High-Performance Variable Frequency Drive for High-Speed Permanent Magnet Motors

The Wolong WD190 High-Speed Permanent Magnet Motor Drive is a high-performance variable frequency drive (VFD) designed specifically for high-speed permanent magnet synchronous motors (PMSM).

Developed for applications requiring high rotational speed, high efficiency, precise motor control and fast dynamic response, the WD190 combines advanced motor control algorithms, high-frequency PWM technology and dedicated excitation decoupling control to provide stable and efficient operation of high-speed motor systems.

With an output frequency of up to 1000 Hz, the WD190 is suitable for a wide range of high-speed electric drive applications, including high-speed compressors, turbo machinery, high-speed pumps, high-speed fans, industrial spindles and other rotating equipment.

Wolong can also provide a complete motor + VFD + control system package, with customized motor and drive parameters according to the customer's power rating, speed, voltage, load characteristics and operating conditions.

Product Highlights

High-Speed Motor Control up to 1000 Hz

The WD190 supports an output frequency of up to 1000 Hz, enabling high-speed operation for specially designed permanent magnet motors.

The high-frequency drive capability allows the system to achieve very high motor speeds depending on the motor pole configuration and mechanical design.

Actual maximum motor speed is determined by the motor design, rotor mechanical strength, bearings, cooling system, load characteristics and application requirements.

Dedicated Control for Permanent Magnet Synchronous Motors

The WD190 is optimized for high-speed PMSM applications.

Advanced motor control technology provides accurate control of motor current, torque and excitation, helping the motor maintain stable operation over a wide speed range.

The drive uses precise excitation decoupling control to improve the dynamic performance and controllability of permanent magnet motors, particularly under high-speed operating conditions.

Automatic Motor Parameter Identification

The WD190 features comprehensive motor parameter auto-tuning and self-learning functions.

The drive can identify key motor parameters and optimize control settings during commissioning, helping reduce manual parameter adjustment and simplify system integration.

This capability is particularly useful for customized high-speed motor systems where motor parameters may vary according to power rating, rated speed, winding configuration and mechanical design.

High Efficiency

The WD190 uses advanced power conversion and motor control technologies to improve overall drive performance.

Maximum drive efficiency can reach 98%, depending on the power rating and operating conditions.

When combined with a high-efficiency permanent magnet motor, the drive system can provide an efficient solution for applications requiring continuous high-speed operation.

Advanced Space Vector PWM Technology

The WD190 uses advanced Space Vector Pulse Width Modulation (SVPWM) technology to optimize inverter output voltage and current waveforms.

The optimized PWM control helps reduce:

• Motor current harmonics

• Torque fluctuation

• Motor temperature rise

• Drive temperature rise

• Electromagnetic noise

• Mechanical vibration caused by drive-related torque ripple

This is particularly important for high-speed rotating machinery, where motor stability, thermal performance and mechanical vibration can directly affect system reliability.

Fast Dynamic Response

High-speed industrial equipment often requires rapid acceleration, deceleration and load response.

The WD190 adopts advanced vector control technology to provide fast torque and speed response, helping maintain stable motor operation when the load changes.

The control system can be configured according to the specific requirements of the application and motor.

Technical Specifications

High-Speed Motor + VFD Integrated Solution

For high-speed industrial applications, the performance of the motor and VFD must be precisely matched.

Wolong therefore provides more than a standalone variable frequency drive. The WD190 can be supplied as part of a complete high-speed motor drive system, including:

High-Speed Motor + WD190 VFD + Control System + Auxiliary Equipment

The complete system can be engineered according to:

• Motor rated power

• Motor rated voltage

• Maximum operating speed

• Output torque

• Load profile

• Acceleration and deceleration requirements

• Cooling method

• Bearing configuration

• Installation environment

• Control interface

• Customer-specific operating requirements

This integrated approach helps ensure proper electrical matching, mechanical compatibility and stable operation of the complete high-speed drive system.

Customized High-Speed Drive Solutions

High-speed motors are often application-specific products. Motor voltage, speed, shaft design, bearings, cooling system and load characteristics can vary significantly from one project to another.

Wolong supports customized project solutions for high-speed motor and drive systems.

Depending on project requirements, customized systems can be designed for different voltage and power levels.

For example, high-power projects may require configurations such as a 690 V-class system with power ratings up to approximately 630 kW, combined with a customized high-speed motor and dedicated cooling and bearing systems.

The exact motor type and system configuration are determined according to the application requirements.

High-Speed Motor System Configuration

For high-speed applications, the drive system is not limited to the inverter itself. Mechanical and thermal components are also critical to system reliability.

A typical customized high-speed motor system may include:

High-Speed Motor

Motor design is optimized according to rated power, speed, torque and application requirements.

High-Speed Bearings

High-performance bearings, such as SKF high-speed rolling bearings, can be selected according to the required speed and mechanical load.

Independent High-Pressure Cooling

For high-power and high-speed applications, an independent high-pressure fan cooling system can be configured to improve heat dissipation and thermal stability.

Dedicated Control System

The drive and motor control system can be configured for speed control, torque control, process control, protection and communication with the customer's automation system.

Typical Applications

The WD190 High-Speed Permanent Magnet Motor Drive can be used in a wide range of industrial applications where high speed and high efficiency are required.

Typical applications include:

High-Speed Compressors

Suitable for high-speed compressor drive systems where stable speed control, high efficiency and fast dynamic response are required.

Turbo Machinery

Designed for high-speed rotating equipment requiring accurate speed regulation and reliable high-frequency motor control.

High-Speed Pumps

Suitable for high-speed pump systems where variable-speed operation can improve process control and energy efficiency.

High-Speed Fans and Blowers

The WD190 can provide precise speed control for high-speed ventilation and industrial airflow applications.

Industrial High-Speed Spindles

Suitable for high-speed spindle and rotating machinery applications requiring high-frequency inverter output.

Special-Purpose High-Speed Machinery

The drive can be customized for specialized industrial equipment according to motor parameters, speed requirements and operating conditions.

Why Choose the WD190?

The WD190 is designed around the specific requirements of high-speed motor applications rather than conventional low-speed motor control.

Its main advantages include:

Up to 1000 Hz output frequency
Supports high-speed motor operation and a wide range of high-speed applications.

Dedicated PMSM control
Optimized for high-speed permanent magnet synchronous motors.

Advanced excitation decoupling
Improves motor control precision and dynamic response.

Automatic motor parameter identification
Simplifies commissioning and motor-drive matching.

High efficiency
Maximum drive efficiency can reach 98%.

SVPWM technology
Helps reduce current harmonics, temperature rise, torque ripple and operating noise.

Customized system integration
Wolong can provide motor, VFD and control system as an integrated engineering solution.

Wolong High-Speed Motor and Drive Solution

As a high-speed motor and drive solution provider, Wolong can support projects from motor and drive selection to system integration and commissioning.

The solution can be customized according to the customer's:

Power → Voltage → Speed → Torque → Motor Type → Cooling → Bearing → Control → Load → Installation Conditions

This project-based approach allows the WD190 high-speed VFD to be matched with the appropriate motor and auxiliary systems rather than being treated as a standalone standard inverter.

For customized high-speed drive projects, customers can provide the required motor power, voltage, rated speed, maximum speed, load type and operating conditions. Wolong can then develop the corresponding high-speed motor + VFD + control system configuration.

Frequently Asked Questions

What is the WD190 VFD?

The WD190 is a high-speed variable frequency drive developed for high-speed permanent magnet synchronous motor applications. It supports output frequencies of up to 1000 Hz and provides advanced vector control and motor parameter identification functions.

What motor does the WD190 drive?

The WD190 is primarily designed for high-speed permanent magnet synchronous motors (PMSM). Customized system configurations can be developed for specific motor types and project requirements.

What is the maximum output frequency of the WD190?

The maximum output frequency is up to 1000 Hz.

What is the power range of the WD190?

The standard product range covers 7.5 kW to 560 kW at 380 V class. Higher-power and different-voltage configurations can be considered as customized solutions according to project requirements.

Can Wolong provide the motor together with the VFD?

Yes. Wolong can provide a complete high-speed motor + VFD + control system solution, with the motor and drive specifically matched according to the application.

Can the WD190 be customized?

Yes. The system can be customized according to motor power, voltage, rated speed, maximum speed, load characteristics, cooling method, bearing system and control requirements.

Is the WD190 suitable for high-speed industrial equipment?

Yes. The WD190 is specifically developed for high-speed motor applications and can be used in high-speed compressors, pumps, fans, turbo machinery, industrial spindles and other specialized rotating equipment.