کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
703253 1460894 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Series arcing detection by algebraic derivative of the current
ترجمه فارسی عنوان
تشخیص مدار سری با مشتق جبری جریان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Algebraic derivative of the arc current.
• Arc ignition by carbonized path and opening circuit.
• Tests with different domestic loads.
• Detection method simple to parameter and easy to implement.

We present in this paper an algebraic derivative method of the line current in order to detect the presence of series arcs in an AC or DC electrical installation. The first derivative is computed from a limited Taylor-McLaurin series transposed in Laplace space. The temporal estimation is achieved by integration over a sliding window of the product of a particular polynomial with the instantaneous current. The discrete version can be synthesized by a simple FIR filter.The tests, with and without series arc, are conducted on experimental currents (3–12 A) measured on domestic loads (resistors, vacuum drill, dimmer). The sampling frequency is set to 1 MHz.Short integration times (50 μs in AC and 200 μs in DC) are sufficient to observe, with high contrast, the derivative peaks due to the arc ignition. The detection is then performed by comparing the derivation filter output to its instantaneous noise level. The response time is equal to the integration duration.This method, simple to set up and easy to implement, is ideally suited for installations that do not use load switching current.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 119, February 2015, Pages 91–99
نویسندگان
, , , ,