|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 3 van 8 gevonden artikelen
| Titel: |
Development of a new adaptive sigma-delta modulator scheme applied to multilevel inverter control |
| Auteur: |
Sanchez, Carlos Ibanez, Fernando Ceglia, Gerardo Guzman, Victor M. |
| Verschenen in: |
International journal of electronics |
| Paginering: | Jaargang 95 (2008) nr. 9 pagina's 973-987 |
| Jaar: |
2008-09 |
| Inhoud: |
Interest in multilevel inverters is increasing in recent years, especially in high voltage applications. Traditional pulse width modulation (PWM) techniques can be applied to control this type of switched converter. However, it is necessary to adapt these techniques to the particularities of multilevel operation. As an alternative, other modulation techniques, such as sigma-delta modulation (SDM) can be used. In this case, it is possible to use advanced modulation techniques, such as adaptive modulation, to adapt the SDM to the multilevel operation. This article presents a new adaptive sigma-delta modulator that controls a five levels multilevel inverter. The algorithm that generates the sigma-delta signal is implemented in a field-programmable gate array (FPGA). This allows a very fast operation independent of the overall control circuit operation response. In addition, the FPGA can generate the control signals necessary to drive the power semiconductors in the power stage. The resulting modulator is simpler than the PWM version. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 8 gevonden artikelen
| << vorige | volgende >> |