Direct-current charging pile detection system and detection method

Abstract

The invention relates to a direct-current charging pile detection system comprising a direct-current simulator, a simulation charging process testing load, a charging pile on-load capacity testing load, a simulated power source, an oscillograph and a signal gating device. The direct-current simulator consists of an analog-digital converter, a digital circuit processing module and a detection system interface matching a tested direct-current charging pile interface. According to the invention, the input and output current and voltage signals can be detected and analyzed; and the charge controlcompatibility detection of the charging pile body and charging communication compatibility detection can be realized. The control compatibility tests include a pile body control guidance parameter test, a normal charging process test, and a simulated storage battery fault test; and the communication compatibility test includes communication testing of a direct-current charging pile handshake stage, a configuration stage, a charging stage, and an ending stage. The direct-current charging pile performance indexes can be detected comprehensively and thus the direct-current charging pile can workreliably.

Description

technical field [0001] The invention relates to the technical field of electrical detection, in particular to a DC charging pile detection system and detection method. Background technique [0002] The construction of charging infrastructure is one of the key factors affecting the promotion of new energy vehicles in my country. The country adopts a moderately advanced construction strategy for pile stations. The National Development and Reform Commission's "Guidelines for the Development of Electric Vehicle Charging Infrastructure (2015-2020)" shows that the goal of my country's charging infrastructure development is "by 2020, 12,000 centralized charging and swapping stations and 4.8 million decentralized charging piles will be built." In order to ensure the reliable operation of DC charging piles, it is necessary to test the DC charging piles before and after they are put into operation. Existing detection systems or devices can only detect part of the electrical performan...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a DC charging pile detection system and detection method for the problems existing in the prior art. There are few detection indicators of the detection system or device, which cannot fully reflect the charging performance of the charging pile, and cannot guarantee the safe operation of the charging pile, which effectively improves the reliability of the charging pile

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