The invention integrates a magnetic gear with a Segmented Rotor Switched Reluctance Motor (SSRM) to create a high-torque density motor suitable for various applications such as electric vehicle in-wheel drives, marine propulsion, eVTOL aircraft, and renewable energy generation. This compact system combines a flux-focusing magnetic gear (FFMG) with an SSRM, where the rotor segments with permanent magnets serve both motor and gear functions. The stator is housed inside the rotor, and a modulator ring coupling between the members of the magnetic gear. This design enhances torque density by generating both reluctance and magnet torque, while reducing costs by using the same magnets for motoring and gearing, making it an efficient, cost-effective solution for high-torque applications.
Type of IP
Faculty
Department
- Promotes electric vehicles: Reduces greenhouse gas emissions and fossil fuel dependency.
- Supports renewable energy: Advances wind and tidal power generation, aiding sustainability.
- Compact and cost-effective: Makes advanced technologies more accessible and affordable.
- Innovates transportation: Enables development of eVTOL vehicles, transforming urban mobility.
- Enhances industrial efficiency: Improves productivity in sectors like manufacturing and marine propulsion.
- Integration of SSRM and MG: Co-axially integrates SSRM with flux-focusing MG, eliminating separate gearboxes, ideal for in-wheel drives and marine propulsion.
- Dual-Purpose Rotor: The high-speed rotor with permanent magnets functions as SSRM and MG rotor, developing additional reactance torque along with reluctance torque.
- Concentric Arrangement: Four members are arranged concentrically and radially outward as (i) the stator, (ii) the high speed rotor, (iii) the modulator ring, and (iv) the outer rotor.
- Multiple Air-Gaps: Three air-gaps facilitate efficient magnetic flux modulation and torque transfer, for low-speed high-torque applications.
- Versatile Operating Modes: Supports various operating modes, suitable for applications needing continuously variable transmission (CVT).
- Axial and Radial Flux: Configurable in axial and radial flux setups, adaptable for large vehicles or wind power generators.
- High Torque Density: Uses same permanent (PM) magnets for motoring and gearing, enhancing torque density and cost-effectiveness by increasing PM utilization for electric vehicles and renewable energy.
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The Magnetic Gear Integrated Segmented Rotor Switched Reluctance Motor has reached a TRL-3 - Proof of Concept (Experimental/Simulation or otherwise). A more efficient and torque dense version of the same has been developed which currently being manufactured for experimentation.
Automotive, marine, aerospace, renewable energy, viz., wind power, tidal power, electric vehicle manufacturing, industrial machinery, energy storage and conversion
In-wheel drives, marine propulsion, eVTOL, tidal power generation, wind power generation, low-speed high-torque motoring, low-speed high-torque generating, continuously variable transmission (CVT), large vehicles, renewable energy systems