Multilevel Current Source Converter-Based STATCOM Suitable for Medium-Voltage Applications

Alskran, Faleh; Simões, Marcelo Godoy

doi:10.1109/tpwrd.2020.3004419

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…Even though the DC side of the CSR and CSI can be connected through a single inductor/choke, a common-mode choke is used. This prevents any three-phase common-mode currents from flowing between the CSI side and the CSR [49]. To overcome the unbalanced losses and switching stresses in the switches, overheating, and also voltage drifting in the capacitors, the clamping diodes in the NPC can be replaced by active switches.…”

Section: Cutting-edge Multilevel Converters Powered Smart Grid Systemsmentioning

confidence: 99%

Section: Cutting-edge Multilevel Converters Powered Smart Grid Systemsmentioning

confidence: 99%

“…Even though the DC side of the CSR and CSI can be connected through a single inductor/choke, a common-mode choke is used. This prevents any three-phase common-mode currents from flowing between the CSI side and the CSR [49]. A CSC STATCOM is shown in Figure 16, which is used by utilities to help with compensating voltage fluctuations during renewable energy lack, surplus of generation, load increase, and voltage fluctuations caused by transmission lines with high activity as well as the connection of electric-vehicle plug-ins and battery storage.…”

Section: Switchesmentioning

confidence: 99%

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Future Renewable Energy Communities Based Flexible Power Systems

et al. 2021

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This paper presents a new holistic approach that combines solutions for the future power systems. It describes clearly how solar energy is definitely the best outlet for a clean and sustainable planet, either due to their use in both vertical (V) or horizontal (H) forms such as: hydroelectric V&H, wind V&H, thermo-oceanic V&H, water movement sea V&H (tides and waves), solar thermoelectric, PV, and surface geothermal energy. New points of view and simple formulas are suggested to calculate the best characteristic intensity, storage means and frequency for specific places and how to manage the most well-known renewable sources of energy. Future renewables-based power system requires a huge amount of flexibility from different type and size of controllable energy resources. These flexible energy resources can be used in an aggregated manner to provide different ancillary services for the distribution and transmission network. In addition, flexible energy resources and renewable generation can be utilized in different kinds of energy communities and smart cities to benefit all stakeholders and society at the same time with future-proof market structures, new business models and management schemes enabling increased utilization of flexible energy resources. Many of the flexible energy resources and renewable-based generation units are also inverter-interfaced and therefore the authors present future power converter systems for energy sources as well as the latest age of multilevel converters.

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Section: Cutting-edge Multilevel Converters Powered Smart Grid Systemsmentioning

confidence: 99%

Section: Cutting-edge Multilevel Converters Powered Smart Grid Systemsmentioning

confidence: 99%

“…Even though the DC side of the CSR and CSI can be connected through a single inductor/choke, a common-mode choke is used. This prevents any three-phase common-mode currents from flowing between the CSI side and the CSR [49]. A CSC STATCOM is shown in Figure 16, which is used by utilities to help with compensating voltage fluctuations during renewable energy lack, surplus of generation, load increase, and voltage fluctuations caused by transmission lines with high activity as well as the connection of electric-vehicle plug-ins and battery storage.…”

Section: Switchesmentioning

confidence: 99%

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Future Renewable Energy Communities Based Flexible Power Systems

et al. 2021

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“…Multi-level current source inverter (MCSI) is considered to be an effective technology to reduce the switching stress as well as the filter size and has been extensively implemented, e.g. the single/multi-rating inductor MCSI, the paralleled H-bridge MCSI, and the buck-boost MCSI (Gao et al, 2010;Dupczak et al, 2012;Ries and Heldwein, 2020;Alskran and Simoes, 2021;Ding and Li, 2021). However, these state-of-the-art research works are essentially the series/parallel combinations of multiple H6 bridges, which can be classified as the H6-type MCSIs.…”

Section: Introductionmentioning

confidence: 99%

Three-phase boost-stage coupled current source inverter concept and its space vector modulation

Wang

Rui

et al. 2023

Front. Energy Res.

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The current source inverter (CSI) is essentially a converter with inherent boost capability and has been preliminarily applied in the field of renewable energy generation systems. However, conventional CSIs are mostly operated independently. Several existing multilevel CSI topologies entirely rely on parallel combinations, which seems to be not very suitable for capacity expansion. To solve this issue, this paper proposes a concept of three-phase boost-stage coupled current source inverter (BSC-CSI) through the duality principle, which can output multi-level currents with a reduced number of switches as well as hardware costs. Compared with the state-of-the-art CSIs, the proposed BSC-CSI can notably simplify the implementation of the multi-level modulation scheme and meanwhile ensure the power devices switch under lower current stress. To further take full advantage of the modularity and scalability, the BSC-CSI can be constructed by hybrid using silicon-carbide (SiC) and silicon (Si) based semiconductor switches for improving efficiency. The experimental results have verified the theoretical findings.

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“…Few researchers have also implemented multi-level CSI fed STATCOM. The modulation technique of [17] has demonstrated less THD in comparison with conventional phase shifted carrier SPWM. The feasibility of deploying modular multilevel converters for STATCOM is explored in [18] with a moto to install high energy capabilities for reactive power compensation with high efficiency and insuring safety and reliability in grid operation.…”

Section: Introductionmentioning

confidence: 99%

A Five Level Modified Cascaded H-Bridge Inverter STATCOM for Power Quality Improvement

Magadum¹,

Sakri²

2023

IJEEI

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Multilevel converters have received serious attention on account of their capability of high voltage operation, high efficiency, and low electromagnetic interference. It has many advantages compared to conventional two-level inverters such as high dc-link voltages, reduced harmonic distortion, fewer voltage stresses, and low electromagnetic interferences. The multilevel converters have been used for STATCOM widely as it can improve the power rating of the compensator to make it suitable for medium or high-voltage high power applications. While deploying multilevel STATCOMs, designer's role is to reduce the number of switching devices since, the total switching losses are proportional to the number of switching devices. The reduction in the count of switching devices also reduces the size and cost. In this paper, a five-level modified cascaded H-bridge inverter STATCOM is proposed for mitigation of harmonics. Modified Five-level CHB configuration is the most suitable as with lesser number of switches, give better performance resulting in a compact system. The PQ theory-based controller is developed for control of STATCOM operation. MATLAB simulation results are presented to demonstrate mitigation of harmonics.

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Multilevel Current Source Converter-Based STATCOM Suitable for Medium-Voltage Applications

Cited by 12 publications

References 16 publications

Future Renewable Energy Communities Based Flexible Power Systems

Future Renewable Energy Communities Based Flexible Power Systems

Three-phase boost-stage coupled current source inverter concept and its space vector modulation

A Five Level Modified Cascaded H-Bridge Inverter STATCOM for Power Quality Improvement

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