Investigation of severity of voltage flicker caused by second harmonic
Second harmonic produces asymmetrical waveform which leads to fluctuation of root-means-square (rms) value with certain frequency. Meanwhile, function of weighting filter in flickermeter is designed for sixth-order low-pass filtering function with frequency to be limited to 35 Hz, signal with freque...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Institution of Engineering and Technology
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/62216/1/Investigation%20of%20severity%20of%20voltage%20flicker%20caused%20by%20second%20harmonic.pdf |
| _version_ | 1796977593677774848 |
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| author | Goh, Zai Peng Mohd Radzi, Mohd Amran Hizam, Hashim Abdul Wahab, Noor Izzri |
| author_facet | Goh, Zai Peng Mohd Radzi, Mohd Amran Hizam, Hashim Abdul Wahab, Noor Izzri |
| author_sort | Goh, Zai Peng |
| collection | UPM |
| description | Second harmonic produces asymmetrical waveform which leads to fluctuation of root-means-square (rms) value with certain frequency. Meanwhile, function of weighting filter in flickermeter is designed for sixth-order low-pass filtering function with frequency to be limited to 35 Hz, signal with frequency ranging from 35 to 100 Hz, at certain gain, still can pass through. Since the second harmonic produces fluctuation of rms value with 50 Hz, there is high possibility that it can be passed by this filter and thus resulting in flicker detection. Therefore, this study points out a worthwhile research gap to justify that the presence of the second harmonic can directly increase severity of voltage flicker. In addition, further simulation work using semi-converter has been carried out, as one of main even harmonic sources, in order to justify the concept. To practically validate the concept, Fluke power analyser 435 series II and programmable alternative current source are utilised in the experimental setup. In the main finding, it is confirmed that severity of the voltage flicker increases directly with the presence of the second harmonic and it also formed a clear relationship between short-term perceptibility (Pst) and percentage of the second harmonic component. |
| first_indexed | 2024-03-06T09:42:21Z |
| format | Article |
| id | upm.eprints-62216 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:42:21Z |
| publishDate | 2017 |
| publisher | The Institution of Engineering and Technology |
| record_format | dspace |
| spelling | upm.eprints-622162019-04-22T08:58:59Z http://psasir.upm.edu.my/id/eprint/62216/ Investigation of severity of voltage flicker caused by second harmonic Goh, Zai Peng Mohd Radzi, Mohd Amran Hizam, Hashim Abdul Wahab, Noor Izzri Second harmonic produces asymmetrical waveform which leads to fluctuation of root-means-square (rms) value with certain frequency. Meanwhile, function of weighting filter in flickermeter is designed for sixth-order low-pass filtering function with frequency to be limited to 35 Hz, signal with frequency ranging from 35 to 100 Hz, at certain gain, still can pass through. Since the second harmonic produces fluctuation of rms value with 50 Hz, there is high possibility that it can be passed by this filter and thus resulting in flicker detection. Therefore, this study points out a worthwhile research gap to justify that the presence of the second harmonic can directly increase severity of voltage flicker. In addition, further simulation work using semi-converter has been carried out, as one of main even harmonic sources, in order to justify the concept. To practically validate the concept, Fluke power analyser 435 series II and programmable alternative current source are utilised in the experimental setup. In the main finding, it is confirmed that severity of the voltage flicker increases directly with the presence of the second harmonic and it also formed a clear relationship between short-term perceptibility (Pst) and percentage of the second harmonic component. The Institution of Engineering and Technology 2017-05 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/62216/1/Investigation%20of%20severity%20of%20voltage%20flicker%20caused%20by%20second%20harmonic.pdf Goh, Zai Peng and Mohd Radzi, Mohd Amran and Hizam, Hashim and Abdul Wahab, Noor Izzri (2017) Investigation of severity of voltage flicker caused by second harmonic. IET Science Measurement & Technology, 11 (3). pp. 363-370. ISSN 1751-8822; ESSN: 1751-8830 https://ieeexplore.ieee.org/document/7929474 10.1049/iet-smt.2016.0369 |
| spellingShingle | Goh, Zai Peng Mohd Radzi, Mohd Amran Hizam, Hashim Abdul Wahab, Noor Izzri Investigation of severity of voltage flicker caused by second harmonic |
| title | Investigation of severity of voltage flicker caused by second harmonic |
| title_full | Investigation of severity of voltage flicker caused by second harmonic |
| title_fullStr | Investigation of severity of voltage flicker caused by second harmonic |
| title_full_unstemmed | Investigation of severity of voltage flicker caused by second harmonic |
| title_short | Investigation of severity of voltage flicker caused by second harmonic |
| title_sort | investigation of severity of voltage flicker caused by second harmonic |
| url | http://psasir.upm.edu.my/id/eprint/62216/1/Investigation%20of%20severity%20of%20voltage%20flicker%20caused%20by%20second%20harmonic.pdf |
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