Grid-connected full digital monitoring system for controllable high-temperature superconducting magnetic energy storage (SMES) system

Abstract

The invention relates to a grid-connected full digital monitoring system for a controllable high-temperature superconducting magnetic energy storage (SMES) system. The grid-connected full digital monitoring system adopts a dual-processor form based on a microcontroller and a digital signal processor (DSP) to realize the monitoring on the high-temperature SMES system in a grid-connected operation mode. A full digital man-machine interaction interface can display an instantaneous operating parameter and operating conditions of a power grid, an SMES magnet and a power regulator, and can display various fault information on a liquid crystal terminal interface for fault location and removal when the SMES system is failed in the grid-connected process. The digital man-machine interaction interface has a control command touch key for field personnel to control, namely, the touch key can be touched to control the operating condition of the power regulator; and meanwhile, remote control of an upper computer is supported. The invention comprehensively takes the conditions of the SMES system, the power grid and the power regulator and a necessary safeguarding technology into consideration. The grid-connected visual monitoring system with a man-machine interaction function for the SMES system can effectively ensure safe operation for the SMES units.

Description

technical field [0001] The invention belongs to the technical field of superconducting power application, and relates to a fully digital grid-connected monitoring system based on the second-generation high-temperature superconductor superconducting energy storage system (SMES), in particular to a controllable high-temperature superconducting energy storage system grid-connected full digital surveillance system. Background technique [0002] The discovery of high-temperature superconducting materials in 1987 laid the foundation for the practical application of high-temperature superconductors. The low-temperature superconducting energy storage system is a relatively mature technology in the practical application of superconducting, but due to the high cost of refrigeration, it faces a bottleneck that cannot expand market applications. With the rapid development of high-temperature superconducting materials and modern power electronics technology, high-temperature superconduc...

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Problems solved by technology

However, the two scientific research projects of Huazhong University of Science and Technology and the Institute of Electrical Engineering of the Chinese Academy of Sciences mainly focus on the development of the monitoring system at the power system level or the status monitoring of the superconducting magnet body system. There is no research on the power conditioner, the intermediate link connecting the SMES and the power grid. Corresponding Monitoring Technology

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