EV Engineering News

NH Research raises the voltage of its battery test systems

NH Research

NH Research has released a higher-voltage, higher-power version of its single-channel 9210 series battery test system. The 9210 Series provided a 12 kW power module operating at 40, 120 or 600 Volts, which allowed paralleling with similar systems to increase the power. The new 9300 system provides a 100 kW power module with a software-selectable high-voltage range (1,200 VDC/167 A) and high-current range (600 VDC/333 A), which is designed to allow efficient testing of single- and double-voltage EV batteries, as well as high-voltage stationary storage systems used in grid-tied applications. The 9300 modules may be paralleled for even higher power levels, up to 1.2 MW.

Like NH’s 9200 and 9210 systems, the 9300 modules are independent, allowing for testing of multiple batteries, each with a different test plan, power levels and start/stop times.

The standard 9300 system is outfitted with an internal controller, system software and touch panel for manual control. Through this interface the operator can create UUT profiles without writing any code. For complex test programs and tests that require additional data acquisition hardware, users can employ NH Research’s Enerchron test sequencer software, or their own custom LabVIEW or Python applications, using the supplied drivers.

The system has a regenerative function, which returns more than 90 percent of the energy removed from a battery as usable AC power. Regeneration lowers the total utility consumption of a testing facility and reduces the amount of waste heat generated, providing a cooler work environment, reducing air conditioning loads and eliminating the need for water-cooling systems. According to NH, the cost savings from using regeneration typically provides a return on investment within 1-2 years.


Source: NH Research


EV Engineering Webinars & Whitepapers

EV Tech Explained