GIẢI PHÁP GIÁM SÁT TRỰC TUYẾN NHIỆT ĐỘ MỐI NỐI CÁP TRUNG ÁP=TEMPERATURE MONITORING SOLUTION FOR MEDIUM VOLTAGE CABLE JOINT

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Tác giả: Mai Quyền2 Hoàng, Thị Thu Nga1 Vũ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ Năng lượng, 2024

Mô tả vật lý: tr.91

Bộ sưu tập: Metadata

ID: 485970

Thêm vào giỏ

Cáp điện là thành phần quan trọng trong mạng lưới truyền tải điện của hệ thống điện. Đối với cáp, độ tin cậy của các mối nối cáp là rất quan trọng bởi mối nối cáp điện là khu vực thường xuyên xảy ra các sự cố trong hệ thống cáp ngầm. Nguyên nhân gây ra lỗi mối nối cáp có thể được xác định thông qua giám sát tại chỗ các thông số điện và nhiệt. Giám sát nhiệt độ thời gian thực của mối nối cáp điện có thể phát hiện ra mối nối quá nóng để từ đó có thể đánh giá mức độ lão hóa của lớp cách điện, do vậy các sự cố tiềm ẩn về an toàn của cáp sẽ được phát hiện sớm và loại bỏ kịp thời. Trong bài báo này, hệ thống giám sát và cảnh báo nhiệt độ của mối nối cáp điện được thiết kế trên cơ sở đáp ứng nguyên tắc thiết kế và thành phần cấu trúc của mối nối cáp điện. Phương pháp giám sát nhiệt độ theo thời gian thực đã được đề xuất phát triển. Hệ thống giám sát nhiệt độ bao gồm các cảm biến nhiệt độ đặt bên ngoài vỏ mối nối cáp điện, bộ thu thập dữ liệu, truyền dữ liệu dựa trên phương pháp truyền dữ liệu từ xa và phần mềm phân tích dữ liệu. Hệ thống đo nhiệt độ có ưu điểm là độ tin cậy cao, theo thời gian thực và độ chính xác cao.Power cable is an important component in transmission line of the power network. For cables, the reliability of cable joints is crucial as cable joints are areas where faults frequently occur in underground cable systems. The causes of cable joint failure can be identified through in-field monitoring of their electrical and temperature parameters. Real-time temperature monitoring of electrical cable joints can detect overheating of joints so that insulation aging can be assessed, thereby potential cable safety problems are detected early and promptly removed. In this paper, the temperature monitoring and warning system of the power cable joint are designed based on the design principle and structural composition of the power cable joint. A real-time temperature monitoring method has been proposed for development. The temperature monitoring system includes temperature sensors located outside the electrical cable joint, data collection, data transmission based on remote data transmission method and data analysis software. The temperature measurement system has the advantages of high reliability, real-time and high accuracy.

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