What are the advantages of multi-turn windings in brushless motors?

Key Advantages of Multi-winding (Multi-branch Parallel) Brushless Motors

Higher current-carrying capacity

By distributing the current across multiple parallel strands of fine wire, the current in each individual wire is reduced, making the motor suitable for high-current, high-power applications.

Lower Heat Generation and Uniform Temperature Rise

Current distribution reduces losses, increases the heat dissipation area, prevents localised overheating, and ensures more stable operation over extended periods.

Reduced Skin Effect Losses

During high-frequency operation, fine conductors minimise current clustering, significantly reducing copper losses and improving motor efficiency.

Smoother Start-up and Torque

The superimposed magnetic fields from multiple windings are uniform, resulting in minimal torque fluctuations and lower operational vibration and noise.

Excellent Process Adaptability

Fine copper wire is easier to wind, allowing for compact slot layout and higher utilisation of core space.

Enhanced Fault Tolerance and Stability

Minor faults in a single branch are unlikely to cause total system failure, and the motor exhibits better operational resilience during load fluctuations.

Compatibility with Wide Voltage Ranges (High and Low)

The number of parallel branches can be flexibly adjusted to suit different supply voltage scenarios.