AC/DC/AC Z-source inverter
The main thrust in wind energy conversion system (WECS) is to maintain a constant voltage at the output in spite of variation in wind velocity from the wind turbine. The Z-source inverter has been identified to exhibit both voltage buck-and boost-capabilities in steady-state. It employs a unique imp...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2010
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| Online Access: | http://hdl.handle.net/10356/40914 |
| _version_ | 1826119256326012928 |
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| author | Tan, Eugene Hong Xiang. |
| author2 | Luo Fang Lin |
| author_facet | Luo Fang Lin Tan, Eugene Hong Xiang. |
| author_sort | Tan, Eugene Hong Xiang. |
| collection | NTU |
| description | The main thrust in wind energy conversion system (WECS) is to maintain a constant voltage at the output in spite of variation in wind velocity from the wind turbine. The Z-source inverter has been identified to exhibit both voltage buck-and boost-capabilities in steady-state. It employs a unique impedance network included between the DC power source and converter circuit. The power conversion efficiency of Z-source inverter is appreciably improved because of the traditional three-stage conversion system, consisting of rectifier, boost chopper and inverter, replaced by a two stage conversion systems comprising of rectifier and Z-source inverter. All the traditional pulse width-modulation (PWM) schemes can be used to control the Z-source inverter. When the DC voltage is high enough to generate the desired ac output voltage, normal PWM (pulse width modulation) is used. While the DC voltage is not enough to directly generate a desired output voltage, a modified PWM with shoot-through zero states is employed to boost the voltage. |
| first_indexed | 2024-10-01T04:56:55Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/40914 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:56:55Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/409142023-07-07T16:00:45Z AC/DC/AC Z-source inverter Tan, Eugene Hong Xiang. Luo Fang Lin School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits The main thrust in wind energy conversion system (WECS) is to maintain a constant voltage at the output in spite of variation in wind velocity from the wind turbine. The Z-source inverter has been identified to exhibit both voltage buck-and boost-capabilities in steady-state. It employs a unique impedance network included between the DC power source and converter circuit. The power conversion efficiency of Z-source inverter is appreciably improved because of the traditional three-stage conversion system, consisting of rectifier, boost chopper and inverter, replaced by a two stage conversion systems comprising of rectifier and Z-source inverter. All the traditional pulse width-modulation (PWM) schemes can be used to control the Z-source inverter. When the DC voltage is high enough to generate the desired ac output voltage, normal PWM (pulse width modulation) is used. While the DC voltage is not enough to directly generate a desired output voltage, a modified PWM with shoot-through zero states is employed to boost the voltage. Bachelor of Engineering 2010-06-24T02:13:26Z 2010-06-24T02:13:26Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/40914 en Nanyang Technological University 90 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Tan, Eugene Hong Xiang. AC/DC/AC Z-source inverter |
| title | AC/DC/AC Z-source inverter |
| title_full | AC/DC/AC Z-source inverter |
| title_fullStr | AC/DC/AC Z-source inverter |
| title_full_unstemmed | AC/DC/AC Z-source inverter |
| title_short | AC/DC/AC Z-source inverter |
| title_sort | ac dc ac z source inverter |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits |
| url | http://hdl.handle.net/10356/40914 |
| work_keys_str_mv | AT taneugenehongxiang acdcaczsourceinverter |