Control and Performance of a Transformerless Cascade PWM STATCOM With Star Configuration

Akagi, Hirofumi; Inoue, Shozo; Yoshii, Tsurugi

doi:10.1109/tia.2007.900487

Cited by 562 publications

(249 citation statements)

References 24 publications

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“…An additional control loop is utilised to ensure equal dc capacitor voltages within a branch [13]. The voltage reference " * " is distributed among the number of cells in the − branch.…”

Section: Cell Balancing Methods and Modulationmentioning

confidence: 99%

Modelling and control of the Modular Multilevel Matrix Converter and its application to Wind Energy Conversion Systems

Díaz

Cárdenas

Espinoza

et al. 2016

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society

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Abstract-In the last past years, some countries are enforcing stringent grid codes to regulate the connection of Wind Energy Conversion Systems (WECSs) to the electrical network, mainly because of the high penetration of electric power from this renewable source. Additionally, the trend of wind turbines has shown an ongoing power rating growth, reaching sizes up to 10 MW. Multilevel converters appear then as a promising solution for large WECSs, due to its high reliability, controllability and the capability to reach high power ratings. In this scenario, this paper presents a control strategy for the application of the Modular Multilevel Matrix Converter in Multimegawatts Wind Turbines. Extensive computer simulations and a downscaled laboratory prototype, with twenty-seven power cells, are presented to validate the effectiveness of the proposed control system. .

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“…An additional control loop is utilised to ensure equal dc capacitor voltages within a branch [13]. The voltage reference " * " is distributed among the number of cells in the − branch.…”

Section: Cell Balancing Methods and Modulationmentioning

confidence: 99%

Modelling and control of the Modular Multilevel Matrix Converter and its application to Wind Energy Conversion Systems

Díaz

Cárdenas

Espinoza

et al. 2016

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society

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“…3a, 7-level version of the proposed T converter is configured through implementation of three H-bridge modules in each branches of T. Control scheme for this version of converter is akin to cascaded multilevel star connected STATCOMs [30] and is explained in the next section. Capacitors are placed in DC link of each H-bridges and capacitor voltages are regulated at desired references.…”

Section: Principle Of Operationmentioning

confidence: 99%

T‐type direct AC/AC converter structure

Khodabandeh

Zolghadri

Shahbazi

et al. 2016

IET Power Electronics

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The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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“…This control scheme is presented in Fig. 7 and was firstly proposed for STATCOM applications [19]. The voltage reference " * " is distributed among the number of cells in the − branch.…”

Section: E Cell Balancing Algorithm and Modulation Schemementioning

confidence: 99%

The application of the modular multilevel matrix converter in high-power wind turbines

Díaz

Espinoza

Mora

et al. 2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AcknowledgmentsThe support of Fondecyt grant Nr. 1140337, the Basal Project AC3E FB0008 and the P.hD. Scholarship CONICYT / Doctorado Nacional / 2013-21130721 are kindly acknowledged. Keywords«Wind Turbines», « Fault Ride-Through »,« Multilevel Converters », « Matrix Converter». AbstractThe trend in wind turbines has shown an ongoing power rating growth, reaching sizes up to 10 MW. Multilevel converters have therefore become a favourable solution for Multi-MW Wind Energy Conversion Systems (WECSs), due to high efficiency, reliability, controllability and the ability to reach high power/voltage ratings. Moreover, stringent grid codes to regulate the connection of WECSs to the electrical networks have been developed in countries with a high penetration of wind energy. In this context, this paper introduces the novel application of the Modular Multilevel Matrix Converter for interfacing Multi-MW Wind Turbines to provide decoupled input-output regulation, variable speed operation and fulfilment of modern grid codes.

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Control and Performance of a Transformerless Cascade PWM STATCOM With Star Configuration

Cited by 562 publications

References 24 publications

Modelling and control of the Modular Multilevel Matrix Converter and its application to Wind Energy Conversion Systems

Modelling and control of the Modular Multilevel Matrix Converter and its application to Wind Energy Conversion Systems

T‐type direct AC/AC converter structure

The application of the modular multilevel matrix converter in high-power wind turbines

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