OBC, DC/DC test system

With the development of electric vehicles in recent years, electric vehicle OBC & DCDC are moving towards digital deep integration. Small size, light weight, high power density, and all-in-one have become development trends. Combined with the categories of OBC products on the market, in terms of power level, there are single-phase products of 3.3kW and 6.6kW, and three-phase products of 11kW, 22kW and higher power; in terms of product integration, there are OBC & DCDC two-in-one, OBC & DCDC & PDU three-in-one and more integrated all-in-one products; in terms of functions, they have charging and discharging functions, V2G functions, V2L functions, and V2V functions. The above products have high requirements for product testing efficiency and testing performance.

Relying on years of accumulation of power electronics technology and experience in automated testing systems, Kewell has launched the OBC&DCDC testing system. The system is based on national standards and relies on AC feedback source load systems, high-voltage feedback DC source load systems, low-voltage feedback DC source load systems and other equipment, supplemented by flexible configuration and simple operation of the automatic testing system, to provide a complete solution for electric vehicle OBC&DCDC testing.

Kewell Optical OBC&DCDC test system is mainly used in:

● OBC&DCDC and other R&D tests

● OBC&DCDC and other factory tests

● OBC&DCDC and other certification tests

System composition

Reference Standards

Serial number	Standard/Document No.	Standard/File Name
1	GB/T 40432-2021	Conductive on-board charger for electric vehicles
2	GB/T 24347-2021	Electric vehicle DC/DC converter
3	GB/T 20234.1-2015	Connection devices for conductive charging of electric vehicles Part 1: General requirements
4	GB/T 20234.2-2015	Connection devices for conductive charging of electric vehicles Part 2: AC charging interface
5	GB/T 16935.1-2008	Insulation coordination for equipment in low voltage systems Part 1: Principles, requirements and tests
6	GB/T 31466-2015	Voltage levels of electric vehicle high voltage systems
7	GB/T 18487.1-2015	Electric vehicle conductive charging system Part 1: Power-on requirements
8	GB/T 27930-2015	Communication protocol between off-board conductive charger and battery management system of electric vehicle
9	QC/T 895-2011	Conductive on-board charger for electric vehicles

NOVATECH

Input Characteristic Experiments
Input voltage range, input frequency range, input three-phase AC voltage phase deviation, etc

NOVATECH

Inverter characteristic test

Rated voltage and rated frequency, voltage accuracy, frequency, load dynamic response, voltage waveform distortion, DC component, etc

NOVATECH

Functional Requirement Experiments

Startup input inrush current, DC output voltage limiting characteristics, DC output current limiting characteristics, DC output power limiting characteristics, DC output current error, output voltage ripple factor, startup output overshoot

NOVATECH

Inverter protection function

DC input over-voltage and under-voltage protection, AC output short-circuit protection, AC output over-current protection, etc

Contact: Bay Max
Phone: 136218783885
E-mail: max@novatech-js.com
Address: Science and Technology Innovation Park, Taicang Zhihui Valley, Suzhou City, Jiangsu Province

WeChat Public Number

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