 | MVGS Series Programmable AC
Power Supply The MVGS (Medium-voltage Grid Simulator) Series is a high-performance, four-quadrant programmable AC power source specifically engineered for the testing and certification of megawatt-scale power electronics. Developed based on the proven BriPower ESA high-power technology platform, the MVGS series utilizes an advanced modular Power Cell Cascaded topology to achieve direct medium-voltage output. By eliminating the need for bulky and expensive external step-up transformers, the MVGS provides a "Direct-to-MV" output (ranging from 5kV to 50kV). This architecture ensures superior waveform quality with THD < 1%. Designed for versatility in large-scale laboratory environments, the MVGS features configurable medium-voltage inputs (e.g., 10kV, 13.8kV, 34.5kV, or 50kV), allowing for seamless integration into existing power grids. With its full four-quadrant regenerative capability, the system can act as both a grid simulator and a regenerative AC load, recycling up to 100% of energy back to the grid to significantly reduce operational costs and heat dissipation. The MVGS series is the ideal solution for simulating complex global grid conditions—including fault ride-through(LVRT/HVRT/ZVRT), harmonic injection, and frequency disturbances—for next-generation applications such as AI data center Solid State Transformers(SST), megawatt-scale Energy Storage PCS, and high-power renewable energy systems. |
Configurable Medium-Voltage Input & Output
Advanced Power Cell Cascaded Topology
Four-Quadrant Regenerative Operation
Comprehensive Grid Fault Simulation
Sophisticated Power Quality Injection
Independent three-phase control for voltage, frequency, and phase.
Harmonic & Inter-harmonic Generation: Supports up to the 50th order for immunity testing.
Simulation of three-phase unbalance, voltage fluctuations, and flicker according to IEC standards.
Flexible System Expansion
Master-slave parallel operation allows capacity to scale from 1MVA up to 20MVA and above.
Dual-mode cooling options: Forced Air-cooling or Liquid-cooling(-W option).
Configurable Input and Output Ranges
The MVGS series is designed for flexibilityin large-scale laboratory environments. Unlike standard low-voltage systems, itfeatures configurable medium-voltage inputs (e.g., 10kV, 13.8kV,34.5kV, or 50kV) to match local power distribution without requiringadditional step-down transformers. For the output, it utilizes a modularPower Cell Cascaded topology to achieve Direct-to-MV output up to 50kV.The system capacity ranges from 1MVA to 10MVA, with the ability to scaleup to 20MVA and above through master-slave parallel operation.
Sequence Output for Voltage andFrequency Disturbances
The integrated GUI supports a professional SequenceMode that allows users to program complex grid disturbances.
Programmable Parameters: Users can define output voltage, frequency, slew rates, dwell times, and switching times for each sequence step.
Transient Simulation: The system can precisely simulate grid fluctuations, dips, sags, and swells.
Dynamic Performance: It offers a rapid voltage step response time of < 1ms and a frequency change rate (RoCoF) of > 5Hz/s, enabling the reproduction of extreme transient grid faults.
Independent Three-Phase Control forUnbalance Simulation
To simulate realistic and degraded gridconditions, the MVGS provides fully independent three-phase control. Thevoltage amplitude, frequency, and phase angle (0.1° resolution) of phases A, B,and C can be programmed independently to simulate three-phase unbalanceand single-phase grounding faults.
Harmonic and Inter-harmonicGeneration
Harmonics: Supports the generation of up to the 50th order harmonics.
Inter-harmonics: Allows for the superimposition of non-integer inter-harmonics to meet rigorous immunity testing requirements.
Customization: Users can independently program the phase angle and amplitude for each harmonic component via the software interface.
Low and High Voltage Ride-Through(LVRT/HVRT)
The MVGS is a critical tool for certifyingrenewable energy inverters and PCS systems against grid-tie regulations.
Fault Templates: It includes built-in programmable curves for Low Voltage Ride-Through (LVRT), High Voltage Ride-Through (HVRT), and Zero Voltage Ride-Through (ZVRT).
Overvoltage Capability: For HVRT testing, the system supports an overvoltage mode reaching 1.3 times the rated voltage. (-HV Option)
Support Verification: It verifies the EUT's active and reactive power support capabilities during grid fault events.
Compliance with Global TestingStandards
The MVGS series is engineered to satisfy awide array of international and regional standards for grid-connected equipment:GB/T 19964, IEEE 1547, UL 1741, IEEE 519, IEC 62116 etc.
Advanced Graphical User Interface(GUI)
The system is controlled via an intuitive, Windows-basedGUI installed on a 15.6-inch industrial TFT touch panel.
Comprehensive Control: Provides full access to output settings, sequence programming, and hardware limits.
Real-time Monitoring: Displays input/output voltage, current, power, and internal IGBT temperatures.
Data Tools: Features high-speed waveform capturing (sampling up to 10k/s), real-time browsing, and historical data logging for post-test analysis.
High Power Supply Reliability
Designed for the rigors of high-powertesting, the MVGS integrates multiple layers of protection and diagnostictools.
Real-time Diagnostics: Continuously monitors all critical nodes. Users can immediately locate issues through specific fault codes (e.g., OVP, OCP, OTP, module communication errors).
Robust Architecture: Uses optical fiber communication between internal modules to ensure high noise immunity and system safety.
Safety Mechanisms: Includes essential safety features such as emergency stop buttons (local and remote), insulation monitoring, and hardware interlocks tailored for medium-voltage environments.
-HV Increase max output voltage for HVRT test
-W Water Cooling
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