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ITECH | AC Power Supply

IT7900E Regenerative Grid Simulator

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The IT7900E series is a programmable, four-quadrant grid simulator that serves as both a power amplifier and a regenerative electronic load. It is ideal for testing grid-connected equipment such as energy storage systems, microgrids, and V2X applications. Featuring advanced SiC technology, the IT7900E offers up to 960kVA in parallel mode, simulating power grid disturbances with high accuracy and energy recovery efficiency. With multiple operating modes and waveforms, it is perfect for R&D and power hardware in the loop (PHIL) applications..

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The IT7900E series combines both regenerative grid simulation and power amplification in a single unit. Its full 4-quadrant power amplifier function makes it perfect for Power Hardware in the Loop (PHIL) testing, which is essential for microgrid, energy storage, and electric vehicle applications.

The master-slave parallel configuration allows users to scale their testing capacity, reaching up to 960kVA for demanding projects. The digital I/O interface and optional analog interface make the IT7900E compatible with a wide range of external systems, enabling real-time monitoring and data logging. The unit can simulate various power grid disturbances like voltage sags, surge simulations, and phase jumps, with built-in compliance testing for standards such as IEC61000-4-11.

The touchscreen interface makes operation easy and intuitive, providing real-time monitoring of voltage, current, and waveform analysis. The device is equipped with a built-in oscilloscope function that enables users to analyze time-domain signals, phase relationships, and waveform triggers.

  1. Regenerative Four-Quadrant Operation
    Seamless sourcing and sinking capabilities with 100% power sinking and 88% energy recovery.

  2. High Power Density
    Provides up to 15kVA in 3U, and scalable to 960kVA with master-slave parallel connection.

  3. Advanced SiC Technology
    Ensures efficient energy recovery and reliable performance for complex testing environments.

  4. Comprehensive Operating Modes
    Supports CV (Constant Voltage), CC (Constant Current), Power Limit, and Frequency Modulation.

  5. Flexible Output Configurations
    Capable of single-phase, three-phase, reverse-phase, and multi-channel outputs.

  6. Arbitrary Waveform Editing
    Simulate various grid disturbance waveforms with the ability to edit and save custom waveforms.

  7. Built-in Harmonics and Interharmonics
    Supports up to 50th harmonic simulation, ideal for testing compliance with standards like IEC61000-4-11.

  8. Master-Slave Parallel Functionality
    Scalable to 1MVA+ for larger, more complex testing setups.

  9. Intuitive Touchscreen Interface
    User-friendly interface with the ability to edit waveforms, view real-time data, and perform on-the-fly analysis.



Specification IT7900E Series
Voltage Range 350V to 1200V (Varies by model)
Current Output Up to 630A (Varies by model)
Power Output Up to 15kVA (Standard), up to 960kVA (Parallel)
Resolution 0.01V/0.01A
Accuracy U: ±(0.1%+0.25%×F.S.), I: ±(0.1%+0.2%×F.S.)
Waveform Types Sine, Square, Triangle, Sawtooth, Clipped Sine
Harmonics Simulation Up to 50th Harmonic
Built-in Functions Phase Jump, Voltage Sag, Frequency Variation
Interfaces USB, CAN, LAN, Digital I/O, Optional GPIB/Analog
Size (W × H × D) 27U, 15U, 6U (Varies by model)