Regenerative Grid Simulator with PHIL – GSZ Series

Regenerative Grid Simulator with up to 440kW

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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.
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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.

AZX Power Amplifier Power Hardware in the Loop - PHIL 2

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.  

Regenerative Grid Simulator - Flexible AC DC Output Configurations

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.

Regenerative AC Power Source Program Transients

Simplify Testing with SmartSource Suite Remote Control Platform

Built-in SmartSource Suite Remote Control Platform

Pacific Power Source’s SmartSource Suite provides full remote control, development, and execution of test sequences in real-time. 

Intelligently monitor, control, and manage testing using the intuitive embedded web browser interface on any mobile device

SmartSource Suite Program Web Interface

Models Table

Model Rated Power (W/VA) Output Form Output Volts (Vac/Vdc) Output Amps/Phs (Aac/Adc) AC Input Units/Height Weight (Kg/Lbs)
Cabinet Systems
3300GSZ 30000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
45Arms/ 30Adc
90Arms / 60Adc
1 / 60″ 517/1140
3450GSZ 45000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
65Arms/ 40Adc
110Arms / 80Adc
1 / 60″ 517/1140
3550GSZ 55000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
75Arms/ 50Adc
130Arms / 100Adc
1 / 60″ 517/1140
3900GSZ 90000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
130Arms/ 80Adc
220Arms / 160Adc
2 / 60″ 1034/2280
31100GSZ 110000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
150Arms/ 100Adc
260Arms / 200Adc
2 / 60″ 1034/2280
31650GSZ 165000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
225Arms/ 150Adc
390Arms / 300Adc
3 / 60″ 1551/3420
32200GSZ 220000 1,2,3 Ø 440 VLN / ±650 Vdc
225VLN / ±335 Vdc
300Arms/ 200Adc
520Arms / 400Adc
4 / 60″ 2068/4560

Note: In Split Phase mode, rated power is 30kVA/30kW for 3300GSZ, 33kVA for 3450GSZ & 36.7 kVA for 3550GSZ Models.

NOTES

Key Features

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.

Solutions

Regenerative AC or DC Test Power:

The GSZ Series Power Source can both source and sink current and power from an EUT. Thus, it acts as a Grid Simulator for testing of grid connected, energy producing products like PV Inverters or bidirectional EV Chargers. In DC mode, the GSZ can be used to charge and discharge large battery packs up to 650Vdc with the addition of the Electronic Load Option L.

AC+DC Test Power:

Special test requirements such the application of a DC offset on an AC line or AC ripple on a DC supply output are supported by selecting the AC+DC Mode of operation. Note that AC+DC mode is optional.

Frequency/Voltage Conversion:

The GSZ Series is an excellent source of stable AC voltage over the frequency range of 15 to 200 Hz. The output frequency is accurate to 0.01%.

Phase Conversion:

With the ability to provide singe, split and three-phase outputs, the GSZ Series is the well suited to provide 1 Phase to 2 or 3 Phase or 3 Phase to 1 Phase conversion for large AC loads

Electronic Load Option:

The GSZ power source can be used as an electronic load by adding the “L” option. With this option, full electronic load capabilities are added in both AC and DC mode. Regenerative Loads save cost by reducing electricity use and heat generation. They also allow testing of higher power EUTs as most of the power sent to the GSZ load is regenerated back on the grid so the test lab power feed only has to cover the losses of the test equipment used and the EUT.

Supported Load Modes are Constant Current (CC), Constant Resistive (CR), Constant Power (CP) and Circuit Emulation (CE). Voltage, power and current ranges remain the same as in Voltage Source or Current Source modes.

Multiple, Easy to Use Control Options :

The GSZ Series controller offers both manual and full programmable control. Front panel operation is menu driven using a combination of direct access menu keys to the left of the large color display, five soft keys located on the right of the display as well as a color touch screen. The rotary knob can be used to scroll through menu fields and doubles as an ENTER key. The same knob allows for slewing of output parameters. A full decimal keypad is provided as well for direct parameter entry. The GSZ can also be operated remotely from one of its included remote interfaces. Using the SmartSource Suite embedded web server, easily operate and control the test system from a web browser via LAN or USB.

Specs

Power Source Specifications

Output Frequency:

DC, 15 to 200 Hz.

Phase Output Modes:

Single (1), Split (2) and Three Phase (3)

DC Voltage Range:

Low Range: 0 ~ ±335 Vdc Constant Power Mode
High Range: 0 ~ ±650 Vdc Constant Power Mode

Output Modes:

\AC, DC,  (AC+DC, DC+AC Option)

AC Voltage Ranges:

Low Range: 0 ~ 225 Vrms L-N / 0-390Vrms L-L Constant Power Mode High Range: 0 ~ 440 Vrms L-N / 0-760Vrms L-L Constant Power Mode

Programmable Impedance:

Resistive -10 Ohm to +10 Ohm, Inductive 0 to 2 mH

Mechanical Specifications

All GSZ models are cabinet systems with rear panel terminal blocks for AC input and AC or DC Output connections. Cabinets are on lockable casters so they can be moved around easily if needed.

Form Factor:

Floor standing cabinet on casters.

Height /Depth:

Approximately 60/ 32 inches

Width:

24 inches per cabinet.

Cooling:

Front forced air intake with top exhaust. Automatic Fan Speed Control for low acoustic noise and extended fan life.

Expanding the AC Power Source into an Automated Test System

Pacific’s line of Smartsource® AC Power Sources enable engineers to easily automate their testing by using industry standard software development environments. The GSZ series offers standard Ethernet/LAN connectivity, a browser interface, LXI compliance (LAN extensions for Instruments) to ensure inter operability with other LXI instruments and IVI (Interchangeable Virtual Instrument) driver to speed up ATE test program development.

Photos

Regenerative AC Source with PHIL - AZX Series Front View

3550GSZ Regenerative Grid Simulator

AGX Regen AC-DC Source Triple Cabinets

GSZ Parallel System

Available Transient Programming Modes

Programmable Load Power Factor from -1 to +1

Available Load Option Circuit Emulation Modes

Play Video about AZX Series Regenerative AC DC Source

AZX Series Overview Video (GSZ is based off of the same core architecture)

Brochures & Manuals

Product Brochure:

Download brochure to review product details.

Technical and Application Assistance: