Line Protection Operate Time: How Fast Shall It Be?
نویسندگان
چکیده
An ultra-high-speed protective relay has been an important topic within the scientific community, and specifically power industry, for decades. The main drivers are anticipated improvements in system stability transfer capability which have become even more with increased penetration of renewable generation sources. operate time is a relatively small part required improvement, since circuit breaker interrupting contributes major total fault clearing time. first promising results reducing time, from two or three cycles, down to one cycle, date back 1976 when 1.5 ms was achieved. Availability sub-cycle breakers early 1980-s. Nevertheless, almost forty years later, commercially viable 3/4 cycle still not available their impact on omitted most literature. numerical relays improvement only goal wrongly equalized directly correlated stability. In this paper real benefits analyzed, considering characteristics state-of-the-art 1.5-2 cycles (older slower). A holistic view, including interactions between breakers, as well final utilities, given paper.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3081993