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MVGS Series Medium-Voltage Grid Simulator

Direct medium-voltage grid simulation, up to 35 kV by configuration.

A configurable medium-voltage source/load platform for SST, PCS and megawatt-scale power-electronics validation, with four-quadrant regeneration and programmable grid disturbances.

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MVGS Series Medium-Voltage Grid Simulator
Output voltage
Up to 35 kV
Line-to-line, configurable
Power capacity
1 to 10 MVA
Standard; expandable to 20 MVA+
Output THD
≤ 1.0%
At base frequency under linear load
Power flow
Four-quadrant
Regenerative source / load

Overview

MVGS is a four-quadrant medium-voltage grid simulator and programmable AC source/load platform for megawatt-scale power-electronics testing. Its cascaded power-cell topology provides configurable 5 kV to 35 kV output without an external step-up transformer.

Standard power capacity is 1 to 10 MVA, with expansion to 20 MVA and beyond. The selected voltage, power, cooling and interface configuration defines the test-system envelope.

Additional product details

Medium-Voltage Grid Simulation for AI Data Center Power and MW-Scale Power Electronics

The MVGS Series is a medium-voltage grid simulator for projects that need direct 5 kV to 35 kV output, 1 MVA to 20 MVA+ capacity, four-quadrant regenerative operation and programmable grid disturbances in one laboratory platform. It is positioned for AI data center solid-state transformers, energy-storage PCS, high-power renewable-energy systems, and megawatt-scale power-electronics validation.

MVGS is not an AI model or AI software product. It is power-infrastructure validation equipment for teams moving high-power facilities toward medium-voltage distribution, SST conversion stages, energy-storage PCS validation, and grid-interactive renewable-energy systems.

Engineering Use Cases

Typical MVGS projects include AI data center SST validation, SST converter-stage testing, energy-storage PCS source/load validation, renewable-energy inverter and PCS ride-through testing, harmonic and inter-harmonic immunity work, and regenerative laboratory grid emulation. The common thread is that the device under test needs a real medium-voltage electrical boundary rather than a low-voltage approximation.

Validation Workflow

MVGS can support grid-code-oriented workflows such as IEEE 1547, UL 1741, IEC 62116, IEEE 519, and GB/T 19964 test contexts, subject to final configuration and test-plan review. Standard capabilities include LVRT, HVRT, ZVRT, sag, swell, harmonic injection, unbalance simulation, independent three-phase control and programmable RoCoF.

Configuration and RFQ Notes

The modular Power Cell Cascaded topology allows configurable direct medium-voltage output, reducing the need for large external step-up transformers in suitable laboratory setups. Standard control interfaces include LAN, RS485 / Modbus RTU and a fiber optic sync interface; optional analog I/O and RS232 depend on the selected configuration.

For quotation, provide the voltage class, MVA rating, input voltage, output mode, cooling preference, LVRT/HVRT/ZVRT profiles, harmonic order, RoCoF requirement, expected DUT type, site power constraints, protection needs, interface requirements and target acceptance evidence. MVGS is usually not the right starting point for low-voltage benchtop AC source work or projects without a defined safety boundary, cooling plan and FAT/SAT method.

Model Configuration

The series uses a configurable naming structure:

MVGS AAA-BBB-CCC-DDD-EEE

  • AAA: Rated output power
  • BBB: Rated output voltage line-to-line
  • CCC: Rated output current
  • DDD: Options
  • EEE: Input voltage line-to-line

Available options:

  • -HV: Increased maximum output voltage for HVRT testing
  • -W: Water cooling

Decide Whether MVGS Is the Right Commercial Path

MVGS is the commercial product page for projects that need a real medium-voltage programmable boundary: configurable 5 kV to 35 kV output, megawatt-scale apparent power, four-quadrant source/load operation, and defined disturbance workflows. It should not replace the grid-simulator selection guide, which owns vendor-neutral selection questions, or the medium-voltage grid-simulator RFQ guide, which owns procurement-document structure.

Use a lower-voltage or lower-power platform when the DUT connection, power envelope, event matrix, and facility boundary do not require MVGS. Review the broader power-supply and grid-simulator catalogue before treating medium voltage or MVA-scale capacity as a default requirement.

Evidence Required Before Configuration and Pricing

Send the DUT port voltage and current envelope, required MVA, power-flow directions, output mode, ride-through and disturbance profiles, grounding and protection boundary, cooling preference, facility one-line, interface requirements, and required FAT/SAT files. State which values are mandatory, which are targets, and which remain open for engineering review.

See the MVGS selection guide for family specifications. For SST projects, also review the full-power SST test-bench boundary. Final ratings, event performance, protection, site regeneration, cooling, interfaces, and acceptance evidence remain configuration-specific.

Request an MVGS configuration review with the electrical envelope, facility constraints, and acceptance plan attached.

Engineering Overview

The MVGS Series is a medium-voltage programmable AC power platform developed for grid simulation and megawatt-scale power-electronics validation, including AI data center solid-state transformers, energy-storage PCS systems, and high-power renewable-energy systems. Its modular Power Cell Cascaded topology enables direct medium-voltage output, reducing the need for large external step-up transformers in laboratory environments.

The platform supports both source and sink operation with full four-quadrant regenerative capability. In addition to standard voltage and frequency programming, it can reproduce grid faults, ride-through events, harmonic disturbances, frequency excursions, and three-phase unbalance conditions, making it suitable for grid-code-oriented test workflows subject to final configuration and test-plan review.

Key Capabilities & Applications

Direct medium-voltage testing

Validate SST, PCS, renewable-energy converters and other medium-voltage equipment using configurable output up to 35 kV line-to-line.

Grid disturbances and ride-through

Reproduce LVRT, HVRT, ZVRT, voltage disturbances, unbalance and harmonic injection up to the 50th order. The optional -HV configuration provides 1.3 × rated-voltage overvoltage capability.

Regeneration and system control

Operate as an AC source or regenerative load with energy returned to the grid. Standard LAN, RS485 / Modbus RTU and fiber-optic synchronization support system integration.

All capabilities and operating conditions

Direct Medium Voltage Output

Delivers configurable 5 kV to 35 kV output without bulky external step-up transformers

Megawatt-Scale Expansion

Scales from 1 MVA to 10 MVA standard, expandable to 20 MVA and beyond

Four-Quadrant Regeneration

Operates as both programmable AC source and regenerative AC load with energy returned to the grid

Advanced Grid Simulation

Supports LVRT, HVRT, ZVRT, voltage disturbances, harmonic injection, and unbalance simulation

Project Integration Scope

Standard LAN, RS485 / Modbus RTU, and fiber optic sync interface; confirm additional interfaces for the selected configuration

Common applications

  • AI Data Center Power
  • Solid-State Transformer
  • Medium-Voltage UPS
  • PCS / Energy Storage
  • Wind Converter
  • MV Components
  • LVRT, HVRT, and ZVRT ride-through testing
  • harmonic and inter-harmonic immunity testing
  • MW-scale laboratory grid emulation
Applications and test requirements

AI Data Center Power

Validate MV distribution, SST conversion stages, MV UPS behaviour and PCS interaction before high-power rollout.

5-35 kV · 1-20 MVA+ · Regenerative

Solid-State Transformer

Exercise medium-voltage conversion stages under ride-through events, unbalance and programmable frequency changes.

HVRT · LVRT · RoCoF > 5 Hz/s

Medium-Voltage UPS

Reproduce sag, swell, interruption and dynamic load workflows where a low-voltage source would not represent the system boundary.

< 1 ms rise/fall · 3-phase · MV load cases

PCS / Energy Storage

Run four-quadrant source and sink tests for PCS platforms, regenerative loading and grid-code-oriented disturbance profiles.

AC/DC modes · 50th harmonic · Energy return

Wind Converter

Check converter behaviour during medium-voltage grid events, harmonic conditions and independent three-phase control scenarios.

Unbalance · Phase control · 30-70 Hz

MV Components

Scope reactors, capacitors, resistors, switchgear and other MV components against the configured voltage and protection envelope.

Protection scope · Cooling choice · FAT evidence

Technical Specifications

ParameterSpecification
Output VoltageUp to 35 kV line-to-line, configurable
Power Capacity1 MVA to 10 MVA standard, expandable to 20 MVA+
Frequency Range30 Hz to 70 Hz standard, custom wide range available
Output THD<= 1.0% at base frequency under linear load
Output ModesAC, DC, AC+DC standard/optional
Overvoltage Mode1.3 x rated voltageHVRT testing; optional -HV configuration
Rise/Fall Time< 1 ms0% to 90% / 90% to 0%
Standard InterfacesLAN, RS485 / Modbus RTU, fiber optic sync interface
View all 38 specifications
ParameterSpecification
Product FamilyMVGS Series medium-voltage grid simulators / programmable AC power supplies
Primary RoleMedium-voltage grid simulation and four-quadrant regenerative AC source/load testing
Platform TypeFour-quadrant programmable AC power supply / medium-voltage grid simulator
Input Voltage10 kV, 13.8 kV, 34.5 kV, or 35 kV AC 3-phase +/-10%, configurable
AC Line Frequency50 Hz / 60 Hz +/-10%AC input
Power Factor0.95AC input
THDi<= 3%AC input
Efficiency>= 90%
Phase Output Control0.0 to 360.0 deg relative phase control
Harmonic GenerationUp to the 50th order
RoCoF> 5 Hz/s programmable
Voltage Accuracy<= 0.2% F.S.
Current Accuracy<= 0.3% F.S.
Frequency Accuracy0.01 Hz
Phase Accuracy+/-0.3 deg50 Hz
CoolingForced air or liquid coolingLiquid cooling requires optional -W configuration
Optional InterfacesAnalog I/O 0 to 5 V / 0 to 10 V for HIL and RS232, depending on configuration
Phase setting resolution0.1 deg
Control display15.6-inch industrial TFT touchscreen with Windows-based GUI
Waveform capture samplingUp to 10 kS/s
Output load regulation≤ 0.2% F.S.
Output line regulation≤ 0.1% F.S.
Measurement power accuracy≤ 0.3% F.S.
Measurement voltage accuracy≤ 0.2% F.S.
Measurement current accuracy≤ 0.3% F.S.
Protection functionsInput OVP/UVP; output OCP/OVP/OPP/OTP/SCP; insulation monitoring; module fault detection
Operating environment0 to 40 °C
Storage environment-20 to 85 °C
Relative humidity20 to 90% RH, non-condensing
Configuration option codes-HV: overvoltage capability; -W: liquid coolingOptional configuration codes; project/model dependent.

Specifications are subject to change without notice.

Models, Configuration & Compatibility

MVGS

Configured electrical envelope

Select the voltage, current and MVA rating for the DUT. The model pattern MVGS AAA-BBB-CCC-DDD-EEE identifies rated output power, output voltage line-to-line, output current, options and input voltage line-to-line.

Voltage and cooling options

-HV provides increased maximum output voltage for HVRT testing, specified as 1.3 × rated voltage. -W specifies water cooling. Both options depend on the selected project configuration.

Control interfaces

LAN, RS485 / Modbus RTU and fiber-optic synchronization are standard. Analog I/O at 0–5 V / 0–10 V for HIL and RS232 are optional, depending on configuration.

Engineering review

Confirm event performance, protection and grounding, site regeneration, cooling and FAT/SAT evidence for the selected system. Family limits do not define every project configuration.

Control interfaces and software

MVGS standard interfaces include LAN, RS485 / Modbus RTU, and fibre-optic synchronisation. Optional analog I/O and RS232 are configuration-dependent. Additional command interfaces, HIL integration, host software, logging, and waveform review should be confirmed during project scoping.

LAN · RS485 / Modbus RTU · Fiber optic sync interface · Optional Analog I/O · Optional RS232

Technical Resources

Download Selection Guide

PDF technical specifications

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Selection guidance

Format: Medium-voltage grid simulator

Coverage: Up to 35 kV line-to-line; 1 to 10 MVA standard; expandable to 20 MVA+

Best for: Four-quadrant medium-voltage grid simulation for SST, PCS, renewable-energy, and megawatt-scale power-electronics validation.

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Information for your quotation
  • DUT voltage/current envelope, required MVA, power-flow directions, input voltage and output mode.
  • LVRT/HVRT/ZVRT and disturbance profiles, harmonic order, RoCoF and interface requirements.
  • Facility one-line and power constraints, grounding/protection boundary, cooling plan and required FAT/SAT evidence.
Detailed quotation requirements
  • Review the voltage class, MVA range, disturbance capability, harmonics and control interfaces before treating MVGS as a grid-code or AI data center power validation platform.
  • Where MVGS earns its place: Built for the gap between lab equipment and utility-scale power. MVGS is most useful when the DUT sits at medium voltage and the test team needs programmable grid behaviour, regenerative loading and project evidence in the same bench plan.
  • Direct-to-MV workflow: Make the test plan visible before the cabinet is quoted. The stronger MVGS RFQ is not a long shopping list. It is a short engineering model: operating envelope, grid events, acceptance evidence and integration boundary.
  • Step 01 — Set the MV envelope. Confirm input feed, output voltage class, MVA range, cooling, protection boundary and installation constraints. Evidence: Voltage / MVA map.
  • Step 02 — Program grid events. Define LVRT, HVRT, ZVRT, sag, swell, unbalance, harmonic and RoCoF profiles for the DUT and target workflow. Evidence: Disturbance profile list.
  • Step 03 — Capture acceptance data. Align FAT/SAT records, waveform capture, interface logs and configuration files with the evidence required by the buyer. Evidence: Test report package.
  • Request: Send MVGS RFQ.
  • Fit: Use MVGS when the project has a real medium-voltage boundary.
  • Fit: AI data center MV power architecture validation.
  • Fit: SST, MV UPS, PCS and wind-converter test benches.
  • Fit: Projects needing direct MV output instead of a step-up transformer chain.
  • Fit: RFQs that require FAT/SAT records, waveform evidence and configuration traceability.
  • Not fit: Low-voltage benchtop AC source work.
  • Not fit: Small inverter tests where MV site power is not available.
  • Not fit: Projects without a defined safety boundary, cooling plan or acceptance method.
  • Not fit: Teams looking for AI software rather than power-infrastructure validation hardware.
  • RFQ checklist: Voltage class; MVA rating; Input feed; Output mode; Cooling option; DUT role; Grid-code workflow; LVRT / HVRT / ZVRT profiles; Harmonic order; RoCoF target; Interface needs; Safety boundary.
  • RFQ note: For AI data center power, SST or MV UPS projects, also include the intended architecture, load profile, regenerative-energy requirement and the acceptance evidence expected by the buyer.
Scope a medium-voltage grid simulation bench

Send the voltage class, MVA rating, DUT role, grid-event profiles, site power, cooling and interface requirements for quote-stage engineering review.