نوع مقاله : علمی-پژوهشی
نویسندگان
دانشگاه صنعتی شاهرود
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Superconducting cables have been considered due to their advantages in overcoming the limitations of conventional cables. However, the transient behavior of high-temperature superconducting cables under fault conditions in the presence of distributed generation sources poses challenges for design and protection. In this paper, the evaluation of the cable operating mode in steady and transient states under the influence of changing fault type, fault resistance, network impedance, and distributed generation location has been investigated as the main objective. The electrothermal performance of a three-phase coaxial superconducting cable, with a nominal voltage of 22.9 kV and an operating current of 1 kA at an operating temperature of 70 K, was evaluated in a distribution network including distributed wind turbine generation. The cable response to fault scenarios was investigated by varying parameters such as fault type and resistance, network impedance, and distributed generation location. The input current to the cable, resistance, and temperature of the superconducting layer were analyzed as performance components affected by the aforementioned parameters. Based on the input current, the operating mode limits the performance of the cable due to thermal and electromagnetic conditions. The results showed that changing the fault resistance from 0.01 to 10 Ω reduces the input current by 84%. As a result of these conditions, the operating mode of the cable changes to the flux-flow mode. In addition, increasing the line length reduces the input current and pushes the cable towards the quemch mode.
کلیدواژهها [English]
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