The Influence of SMES Magnet Operation Parameters on Voltage Distribution Characteristic

The voltage distribution on the magnet of superconducting Magnetic Energy Storage (SMES) system are the result of the combined effect of system power demand, operation control of power condition system (PCS) and magnet parameters, which is a key issue that influence the stability and security of SMES magnet. This paper mainly focuses on the interaction between the different components and the influence factors on voltage distribution on the magnet. Firstly, the hybrid model which integrate the power system dynamics, the detailed device of PCS and the transient model of magnet is built. Then, from the perspective of power requirement of power system, operation mode and control strategy of PCS, the voltage distribution characteristics are comprehensively analyzed. Finally, the optimization design method of operation mode to reduce the unevenness of voltage distribution is proposed.