Solar Array Drive Assembly (SADA)

Product introduction

  This is a wholly industrialized product with both high cost-effectiveness and high reliability. It is based on mechatronic design, featuring light weight, high integration, non-conductive slip ring design and a miniature size. The usage of brushless DC motor can largely reduce power consumption while realizing a dynamical adjustment of the output torque. The first generation of this series has been verified in orbit in 2021.

Performance index

Rotation range: A-axis no less than ± 170 °; B-axis no less than ± 80 °
Control mode: The A-axis and B-axis work independently
Speed range: Track angular velocity : 0.05°/s~0.1°/s;Capture angular velocity : 0.1°/s~0.6°/s
Carrying capacity: Axial force : ≥500N; Bending torque:≥20Nm
Driving torque: ≥2Nm
Power outage holding torque: ≥0.36Nm
Operation temperature: -20-55℃
Angular position accuracy: better than 1.0 °
Lifespan in orbit: ≥10years