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Study on the Detection Method of Voltage Sag Based on DSP

Author: YangChangDa
Tutor: YanXiangWu
School: North China Electric Power University (Hebei)
Course: Theory and New
Keywords: Voltage dips Detection methods Lag unit Digital Signal Processor CCS
CLC: TM714.2
Type: Master's thesis
Year: 2010
Downloads: 60
Quote: 0
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Abstract


With the development of modern science and technology , all kinds of sensitive electrical equipment has been widely used , and the main reason is believed to affect the normal , safe operation of these electrical equipment voltage sag . This article analyzes the detecting method of the existing voltage dips , on this basis , according to the sinusoidal periodic signal waveform reproducibility characterized proposed a before and after the period corresponds to the instantaneous value of the continuous comparison of the method . For the method in zero crossings vulnerable to the impact of factors such as noise and sampling error added lag unit , and simulation results show that this method can rapidly and accurately detect dips characteristic quantities . Experiments , complete debugging and algorithm of signal acquisition card program , and in real-time and accuracy of the detection method is validated in a variety of circumstances .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Load analysis > Voltage regulation
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