Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN
Due to strong volatility and intermittent characteristics, the fluctuations of the photovoltaic (PV) output is inevitable which cause negative impacts on power system operation. However, such an issue can be resolved in a combined cascade hydro-PV-pumped storage (CH-PV-PS) generation system through...
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| Format: | Article |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8918489/ |
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| author | Lei Chen Jun Wang Zhang Sun Tao Huang Fan Wu |
| author_facet | Lei Chen Jun Wang Zhang Sun Tao Huang Fan Wu |
| author_sort | Lei Chen |
| collection | DOAJ |
| description | Due to strong volatility and intermittent characteristics, the fluctuations of the photovoltaic (PV) output is inevitable which cause negative impacts on power system operation. However, such an issue can be resolved in a combined cascade hydro-PV-pumped storage (CH-PV-PS) generation system through an appropriate control. Based on the optimal base power of variable-speed pumped storage station (VSPSS), a smoothing method of fuzzy complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is proposed in this paper. To prevent smoothing insufficient and excessive, the fuzzy CEEMDAN algorithm is used to obtain the target power of the photovoltaic-pumped storage (PV-PS) generation system and the control signal of cascade hydro stations (CHSs) for eliminating large amplitude fluctuations of the PV output. Furthermore, in order to overcome the drawback that too frequent conversion of unit operating mode would reduce the service life and smoothing effect of the VSPSS unit, the optimization model of the base power of the VSPSS is established and solved by the grid adaptive direct search method (MADS) to obtain the control signal of the VSPSS for suppressing the short-term fluctuations of the PV output. Finally, the performance of the method is evaluated through using the PV station data in Xiaojin County, Sichuan province, China. The simulation results reveal that compared with the fixed base power smoothing method, this method can effectively suppress the PV power fluctuations and improve the smoothing effect and energy efficiency. |
| format | Article |
| id | doaj-art-56c7387844b34093a5bc867ac86b64a4 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-56c7387844b34093a5bc867ac86b64a42025-01-30T00:00:54ZengIEEEIEEE Access2169-35362019-01-01717271817272710.1109/ACCESS.2019.29555698918489Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDANLei Chen0https://orcid.org/0000-0002-5392-4472Jun Wang1https://orcid.org/0000-0001-8519-1093Zhang Sun2https://orcid.org/0000-0003-3176-6351Tao Huang3https://orcid.org/0000-0002-5504-7848Fan Wu4https://orcid.org/0000-0002-3514-9206School of Electrical Engineering and Electronic Information, Xihua University, Chengdu, ChinaSchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu, ChinaSchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu, ChinaDepartment of Energy, Politecnico di Torino, Turino, ItalySchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu, ChinaDue to strong volatility and intermittent characteristics, the fluctuations of the photovoltaic (PV) output is inevitable which cause negative impacts on power system operation. However, such an issue can be resolved in a combined cascade hydro-PV-pumped storage (CH-PV-PS) generation system through an appropriate control. Based on the optimal base power of variable-speed pumped storage station (VSPSS), a smoothing method of fuzzy complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is proposed in this paper. To prevent smoothing insufficient and excessive, the fuzzy CEEMDAN algorithm is used to obtain the target power of the photovoltaic-pumped storage (PV-PS) generation system and the control signal of cascade hydro stations (CHSs) for eliminating large amplitude fluctuations of the PV output. Furthermore, in order to overcome the drawback that too frequent conversion of unit operating mode would reduce the service life and smoothing effect of the VSPSS unit, the optimization model of the base power of the VSPSS is established and solved by the grid adaptive direct search method (MADS) to obtain the control signal of the VSPSS for suppressing the short-term fluctuations of the PV output. Finally, the performance of the method is evaluated through using the PV station data in Xiaojin County, Sichuan province, China. The simulation results reveal that compared with the fixed base power smoothing method, this method can effectively suppress the PV power fluctuations and improve the smoothing effect and energy efficiency.https://ieeexplore.ieee.org/document/8918489/Cascade hydro stationsPV smoothingpower fluctuationsvariable-speed pumped storage station |
| spellingShingle | Lei Chen Jun Wang Zhang Sun Tao Huang Fan Wu Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN IEEE Access Cascade hydro stations PV smoothing power fluctuations variable-speed pumped storage station |
| title | Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN |
| title_full | Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN |
| title_fullStr | Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN |
| title_full_unstemmed | Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN |
| title_short | Smoothing Photovoltaic Power Fluctuations for Cascade Hydro-PV-Pumped Storage Generation System Based on a Fuzzy CEEMDAN |
| title_sort | smoothing photovoltaic power fluctuations for cascade hydro pv pumped storage generation system based on a fuzzy ceemdan |
| topic | Cascade hydro stations PV smoothing power fluctuations variable-speed pumped storage station |
| url | https://ieeexplore.ieee.org/document/8918489/ |
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