Application | Sharing-NGI Empowers Fast Charging Testing in the Oil-Electric Parity Era

Oil-Electric Parity Era Begins, Fast Charging is Key

BYD recently unveiled its Super e Platform, featuring flash charging batteries, 30,000 rpm motors, and new SiC power chips. These upgrades enable a charging power of 1,000 kW,achieving a peak charging speed of 2 km per second.With a single motor power of 580 kW and a top speed exceeding 300 km/h, BYD is leading the next era of electric vehicles.

Key components enabling fast charging include high-power charging modules, charging cables, and SiC power modules. Below, we share NGI’s high-performance testing solutions for these critical components.

NGI Covers Full Industry Chain Testing from Components to Modules

Scenario 1: Charging Module Testing

Charging piles, typically comprising cascaded charging modules, deliver outputs from hundreds of kW to MW. Presently, each module can output 20 kW-60 kW at 150 V-1,000 V,with future voltages expected to reach 1,500 V or higher as charging power evolves.

To meet charging module testing needs, NGI's N35500 high performance bidirectional power supply and N69200 high power electronic load are ideal for performance and aging tests.

Scenario 2: Charging Cables and Connectors Testing

Fast-charging piles' charging current ranges from several hundred amperes to kiloamperes, demanding better performance of charging harnesses and connectors. NGI's harness temperature rise test system, based on in-house high-performance products, has:

1. High Power Density: 2U/1100A output, expandable to ten-thousands of amperes, saving 50% space.

2. High Stability:≤0.05% stability over 1000 hours, ensuring data reliability.

3. Flexible Software: Custom sequences, synchronized data collection and export for easy analysis.

Scenario 3: SiC Semiconductor Devices Testing

Power semiconductors(e.g., SiC, IGBT, MOSFET),which can rectify, invert, and adjust voltage, are used in charging modules and motor controllers. The automotive industry tests them to standards like AQG324. NGI's N36200 series DC power supply supports reliability tests including power cycling, HTRB, and HTGB.

1. Stability:24-hour current stability ≤ 0.01% (30-minuteready);zero overshoot in CC mode.

2. Low Ripple:< 0.1% rippleat 1,100 A usingmulti-phase interleaved technology.

3. Compact: 20 V/1,100 A/10 kW in 2U height and 19 inch width chassis; 1,500 V/1 A/1,000 W in 1U height and 19inch width; 50% space saving.

4. Interfaces:LAN/RS232/RS485/CAN;Modbus-RTU, SCPI, CANopen support;automated sequence testing.

NGI also offers precision source-measure units and multi-channel test supplies for semiconductor integration and precision testing.

EV Testing Solutions for the Entire Industry Chain

With years of expertise in EV testing, NGI has developed comprehensive EV testing solutions tailored to the needs of top industry clients. These solutions are widely used for testing various automotive components, including charging piles, onboard OBC, BMS, electrical boxes, headlights, and harnesses.

NGI's EV testing solutions are currently employed by leading global EV industry clients such asBYD, CATL, Mercedes-Benz, SAIC Motor, XPeng, Umicore, and Joyson.

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