Spacecraft deorbiting electrodynamic tether

The invention relates to the technical field of spacecraft deorbiting, and discloses a spacecraft deorbiting electrodynamic tether, comprising an electrodynamic tether and a charging and degassing device, wherein the electrodynamic tether comprises a conductive wire and an elastic layer sleeved outside the conductive wire, and the charging and degassing device is connected with the electrodynamictether for charging and degassing into the elastic layer. The invention provides a spacecraft deorbiting electrodynamic tether, the elastic layer sleeved outside the conductive wire is inflated by aninflating/deflating device, so that the elastic layer becomes an air column with an internal air pressure and a certain stretching tension, thus, the electrodynamic rope becomes a rod with certain bending and torsional stiffness in space, which improves the stability of the electrodynamic rope in space, avoids the problem that the effective length of the rope decreases due to the backward folding,does not need to consider the disturbance of the axis direction of the rope, and makes the state control of the electrodynamic rope relatively simple. In addition, it is convenient to model, which makes the electrodynamic tether more convenient and concise in theoretical analysis and model operation.