Laddered multilevel inverters used in solar panel system
Solar energy is the primary source of renewable energy in all over the world. The photovoltaic cells can convert the solar energy directly into DC. For the large photovoltaic systems which are connected with the grid, they need inverters to convert the direct current to alternative current.In the pr...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/10356/49554 |
| _version_ | 1824455288493703168 |
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| author | Chen, Junyan |
| author2 | Luo Fang Lin |
| author_facet | Luo Fang Lin Chen, Junyan |
| author_sort | Chen, Junyan |
| collection | NTU |
| description | Solar energy is the primary source of renewable energy in all over the world. The photovoltaic cells can convert the solar energy directly into DC. For the large photovoltaic systems which are connected with the grid, they need inverters to convert the direct current to alternative current.In the project new kinds of multilevel inverters were introduced – laddered inverters. Laddered inverters can handle the task successfully and have several advantages over the conventional inverters. Similar to the multilevel inverters like diode-clamped inverters, the laddered inverters can output a waveform that contains various voltage levels.Seven kinds of laddered inverters and their topologies are discussed in the project. And a simple contrast is made between the laddered inverters and the multilevel inverters like diode-clamped inverters. Simulations are achieved by the software – PSIM 8.0. The output waveform can be easily observed and the harmonic contents are illustrated by using the Fast Fourier Transform (FFT). To get the least total harmonic distortion, Matlab software is used to calculate the best firing angles. |
| first_indexed | 2025-02-19T03:35:50Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/49554 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:35:50Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/495542023-07-07T15:57:10Z Laddered multilevel inverters used in solar panel system Chen, Junyan Luo Fang Lin School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Power electronics Solar energy is the primary source of renewable energy in all over the world. The photovoltaic cells can convert the solar energy directly into DC. For the large photovoltaic systems which are connected with the grid, they need inverters to convert the direct current to alternative current.In the project new kinds of multilevel inverters were introduced – laddered inverters. Laddered inverters can handle the task successfully and have several advantages over the conventional inverters. Similar to the multilevel inverters like diode-clamped inverters, the laddered inverters can output a waveform that contains various voltage levels.Seven kinds of laddered inverters and their topologies are discussed in the project. And a simple contrast is made between the laddered inverters and the multilevel inverters like diode-clamped inverters. Simulations are achieved by the software – PSIM 8.0. The output waveform can be easily observed and the harmonic contents are illustrated by using the Fast Fourier Transform (FFT). To get the least total harmonic distortion, Matlab software is used to calculate the best firing angles. Bachelor of Engineering 2012-05-22T01:11:14Z 2012-05-22T01:11:14Z 2012 2012 Final Year Project (FYP) http://hdl.handle.net/10356/49554 en Nanyang Technological University 86 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Power electronics Chen, Junyan Laddered multilevel inverters used in solar panel system |
| title | Laddered multilevel inverters used in solar panel system |
| title_full | Laddered multilevel inverters used in solar panel system |
| title_fullStr | Laddered multilevel inverters used in solar panel system |
| title_full_unstemmed | Laddered multilevel inverters used in solar panel system |
| title_short | Laddered multilevel inverters used in solar panel system |
| title_sort | laddered multilevel inverters used in solar panel system |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Power electronics |
| url | http://hdl.handle.net/10356/49554 |
| work_keys_str_mv | AT chenjunyan ladderedmultilevelinvertersusedinsolarpanelsystem |