Feed-Forward Technique to Emulate Natural Sampling Method for Cascaded H-Bridge Converters
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- IECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society, 2023, 00, pp. 1-7
- Issue Date:
- 2023-11-16
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Feed-Forward_Technique_to_Emulate_Natural_Sampling_Method_for_Cascaded_H-Bridge_Converters.pdf | Published version | 2.98 MB |
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Phase shifted pulse width modulation PS PWM is one of the preferred modulation strategies for cascaded H bridge CHB converters due to its excellent harmonic performance Nevertheless this modulation strategy needs a fast sampling frequency which can increase with the number of H bridge sub modules SMs Moreover the advantages related to the harmonic content of the output voltages are usually lost for applications that require unbalanced operation conditions regarding SM power or voltage references such as solar PV or battery energy storage systems This work proposes a feed forward compensation technique that reduces the sampling frequency to two times the carrier frequency while maintaining the good harmonic performance of the CHB output voltages Simulation results are carried out to compare and demonstrate the superior performance of the proposed technique
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