Regional charging station control device with new energy power generation

Abstract

The invention provides a regional charging station control device with new energy power generation. The control device comprises a parameter collecting and processing unit for collecting and calculating voltage and current signal on the output side of the regional transformer when used and correspondingly emitting signals, a harmonic compensation unit for performing current compensation on a regional power grid corresponding to the received detection signal sent by a parameter acquisition unit, a charging station countercurrent control unit that controls whether the new energy generating device transmits power to the regional power grid according to a control signal sent by the parameter acquisition unit, and a charging power control unit correspondingly controlling the charging power of acharging station according to the control signal sent by the parameter acquisition unit. The device can effectively solve the harmonic pollution of the regional power grid by the regional charging station with new energy power generation, the reverse power supply of the new energy power generation device to the regional power grid, and the extreme situation that the regional transformer overloadcauses tripping outage which endangers regional power supply.

Description

technical field [0001] The invention relates to the field of charging control devices, in particular to a control device for controlling a regional charging station containing new energy power generation. Background technique [0002] At present, the application of electric vehicles has been highly valued by all walks of life, especially the vigorous promotion of government departments. However, due to the delay in the construction of electric vehicle charging facilities and the inconvenience of charging and the current mileage of electric vehicles, electric vehicles in my country are currently mainly used in electric buses or group vehicles. There are a large number of charging piles in the station. This type of internal charging station can be called a regional charging station. It is usually equipped with new energy generation devices such as solar energy installed at the rear end of the regional transformer for grid-connected power generation to save electricity. This ki...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a control device for a regional charging station with new energy generation, aiming to solve the problem of harmonic pollution to the regional power grid caused by the operation of the regional charging station with new energy generation, and the use of new energy when the charging station is at a low point The power generation is reversed to the regional power grid, and in extreme cases, the overload of the regional transformer causes a trip and blackout, which poses a threat to the regional power supply.

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