TRANSIENT STABILITY OF SMES MONOLITH CONDUCTOR WITH NORMAL STABILIZER

This paper presents an analysis of the transient stability of monolith conductors for a 0.5 MW-hr, 30 MW SMES system. Two configurations are considered: an enthalpy stabilized and a cryostable conductor. The tw o dimensional transient stability model includes steady-state and tran sient heat transfer, current diffusion in the stabilizer, current shar ing between stabilizer and strands, and thermal resistance between the superconducting cable and the stabilizer. The stability margin is det ermined for the enthalpy stabilized conductor and the dependence of th e conductor stability on conductor parameters is analyzed. For the cry ostable conductor, the stability model is used to determine the charac teristics of the conductor recovery dynamics.