【摘要】 设计了一种基于DSP的低压智能脱扣器。以DSP为核心,对电信号进行采集、放大及隔离,在快速傅里叶变换中使用窗函数插值技术解决频谱泄漏,实现电参数测量、过流保护、在线检测和远程通信等功能,给出了智能脱扣器的硬件和软件设计,并详细阐述了关断算法。实践证明,该脱扣器精度和可靠性高。更多还原

【Abstract】 A low voltage intelligent releaser based on DSP was designed. Taking DSP as core, collecting, amplifving and insulating the electrical signal, applying window function and interpolation in frequency domain in fast Fourier transform to solve spectrum leakage, the functions of electrical parameters, overcurrent protection, online detection and telecommunication were realized. The hardware and software design was given and trip algorithm was expounded in detail. The practice proves that the releaser has high precision and reliability.更多还原