基于智能变电站交直流一体化电源系统研究

Research on AC/DC Integrated Power System Based on Intelligent Substation

交直流电源智能化运行是通过整合交、直流电源实现的,为供电用电的一体化提供了解决方案,能有效地提高运行的稳定安全性,从而提高了变电站电源管理能力。而交直流一体化电源系统具有集成度高、管理简便等优势,可集中监控和管理多套电源系统,提高了多套站用电源系统蓄电池组的共享性,随着交直流一体化电源系统方案的广泛应用,其所存在的问题急需从根本上进行解决(包括标准化程度不高、各品牌间的兼容性差等)。为确保变电站的可靠运行,提出全模块化电源系统方案,以期提高维护效率并降低维护成本,为提高交直流一体化电源系统的标准化程度提供参考。

The intelligent operation of AC and DC power supply is realized by integrating AC and DC power supplies, which provides a solution for the integration of power supply and electricity, effectively improves the stability and safety of operation, and thus improves the power management capability of the substation. The AC/DC integrated power supply system has the advantages of high integration and simple management, which can centrally monitor and manage multiple sets of power supply systems, and improve the sharing of battery packs of multiple sets of power supply systems. With the wide application of the AC/DC integrated power system scheme, its problems urgently need to be fundamentally solved(including the degree of standardization, poor compatibility between brands, etc.). In order to ensure the reliable operation of the substation, this paper proposes a fully modular power system scheme to improve maintenance efficiency and reduce maintenance costs, and provide reference for improving the standardization degree of AC/DC integrated power system.