Development of a Movable HTS SMES System

A 600-V/150-kJ/100-kW conduction-cooled high-temperature superconducting (HTS) magnetic energy storage (SMES) system is developed. In this paper, the configuration of the HTS SMES is introduced. The magnet is a solenoid type, which uses two kinds of HTS tapes, and cooled to about 20 K. A series of laboratory experiments and field tests are carried out to evaluate the performance of the SMES system, including the current-carrying ability of a magnet, the active and reactive power exchange capability between the SMES and an alternating-current power system, power oscillation damping, the improving electrical energy quality, etc. The results show that the SMES system meets the design requirements and can maintain a long-term stable operation in a power system.