Products Description
The Three-Phase High-Voltage ACHV Inverter stands as a state-of-the-art power conversion tool, built to hook up directly with medium- and high-voltage AC grids. It supplies tightly controlled three-phase AC power for high-voltage motors and heavy industrial loads-what makes it different from regular DC-to-AC inverters. The Three-Phase High-Voltage ACHV Inverter mainly works via AC-AC conversion or direct high-voltage frequency conversion, so there's no need for middle transformer steps. That's why it's the go-to smart drive for industries that use 3.3kV to 13.8kV voltages, where efficiency, reliability and grid compatibility simply can't be compromised.
Core Technical Advantages
Direct High-Voltage AC-AC Conversion
Leveraging advanced Matrix Converter or Multi-Level CHB (Cascaded H-Bridge) topologies, this Three-Phase High-Voltage AC-HV Inverter directly transforms fixed-frequency, fixed-voltage high AC input into variable-frequency, variable-voltage AC output. Certain configurations eliminate the need for DC link capacitor banks, boosting reliability, extending service life, and minimizing maintenance requirements.
Ultra-Low Harmonic Distortion & Superior Power Quality
At full load, the input side achieves THDi < 3% and output side THDv < 2-made possible by sophisticated multi-level switching and active harmonic compensation. It fully complies with IEEE 519-2022 and IEC 61000-3-12/14 standards for harmonic emission limits.
Bidirectional Power Flow & Grid Support Capabilities
Four-quadrant operation enables full regenerative functionality, feeding braking energy back to the grid for reuse. Equipped with built-in grid-forming (V/f) and grid-following (P/Q) modes, it excels in weak grid, microgrid, and black-start scenarios.
Advanced Motor Control & Adaptive Technologies
Supports encoderless high-performance vector control for synchronous and asynchronous motors up to 15,000 kW. Integrated motor parameter auto-tuning and adaptive observer ensure consistent performance across all speed and load ranges.
Robust & Redundant Design
Featuring N+1 redundant power cells and a dual-redundant controller, the system maintains continuous operation even if a cell fails. Hot-swappable sub-modules allow for maintenance without shutting down the entire system.
Why Choose the TPHV-AC Series?
Space Saving: Our direct high-voltage conversion design removes the need for large transformers and external harmonic filters, giving you a more compact installation.
Cost Efficiency: With regenerative braking capability and top-tier efficiency, you save significantly on energy, lowering your total operating costs.
Designed for Tomorrow:
Our control system is built to evolve. Receive software updates to stay compatible with changing grid standards and new communication systems.
Worldwide Service Network: Get peace of mind with our 24/7 remote support system, backed by local technical teams ready to assist wherever you are.
Specification
|
Rated capacity of the frequency converter |
250~7700kVA |
|
Rated input frequency |
50Hz/60Hz( -10%~+10%) |
|
Control power supply |
380VAC,30kVA |
|
Rated input power factor |
＞0.96 |
|
Inverter efficiency |
≥98.5% |
|
Output frequency range |
0~120Hz |
|
Transmission quadrant |
Four quadrants |
|
Instantaneous overcurrent protection |
150% |
|
Overload capacity |
120% load, 60 seconds |
|
Torque limit |
10%~150% |
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