Resumen
A new predictive strategy for current control of a three-phase neutral point clamped inverter is presented. It is based on a discrete-time model of the system, used to predict future values of the load current and voltage of the capacitors in the DC-link, for each possible switching state generated by the inverter. The state that minimizes a given quality function "g" is selected to be applied during the next sampling interval. Several compositions of g are proposed, including terms dedicated to achieve reference tracking, balance in the DC-link and reduction of the switching frequency. The algorithm uses the redundancy of switching states, typical of a three-level inverter, by means of a simple strategy. In comparison with classic PWM current control, the strategy presents a remarkable performance. The proposed method achieves comparable reference tracking with lower switching frequency per semiconductor and a slightly improved transitory behavior. It requires a greater sampling frequency, which should not be a problem, considering the present technologies available in digital signal processors. The main advantage of the method is that it does not require any kind of linear controller or modulation technique, achieving a different approach to control a power converter.
| Idioma original | English |
|---|---|
| Título de la publicación alojada | 36th IEEE Power Electronics Specialists Conference 2005 |
| Páginas | 1364-1369 |
| Número de páginas | 6 |
| Volumen | 2005 |
| DOI | |
| Estado | Published - 2005 |
Huella dactilar
ASJC Scopus subject areas
- Modelling and Simulation
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Predictive control of a three-phase neutral point clamped inverter. / Rodríguez, J.; Pontt, J.; Cortés, P.; Vargas, R.
36th IEEE Power Electronics Specialists Conference 2005. Vol. 2005 2005. p. 1364-1369 1581807.Resultado de la investigación: Conference contribution
TY - GEN
T1 - Predictive control of a three-phase neutral point clamped inverter
AU - Rodríguez, J.
AU - Pontt, J.
AU - Cortés, P.
AU - Vargas, R.
PY - 2005
Y1 - 2005
N2 - A new predictive strategy for current control of a three-phase neutral point clamped inverter is presented. It is based on a discrete-time model of the system, used to predict future values of the load current and voltage of the capacitors in the DC-link, for each possible switching state generated by the inverter. The state that minimizes a given quality function "g" is selected to be applied during the next sampling interval. Several compositions of g are proposed, including terms dedicated to achieve reference tracking, balance in the DC-link and reduction of the switching frequency. The algorithm uses the redundancy of switching states, typical of a three-level inverter, by means of a simple strategy. In comparison with classic PWM current control, the strategy presents a remarkable performance. The proposed method achieves comparable reference tracking with lower switching frequency per semiconductor and a slightly improved transitory behavior. It requires a greater sampling frequency, which should not be a problem, considering the present technologies available in digital signal processors. The main advantage of the method is that it does not require any kind of linear controller or modulation technique, achieving a different approach to control a power converter.
AB - A new predictive strategy for current control of a three-phase neutral point clamped inverter is presented. It is based on a discrete-time model of the system, used to predict future values of the load current and voltage of the capacitors in the DC-link, for each possible switching state generated by the inverter. The state that minimizes a given quality function "g" is selected to be applied during the next sampling interval. Several compositions of g are proposed, including terms dedicated to achieve reference tracking, balance in the DC-link and reduction of the switching frequency. The algorithm uses the redundancy of switching states, typical of a three-level inverter, by means of a simple strategy. In comparison with classic PWM current control, the strategy presents a remarkable performance. The proposed method achieves comparable reference tracking with lower switching frequency per semiconductor and a slightly improved transitory behavior. It requires a greater sampling frequency, which should not be a problem, considering the present technologies available in digital signal processors. The main advantage of the method is that it does not require any kind of linear controller or modulation technique, achieving a different approach to control a power converter.
UR - http://www.scopus.com/inward/record.url?scp=33847762187&partnerID=8YFLogxK
U2 - 10.1109/PESC.2005.1581807
DO - 10.1109/PESC.2005.1581807
M3 - Conference contribution
AN - SCOPUS:33847762187
SN - 0780390334
SN - 9780780390331
VL - 2005
SP - 1364
EP - 1369
BT - 36th IEEE Power Electronics Specialists Conference 2005
ER -