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发明公开
CN106125721A 直流控制保护系统硬件开关量输入信息处理方法及装置 无效 - 驳回

直流控制保护系统硬件开关量输入信息处理方法及装置
摘要：
本发明涉及一种直流控制保护系统硬件开关量输入信息处理方法及装置，属于高压直流输电控制保护技术领域。本发明通过对直流控制保护系统信号源进行监测，当信号源故障时，提取信号源故障时设定周期前的开关输入信号作为该直流控制保护系统当前的开关量输入信号，使直流控制保护系统使用的硬件开关量输入信号为故障前信息，使直流控制保护系统对于开关量输入信号有了一个更全面准确的判断。因此本发明能够有效避免直流控制保护系统由于信号源故障引起硬件开关量输入信息不准确，进而导致直流控制保护系统错误响应。提高直流控制保护系统的可靠性。
摘要（英）：

The invention relates to a hardware on-off input information processing method and device for a DC protection control protection system, and belongs to the technical field of high-voltage DC power transmission control protection. Through the monitoring of a signal source of a DC control protection system, the method extracts an on-off input signal before a set period as a current on-off input signal of the DC control protection system when the signal source has a fault, enables the on-off input signal of hardware employed by the DC control protection system to serve as pre-fault information, and enables the DC control protection system to make a more complete and accurate judgment of the on-off input signal. Therefore, the method can effectively prevent the inaccurate hardware on-off input information caused by the fault of the signal source from causing the wrong response of the DC control protection system. The method improves the reliability of the DC control protection system.

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