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China Consulting Hotline:Medium Voltage VFD for High-Power Industrial Motors
The Wolong WD5100 Medium Voltage Variable Frequency Drive (VFD) is a high-power AC drive designed for medium-voltage industrial motor applications.
The WD5100 uses a cascaded multilevel voltage-source topology and supports both induction motors and permanent magnet synchronous motors (PMSM).
It is available for 6 kV and 10 kV motor systems, with configurations covering applications from medium-capacity drives to high-power industrial equipment.
Key Features
Wide Medium-Voltage Power Range
| Rated Voltage | Capacity Range |
|---|---|
| 6 kV | 280–9000 kVA |
| 10 kV | 280–16,000 kVA |
Multiple Motor Types
The WD5100 supports:
Induction motors
Permanent magnet synchronous motors
This allows the same drive platform to be used for different high-power motor technologies.
Flexible Control Modes
The drive supports:
V/F Control
Open-Loop Vector Control
Closed-Loop Vector Control
The appropriate control mode can be selected according to motor type and application requirements.
Output Current Range
20–900 A
The actual current rating depends on the selected voltage and power configuration.
Cascaded Multilevel Topology
The WD5100 uses a cascaded multilevel voltage-source inverter topology.
This topology is suitable for medium-voltage high-power motor drives and provides scalable voltage conversion through multiple power cells.
Two-Quadrant and Four-Quadrant Operation
The WD5100 supports:
Two-Quadrant Operation
and
Four-Quadrant Operation
Four-quadrant configurations are suitable for applications requiring bidirectional power flow, regenerative braking and rapid changes between motoring and braking states.
Forced-Air Cooling
The WD5100 adopts forced-air cooling to manage heat generated by the power electronics during high-power continuous operation.
Technical Specifications
| Parameter | WD5100 Specification |
|---|---|
| Product Model | WD5100 |
| Product Type | Medium Voltage VFD |
| Rated Voltage | 6 kV / 10 kV |
| 6 kV Capacity | 280–9000 kVA |
| 10 kV Capacity | 280–16,000 kVA |
| Output Current | 20–900 A |
| Control Modes | V/F / Open-Loop Vector / Closed-Loop Vector |
| Supported Motors | Induction Motor / PMSM |
| Cooling | Forced Air Cooling |
| Operating Mode | Two-Quadrant / Four-Quadrant |
| Topology | Cascaded Multilevel Voltage-Source Inverter |
Typical Applications
The WD5100 is suitable for high-power medium-voltage motor applications such as:
Fans and Blowers
Pumps
Compressors
Conveyors
Mills
Cement Equipment
Mining Machinery
Metallurgical Equipment
Petrochemical Equipment
Power Plant Auxiliary Systems
The final drive configuration should be selected according to motor power, load type, operating duty and system requirements.
Why Choose WD5100?
6 kV and 10 kV operation
Supports major industrial medium-voltage motor systems.
Up to 16,000 kVA
Suitable for high-power industrial applications.
Induction Motor and PMSM Support
Compatible with both conventional asynchronous motors and permanent magnet synchronous motors.
Multiple Control Modes
V/F, open-loop vector and closed-loop vector control.
Four-Quadrant Capability
Suitable for applications requiring regenerative braking and bidirectional energy flow.
Cascaded Multilevel Topology
Designed for high-power medium-voltage drive applications.
Forced-Air Cooling
Designed for continuous high-power operation.
Wolong WD5100 Medium Voltage Drive
The WD5100 is a general-purpose medium-voltage VFD for large industrial motor systems requiring reliable speed and torque control.
With 6 kV and 10 kV voltage classes, 280–16,000 kVA capacity, 20–900 A output current, multiple vector-control modes, induction motor and PMSM compatibility, and cascaded multilevel voltage-source topology, the WD5100 provides a scalable solution for high-power industrial motor drives.
