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IT7900P High Performance Regenerative Grid Simulator
Adopting advanced SiC technology, the IT7900P series high-performance Regenerative grid simulator provides an all-in-one test solution that can be used not only as a grid simulator and four-quadrant power amplifier, but also as a four-quadrant  regenerative AC/DC electronic load. The full four-quadrant operation, regenerative ability can feedback power to the grid, meet the needs of environmental protection, but also save a lot of electricity and heat dissipation costs. Compact, modular and efficient structure design allows the IT7900P up to 15kVA in 3U single unit, and its power can be extended to 960kVA after master-slave parallel connection. Colorful touch screen with intuitive GUI allows IT7900P to directly define different waveforms. The rich operation modes can meet the test requirement of single-phase, three-phase, reverse-phase and multi-channel. It provides high flexibility for testing and can be widely used in many fields such as PV, ESS and EV.
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Model
Voltage
Current
Power
Resolution
Accuracy
Interface
Size
IT7915P-350-90
350 V
90 A
15kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT7912P-350-90
350 V
90 A
12kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT7909P-350-90
350 V
90 A
9kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT7906P-350-90
350 V
90 A
6kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT7905P-350-30U
350 V
30 A
5kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT79165P-350-990
350 V
990 A
165kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
37U
inquiry
IT79150P-350-900
350 V
900 A
150kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
37U
inquiry
IT79135P-350-810
350 V
810 A
135kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
37U
inquiry
IT79120P-350-720
350 V
720 A
120kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
37U
inquiry
IT79105P-350-630
350 V
630 A
105kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7990P-350-540
350 V
540 A
90kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7975P-350-450
350 V
450 A
75kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7960P-350-360
350 V
360 A
60kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7945P-350-270
350 V
270 A
45kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
15U
inquiry
IT7930P-350-180
350 V
180 A
30kVA
0.01V/0.01A
≤0.03%+12mV/ ≤0.05%+20uA
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
6U
inquiry
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* The above specifications are subject to change without prior notice.
Product Features

Parameter Features

Adopt advanced SiC technology
High power density, up to 15 kVA for 3U
Voltage can reach 350V L-N
Master and slave equal flow, parallel machines up to 960kVA *1
Highly efficient power regeneration
Comprehensive working modes selectable: single-phase, three-phase, reversed phase and multi-channel, Voltage extension to 200% of rated voltage in inverted mode
Support LIST/SWEEP/Surge&Sag three waveform modes
Built-in rich waveform database
Harmonic simulation and analysis function up to 50 times, built-in IEC61000-3-2/3-12 *2
Can simulate arbitrary waveform output, support CSV file import waveform
Phase angle 0-360° settable
Touch screen design, simple UI interface
Built-in USB/CAN/LAN /Digital IO interface,optional GPIB/analog & RS232 interface
Full protection functions including automatic clearing,POVP ,watchdog, etc.
Support CANopen, Modbus, LXI, SCPI and other communication protocols


Source Features

Regenerative grid simulator & full 4-Quadrant AC&DC power sources
Frequency: 16-2400Hz *4
Power Amplifier function for PHiL applications
Professional islanding test mode, support R, L, C and active, reactive power settings*7
Four output modes of AC/DC/AC+DC/DC+AC can be realized
Multi-channel function, single unit can test 1-3 DUTs at the same time *5
Programmable output impedance,simulation of real-world impedance
Harmonic/inter harmonic synthesis
Source Features
Frequency lock and phase lock function to achieve 6 phase& 12 phase power output
Compliance tests incl. LVRT /Phase Jump/Frequency variation/harmonic injection
Supported regulatory testing include IEC61000-4-11/4-13/4-14/4-28 etc.
Provide rich trigger configuration, synchronous capture of the voltage waveform of the object to be measured, to achieve data acquisition and simulation functions
Optional software can help complete the pre-compliance standards test of civil avionics/electrical ships interms of the multi-national safety regulations. *3


Load Features

Regenerative full 4-Quadrant AC&DC load
Frequency: 16-500Hz
AC mode supports CC/CP/CR/CS/CC+CR/CE multiple operating modes, and CE mode can simulate a  variety of circuit topologies such as single-phase rectifier RLC and shunt RLC.
DC mode supports 9 working modes such as CC/CR/CP/CV
AC mode supports both rectified and non-rectified modes
Adjustable crest factor: 1.414 ~ 5.0
Support phase shift function in the range of -180º~180º *6
The unit power factor1 function allows the current waveform to vary with the voltage waveform and the power factor is as close to 1 as possible
Supporting unloading angle control, 0-359° adjustable

*1 For 3U models max.64 units can be parallel connected.
*2 Voltage/current harmonic analysis, voltage harmonic simulation in source mode, current harmonic simulation in load mode, fundamental wave≤ 60Hz
*4 In grid simulator and island simulation mode, 16~150Hz
*5 Not available for single-phase models
*6 After the rectification function is turned on, the setting range of the phase shift is
restricted by the crest factor
*7 Not available for multi-channel mode

Functions and Advantages

All in one unit

IT7900P series integrates 3 products, a grid simulator(IT7900), an AC/DC power supply (IT7800) and a regenerative AC/DC load (IT8200).


4-Quadrant output

IT7900P series is not only a full four-quadrant power grid simulator, but also a full four-quadrant AC/DC electronic load. It can operate in all four quadrants. The efficient energy regeneration function makes it good for testing the frequency change of grid-connected PV inverters, voltage transients and anti-islanding protection.



High power regeneration efficiency

Whether it is used as a grid simulator or a load, in AC or DC mode, the IT7900P is high efficiently power regenerative. The energy generated by the DUT can be fed back to the local grid instead of dissipating in the form of heat, which is good for energy-saving and environment protection.



Professional Anti-islanding Test Mode

To meet the certification test of anti-islanding effect for grid-tied products, the IT7900P series provide a professional anit-islanding test mode. Users can adjust RLC parameters or configure the parameters of active power and reactive power to achieve the effect of simulating purely resistive or nonlinear grid loads, and further verify the anti-islanding protection response time of grid-tied DUTs under different equivalent impedances, three-phase load balancing and non-balancing conditions. The solution helps engineers to simplify the test circuit and cost savings of additional equipment such as RLC load and power meter.



Data acquisition and simulation

IT7900P series integrates an advanced data acquisition system based on digital signal processor, and provides measurement and waveform analysis functions of a digital oscilloscope, a power meter and a digital multimeter. Its current measurement accuracy is as high as 0.1%+0.2%FS, and the voltage measurement accuracy is as high as 0.1%+0.1%FS. 6 oscilloscope curves can be displayed at the same time, which not only saves the cost, but also saves the time for wiring connection. The trigger configuration of IT7900P can synchronously capture the voltage waveform of the DUT, and realize the functions of data acquisition and simulation. The user can import the collected abnormal voltage data of the
power grid into the IT7900P to reproduce the power grid status, set the repetition times, offset and other parameters of the waveform.



Simulate power grid and low voltage ride through (LVRT) testing

Low voltage ride-through refers to the ability of the power generation system to continue to operate without disconnecting from the grid within a certain range of voltage drop when the grid fault or disturbance causes a voltage drop, and even provides a reactive power to help the system recover the voltage. You can edit the test parameters under LVRT condition. With the fast response, it can fully meet the test requirements of LVRT. At the same time, the IT7900P series has the function of arbitrary waveform. With the LIST function, it can edit and simulate various grid
disturbance waveforms through the panel or software, such as instantaneous power failure, surge and voltage rise and fall.

Options & Accessories
  • IT-E9005(Optional)
    ITECH Warranty up to 5 years
  • IT-E9003(Optional)
    ITECH Warranty up to 3 years
  • IT-E168/169 (Optional)
    Parallel fiber Suite Single ma...
  • IT cabinet(Optional)
    IT cabinet 15U/27U/37U
  • AC power cord(Optional)
    AC power cord, 5m
  • IT-E177(Optional)
    RS232/Analog communication car...
  • IT-E176(Optional)
    GPIB
  • IT-E33620-OO (Optional)
    360A/2m/ round terminal a pa...
  • IT-E32410(20)-OO(Optional)
    240A/1m(2m)/Round terminal, a ...
  • IT-E31220-OO (Optional)
    120A/2m/ round terminal one ...
  • IT-E30615-OO(Optional)
    60A/1.5m/Round terminal, a pai...
  • IT-E30312(20)-YY(Optional)
    30A/1.2m(2m)/Y terminal, a pai...
  • USB
    For USB port communication
  • AC power cord (accessory)
    AC power cord (accessory)
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