Reconfigurable fully integrated inductance for high-speed transient stability emulation

This paper presents a fully integrated, recon- figurable inductance, developed for high-speed power system transient stability emulation. Known active induct- ance topologies are not suitable for this application for two main reasons. Firstly, most active inductors are used at very high frequencies, due to their RF applications, and secondly, the DC characteristics of active inductors lead to a saturation problem, as a result of offset currents that occur when connecting them in series. Based on a gyrator- C topology, an inductance was realized in a CMOS 0.35 μm technology and is detailed in this paper. We were careful to take into account imperfection, calibration, mismatching and process variation. Finally, all requirements were ful- filled to use this inductance in power system AC emulation.