Precision AC Grid Emulation

Regenerative Grid Simulators for EV, PV & ESS

Four-quadrant AC power sources delivering full grid emulation and energy recovery for global compliance validation (IEEE 1547 / IEC 61000 / UL 1741).

Comprehensive 4-Quadrant AC Power & Grid Simulation

Chroma's Regenerative Grid Simulators are full 4-quadrant, bidirectional AC power sources engineered specifically to emulate complex utility grid conditions. As renewable energy, EV charging infrastructure (V2G/V2H), and energy storage systems (ESS) rapidly expand worldwide, rigorous validation under distorted grid conditions is vital for operational stability and safety compliance.

Instead of dissipating energy as waste heat, Chroma’s advanced regenerative architecture recycles power absorbed from the Unit Under Test (UUT) back to the local utility grid with **up to 90% energy recovery efficiency**. This dramatically lowers operational electricity expenditures, reduces test environment HVAC cooling demand, and accelerates green manufacturing initiatives.

  • Seamless 4-quadrant sourcing and sinking capability
  • Real-time simulation of voltage dips, swells, harmonics & frequency fluctuations
  • Compliance ready for IEEE 1547, IEC 61000-3-15, IEC 62116, & UL 1741 SA/SB
Chroma Regenerative Grid Simulator Equipment

Explore Chroma Regenerative Grid Simulator Series

High-density 3U chassis to multi-rack high-power systems configurable up to 105kVA+ parallel output.

Compact High Density

Chroma 61800 HD Series

Compact 9kVA to 15kVA power density packed in a single 3U rack-mount enclosure. Supports 0–350V / 0–606V phase voltages for space-constrained laboratory and production environments.

  • 9kVA / 12kVA / 15kVA Power Units
  • 30Hz – 100Hz Frequency Range
  • Single-phase & 3-phase Output
High Power Cabinets

Chroma 61800 Standard Series

Modular power cabinets providing 45kVA to 105kVA (parallelable up to 300kVA+). Engineered for high-power PV inverter testing, microgrid simulation, and commercial ESS validation.

  • 45kVA – 105kVA Cabinet Modules
  • 0–335V / 0–520V Phase Voltage
  • Built-in Arbitrary Waveform Generator
Specialized Application

AI Server Power Grid Simulators

Optimized for high-density AI data center power supplies and rack-level PDU power validation. Features rapid dynamic response to transient load surges up to 100kW+.

  • Dynamic Step Load Response
  • Low Total Harmonic Distortion (THD)
  • Automated PowerPro Control
Model Series Power Output Output Voltage (L-N) Frequency Range Regenerative Efficiency Key Applications
61809 / 61812 / 61815 9kVA / 12kVA / 15kVA 0 – 350 Vrms 30Hz – 100Hz / DC ~90% EV Charging (V2G), Onboard Chargers (OBC), Smart Grid
61845 / 61860 / 61800 45kVA / 60kVA / 105kVA+ 0 – 335 Vrms (520V Line) 30Hz – 100Hz ~88% - 92% Utility Scale PV Inverters, Wind Power, Battery Energy Storage
AI Server Grid System High Power Custom Rack Universal World Voltage 47Hz – 63Hz / DC Up to 92% AI Supercomputer PSU, Server Rack Microgrid Validation

Simulate Real-World Utility Grid Disturbances

Evaluating modern grid-tied products requires recreating severe, non-ideal power line anomalies. Chroma 61800 Regenerative Grid Simulators provide full waveform synthesis, enabling engineers to perform precise Low Voltage Ride Through (LVRT), High Voltage Ride Through (HVRT), phase angle jumps, voltage spikes, and frequency variations.

  • Voltage Dips & Transient Immunity: Test compliance to international standards like IEEE 1547 and IEC 61000-4-11 / 4-13 / 4-14 / 4-28.
  • Anti-Islanding Protection: Evaluate PV inverter safety disconnect mechanisms during grid blackouts according to IEC 62116.
  • Harmonic Distortion Synthesis: Generate synthetic voltage harmonics and inter-harmonics to analyze product behavior under degraded grid power quality.

Compliance Standards Supported

IEEE 1547 / 1547.1
IEC 61000-3-15
IEC 62116
UL 1741 SA / SB
VDE-AR-N 4105
EN 50549

Proven in Global National Laboratories & Microgrid Labs

"The Battery Innovation Center is proud to have Chroma units in-house as part of our Micro-Grid Test Environment. BIC utilizes three 61860 Regenerative Grid Simulators providing 180kVA of continuous, reliable grid emulation."

Battery Innovation Center (BIC)
Micro-Grid Test & Validation Team

"Idaho National Laboratory relies on Chroma's 61860 Regenerative Grid Simulators within our Power and Energy Real-Time Laboratory (PERTL) to modernize power grid architecture with at-scale hardware-in-the-loop (HIL) testing and emulation."

Idaho National Laboratory (INL)
Power Systems Technical Research Team

Optimize Your Grid Emulation & Renewable Energy Validation

Speak directly with Chroma’s application engineers to custom-configure a 4-quadrant regenerative grid simulator tailored to your voltage, power, and compliance requirements.

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