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Regenerative Grid Simulator for Grid Disturbance Testing, PHiL, and Regenerative AC/DC Testing

When an AC Source Is No Longer Enough

The IT7900P Series from ITECH is more than a standard AC power source. It is a regenerative grid simulator for realistic AC/DC testing.
The series combines an AC source, a 4-quadrant AC/DC source, a regenerative AC/DC load, and a PHiL power amplifier in one platform. This allows realistic testing of PV inverters, ESS converters, EVSE, and V2G/V2X systems, for example. Grid disturbances, energy feedback, and dynamic transitions between source and load operation can also be tested in a controlled and realistic way.
With up to 21 kVA in 3U, 350 V (L-N), and expandability beyond 1 MVA, the series also covers high power requirements in laboratories and test benches.

For Grid Simulation Instead of Pure Power Supply

The IT7900P Series is the right choice when the goal is not just to supply power, but to test in a targeted way. AC, DC, AC+DC, and DC+AC reproducibly replicate real supply conditions, DC bias, ripple, and defined disturbance profiles. LIST, SWEEP, and Surge & Sag modes, programmable output impedance, and freely definable waveforms support tests for voltage dips, voltage rises, frequency variation, phase jumps, LVRT, and harmonic injection.

For Test Tasks With Source and Load Operation

The IT7900P Series combines grid simulation, an AC/DC source, a regenerative AC/DC load, and a PHiL amplifier in one system. This simplifies the test setup because fewer individual instruments need to be integrated, coordinated, and operated. At the same time, the units feed absorbed energy back into the grid instead of converting it into heat. This reduces cooling effort and relieves the mains connection, especially during long test sequences and at higher power levels.
The series integrates well into automated test systems via USB, CAN, LAN, and Digital I/O. GPIB, analog interface, and RS232 are available as options.
This is where the difference from a conventional AC source becomes clear: a standard AC power source is often sufficient for pure supply tasks. However, when grid behavior, energy feedback, and transitions between source and load operation need to be tested, grid simulators such as the IT7900P Series from ITECH are the technically more suitable solution.

Request the Right Configuration Now

We support you in selecting the right IT7900P configuration for grid simulation, regenerative source and load testing, PHiL, and standards-related AC/DC testing. Together, we define the power level, voltage range, interfaces, and expansion level for your test system.

Variants

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Specifications

Specification Value
General Specifications
SiC Technology Fast, efficient, and precisely controllable
Power Density Up to 15 kVA in 3U
Output Voltage Up to 350 V (L-N)
Power Expansion Parallel Operation Up to 960 kVA (for 1U/2U models, up to 16 units can be connected in parallel; for 3U models, up to 64 units can be connected in parallel)
Energy Regeneration Energy is efficiently fed back to the grid
Operating Modes Single-phase, three-phase, split-phase, and multi-channel operation
Voltage Extension Up to 200% of rated voltage in inverted mode
Simulation Modes LIST, SWEEP, and Surge & Sag
Waveform Library Integrated waveform database
Harmonics Simulation and analysis up to the 50th harmonic, with support for IEC 61000-3-2 and IEC 61000-3-12 (voltage and current harmonic analysis, voltage harmonic simulation in source mode, current harmonic simulation in load mode, fundamental frequency ≤ 60 Hz)
Arbitrary Function Freely definable waveforms
Waveform Import Import custom waveforms via CSV
Phase Angle Freely adjustable from 0 to 360°
Operation Color touchscreen with simple menu navigation
Standard Interfaces USB, CAN, LAN, and Digital I/O integrated
Optional Interfaces GPIB, analog interface, and RS232
Protection Functions Auto-Clear, POVP, and Watchdog
Current Source Mode not available in multi-channel mode
Communication Protocols CANopen, Modbus, LXI, and SCPI
Specifications in Source Operation
Device Function Regenerative grid simulator and 4-quadrant AC/DC source
Frequency Range 16 Hz to 2400 Hz
PHiL Function Power amplifier for PHiL applications
Islanding Test Mode Supports R, L, C, as well as active and reactive power settings (not available in multi-channel mode)
Output Modes AC, DC, AC+DC, DC+AC
Multi-Channel Function A single unit can test 1 to 3 DUTs at the same time (not available for single-phase models)
Output Impedance Programmable
Harmonics Harmonics and interharmonics can be generated
Frequency and Phase Synchronization For 6-phase and 12-phase output
Test Functions LVRT, phase jump, frequency variation, and harmonic injection
Test Standards IEC 61000-4-11, IEC 61000-4-13, IEC 61000-4-14, IEC 61000-4-17, IEC 61000-4-28, and IEC 61000-4-29
Trigger Functions Synchronous capture of the DUT voltage waveform for data acquisition and simulation functions
Specifications in Load Operation
Device Function Regenerative 4-quadrant AC/DC load
Frequency Range 16 Hz to 500 Hz
AC Operating Modes CC, CP, CR, CS, CC+CR, CE
CE Mode Simulation of 14 circuit topologies, including single-phase rectifier RLC and parallel RLC topologies
DC Operating Modes 9 modes, including CC, CR, CP, and CV
AC Operating Modes Rectifying and non-rectifying
Crest Factor 1.414 to 5.0
Phase Shift -180° to 180° (when the rectification function is enabled, the setting range of the phase shift is limited by the crest factor)
Power Factor 1 Function The current waveform follows the voltage waveform
Angle Control Adjustable from 0 to 359°

Options & Accessories

Manufacturer number Name
IT-E510-15U Rack Kit, 15U, Gray (Standard Rack for Models >30 kVA)
IT-E511-15U Rack Kit, 15U, Black (Standard Rack for Models >30 kVA)
IT-E510-27U Rack Kit, 27U, Gray (Standard Rack for Models >30 kVA)
IT-E511-27U Rack Kit, 27U, Black (Standard Rack for Models >30 kVA)
IT-E510-37U Rack Kit, 37U, Gray (Standard Rack for Models >30 kVA)
IT-E511-37U Rack Kit, 37U, Black (Standard Rack for Models >30 kVA)
IT-E31220-OO Test Lead 120 A/200 cm, Ring Terminal -> Ring Terminal, Black/Red
IT-E32410-OO Test Lead 240 A/100 cm, Ring Terminal -> Ring Terminal, Black/Red
IT-E32420-OO Test Lead 240 A/200 cm, Ring Terminal -> Ring Terminal, Black/Red
IT-E33620-OO Test Lead 360 A/200 cm, Ring Terminal -> Ring Terminal, Black/Red
IT-E168 Fiber Optic Kit for Parallel Operation of Single Units
IT-E169 Fiber Optic Kit for Parallel Operation of Cabinets
IT-E176 GPIB Interface
IT-E177 Analog & RS232 Interface
IT-E9003 ITECH Warranty Extension
IT-E9005 ITECH Warranty Extension

Scope of Delivery

Scope of delivery
1 x Unit(s) of the IT7900P Series
1 x Power cord
1 x USB communication cable
1 x Operating manual
1 x Factory test report

Applications

Application examples
Grid simulation
Energy storage
Photovoltaics
IEC testing
Laboratory, research, development, and certification
and many more
Education and training

Videos

Links & Downloads

Supplier

ITECH is one of the world's largest manufacturers of AC and DC power supplies. The group's diversified product portfolio includes battery testing and power supply test systems. The company's focus is on a competitive price-performance ratio.