کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
703784 1460908 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single phase angle tracking method for power switches gating synchronization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Single phase angle tracking method for power switches gating synchronization
چکیده انگلیسی


• Synchronizing pulse generation via PWM arctangent method and digital differentiation.
• Validation of the scheme through several single-phase low frequency grid variations.
• Microcontroller used for testing the method with two-sample processing time after filtering.
• IIR used for avoiding harmonic disturbance.

This paper proposes a novel method for generating the pulses needed to fire power electronic switches that can be used for single-phase power converters. Simple operations based on the three-phase arctangent method are used within a digital signal controller or microcontroller to generate a sawtooth carrier signal phi, with an amplitude of 2pi and concurrent to the period of time of the sinusoidal input. With this signal and using standard Pulse Width Modulation techniques, gating is obtained directly. Two orthogonal signals are the basis of the arctangent method of synchronization; these signals are obtained by numerical differentiation, and normalized using frequency of the same amplitude. This strategy shortens the time consumed. The synchronizing method proposed is validated through MATLAB simulations, and used with several single-phase grid variations, such as sag, swell, flicker, frequency or phase jump. Infinite impulse response (IIR) Butterworth filter is added to take into consideration harmonic contamination on the grid. Experimental results of gating signals are presented to show the proposal's feasibility.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 105, December 2013, Pages 88–94
نویسندگان
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