At Innotec Power, we specialize in designing and manufacturing Permanent Magnet Synchronous Generators (PMSG) for a wide range of applications. While our roots began in the renewable energy sector—particularly wind power—today our PMSG technology is used in far more industries. We now supply high-performance generators for off-highway hybrid equipment, engine-mounted generator units, PTO/shaft-driven systems, and renewable energy installations such as wind and hydro power plants.
Our PMSG technology offers a compact, efficient, and reliable power generation solution for mobile machinery, industrial equipment, hybrid vehicles, marine systems, and stationary backup power systems. Whether you are an OEM designing new equipment or looking to upgrade your existing system, Innotec Power provides customized solutions to meet your needs.
What is a Permanent Magnet Synchronous Generator?
A Permanent Magnet Synchronous Generator is a type of electrical generator where the rotor’s magnetic field is produced by high-strength permanent magnets instead of wound field coils. Unlike conventional synchronous generators, a PMSG does not require a separate DC excitation supply, brushes, or slip rings.
This brushless design results in a simpler, more efficient, and low-maintenance solution. By eliminating excitation losses and mechanical wear points, a PMSG delivers long service life and consistent performance in demanding applications.
Key characteristics of PMSGs include:
No DC excitation circuit required – The magnets themselves create the magnetic field.
Brushless operation – Reduces wear and maintenance costs.
Voltage proportional to speed – The faster the rotor spins, the higher the voltage output.
Frequency proportional to poles and RPM – Operates in synchrony with the mechanical input.
These features make PMSGs highly adaptable and suitable for both low-speed and high-speed power generation.
Why Choose a PMSG Over Other Generator Types?
For many OEMs and system designers, Permanent Magnet Synchronous Generators offer clear advantages over conventional generator designs:
High Efficiency – With no excitation losses, PMSGs can achieve higher conversion efficiency, improving overall system performance.
Compact Size – They offer higher power density, meaning more output from a smaller, lighter unit.
Stable Operation – Voltage and frequency remain steady, even under variable loads.
Long Service Life – With no brushes to wear out, servicing needs are minimal.
Versatility – Operates in diverse applications, from wind turbines to hybrid machinery.
These benefits translate directly into lower operating costs, reduced downtime, and improved energy efficiency—making PMSGs a top choice for modern power generation systems.
Applications for PMSG Technology
We design our Permanent Magnet Synchronous Generators for a variety of industries and use cases.
1. Engine-Mounted PMSG Units
Our engine-mounted generators integrate directly with diesel, natural gas, or hybrid drive engines. They are widely used in construction equipment, mining trucks, agricultural machinery, and military vehicles.
These units can supply both DC and AC power for onboard electronics, battery charging, and auxiliary systems. By pairing them with our controllers and rectifiers, OEMs can achieve constant voltage output regardless of engine speed.
2. PTO / Shaft-Driven PMSG
Designed to mount directly to a Power Take-Off (PTO) point on tractors, utility vehicles, and industrial machinery, these PMSGs provide reliable mobile power for remote locations. This makes them ideal for agriculture, forestry, and construction applications.
3. Renewable Energy Systems
PMSGs remain a core technology for wind turbines and small hydroelectric plants. Their high torque output at low speeds allows them to operate efficiently without a gearbox, reducing maintenance and improving overall reliability.
4. Marine & Offshore Power
On ships and offshore platforms, space and weight are at a premium. Our compact, high-efficiency PMSG units deliver dependable power for auxiliary systems, navigation electronics, and offshore installations.
5. Stationary Industrial Power
For backup generators and stationary power systems, PMSGs offer exceptional reliability with minimal maintenance needs—ideal for factories, telecom facilities, and critical infrastructure.
Advantages of Innotec Power PMSG Designs
At Innotec Power, we go beyond standard generator designs by offering solutions tailored to your application:
Brushless, Maintenance-Free Operation – No brushes mean less downtime and fewer repairs.
Custom Voltage & Frequency Options – Including 12V, 24V, 48V, 72V, and 400V DC outputs, plus AC options.
Adaptable to Low or High Speeds – Works with turbines, direct engine coupling, or belt drives.
Frameless OEM Integration – We can supply just the rotor and stator for direct integration into your equipment.
High Torque at Low Speeds – Perfect for PTO, marine, and renewable energy systems without a gearbox.
Example: PMSG in Off-Highway Hybrid Equipment
One of our clients, a leading construction equipment manufacturer, required a compact engine-mounted generator for a hybrid excavator. Using our PMSG paired with a proprietary DC controller, the system delivered a constant voltage to the battery pack—regardless of engine RPM.
The result?
Over 15% improvement in electrical efficiency compared to their old wound rotor generator.
Reduced fuel consumption and lower emissions.
Longer maintenance intervals and improved uptime in harsh working environments.
Why Innotec Power is the Right Choice for PMSG Solutions
Choosing the right generator partner is critical for system performance. At Innotec Power, we bring:
- Decades of engineering experience in permanent magnet machines.
- Custom design capabilities for unique OEM requirements.
- Global supply capabilities with proven reliability in field operations.
- Full lifecycle support, from concept to production.
Whether you need a generator for an engine-mounted alternator, a PTO-driven system, a wind turbine, or a marine application, we can engineer a Permanent Magnet Synchronous Generator to your exact requirements.