论文部分内容阅读
探讨了用数字信号处理器 (DSP)芯片独立实现保护功能时如何选择判据实现形式。以距离保护中的多边形阻抗动作特性为例 ,分析了该特性用比相式、比幅式以及直接比较式 3种判据分别实现时DSP的运算复杂度。指出 :虽然硬件的发展为保护算法实现和选择提供了更高的冗余度 ,但仍然应当通过对算法实现形式的良好设计来减少对资源的不必要占用 ,最大限度地发挥硬件的效能 ,提高装置的总体可靠性水平。
This paper discusses how to choose the form of the criterion when using the digital signal processor (DSP) chip to realize the protection function independently. Taking the behavior of polygon impedance in distance protection as an example, the computational complexity of DSP when the characteristic is compared with the three criteria of ratio, amplitude and direct comparison is analyzed respectively. It is pointed out that although the development of hardware provides more redundancy for the implementation and selection of protection algorithms, it is still necessary to reduce the unnecessary occupancy of resources through better design of the algorithm implementation form, maximize the efficiency of hardware and improve The overall level of reliability of the device.