Non-vehicle-mounted charger electric energy verification method

Abstract

The invention discloses a non-vehicle-mounted charger electric energy verification method, and belongs to the technical field of non-vehicle-mounted charger electric energy verification. An existing verification scheme is low in verification efficiency and cannot support and meet the construction requirement and the period verification requirement of a non-vehicle-mounted charger which is continuously increased in the future. The non-vehicle-mounted charger electric energy verification method comprises the following steps: 1, assembling a verification gun seat connected with internal voltage and current circuits of a direct-current electric energy meter in an off-board charger; forming a power supply loop by a circuit of the verification gun base and an internal circuit of the direct-current electric energy meter; and 2, carrying out verification through a virtual load method. A verification gun base connected with internal voltage and current circuits of a direct-current electric energy meter in an off-board charger is arranged. A circuit of the verification gun base and an internal circuit of the direct-current electric energy meter form a power supply loop, and virtual load verification conditions are met; and virtual load verification without pile opening is realized, the verification efficiency is high, and the verification cost is low.

Description

technical field [0001] The invention relates to an electric energy verification method of an off-vehicle charger, belonging to the technical field of electric energy verification of an off-vehicle charger. Background technique [0002] Affected by the structural design of off-board chargers, the existing compulsory verification of off-board chargers only supports the real-load verification method. The principle is to insert an on-site calibrator between the off-board charger and the electric vehicle (or simulate the load of the electric vehicle) (that is, the standard electric energy meter), compare the electric energy of the standard electric energy meter and the DC electric energy meter in the non-vehicle charger, and use the electric energy value measured by the standard electric energy meter to determine whether the measurement of the charging equipment is accurate. [0003] However, the actual load verification uses the load box to simulate the charging of electric vehi...

AI Technical Summary

Problems solved by technology

[0003] However, the actual load verification uses the load box to simulate the charging of electric vehicles. The verification process consumes a lot of energy, the load box is large in size and mass, and it is inconvenient to transport. The cost of manpower and material resources is high, and the verification efficiency is low, which cannot support and meet the continuous growth in the future. Construction requirements and periodic verification requirements of off-board chargers

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