Grid Simulator

Grid Simulator

Regenerative AC grid simulators from Preen and ActionPower, delivering four-quadrant source-load operation for inverter, energy storage, and grid code compliance testing at up to megawatt scale.

Grid simulators reproduce AC grid conditions — voltage, frequency, phase, and disturbances — with true four-quadrant regenerative operation, meaning they can both source power to a device under test and sink power back from it, feeding absorbed energy to the grid rather than dissipating it as heat. They're the standard platform for testing grid-connected inverters, EV charging infrastructure, and energy storage systems against real-world grid faults, dips, and disturbances, and for anti-islanding and low-voltage-ride-through (LVRT) qualification to IEEE 1547, UL 1741, and IEC 61000-4-x standards.

Preen's PAS/PFV covers general PV inverter and EV charger testing, while ActionPower's TITAN and NEXUS platforms extend to utility-scale power, and CORTEX AC provides a compact, medium-power laboratory option.

Preen

Available as a Containerized / IP54 Option

The Preen PAS/PFV Series can be built into a customized outdoor container or upgraded to an IP54-rated enclosure, following the same approach as Preen's dedicated BPS shore power range — useful for ports, construction sites, remote installations, and other high humidity, heat, dust, or corrosion-exposed environments. Standard indoor chassis remain the default; contact Finch to configure a containerized or IP54 version for your application.

PAS/PFV Series

Regenerative Grid Simulator

A four-quadrant AC power source that sources power to a DUT and sinks power back to the grid at up to 90% efficiency, with built-in LVRT simulation for UL1741, IEEE 1547, and BDEW compliance.

View Full Series →

ActionPower

TITAN AC Series

Utility-Scale Regenerative Grid Simulation for Full-Power Inverter Test

Regenerative grid simulation at the highest power levels in the AC range, up to 750kVA per unit with sub-millisecond response, for full-scale central PV inverter and BESS validation.

View Full Series →

CORTEX AC Series

Bidirectional AC Platform for Input and Output Validation

A compact, modular rack-mount AC platform scaling from 6kVA to 22kVA, with integrated source-load functionality for AC input disturbance simulation and power HIL integration.

View Full Series →

NEXUS AC Series

4-Quadrant AC Grid Simulation for Inverter and Energy Storage Validation

Combines AC source and load with true 4-quadrant regenerative operation at up to 91% efficiency, scaling from 90kVA to 675kVA per cabinet with a DC-side battery/DC-link emulation port.

View Full Series →

Inquire About Any Series →

Related Reading