Large-size Secondary Battery Charge/Discharge Testing Systems

Customized Power Supply Systems

Large-size Secondary Battery Charge/Discharge Testing Systems

This system is used for battery charge/discharge testing and evaluation for the characteristics and lifetime tests of the secondary battery such as nickel hydrogen battery. In combination with the charger/discharger and instrumentation system, this testing system supports development of batteries and their applied products which are continuously improved..

High Voltage, Large Capacity, High Performance

Combined use of high-performance power element (IGBT) and 32-bit microcomputer achieves high voltage, large capacity, and high performance sufficient for EV/HEV battery test.

Effective for Energy Saving

High efficiency and high power factor are provided in addition to the power regeneration function for the commercial power supply, effective for energy saving.

Excellent Expandability

Systems can be flexibly configured in a range from small capacity to large capacity. Parallel operation is also possible facilitating expansion of the output volume.

Excellent Operability

All settings are made on the Windows NT PC, providing excellent operability and enhanced functions.

Specification (Example configuration of 6 power units and 2 power panels)

Power voltage	3-phase 200/220VAC +/-10%, 180kVA
Power frequency	50/60Hz
Output voltage	50 to 400VDC (bi-polar voltage as option)
Output current	Continuous +/-400ADC, Peak +/-500ADC for 1 min.
Voltage accuracy	+/-0.5% FS (25 deg.C +/-10 deg.C)
Current accuracy	+/-0.5% FS (25 deg.C +/-10 deg.C)
Control method	AC side: Power regenerative input power factor 1 control by PWM converter DC side: Constant-voltage/constant-current control by full bridge


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