An empirical survey of topologies, evolution, and current developments in multilevel inverters

Ezhilarasan, G.; Mohanraj, K.; Vishnuram, Pradeep; Bajaj, Mohit; Blazek, Vojtech; Prokop, Lukas; Misak, Stanislav

doi:10.1016/j.aej.2023.10.049

Cited by 10 publications

(1 citation statement)

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“…Using a mathematical model of the inverter system, the MPC algorithm predicts how the output voltage and current will behave in the future. It determines the most effective control inputs that minimize a given cost function within a constrained amount of time using these forecasts 10 , 11 . In (MPC), the cost function typically includes penalties for deviations from the predefined set point and includes limitations on the inverter's functioning, like voltage and maximum current limits.…”

Section: Introductionmentioning

confidence: 99%

A reduced vector model predictive controller for a three-level neutral point clamped inverter with common-mode voltage suppression

Bebboukha,

Chouaib,

Meneceur

et al. 2024

Sci Rep

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This paper presents a novel, state-of-the-art predictive control architecture that addresses the computational complexity and limitations of conventional predictive control methodologies while enhancing the performance efficacy of predictive control techniques applied to three-level voltage source converters (NPC inverters). This framework's main goal is to decrease the number of filtered voltage lifespan vectors in each sector, which will increase the overall efficiency of the control system and allow for common mode voltage reduction in three-level voltage source converters. Two particular tactics are described in order to accomplish this. First, a statistical approach is presented for the proactive detection of potential voltage vectors, with an emphasis on selecting and including the vectors that are most frequently used. This method lowers the computational load by limiting the search space needed to find the best voltage vectors. Then, using statistical analysis, a plan is presented to split the sectors into two separate parts, so greatly limiting the number of voltage vectors. The goal of this improved predictive control methodology is to reduce computing demands and mitigate common mode voltage. The suggested strategy's resilience is confirmed in a range of operational scenarios using simulations and empirical evaluation. The findings indicate a pronounced enhancement in computational efficiency and a notable diminution in common mode voltage, thereby underscoring the efficacy of the proposed methodology. This increases their ability to incorporate renewable energy sources into the electrical grid.

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Section: Introductionmentioning

confidence: 99%