Review of Five-Level Front-End Converters for Renewable-Energy Applications

Monteiro, Vítor; Tashakor, Nima; Sousa, Tiago J. C.; Kacetl, Tomas; Götz, Stefan; Afonso, João L.

doi:10.3389/fenrg.2020.00172

Cited by 6 publications

(1 citation statement)

References 61 publications

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“…And each phase bridge arm has two bridge arms on the top and bottom. Each bridge arm consists of a single SM sub-module (SM) and a bridge arm inductor [4] , where the bridge arm inductor plays a role in suppressing high-frequency currents to avoid the crosstalk of high-frequency signals to the system [5][6] , thus affecting the stable operation of the system.…”

Section: Main Circuit Of Three-level MMC Invertermentioning

confidence: 99%

Implementation of Automatic DSP Code Generation Based on Closed-loop Algorithm for Three-level Inverters

Zhang,

Zhang

2023

J. Phys.: Conf. Ser.

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Wind energy has the advantages of wide distribution, renewable, and non-polluting, so it is receiving more and more attention from more and more countries. As more and more wind power systems are integrated into the grid, it has an impact on the stability of the grid. To keep the power system stable, there is an urgent need for a grid simulator that can simulate various behaviors of the grid and test the reliability of the wind turbine before grid integration. Inverters, especially multilevel inverters, as the core part of the grid simulator, have been widely studied by scholars in recent years. However, compared to conventional inverters, multilevel inverters are characterized by high code development effort, great difficulty, and a long development period. In this paper, we adopt an automatic DSP code generation method with MATLAB hardware support package and give a complete system design method and development flow based on MATLAB and TMSF28335 automatic code generation. Finally, we take the closed-loop three-level MMC inverter as an example, propose an equalization algorithm suitable for automatic code generation for the capacitor-voltage balancing part, and verify the feasibility of the DSP automatic code generation in a multilevel inverter development. The feasibility of DSP automatic code generation in the development of a multilevel inverter is verified. The experimental results show that the proposed equalization algorithm with variable reference coefficient and DSP automatic code generation method can be used in the development of a multilevel inverter, which can improve development efficiency and reduce development costs.

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Section: Main Circuit Of Three-level MMC Invertermentioning

confidence: 99%

Implementation of Automatic DSP Code Generation Based on Closed-loop Algorithm for Three-level Inverters

Zhang,

Zhang

2023

J. Phys.: Conf. Ser.

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Fault Analysis of a Non-isolated Three-Level DC-DC Converter Integrated in a Bipolar DC Power Grid

Oliveira

Afonso

Monteiro

2022

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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DC power grids present significant advantages over AC power grids, namely higher stability and controllability, and the absence of harmonic currents and reactive power. Moreover, DC grids facilitate the interface with renewable energy sources (RES) and energy storage systems (ESS). DC grids can be either unipolar or bipolar, where the latter consists of three wires and provides higher flexibility, reliability and transmission capacity. However, failures in bipolar DC grids (especially in the power semiconductors) can occur. The consequences of these failures can result in increased costs, depending on the damage, e.g., if it occurs a wire of the DC grid or in the connected power converter. Thus, in this paper is presented a fault analysis of a non-isolated three-level DC-DC converter used to interface solar photovoltaic (PV) panels into a bipolar DC power grid. The fault analysis is conceived through computational simulations, where can be observed the performance of the presented DC-DC converter under fault conditions in each wire of the bipolar DC grid. The simulation results demonstrate the DC-DC converter operating in two different situations: steady-state and transient-state. The control strategy applied in normal and fault conditions, as well as the different operation modes, are explained in detail.

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Modulation and Scheduling Techniques

Tashakor

2023

Novel Highly Flexible Modular Power Electronics for Energy Storage and Conversion Systems

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Review of Five-Level Front-End Converters for Renewable-Energy Applications

Cited by 6 publications

References 61 publications

Implementation of Automatic DSP Code Generation Based on Closed-loop Algorithm for Three-level Inverters

Implementation of Automatic DSP Code Generation Based on Closed-loop Algorithm for Three-level Inverters

Fault Analysis of a Non-isolated Three-Level DC-DC Converter Integrated in a Bipolar DC Power Grid

Modulation and Scheduling Techniques

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