Full impedance distance protection method based on FPGA
A technology of distance protection and impedance protection, applied in the field of hardware algorithm implementation, which can solve the problems of poor reliability, low efficiency, and many starting components.
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[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0046] The invention relates to an FPGA-based full-impedance distance protection method, wherein the distance protection refers to the distance (or impedance) between the reaction fault point and the protection installation site. It is a protective device that determines the action time according to the distance. The main component of the device is a distance (impedance) relay, which can measure the impedance value between the protection installation and the short-circuit point according to the voltage and current applied to its terminals. This impedance is called the measured impedance of the relay. When the short-circuit point is close to the protection installation, the measurement impedance is small and the action time is short; when the short-circuit point is far away from the protection installation, the measuremen...
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