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IT7900EP High Performance Regenerative Grid Simulator
Adopting advanced SiC technology, the IT7900EP 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 IT7900EP up to 21kVA in 3U single unit, and its power can be extended to 1MVA after master-slave parallel connection. Colorful touch screen with intuitive GUI allows IT7900EP to directly define different waveforms. The rich operation modes can meet the test requirement of single-phase, three-phase, reverse-phase. 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
IT79105EP-350-525
350 V
525 A
105 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7984EP-350-420
350 V
420 A
84 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
inquiry
IT7963EP-350-315
350 V
315 A
63 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
15U
inquiry
IT7942EP-350-210
350 V
210 A
42 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
6U
inquiry
IT7921EP-350-105
350 V
105 A
21 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
3U
inquiry
IT79126EP-350-630
350 V
630 A
126 kVA
0.01V/0.01A
<0.1%+0.1%FS /<0.1%+0.2%FS
USB/CAN/LAN/digital I/O port, optional GPIB/analog & RS232
27U
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 21 kVA for 3U
Voltage can reach 350V L-N
Highly efficient power regeneration
Master and slave equal flow, parallel machines up to 1MVA
Comprehensive working modes selectable: single-phase, three-phase, reversed phase and multi-channel, Voltage extension to 200% of rated voltage in reversed 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*1
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*2、Modbus、LXI、SCPI communication


Source Features

Regenerative grid simulator & full4-Quadrant AC&DC power sources

Frequency: 16-2400Hz *3

Power Amplifier function for PHiLapplications

Four output modes of AC/DC/AC+DC/DC+AC canbe realized

Programmable output impedance,simulation ofreal-world impedance

Harmonic/inter harmonic synthesis

Compliance tests incl. LVRT /PhaseJump/Frequency variation/harmonic injection

Supported regulatory testing includeIEC61000-4-11/4-13/4-14/4-28

Optional software can help complete thepre-compliance standards test of civil avionics/electrical shipsinterms of the multi-national safety regulations.


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 *4
♦ 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.Voltage/current harmonic analysis, v oltage harmonic simulation in sour ce mode, current harmonic simulation in load mode, fundamental wa ve≤60Hz

*2.Stay tuned
*3 In grid simulator and islanding simulation mode, 16~150Hz
*4 After turning on the rectification function, the setting range of the phase shift is restricted by the crest factor

Functions and Advantages



All in one unit

IT7900EP series integrates 3 products, a grid simulator, an AC/DC programmable power supply and a regenerative AC/DC load.



4-Quadrant output

IT7900EP 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 IT7900EP 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.



Complete operating mode