کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5001195 1460866 2017 8 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
The broadband frequency characteristics of major equipment in the ±800 kV converter station and their influences to the short-circuit fault transient
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
The broadband frequency characteristics of major equipment in the ±800 kV converter station and their influences to the short-circuit fault transient
چکیده انگلیسی


- Artificial short circuit experiment is conducted on an operating ±800 kV system.
- Broadband impedances and stray parameters of the major UHVDC equipment are measured.
- The wideband frequency transfer characteristics of converting system are investigated.

Due to the wide application of high-order resonant and nonlinear electric equipment in the UHVDC converter station, the electromagnetic transient process is a complex issue during the short-circuit fault transient of the system caused by lightning strike or other reasons. In this study, firstly, an operating ±800 kV DC line is artificially short-circuited to simulate the flashover fault process. The instantaneous voltages and currents and the electrical fields are measured by advanced sensors and high sampling rate recording devices at different points in the converter station, in order to comprehensively study the high-frequency characteristics of the UHVDC system. Then, the portal impedances of the major UHVDC equipment as well as the stray parameters are systematically measured in an actual ±800 kV station. Based on the data measured, the accurate high-frequency characteristics of the ±800 kV converter station are analyzed. The results of the study can be used to guide the EMC and relay protection designs of the UHVDC converter station, so that the stability of the system can be improved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 147, June 2017, Pages 302-309
نویسندگان
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