The Cinergia B2C+ ePlus series is a modular, bidirectional and regenerative DC platform for laboratory, validation and end-of-line tests. Thanks to the regenerative topology, energy consumption and connected load in the test field are reduced. The devices work as a source and as a load, provide clean grid currents (THDi < 3 %, power factor > 0.98) and cover two or four quadrants depending on the configuration.
Typical applications: Battery testing and characterization, battery emulation, PV panel emulation, renewable energy, energy storage systems, electromobility and charging infrastructure, traction converters, avionics, smart grid and IEC compliance testing and power-hardware-in-the-loop (P-HiL).
The series comprises 13 models from 7.5 kW to 160 kW (rated power, with overload reserves of up to 200 % for short periods) and covers 20 - 800 V DC as standard. Power and voltage expansions are possible via master/slave connections (up to 8 units) - parallel, serial or serial/parallel - up to applications with up to 1,500 V DC. Depending on the mode, the three buck-boost channels allow 3-channel operation with independent setpoints or 1-channel operation with tripled current capability.
Model in focus: B2C+10 (10 kW)
The B2C+10 is the 10 kW all-rounder in the series - ideal when 800 V DC range is required and tests frequently switch between source and sink. It offers:
- Voltage range: 20 - 800 V DC
- Current capability (3-channel, unipolar, 2Q): ±15 A per channel
- Current capability (1-channel, unipolar, 2Q): ±45 A total
- Current capability (bipolar, 4Q): ±15 A
- Operating modes: CV, CC, CP, CR, power amplifier (P-HiL), sequences/steps, battery pack testing (incl.), optional battery & PV emulation
Technical classification compared to other models
Within the compact class (7.5 - 30 kW), the B2C+10 already offers ±45 A in 1-channel mode and is therefore higher than the B2C+7.5 (±30 A), but lower than the B2C+15 (±60 A), B2C+20 (±75 A) and B2C+30 (±90 A). The voltage range is identical across the entire series up to 800 V; differences primarily result from the current and therefore performance.
Compared to the high-performance variants (40 - 160 kW), the B2C+10 scores points with its more compact design and lower mains connection power, while the large models provide significantly higher currents (e.g. B2C+100: up to ±390 A in 1-channel mode). For larger test benches, the B2C+10 can be scaled via master/slave with up to 8 units (parallel/serial) to expand the power or voltage window - including coordinated control via the software.
Product features of the series:
- Bidirectional & regenerative: Energy flow in both directions, feedback into the grid to reduce costs.
- Clean on the grid: THDi < 3 % and power factor > 0.98 at rated power.
- Power portfolio: 13 models from 7.5 kW to 160 kW; 20 - 800 V DC as standard.
- 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.
- 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, intelligent data logging with 400 ms resolution.
- Interfaces: Ethernet/Modbus-TCP (open), isolated analog/digital I/Os; optional RS485, CAN/RS232 (via gateway); P-HiL integration possible.
- Safety: Emergency stop, interlock signals (input/output), freely configurable alarms/limits, extensive protection functions (OV/OC/OL, short circuit, watchdog, etc.).
- Efficiency & cooling: = 89 % (7.5-10 kW), = 91 % (15-30 kW), = 92 % (40-200 kW); forced air cooling.
- Measured variables: mains U/I/P/f; output U/I/P (rms/avg), DC link, heat sink temperatures; FTP data logging.
- Standards & Conformance: CE; Safety EN-50178/EN-62040-1; EMC EN-62040-2; RoHS.
- Options: Battery emulation, PV emulation, insulation monitor (IT grids), anti-islanding (grid-feeding), low-ripple capacitance, 30 kHz switching option for selected models.
