ABB HS PMG Permanent Magnet Generator

Overview & Key Features

The ABB HS PMG is a high-speed three-phase permanent magnet generator (PMG) engineered to maximize energy yield in wind turbine and renewable energy applications. By replacing conventional rotor windings with permanent magnets, the HS PMG eliminates the need for a separate excitation system and removes approximately 30% of total conventional generator losses. The result is a compact, lightweight machine that maintains premium efficiency across the full speed range.

Key Features:

• Premium efficiency at all turbine speeds
• Up to 98% efficiency, including high performance in partial load operation
• Short circuit withstand capability without demagnetization
• Rotor designed with high overspeed endurance
• Bearing design that avoids circulating currents
• Compact size and reduced weight for easier drivetrain integration
• No separate excitation required (permanent magnet excitation)
• Full converter (FC) concept compatibility

Atomic Answer: The ABB HS PMG is a permanent magnet synchronous generator that removes rotor excitation losses by using permanent magnets instead of windings, reaching up to 98% efficiency with a compact footprint suitable for wind turbine and renewable energy drivetrains.

Practical Applications / How It Works

The HS PMG operates on the full converter (FC) concept, where the generator is decoupled from the grid through power electronics. Permanent magnets mounted on the rotor create a constant magnetic field that interacts with the stator windings, producing stable three-phase electrical output. Because there are no slip rings, brushes, or external excitation systems, the unit delivers higher reliability and lower maintenance demand than conventional synchronous generators.

Practical Applications:

• Wind turbine generators for onshore and offshore installations
• Tidal, hydrokinetic, and other renewable energy systems
• High-speed geared drivetrains and direct-drive architectures
• Easy upgrade path for doubly-fed turbine OEMs migrating to the full converter concept
• Any renewable application requiring compact, high-efficiency generation

The full converter topology enables broad grid code compliance and improved energy capture under variable wind conditions. The robust permanent magnet construction allows the HS PMG to maintain output stability during sudden load changes and short circuit events, while the high overspeed endurance rating protects the rotor during gusts or transient operating conditions.

Why Choose Spare Parts Map

Spare Parts Map is a global supplier of industrial spare parts, primarily serving customers across Europe. With more than 20 years of experience, our team responds to inquiries quickly and ensures that your products reach you without any problems. We do not offer a direct purchase option on our website; instead, you can Request a Quote for the ABB HS PMG and our specialists will provide current availability, lead time, condition, and worldwide delivery options tailored to your project.

Frequently Asked Questions (FAQ)

Q: What efficiency can be expected from the ABB HS PMG? A: The ABB HS PMG achieves up to 98% efficiency across a wide operating range, including strong performance at partial load. The permanent magnet design maintains this high efficiency at all turbine speeds because rotor excitation losses are eliminated.

Q: Does the ABB HS PMG require an external excitation system? A: No. The HS PMG uses permanent magnets mounted on the rotor, so no separate excitation is required. This removes the need for slip rings and brushes and reduces total losses by approximately 30% compared to conventional generators.

Q: Is the ABB HS PMG limited to wind turbine applications? A: No. Although the HS PMG family was originally proven in wind turbine service, it is well suited for other renewable applications such as tidal, hydrokinetic, and other high-speed renewable energy systems that benefit from a compact and efficient generator.

Q: How do I obtain pricing for the ABB HS PMG? A: Pricing is available by Request Quote through Spare Parts Map. Since there is no direct buy option on our platform, submit a quote request and our team will respond quickly with availability, lead time, unit condition, and worldwide delivery details.