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ITECH | AC Power Supply

IT7900 Regenerative Grid Simulator

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The IT7900 Regenerative Grid Simulator is a programmable, four-quadrant grid simulator designed for testing grid-connected equipment, such as PCS, energy storage systems, microgrids, and V2X devices. It offers advanced SiC technology and features high power density with 6kVA in 1U and 15kVA in 3U. The power can be extended up to 960kVA through parallel operation. The unit supports various operating modes and is capable of regenerative energy feedback, making it ideal for environmentally friendly testing..

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The IT7900 Regenerative Grid Simulator is designed for advanced testing and certification of grid-tied devices. It serves as both a grid simulator and a power amplifier, making it suitable for a variety of applications, including photovoltaic (PV) systems, energy storage systems (ESS), and electric vehicles (EV).

The simulator can handle high power testing, with up to 15kVA in a 3U unit and can be expanded to 960kVA by paralleling multiple units. Its arbitrary waveform generation function allows users to simulate voltage sags, surges, and frequency jumps, essential for compliance testing and grid disturbance simulations. The IT7900 also supports regenerative testing, ensuring that power generated during testing is returned to the grid, optimizing energy consumption.

The SiC technology used in the IT7900 enables high power density and efficient energy conversion, while the intuitive touch-screen interface allows for easy control and monitoring of the device. The unit supports multiple output modes (AC, DC, AC+DC, DC+AC), providing versatility for different testing environments.

With its built-in waveforms library, harmonic analysis, and regulatory testing capabilities, the IT7900 series is a powerful tool for testing grid-connected devices, offering both precision and flexibility for R&D and production testing.

  1. Advanced SiC Technology
    The use of Silicon Carbide (SiC) technology ensures high power density and low heat generation, improving overall system efficiency.

  2. High Power Density
    With 6kVA in 1U and 15kVA in 3U, this unit delivers powerful performance while saving valuable rack space.

  3. Regenerative Energy Feedback
    The IT7900 allows energy generated during testing to be fed back into the grid, reducing both electricity costs and cooling costs.

  4. Wide Voltage Ranges & High Flexibility
    The simulator operates at 350V L-N, with voltage up to 700V L-N in reverse mode. The phase angle can be set from 0-360°, simulating real-world conditions.

  5. Comprehensive Working Modes
    The device supports single-phase, three-phase, reverse-phase, and multi-channel configurations, making it adaptable for a wide range of testing scenarios.

  6. Arbitrary Waveform Editing
    Users can create custom waveforms and import them through CSV files, allowing for complex grid disturbance simulations.

  7. Regulatory Compliance Tests
    Built-in tests for LVRT, frequency variations, and harmonic injection, meeting standards such as IEC61000-4-11, IEC61000-4-13, and IEC61000-4-14.

  8. Master/Slave Parallel Operation
    Parallel up to 960kVA using master-slave configuration, allowing the system to handle large-scale test environments.



Specification IT7900 Regenerative Grid Simulator
Voltage Range 350V L-N, 700V L-N (Reverse)
Current Output Up to 630A
Power Output Up to 126 kVA (Standard), 960kVA+ (Parallel)
Resolution 0.01V/0.01A
Accuracy U: ±(0.1%+0.2%×F.S.), I: ±(0.1%+0.2%×F.S.)
Waveform Types Sine, Square, Triangle, Sawtooth, Clipped Sine
Harmonic Simulation Up to 50th Harmonic
Output Frequency Range 16Hz–2400Hz
Interfaces USB, CAN, LAN, Digital I/O, Optional GPIB/RS232
Size (W × H × D) 27U, 15U, 6U (Varies by model)