Radial low-RPM Halbach array PM Generator with serpentine coils.

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This generator is designed to convert low-potential energy into electricity efficiently. It can also be used in wind or hydro-generators for maximum power output. The Halbach array allows the magnetic field of permanent magnets to be utilized most effectively, eliminating the need for an iron disk. The magnetic field on the outer side of the rotor is significantly stronger than on the inside. The radial design of magnets and windings enables a uniform magnetic field and increases winding efficiency. This design outperforms axial designs in this context. A serpentine coil is the most efficient type of winding compared to three-phase winding, although it is more challenging to assemble. However, its benefits make it worthwhile. 3D printed parts can be used for details in this generator, using any plastic material. For more powerful generators, a solid filament is required to prevent deformation from a strong magnet. Combining 3D printing with radial Halbach array PM and serpentine coil principles allows the creation of highly efficient generators and motors, similar to radial and linear designs. This approach enables the production of generators in various capacities and sizes, ranging from small devices for the Internet of Things (up to 1-2W) to larger local installations (5-10 kW). 3D printing significantly reduces construction time and costs.