【摘要】 超/特高压直流输电工程中换流器控制是整个二次控制保护系统的核心,为避免由于控制保护设备的系统切换时间超出阀基电子设备的技术要求,从而可能引起丢脉冲、换相失败等影响系统稳定运行的情况发生。通过对控制保护设备和阀基电子设备之间接口信号的各种技术指标要求进行研究,并对控制保护设备的结构和判断逻辑进行合理设计,提出一种实现控制保护设备快速系统切换的解决方案,可以将系统切换时间控制在合理范围内。该方案目前已成功应用于多个直流输电工程,并取得了良好的效果。更多还原

【Abstract】 HVDC or UHVDC transmission project in converter control is the core of the control & protection system. In order to avoid the switching time of the control & protection redundant equipment beyond the technical requirements of the valve base electronics equipment, which may cause lost pulse and commutation failure, affect the stable system operation. This paper researched the control & protection equipment and the valve base electronics equipment interface signals between various technical indicators, and reasonably designed the structure of the control & protection device and the judgment logic. This paper proposed a fast switching system solution, system switching time can be controlled in a reasonable range. The solution has been successfully applied to several HVDC transmission projects, and obtained the good effect.更多还原