Key Features:
- Charge/discharge modes (CC, CV, CP)
Power Range: 10kW / 20kW per channel
Voltage Range: 60V/ 100V
Current Range: 100A/200A/300A/400A/ 500A/600A/700A/800A per channel - Regenerative battery energy discharge, efficiency 85%
- Channels paralleled for higher currents
- Driving cycle simulation
- Fast current conversion without current interrupt
- High precision measurement
- Smooth current without over shoot
- Test data analysis function
- Data recovery protection (after power failure)
- Independent protection of multi-channel
Security - Reinforce Risk Management
- Able to load test, cut-off, and protection criteria to a charging/discharging device directly for execution to achieve multi-layer protection through internal software and hardware
- Able to integrate external hardware to get real-time monitoring parameters from BMS, Data Logger, Chamber, and I/O signals to execute warning/cut-off/power off protection
- Able to monitor various voltage and temperature values of battery packs through readings from BMS and measurements on Data Logger; also able to perform instant judgment and protection based on set values
- Built-in multiple warning and protection modes : OVP, UVP,OTP, WIR_LOSS, CAL_ERR, POW_ERR, RM
Precision - Improve Product Quality
- High frequency sampling measurement technology: Max. sampling rate
- Voltage accuracy : ±(0.02% of rdg. ± 0.02% of F.S.)
- Current accuracy : ±(0.1% rdg. ± 0.05% mg.)
- Quick response test technology : 10ms(-90% to 90%) current slew rate applicable for various test applications
- Support dynamic driving profile simulation (waveform), which simulates the current and power state of real driving conditions to comply with the NEDC, FUDS and HPPC standards
High frequency sampling measurement technology
Generally, battery chargers/dischargers use software to read current values for power computing; however, limited data samplling speed colud result in large errors when calculating the dynamic current capacity. By increasing the V/I sampling rate and double integrating method, Chroma is able to provide capacity calculation with much higher accuracy. When the current changes, the data is not lost and the transmission speed is not affected.
- V/I sampling rate : 50kHz (per 20μs)
- Integrate calculus : I for capacity ; V x I for energy
▲General charger/discharger sampling rate ▲Chroma charger/discharger sampling rate
Quick response test technology
In quick response mode, the current is smooth without overshoot to avoid damaging the battery
- Current Ripple Noise <1%FS, Overshoot <1%
▲Overshoot <1% ▲Current slew rate 10ms (-90% to 90%)
Dynamic driving profile simulation
Battery packs are used under quick and irregular current conditions. The 17020E system simulates real conditions on the battery pack via the working condition simulator
- Dynamic charge/discharge power or current waveforms simulate the drive cycle or any real world application. In the dynamic current mode (waveform), the current transition time for maximum discharge and charge requires only 10ms
- Test steps can specify an Excel file from which to read the stored current/power waveform
- 720,000 points of driving profile memory available to save the waveform profile in each channel
- Interval for profile condition changes: 10ms~10sec
▲Driving profile simulation ▲Regulatory compliance testing standards ▲Profile simulation data loading equipment
The 17020E test system is specifically designed to meet the diversified requirements for testing secondary battery packs with high safety and stability. Charge and discharge protection will abort tests when abnormal conditions are detected. Data loss, storage and recovery are protected against power failure.
- Real-time multi channel battery pack status browse
- Icon Manager: Test status of each channel is managed through different icons, easy to read and understand
- Authority management: It sets the user's authority for operation
- Fault record tracking: It records the abnormal state of each channel independently
▲Battery Pro main panel ▲Real time monitoring ▲Customized reporting
Recipe Editor
- 255 charge/discharge conditions
- Sets dual layer loops (cycle & loop) with 9999 loops per layer
- Able to edit dynamic charge/discharge waveform with 10ms current switching speed
- Testing Step: CV / CC / CP / CC-CV / Waveform current / DCIR)
- Cut-off conditions (time, current, capacity, cut-off voltage, cut-off current, etc.)
- Next Step: Next / End / Jump / Rest
Statistical Reports
- Generate detailed report and step report
- Customized report format
- Exports test reports in PDF, CSV and XLS
- Graphical report function
- Report analysis Function: Users can create customized reports such as life-cycle report, Q (AH)-V(V) report, V(V)/I(A)/T( ℃)-time report and etc.
through the user-defined X and Y axis parameters. - Real-time browsing test reports of each channel
- Diversified reports & charts: Real-time report, Cut-off report, X-Y scatter chart report
▲ Rapid testing curves draw
Software Integration
- Thermal chamber : Synchronize temperature control with charge/discharge profile
- Data logger : Temperature or voltage data record that can be used for setting Cut-off and protection conditions
- BMS data record : Software setting to read data from BMS by data communication unit A692000/A692001. This supports SmBus and CAN bus. The data can be set in the conditions for cut-off or protection during testing
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