Presently, there exists a multitude of applications reliant on superconducting magnetic energy storage (SMES), categorized into two groups. The first pertains to power quality enhancement, while the second focuses on improving power system stability. Nonetheless, the integration of these dual functionalities into a singular apparatus poses a persistent challenge. Considering this, this paper proposes a multi-functional device based on SMES, encompassing both power quality enhancement and power system stability improvement capabilities. It incorporates power quality enhancement features such as current harmonic filtering, active power smoothing, reactive power compensation, and critical load protection, while also furnishing virtual inertia to bolster grid frequency. Simulation results validate the effectiveness of the proposed methodologies.

This paper is aimed at long-distance high-power laser wireless power transmission and researches the theory of laser atmospheric transmission to establish a physical model for calculating the laser power transmission characteristics in different atmospheres, which realizes the quantitative solution of laser power loss and beam quality degradation in the transmission process and simplifies the engineering calculations of laser atmospheric transmission characteristics. Based on the theoretical model, a laser atmospheric transmission simulation system is developed to comprehensively evaluate the laser radiate property and transmission process in complex atmospheric environments, which is of high value for the engineering design and system evaluation of laser wireless power transmission.