Capacitors Voltage Balancing in Neutral-Point Clamped Inverter Using Simplified Finite Set Model Predictive Control and Virtual Voltage Vectors

Saeed Lotfollahzadegan, S. Alireza Davari, Cristian Garcia, Jose Rodriguez

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferencia

Resumen

In this paper a new method for balancing the capacitors voltage in Neutral-point diode clamped inverters (NPC) is proposed. The method is based on using virtual voltage vectors (VVV) instead of medium voltage vectors (MVV) and using redundant small voltage vectors (RSVV). The combination of the Deadbeat-model predictive control (DB-MPC) and sequential finite set-model predictive control (SFS-MPC) is presented and applied. Also, a new method is introduced to find the triangle where the reference voltage vector is located in the space vector diagram (SVD). In this balancing method, the reference voltage vector is obtained firstly due to the main controlling variable (load current). This is done based on the principle of the DB-MPC. Based on magnitude and phase of this reference voltage vector, the triangle where the reference vector is located, is defined. Then, the outline voltage vectors (real, virtual and redundant) of this triangles and the neutral point current are used to predict the capacitors voltage. These vectors are evaluated within the voltage based cost function and the optimum is applied to the NPC inverter. By using these methods, the controlling of two different variables (load current and capacitors voltage) is performed only by one cost function without weighting factor. The validity of these proposed methods is verified by the SIMULINK/MATLAB.

Idioma originalInglés
Título de la publicación alojada2020 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020
EditorialInstitute of Electrical and Electronics Engineers Inc.
ISBN (versión digital)9781728158495
DOI
EstadoPublicada - feb 2020
Evento11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020 - Tehran, República Islámica de Irán
Duración: 4 feb 20206 feb 2020

Serie de la publicación

Nombre2020 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020

Conferencia

Conferencia11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020
PaísRepública Islámica de Irán
CiudadTehran
Período4/02/206/02/20

Áreas temáticas de ASJC Scopus

  • Ingeniería energética y tecnologías de la energía
  • Energías renovables, sostenibilidad y medio ambiente
  • Ingeniería automovilística
  • Ingeniería eléctrica y electrónica
  • Ingeniería mecánica
  • Control y optimización

Huella Profundice en los temas de investigación de 'Capacitors Voltage Balancing in Neutral-Point Clamped Inverter Using Simplified Finite Set Model Predictive Control and Virtual Voltage Vectors'. En conjunto forman una huella única.

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    Lotfollahzadegan, S., Alireza Davari, S., Garcia, C., & Rodriguez, J. (2020). Capacitors Voltage Balancing in Neutral-Point Clamped Inverter Using Simplified Finite Set Model Predictive Control and Virtual Voltage Vectors. En 2020 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020 [9088468] (2020 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDSTC49159.2020.9088468