Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System
This paper proposes a variable DC-link reference voltage algorithm for wide range of maximum power point tracking (MPPT) for two-string photovoltaic (PV) systems. A multi-string system, which is a kind of PV system, is widely used due to its many merits (such as the ability to use low rating devices...
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/6/1/58 |
| _version_ | 1818036445435133952 |
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| author | Kyo Beum Lee June-Seok Lee |
| author_facet | Kyo Beum Lee June-Seok Lee |
| author_sort | Kyo Beum Lee |
| collection | DOAJ |
| description | This paper proposes a variable DC-link reference voltage algorithm for wide range of maximum power point tracking (MPPT) for two-string photovoltaic (PV) systems. A multi-string system, which is a kind of PV system, is widely used due to its many merits (such as the ability to use low rating devices, high MPPT efficiency, and so forth). PV systems can choose their input voltages on the basis of their PV cell connection structure. The PV cell connection structure can be restricted because the input voltage and current affect the PV system design. This reduces the MPPT range under some weather conditions. In the restricted PV connection structure, this algorithm enlarges the MPPT range and minimizes the increment of the total harmonic distortion (THD) by selecting the appropriate DC-link voltage reference which is changed by comparing the sorted input voltage. To verify the proposed algorithm, simulation and experiments are conducted to show the results of the performance for the proposed algorithm. |
| first_indexed | 2024-12-10T07:11:04Z |
| format | Article |
| id | doaj.art-65c9288521884bad84b72f72e26e859f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-12-10T07:11:04Z |
| publishDate | 2013-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-65c9288521884bad84b72f72e26e859f2022-12-22T01:58:04ZengMDPI AGEnergies1996-10732013-01-0161587810.3390/en6010058Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV SystemKyo Beum LeeJune-Seok LeeThis paper proposes a variable DC-link reference voltage algorithm for wide range of maximum power point tracking (MPPT) for two-string photovoltaic (PV) systems. A multi-string system, which is a kind of PV system, is widely used due to its many merits (such as the ability to use low rating devices, high MPPT efficiency, and so forth). PV systems can choose their input voltages on the basis of their PV cell connection structure. The PV cell connection structure can be restricted because the input voltage and current affect the PV system design. This reduces the MPPT range under some weather conditions. In the restricted PV connection structure, this algorithm enlarges the MPPT range and minimizes the increment of the total harmonic distortion (THD) by selecting the appropriate DC-link voltage reference which is changed by comparing the sorted input voltage. To verify the proposed algorithm, simulation and experiments are conducted to show the results of the performance for the proposed algorithm.http://www.mdpi.com/1996-1073/6/1/58multi stringPV systemMPPT |
| spellingShingle | Kyo Beum Lee June-Seok Lee Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System Energies multi string PV system MPPT |
| title | Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System |
| title_full | Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System |
| title_fullStr | Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System |
| title_full_unstemmed | Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System |
| title_short | Variable DC-Link Voltage Algorithm with a Wide Range of Maximum Power Point Tracking for a Two-String PV System |
| title_sort | variable dc link voltage algorithm with a wide range of maximum power point tracking for a two string pv system |
| topic | multi string PV system MPPT |
| url | http://www.mdpi.com/1996-1073/6/1/58 |
| work_keys_str_mv | AT kyobeumlee variabledclinkvoltagealgorithmwithawiderangeofmaximumpowerpointtrackingforatwostringpvsystem AT juneseoklee variabledclinkvoltagealgorithmwithawiderangeofmaximumpowerpointtrackingforatwostringpvsystem |