一体化的变电站电源系统

Integrative substation power supply system

通过高频开关电源的模块化技术、并联技术、提高开关频率技术等手段,优化结构,统一监控,将变电站电源多套设备集成在一套设备内。在直流操作电源中,因为合闸电力的减小,取消了降压装置;通信电源和逆变电源中,通过多模块并联提高可靠性,取消了蓄电池;形成了电源设备的一体化系统。电源设备一体化以后直接降低成本30%以上,提高电源系统的可靠性、可用性和可维护性。

With the new technologies of modularization,paralleling and high-switching frequency,multiple power supply equipments of substation are integrated into one device,which has optimized structure and is centrally monitored.As the switching current is reduced,the voltage-dropping device of DC power supply for operation is removed;as the reliability is improved by the paralleling of multiple modules,the batteries of power supply for communication and inverter are removed.The integrative solution for substation power supply system reduces directly the cost more than 30 % and enhances its reliability,availability and maintainability.