CE-6000 battery test system
a. Power battery simulation, C-rate test.
b. Life cycle test.
c. Power test, capacity test, energy density test.
d. Power battery virtual distribution: charge/discharge curve fitting, battery consistency test and evaluation.
e. High rate charge/discharge test.
f. Power battery, serial energy-storage battery module test: single cell voltage, Single cell temperature monitoring(high-voltage equipment).
Features(some features required a customization):
a. High-performance charge/discharge test platform developed for high-power battery modules(or packages).
b. Adopting AC/DC、DC/DC Dual-level high frequency module design, combined with low temperature drift, high-performance multi-channel 24-bit analog-to-digital conversion chip(ADC) to achieve higher stabilize accuracy.
c. High-level power density system with multi-channel integration and capable for energy recovering.
HMI operation, smart calibration.
d. Multiple adaption for BMS, supports the same/different charge and discharge ports, relay/MOSBMS solution, independent CAN and RS485 communication expansion, and DBC configuration.
e. Remote control available for host computer through Ethernet, channels parallel, pulse and driving simulation available.
f. Man-computer integration interface design, minimized system for easy-understand operating, customized setting available, automatic reminder for termly calibration.
The CE-6000 test system is designed to test high-capacity battery modules and packs. This battery test system is distinct from high-level accuracy, stability, dynamical rapid response speed, and multi-channel flexible features.
The CE-6000 system is capable of dual channel input and energy recovery systems to maximize the cost efficiency, allowing the electrical energy produced during discharge to be returned to the electrical grid.
The high-level sampling resolution is powered by the bidirectional high-frequency DC converter topology and the high-performance 24 bit multichannel AD converter chips (ADC), which are more compatible than the traditional single-range testers.
Charging to Discharge
Discharge to Charge
Design of the system is inspired by three-tire architecture design, that are power system tier, centralized monitoring tier, and remote interaction tier. Each tier works independently to ensure the reliability of the system.
B. Self-adaptive damping control algorithm
a. The resonance peak generated by LCL filter will be restrained to ensure the stability of closed-loop system.
CC Charge/Discharge test
CCCV Charge/Discharge test
100ms pulse width
Discharge to 0V test(0 negative voltage model)
a. Three Phase non-neutral wire design: To satisfy the demand of quick response, reliable three phase bridge PFC circuit, stable voltage was adopted for thsi Three phase non-neutral wire design.
b. High power-low harmonic: Bi-directional power factor>0.99，Low current harmonic<5%，adaptable for extreme grid condition，grid-tie inverter (GTI).
c. Soft-switching: combined with the mature and excellent soft switch design to realize dual-way high-frequency isolation, bi-directional energy flow, high-level energy efficient, high energy density.
d. Compatibility: Reliable and effetely model adapted by excellent electromagnetic compatibility.
|1||Main channel current output cable||3 meters|
|2||Main channel voltage sampling cable||3 meters|
|3||Battery pole connector||Ring connector|
|4||Temperature sampling line (AUX)||3 meters|
|5||AC Power cable||3 meters|
|6||Network cable||Site configuration|
|Data sectional recording|
Independent record conditions for each steps.
3sections for each record conditions based on Voltage of customized setting
|MySQL centralized data management system|
|Data output mode|
|Host computer communication mode|
LAN，independent network segment，IP pool based on the quantity of testers
|Calibration||Voltage/current calibration software is included|
The battery testing formation and grading system software-Battery Testing System Data Analyzer(BTSDA) has variety of data analysis and export methods, and supported curve comparison.
Figure 1 BTSDA cycle life Voltage, current curve
Figure 2 CCCV seamless handoff
Figure 3 Curve comparison
Windows 10 Professional
One UPS power supply(suggestion)
BTS 8.0.X Client-side test operator
BTSDA8.X Data analyzer
BTS battery test formation&grading system platform is based on the on-suite network and host computer. This system is easy to operate, and the users can login the system remotely through the Internet to operate the tester. Also, this system is adapted by the SQL database, centralized control of the multiple test equipment, and centralized management and analysis of all the data.
Figure 4 BTS Network topology
|Operation||≦70% RH(no condensation)|
|Storage||≦80% RH(no condensation)|