Power control of grid-connected high-gain boost full-bridge modular multilevel converter

Ahmed A. Elserougi; Ahmed M. Massoud; Shehab Ahmed

doi:10.1109/SPEC.2017.8333655

Power control of grid-connected high-gain boost full-bridge modular multilevel converter

Ahmed A. Elserougi, Ahmed M. Massoud, Shehab Ahmed

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Conventional Modular Multilevel Converter (MMC) with half-bridge submodules (HB-SMs) can be used for gird-integration of renewable energy sources, but with limited voltage gain. To elevate the generated ac output voltage level, a bulky low-frequency step-up transformer can be employed at the converter ac side. Alternatively, single-stage dc-ac Boost FullBridge MMC (BFB-MMC) can be used effectively. In this paper, the performance of high-gain grid-connected BFB-MMC is investigated under active and reactive power control. The BFB-MMC can generate an ac output voltage with magnitude of kV_dc where k is a positive integer number, and V_dc is the input dc voltage level. Each arm in the BFB-MMC contains (2k+1) Full-bridge submodules (FB-SMs) each rated at 0.5 V_dc. Each arm is controlled to generate bipolar sinusoidal stepped voltage ranged from (0.5+k) V_dc to (0.5-k)V_dc with steps of 0.5 V_dc while keeping the sum of upper and lower arm voltages in the same leg equals the input dc voltage. A Detailed illustration for BFB-MMC operational concept, capacitor voltage balancing technique, and active and reactive power controller is presented. Finally, simulation model for the grid-connected BFB-MMC has been built. The simulation results show the effectiveness of BFB-MMC in the grid-connected applications.

Original language	English (US)
Title of host publication	Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-5
Number of pages	5
Volume	2018-January
ISBN (Electronic)	9781509064250
DOIs	https://doi.org/10.1109/SPEC.2017.8333655
State	Published - Apr 6 2018
Externally published	Yes
Event	2017 IEEE Southern Power Electronics Conference, SPEC 2017 - Puerto Varas, Chile Duration: Dec 4 2017 → Dec 7 2017

Publication series

Name	Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017
Volume	2018-January

Conference

Conference	2017 IEEE Southern Power Electronics Conference, SPEC 2017
Country	Chile
City	Puerto Varas
Period	12/4/17 → 12/7/17

ASJC Scopus subject areas

Electrical and Electronic Engineering
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

Access to Document

10.1109/SPEC.2017.8333655

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Elserougi, A. A., Massoud, A. M., & Ahmed, S. (2018). Power control of grid-connected high-gain boost full-bridge modular multilevel converter. In Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017 (Vol. 2018-January, pp. 1-5). (Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPEC.2017.8333655

Elserougi, Ahmed A. ; Massoud, Ahmed M. ; Ahmed, Shehab. / Power control of grid-connected high-gain boost full-bridge modular multilevel converter. Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-5 (Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017).

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title = "Power control of grid-connected high-gain boost full-bridge modular multilevel converter",

abstract = "Conventional Modular Multilevel Converter (MMC) with half-bridge submodules (HB-SMs) can be used for gird-integration of renewable energy sources, but with limited voltage gain. To elevate the generated ac output voltage level, a bulky low-frequency step-up transformer can be employed at the converter ac side. Alternatively, single-stage dc-ac Boost FullBridge MMC (BFB-MMC) can be used effectively. In this paper, the performance of high-gain grid-connected BFB-MMC is investigated under active and reactive power control. The BFB-MMC can generate an ac output voltage with magnitude of kVdc where k is a positive integer number, and Vdc is the input dc voltage level. Each arm in the BFB-MMC contains (2k+1) Full-bridge submodules (FB-SMs) each rated at 0.5 Vdc. Each arm is controlled to generate bipolar sinusoidal stepped voltage ranged from (0.5+k) Vdc to (0.5-k)Vdc with steps of 0.5 Vdc while keeping the sum of upper and lower arm voltages in the same leg equals the input dc voltage. A Detailed illustration for BFB-MMC operational concept, capacitor voltage balancing technique, and active and reactive power controller is presented. Finally, simulation model for the grid-connected BFB-MMC has been built. The simulation results show the effectiveness of BFB-MMC in the grid-connected applications.",

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Elserougi, AA, Massoud, AM & Ahmed, S 2018, Power control of grid-connected high-gain boost full-bridge modular multilevel converter. in Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017. vol. 2018-January, Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017, vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 1-5, 2017 IEEE Southern Power Electronics Conference, SPEC 2017, Puerto Varas, Chile, 12/4/17. https://doi.org/10.1109/SPEC.2017.8333655

Power control of grid-connected high-gain boost full-bridge modular multilevel converter. / Elserougi, Ahmed A.; Massoud, Ahmed M.; Ahmed, Shehab.

Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-5 (Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017; Vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Ahmed, Shehab

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Y1 - 2018/4/6

N2 - Conventional Modular Multilevel Converter (MMC) with half-bridge submodules (HB-SMs) can be used for gird-integration of renewable energy sources, but with limited voltage gain. To elevate the generated ac output voltage level, a bulky low-frequency step-up transformer can be employed at the converter ac side. Alternatively, single-stage dc-ac Boost FullBridge MMC (BFB-MMC) can be used effectively. In this paper, the performance of high-gain grid-connected BFB-MMC is investigated under active and reactive power control. The BFB-MMC can generate an ac output voltage with magnitude of kVdc where k is a positive integer number, and Vdc is the input dc voltage level. Each arm in the BFB-MMC contains (2k+1) Full-bridge submodules (FB-SMs) each rated at 0.5 Vdc. Each arm is controlled to generate bipolar sinusoidal stepped voltage ranged from (0.5+k) Vdc to (0.5-k)Vdc with steps of 0.5 Vdc while keeping the sum of upper and lower arm voltages in the same leg equals the input dc voltage. A Detailed illustration for BFB-MMC operational concept, capacitor voltage balancing technique, and active and reactive power controller is presented. Finally, simulation model for the grid-connected BFB-MMC has been built. The simulation results show the effectiveness of BFB-MMC in the grid-connected applications.

AB - Conventional Modular Multilevel Converter (MMC) with half-bridge submodules (HB-SMs) can be used for gird-integration of renewable energy sources, but with limited voltage gain. To elevate the generated ac output voltage level, a bulky low-frequency step-up transformer can be employed at the converter ac side. Alternatively, single-stage dc-ac Boost FullBridge MMC (BFB-MMC) can be used effectively. In this paper, the performance of high-gain grid-connected BFB-MMC is investigated under active and reactive power control. The BFB-MMC can generate an ac output voltage with magnitude of kVdc where k is a positive integer number, and Vdc is the input dc voltage level. Each arm in the BFB-MMC contains (2k+1) Full-bridge submodules (FB-SMs) each rated at 0.5 Vdc. Each arm is controlled to generate bipolar sinusoidal stepped voltage ranged from (0.5+k) Vdc to (0.5-k)Vdc with steps of 0.5 Vdc while keeping the sum of upper and lower arm voltages in the same leg equals the input dc voltage. A Detailed illustration for BFB-MMC operational concept, capacitor voltage balancing technique, and active and reactive power controller is presented. Finally, simulation model for the grid-connected BFB-MMC has been built. The simulation results show the effectiveness of BFB-MMC in the grid-connected applications.

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Elserougi AA, Massoud AM, Ahmed S. Power control of grid-connected high-gain boost full-bridge modular multilevel converter. In Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017. Vol. 2018-January. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-5. (Proceedings - 2017 IEEE Southern Power Electronics Conference, SPEC 2017). https://doi.org/10.1109/SPEC.2017.8333655

Power control of grid-connected high-gain boost full-bridge modular multilevel converter

Abstract

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Conference

ASJC Scopus subject areas

UN SDGs

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