The Cinergia B2C+ ePlus series is a state-of-the-art, bidirectional DC test platform that acts as both a programmable source and an active sink. Its regenerative architecture efficiently feeds energy back into the grid, significantly reducing operating costs and heat generation. With a power factor > 0.98 and a THDi < 3 %, it meets the highest requirements for grid quality and energy efficiency.
Typical applications include battery and PV emulation, charging and discharging tests, energy storage systems, DC/DC and DC/AC converter tests, electromobility, avionics, smart grid validation and power hardware-in-the-loop (P-HiL). The series covers a wide power range from 7.5 kW to 160 kW at voltages of 20 – 800 V DC and can be extended to up to 1,500 V or over 1 MW system power in master/slave mode.
Model in focus: B2C+15 (15 kW)
The B2C+15 is the versatile 15 kW model in the series and is particularly suitable for development and test environments where flexible power profiles, high precision and a compact design are required. It combines robust power supply capability with excellent control performance and offers an outstanding price-performance ratio for laboratory applications.
- Voltage range: 20 – 800 V DC
- Nominal power: 15 kW
- Current capability (3-channel, unipolar, 2Q): ±22.5 A per channel
- Current capability (1-channel, unipolar, 2Q): ±67.5 A total
- Current capability (bipolar, 4Q): ±22.5 A
- Operating modes: CV, CC, CP, CR, Power-Amplifier (P-HiL), Steps/Sequencer, Battery Pack Testing (incl.), optional battery & PV emulation
Technical classification compared to other models
The B2C+15 is in the lower mid-range of the series and offers a current capability of ±67.5 A in 1-channel mode – significantly more than the more compact B2C+10 (±45 A) and almost twice that of the entry-level model B2C+7.5 (±30 A). This makes it ideal for tests with medium-sized battery stacks, DC/DC converters or smaller traction applications where precise current control and energy efficiency are crucial.
Compared to the larger models (e.g. B2C+20 or B2C+30), the B2C+15 offers an ideal balance between power reserve, price and compactness. Thanks to the identical control architecture and software environment, it can be seamlessly combined with more powerful devices or used as a stand-alone device in laboratories that require high flexibility and accuracy.
Product features of the series:
- Bidirectional & regenerative: Energy flow in both directions with backfeed into the grid to save energy.
- Grid-friendly: THDi < 3 % and power factor > 0.98 at rated power.
- Power portfolio: 13 models from 7.5 kW to 160 kW; standard 20 – 800 V DC.
- Overload capacity: up to 200 % short-term; 150 %/1 min, 125 %/10 min; DC overcurrent up to 110 % for 1 min.
- Multi-channel concept: 3 independent DC channels (2Q) or 1 channel with triple current capability; optional 4Q operation (bipolar).
- Parallel connection & series connection: Master/slave up to 8 units; parallel, series or series/parallel for more power or up to 1,500 V DC.
- Operating modes: CV, CC, CP, CR, power amplifier (P-HiL), steps/sequencer; battery pack testing included; optional battery and PV emulation.
- Fast dynamics: Step response typ. 1–2.5 ms (depending on mode and nominal value).
- Operation & software: 4.3" touch, Windows GUI with sequence editor, CSV import, data logging with 400 ms resolution.
- Interfaces: Ethernet/Modbus-TCP, isolated analog/digital I/Os; optional RS485, CAN/RS232 (via gateway); P-HiL integration possible.
- Safety: Emergency stop, interlock signals, configurable alarms/limits, comprehensive protection functions (OV/OC/OL, short circuit, watchdog, etc.).
- Efficiency & cooling: = 91 % (15–30 kW); forced air cooling for stable continuous operation.
- Measurement parameters: Mains U/I/P/f; output U/I/P (rms/avg), DC link, temperature measurements; data logging via FTP.
- Standards & conformity: CE; safety EN-50178/EN-62040-1; EMC EN-62040-2; RoHS.
- Options: Battery emulation, PV emulation, insulation monitoring (IT networks), anti-islanding, low-ripple capacitance, 30 kHz switching option (depending on model).
