Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions
Indirect Matrix Converter (IMC) using two stages configuration is topologically more flexible than 3×3 Direct Matrix Converter (DMC). Due to the absence of passive components, the input and output terminals of matrix converters are coupled physically with the same instantaneous power. The output vol...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
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2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/97010 http://hdl.handle.net/10220/11729 |
| _version_ | 1826117945073336320 |
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| author | Liu, X. Wang, P. Blaabjerg, Frede Loh, Poh Chiang |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, X. Wang, P. Blaabjerg, Frede Loh, Poh Chiang |
| author_sort | Liu, X. |
| collection | NTU |
| description | Indirect Matrix Converter (IMC) using two stages configuration is topologically more flexible than 3×3 Direct Matrix Converter (DMC). Due to the absence of passive components, the input and output terminals of matrix converters are coupled physically with the same instantaneous power. The output voltages are decided by the input grid voltages whereas the input currents are drawn from the load currents. This paper presents a carrier-based modulation strategy for IMC under unbalanced grid voltage conditions to produce high quality balanced output voltages and sinusoidal input currents without low order harmonics. Step-by-step implementations for the modulation schemes are explained in detail, inclusive of sequence components detection of grid voltages, modulation for current source rectifier (CSR), variable slope triangle carrier generation, online fictitious dc-link voltage calculations and modulation strategy for voltage source inverter (VSI) with compensated dc-link voltage. Theoretical analysis and mathematical proof for balanced outputs and sinusoidal inputs are provided to show validities of the proposed method. The maximum input-to-output voltage transfer ratio is found to be less than 0.866 and is highly related to the unbalance ratio and phase angle difference between positive and negative sequence grid voltages. Simulation and experimental results are provided to validate the effectiveness of the modulation schemes for IMC. |
| first_indexed | 2024-10-01T04:35:39Z |
| format | Conference Paper |
| id | ntu-10356/97010 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:35:39Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/970102020-03-07T13:24:47Z Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions Liu, X. Wang, P. Blaabjerg, Frede Loh, Poh Chiang School of Electrical and Electronic Engineering International Power Electronics and Motion Control Conference and Exposition Europe Congress (15th : 2012 : Novi Sad, Serbia) DRNTU::Engineering::Electrical and electronic engineering Indirect Matrix Converter (IMC) using two stages configuration is topologically more flexible than 3×3 Direct Matrix Converter (DMC). Due to the absence of passive components, the input and output terminals of matrix converters are coupled physically with the same instantaneous power. The output voltages are decided by the input grid voltages whereas the input currents are drawn from the load currents. This paper presents a carrier-based modulation strategy for IMC under unbalanced grid voltage conditions to produce high quality balanced output voltages and sinusoidal input currents without low order harmonics. Step-by-step implementations for the modulation schemes are explained in detail, inclusive of sequence components detection of grid voltages, modulation for current source rectifier (CSR), variable slope triangle carrier generation, online fictitious dc-link voltage calculations and modulation strategy for voltage source inverter (VSI) with compensated dc-link voltage. Theoretical analysis and mathematical proof for balanced outputs and sinusoidal inputs are provided to show validities of the proposed method. The maximum input-to-output voltage transfer ratio is found to be less than 0.866 and is highly related to the unbalance ratio and phase angle difference between positive and negative sequence grid voltages. Simulation and experimental results are provided to validate the effectiveness of the modulation schemes for IMC. 2013-07-17T06:24:43Z 2019-12-06T19:37:52Z 2013-07-17T06:24:43Z 2019-12-06T19:37:52Z 2012 2012 Conference Paper Liu, X., Blaabjerg, F., Loh, P. C., & Wang, P. (2012). Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions. 2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), LS6a.2-1 - LS6a.2-7. https://hdl.handle.net/10356/97010 http://hdl.handle.net/10220/11729 10.1109/EPEPEMC.2012.6397486 en © 2012 IEEE. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Liu, X. Wang, P. Blaabjerg, Frede Loh, Poh Chiang Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title | Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title_full | Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title_fullStr | Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title_full_unstemmed | Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title_short | Carrier-based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| title_sort | carrier based modulation strategy and its implementation for indirect matrix converter under unbalanced grid voltage conditions |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/97010 http://hdl.handle.net/10220/11729 |
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