This technology develops an omnidirectional spherical micro-wind energy harvesting system with a guided stator and curved rotor for low-speed, multidirectional, and highly turbulent urban winds. The spherical guiding shell and convergent passages improve inflow stability and startup potential while reducing safety concerns from exposed blades. With low-noise and omnidirectional features, it is suitable for building-integrated wind energy, remote auxiliary power, and net-zero energy networks.

The innovation lies in a dual-layer aerodynamic design combining a spherical guided stator with a compound curved rotor. The external stator guides multidirectional low-speed inflow, creating local acceleration and a more stable internal rotating flow to drive the rotor with 3D compound curvature and axial helical twist. CFD, wind-tunnel, and rooftop tests demonstrate its original configuration and engineering potential.

This technology addresses the noise, visual intrusion, and safety concerns of conventional horizontal- and vertical-axis wind turbines in cities. Its spherical guided design offers low-noise potential, improved safety, and architectural integration. Applications focus on building-integrated micro-wind energy, low-power smart city nodes, and disaster-resilient auxiliary power, helping buildings and public facilities become resilient micro-energy nodes.