent occurrence of overload problems in the single-feeder connection of charging piles in medium and large charging stations used to charge electric vehicles. At present, in terms of load control, charging stations mainly adopt measures such as electricity price-guided orderly charging and incentive-compensated demand response to solve the overload problem. The essence is to change the charging behavior of electric vehicle users and the power of charging piles. The charging and travel needs on the user side have a greater impact. [0003] There is a power supply and distribu...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J3/14
CPCH02J3/322H02J3/144H02J2203/10Y02B70/3225Y04S20/222
Inventor 黄春艳杨景旭廖美英荆杰江浩侠何奉禄李桂昌刘轩
Owner GUANGZHOU POWER ELECTRICAL TECH CO LTD
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