A Generalized Predictive control for T-type power inverters with output LC filter

Vázquez, Sergio; Mohan, Charanraj; Franquelo, Leopoldo G.; Márquez, Antonio J.; León, José I.

doi:10.1109/cpe.2015.7231043

Cited by 8 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then the maximum voltage for each upper and bottom part of the leg is strictly defined. This switch can be realized in two ways: (I) use of two antiserial transistors and reverse diodes (II) use of BR-IGBT [5].…”

Section: Topology Of Three-level Nppmentioning

confidence: 99%

Analysis of three-level neutral point piloted power converter topology

Kehl¹,

Glasberger²

2018

2018 International Conference on Applied Electronics (AE)

View full text Add to dashboard Cite

This paper deals with three-level topology of neutral point piloted converters (3L-NPP). These converters can be realized in two variants. The first one is represented by one power semiconductor switch only placed in the top and bottom part of an output leg of a half bridge representing a phase of a three phase converter; the second one is represented by two serial connected semiconductor switches in top and bottom part of the converter leg. These topologies are often compared with neutral point clamped converters but not between themselves. Therefore, the analysis of those topologies is performed in detail in this paper and furthermore, they are compared with a standard two level voltage source converter (2L-VSC) in the point of view of converter losses and output quantities distortion.

show abstract

Section: Topology Of Three-level Nppmentioning

confidence: 99%

Analysis of three-level neutral point piloted power converter topology

Kehl¹,

Glasberger²

2018

2018 International Conference on Applied Electronics (AE)

View full text Add to dashboard Cite

show abstract

“…In recent years, T-type NPC inverter (see Fig. 1a) has been used in LV applications [18,19], such as automotive and PV, owing to its improved energy conversion efficiency than 2L voltage source inverter (2L-VSI) or 3L diode-clamped inverter (3L-DCI) [20,21]. Thanks to T-type NPC inverter, for its fewer conduction losses and low device counts as in 2L-VSI; and low switching losses, superior quality of AC voltage and small filter size as in 3L-DCIs [20].…”

Section: Introductionmentioning

confidence: 99%

Simplified model predictive control of a three‐phase T‐type NPC inverter

Kumar

Rao

Sekhar³

2019

IET Power Electronics

View full text Add to dashboard Cite

This study presents a simplified model predictive control (SMPC) strategy for three-phase T-type neutral-pointclamped (NPC) inverters to reduce the computational effort while achieving the current control, capacitor voltage equalisation and common-mode voltage (CMV) minimisation targets. The approach involves three stages. In the first stage, the number of switching states is reduced from 27 to 19 for reducing the peak CMV. In the second stage, a graphical approach is proposed to identify candidate control set (CCS) based on the present switching state, which helps in reducing the number of computations further. The number of elements in CCS may be 7, 10, 13 or 19. A look-up table with present applied state and its corresponding CCS is formed based on this graphical approach for all the 19 switching states. The third stage involves modifications to the MPC algorithm. Two versions of SMPC schemes (SMPC-I and SMPC-II) are proposed. SMPC-I can restrict the CMV to onesixth of DC input voltage. SMPC-II can achieve near zero CMV. The performance of the SMPC strategy is analysed with parameter uncertainty. Computational effort of SMPC schemes is compared with other MPC methods. The feasibility of SMPC algorithm is verified experimentally on T-type NPC inverter prototype.

show abstract

“…Nonetheless, it requires a high sampling frequency to achieve an acceptable steady-state and high dynamic performances. To deal with this disadvantage, several control approaches have been proposed such as using direct power control with space vector modulation [14], fuzzy control [15], sliding mode control [16], and predictive control [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A Simplified Model Predictive Control for T-Type Inverter with Output LC Filter

et al. 2018

View full text Add to dashboard Cite

In this paper, a model predictive control scheme for the T-type inverter with an output LC filter is presented. A simplified dynamics model is proposed to reduce the number of the measurement and control variables, resulting in a decrease in the cost and complexity of the system. Furthermore, the main contribution of the paper is the approach to evaluate the cost function. By employing the selection of sector information distribution in the reference inverter voltage and capacitor voltage balancing, the execution time of the proposed algorithm is significantly reduced by 36% compared with conventional model predictive control without too much impact on control performance. Simulation and experimental results are studied and compared with conventional finite control set model predictive control to validate the effectiveness of the proposed method.

show abstract

A Generalized Predictive control for T-type power inverters with output LC filter

Cited by 8 publications

References 24 publications

Analysis of three-level neutral point piloted power converter topology

Analysis of three-level neutral point piloted power converter topology

Simplified model predictive control of a three‐phase T‐type NPC inverter

A Simplified Model Predictive Control for T-Type Inverter with Output LC Filter

Contact Info

Product

Resources

About