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OCC-Grid Tied Inverter

Breakthrough Technology

OCC-GTI leverages unique patented technology invented at Caltech & University of California and developed by the world-leading power electronic experts under partial sponsorship of the U.S. Department of Energy. OCC-GTI is the first hardware-enabled 3-phase 4-quadrant Grid-Tied Inverter that connects DC sources or batteries to AC grid with high reliability, ultrafast dynamics, and simple user interface, enabling precise AC current control. The OCC-GTI features industry leading dynamic speed and leading power density.

 

Applications

  • Wind, solar, micro-hydro, fuel-cell power generation

  • Battery energy storage charge and discharge

  • Regenerative AC load with precise inductance, capacitance, and resistance control

  • Regenerative DC load with precise resistance control

 

Options

  • Bidirectional power flow

  • Reactive power control

  • Four quadrant power operation

  • Low voltage ride through

  • 400, 1000Hz, or variable frequency available for custom products

 

Features

  • One-Cycle Control Technology

  • Current harmonics < 3%

  • Correct power factor to ~0.99

  • Efficiency > 98%

  • Stable zero load operation

  • Ultrafast response speed (100s of microsec)

  • Lightweight < 29kg (65lbs)

  • High power density ~1.2W/cm3 (20W/inch3)

  • Single unit 40 or 60kVA, scalable to MVA

 

Specification

Product GTI3050A6480/8002IR GTI3050A5380/6352IR GTI3100A6208/3652IR
GTI3075A6480/8002IR GTI3075A5380/6352IR
Electrical Specifications
AC Phase/Wires 3 phase/3 wires
AC Freq Range (Hz) 57 - 63 47 - 53 57 - 63
AC Voltage Range (V, rms) Line-to-Line 400 - 552 320 - 440 175 - 240
Max AC Current (A, rms) 75 / 50 100
DC Bus Voltage (V) 800 635 365
Efficiency @ Full Power 98.3% / 97%
AC Current THD @ Full Power with load THD<50% 3%
Power Factor @ Full Power 0.99
Mechanical Specification
Weight kg (lb) 32 (70)
Size (L x W x H) cm (inch) 58 x 45 x 13 (23 x 17.5 x 5.25)
Environment Specifications
Operating Temp. (℃) 0 to 40
Operating Relative Humidity w/o Condensation 0 - 95%
Storage Temp (℃) -10 to 55
Audible Noise (dBA) @ 1m (3ft) 80
Safety
UL 508C Designed