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Model GSZ Series - Regenerative Grid ...

Model GSZ Series - Regenerative Grid Simulator

The GSZ series' high power density provides 30kVA/kW up to 55kVA/kW in a single cabinet and can parallel up to 440kVA/kW. AC Voltage Ranges: 0~225Vac and 0~440Vac – DC Voltage Ranges: 0~335Vdc and 0~650Vdc.

Simulate the Grid with Optional Load and PHIL Interface

The Regenerative Grid Simulator with PHIL – GSZ Series is based off of the core architecture of the AZX Series (video featured). This comprehensive platform is optimized for PHIL, has three powerful DSPs to cover advanced applications, and eliminates the need for add-on equipment. Simulate almost any power disturbance and distorted waveforms. Regenerative power allows sourcing and sinking of current up to 100% of rated power.

Test applications: Utility grid, closed-loop microgrids simulation, EV chargers, wall boxes, Vehicle-to-Grid (V2G), Vehicle-to-Home (V2H), Solar PV/grid-tied inverters, home energy storage systems, UPS, PDUs, test laboratories, and more.

Dual Voltage Range to Test Wide Range of Grid-Tied Devices

The GSZ Series Grid Simulator supports both low and high voltage ranges for AC or DC. Simulate the grid accurately with programmable transition of voltage ranges. The constant power voltage range for both higher current at lower voltage and higher voltages at lower currents eliminating the need to switch between voltage ranges. This prevents potential disruptions in output power.

Mobile-friendly, parallelable cabinets make it easy for set up and reconfiguration.

Increase power when needed to meet future test requirements.
Reduced downtime for paralleled cabinet configurations. Modularity increases up time during service and maintenance of individual cabinets.
Top air-cooled vents allow the units to be placed against a wall or back-to-back to maximize floor space.

Power Hardware-in-the-Loop High-Speed Analog I/O

The GSZ Series provides integrated test system design with a standard suite of analog and digital I/O functions. The user can assign command macros or setting parameters to analog or digital I/O pins as needed. This provides a unique level of customization for putting together sophisticated test stations.

While analog inputs and outputs are standard on all GSZ modes, for real-time Power Hardware in the Loop (HIL) Grid simulation applications, the GSZ offers an optional high speed set of analog inputs and outputs with fast response. By adding the H Option, the GSZ can be used as an amplifier for PHIL Applications. This analog interface provides high speed input for controlling frequency, voltage or current and waveshape. Voltage and Current output capture signals are returned to the Real Time Simulation System.

Ultra-Flexibility for Simulating Real-World Conditions

Simultaneous AC and DC operation of modes per phase (or channel), and the automatic switching of output modes provides test engineers the highest degree of flexibility. AC, DC, (AC+DC optional) output configurations are available in single, split, three phase and multi-channels with optional isolated neutrals in AC and DC.

Full galvanic isolation from facility AC input to output and between output phases/channels also protects the user and the UUT.

Easily Generate Harmonics & Inter-Harmonic Waveforms

The Regenerative Grid Simulator – GSZ Series has a built-in waveform digitizer and scope with fast transient capabilities at 100us time resolution supporting LIST, PULSE and STEP modes. Waveform generation includes ten Standard, Sine, Square, Triangle, Clipped and Harmonics AND Inter-harmonics included.

Available Models in 30kVA, 45kVA, 55kVA. Parallel cabinets up to 440kVA. Contact us for higher power.
AC/DC Electronic Load (Option L) to support Regenerative AC or DC Load Applications
High-Speed analog I/O controls for PHIL application support (Option H)
Regenerative Power > 90%; Source and Sink full Power and Current
AC Mode, DC Mode (AC+DC Mode Option)
DC,15 to 200 Hz Frequency Ranges
Dual Constant Power mode AC Voltage Ranges 0~225V L-N and 0~440V L-N
Galvanic Isolation from Facility AC Input to Output and Between Output Phases / Channels
Precision True-RMS metering of Volts, Amps, Power, VA, Power Factor and Crest Factor
Waveform capture scope function for voltage and current
Harmonic AND Inter-harmonics Included
Extensive Analog and Digital I/O for ATE and system integration
Top air-cooled vent design allows cabinets to be placed back to back or against a wall to maximize floorspace.

1, 2 or 3 Phase Selectable Output from front panel or bus command
Sine, Square, Triangle, THD and Arbitrary waveforms
Up to 0-440 VAC Direct Coupled Out
3 Phase AC input with Active PFC, selectable input voltage
200 stored programs for both static and dynamic Transient Testing
LIST, PULSE and STEP Transient Modes
Continuous Self Calibration (CSC)
Programmable Output Impedance (R+L) both Real-Time & RMS modes
Precision Load Regulation – 0.02% with CSC engaged in AC / DC modes
Standard RS-232, USB, GPIB and Ethernet Interface with SCPI compatibility
IVI Instruments drivers
CE (EMC/Safety) Marked
Special 2 or 3 independent outputs settable to different modes (Voltage or Current Source or ELoad)
SmartSource Suite control with embedded web browser with LAN/Ethernet or USB

Design Provides Total Control of AC and DC Power

GSZ Series Operating Features

Continuous Self Calibration:

Provides for exceptional regulation of the AC or DC output Voltage. When enabled, accuracy improves to ±0.02% referenced to the power source internal voltmeter.

Dual Voltage Ranges with Constant Power Operation:

Select between 225Vac LN or 440Vac LN voltage ranges for optimal power delivery at any voltage.

Waveform Library:

Up to 200 different waveforms can be stored in the waveform library for execution as part of a steady state program or for substitution in any output phase as part of a transient test program. Memory location #1 is a non-editable high resolution sine wave. Locations 2-200 are editable and can be substituted in any output phase. An unlimited number of waveforms may be stored on external memory using the available PPSC Manager Windows software.

Time Based Transients:

Create and execute transients that occur over a specified time segment to modify the output waveform, voltage, and frequency for any or all phases. LIST, PULSE and STEP Transient modes are supported.
An output trigger is provided for synchronizing external test equipment to the actual transient event.

Cycle Based Transients:

Create and execute transients that substitute a waveform in any or all phases for 1 to 100 cycles. The waveform being substituted can be selected and/or modified from the waveform library.