AC Regenerative Loads & Sources

Programmable Power for AC Loads & Sources

NH Research, Inc.'s (NHR) AC Regenerative products are designed to assist companies in testing AC products while simultaneously improving utility-energy efficiency and reducing operating costs. NHR’s 4 Quadrant AC Load (9430) series follows the AC source voltage and frequency providing programmable power draw including true poser factor phase shifts. This product is commonly used in the testing of generators, stand-alone inverters, and similar products which generate a voltage/frequency output. NHR's Regenerative Grid Simulator (9410) series is a special bi-directional source that simulates the utility voltage and regenerates power sourced by grid-tied inverters. Both of these product series are regenerative, meaning that they convert power from the UUT back into usable AC power which is precisely matched to and returned to the facility resulting in lower net utility consumption. Operating costs are lowered by reduced consumption and demand charges as well as reducing or eliminating costs associated with installation, operating, and maintaining chillers and air-conditioning systems.

There are a wide range of AC applications NHR's regenerative products are design to support including: generators (50/60Hz & Aviation), inverters (standalone & grid-tied), AC power sources, Electric Vehicles (EV), on-board chargers (OBC), vehicle to grid (V2G), EVSE, micro-grids, and much more!

Key Features:
  • Regenerative, recycles loading power instead of converting it into waste heat
  • Advanced control features beyond simple settings of voltage, current, & power
  • Simulation of real-world conditions (including transients & parameter adjustment)
  • Built-in waveform digitizer & advanced measurement system
  • Precision measurements with separate voltage/current ranges
  • Eliminates need for additional measurement devices

NHR regenerative products deliver the power, precision and flexibility needed to meet or exceed your test solution needs.

Regenerative AC Loads - NH Research (NHR)
Micro Grid Solar Wind Test Solutions - NH Research (NHR)

Regenerative Grid Simulator 50kW up to 1.2MW – Model 9510

The 9510 Regenerative Grid Simulator is the industry leading solution for testing and verification of high-power grid-tied applications in compliance with regulatory testing standards, worldwide. The 9510 has a built-in power amplifier mode for Power Hardware in the Loop (PHIL) applications providing further testing and simulation capability ideal for research labs.

Select power levels ranging from 50kW, 75kW, or 100kW modules. Modular and scalable power is available in 100kW modules up to 1.2MW. Programmable frequency is between 30Hz and 120Hz. The output can be AC, DC, or AC+DC and the AC can be single, split or 3-Phase. With this wide range of power, frequency, and phase configuration options, the 9510 provides the ultimate flexibility to test the broadest selection of grid-tied products.

Applications include Distributed Energy Resources, Energy Storage Systems, Solar PV, Vehicle to Grid (V2G) testing, evaluation, and certification.

Regenerative Grid Simulator – 9410

NHR’s Regenerative Grid Simulator 9410, or Grid Emulator, is ideal for simulating complex power disturbances for testing micro-grid and smartgrid applications. A wide-range of AC conditions can be emulated including phase imbalance, voltage sag, frequency changes, and harmonic injection.

Applications include grid simulation/emulation for testing PV inverters and other grid-tied products for compliance to IEEE 1547, UL 1741, and global industry standards.

Micro Grid Solar Wind Test Solutions - NH Research (NHR)
Residential Solar Test Solutions - NH Research (NHR)

Regenerative 4 Quadrant AC Load

NHR’s Regenerative 4 Quadrant AC Load is ideal for simulating almost any complex linear or non-linear load with a unique ability to operate in all 4-quadrants. This bi-directional capability significantly expands load simulation relative to 2-quadrant AC loads.

Applications include testing of Vehicle to Grid (V2G), solar and grid-tied inverters, UPSs, AC sources, rectifiers, circuit breakers and fuses.


Have a Question Regarding Our AC & DC Regenerative Test Solutions?

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