Testing method of electric vehicle charging equipment

Abstract

The invention discloses a testing method of electric vehicle charging equipment, belonging to the field of new energy technology. A testing system is used to test the performance indexes of the electric vehicle charging equipment such as a communication function, voltage stabilizing precision, current stabilizing precision, a ripple factor, a power factor, efficiency, current harmonic wave of an input point of equipment to be tested, voltage harmonic wave of the input point of the equipment to be tested, and a three-phase unbalance degree. The system is formed by a central control unit, a protection control unit, a high precision measurement unit, a voltage and frequency controlled power supply unit and a load unit. A test object is an electric vehicle vehicle-borne charger and a non vehicle-borne charger. According to the method, complex functional decomposition, virtual battery management system technology and whole process automation idea are combined, the method is used for carrying out rapid and comprehensive testing on the electric vehicle charging equipment, the testing workload is greatly reduced, and the testing efficiency is raised.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a test method for electric vehicle charging equipment. Background technique [0002] Faced with the strong development momentum of electric vehicles, the demand for charging equipment for electric vehicles, an indispensable part of the development of electric vehicles, will also continue to increase. On the one hand, the performance of the charging equipment has a great impact on the performance of the power battery, charging safety, charging cost and the power quality of the grid. Therefore, considering the above factors, the performance requirements for the charging equipment are relatively high. high. On the other hand, currently used electric vehicle charging equipment mainly includes: on-board chargers and off-board chargers, on-board chargers are generally low-power charging equipment with single-phase power supply, and off-board chargers are generally high-...

AI Technical Summary

Problems solved by technology

On the other hand, currently used electric vehicle charging equipment mainly includes: on-board chargers and off-board chargers, on-board chargers are generally low-power charging equipment with single-phase power supply, and off-board chargers are generally high-power chargers with three-phase power supply Equipment, the types and parameters of electric vehicle charging equipment are not uniform

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