| The development of the electric vehicle industry is an important deployment of the national energy strategy,a strategic pivot to promote the diversification of the automobile industry in China,and also an important measure to promote the development of low carbon energy conservation in the city.And vigorously promoting the construction of charging facilities is an important guarantee for the development of electric vehicles.However,due to the lack of accurate and reliable electric energy measurement and measurement devices,the current charging facilities are all missing in the whole life process,and the accuracy is not judged,resulting in the trade of electric vehicles in direct current power trade.There are many problems in the settlement.At the same time,because the electric vehicle is charged in the charging process,it is easy to produce a large number of waveform distortion,low power factor and so on.It has great influence on the accuracy of electric energy measurement and caused a certain hidden danger to the safe operation of the power network.This topic is aimed at the electromagnetic interference,the measurement precision of the induction influence between various channels of the multichannel AC charging pile,the lack of DC power metering technology and the standard device,the lack of testing methods and means for the overall performance of the DC charging equipment,and the simulation platform of the electric vehicle micro network charging is used to simulate the micro network effectively.The effect of the two modes of electric vehicle fast charging and slow charging on the charge power and the quality of the electric energy;and developing the high precision measurement performance test device and the field measuring and detecting device for the DC charging equipment of the electric vehicle to realize the accurate measurement of the electric energy of the DC charging equipment of the electric vehicle,and meet the measurement requirement of the DC charging equipment. |
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