Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems

C. D. Townsend; T. J. Summers; R. E. Betz

doi:10.1109/ECCE.2012.6342475

Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems

C. D. Townsend, T. J. Summers, R. E. Betz

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

79 Citations (Scopus)

Abstract

Multi-level Cascaded H-bridge (CHB) converters are ideal for implementing large scale photovoltaic systems. The improved quality of the voltage waveforms, high efficiency and ability to employ multiple Maximum Power Point Tracking (MPPT) algorithms are just some of the advantages. In this paper a three-phase CHB converter supplied with photovoltaic arrays is considered. A control and modulation structure based on Model Predictive Control (MPC) is described. The scheme inherently controls the DC link voltages while also providing the ability to modify any of those voltages to meet MPPT requirements. This avoids the cost and added complexity of extra DC/DC converters that are typically required to keep the DC link voltages uniform. Simulation and experimental results are presented that confirm the correct operation of the proposed approach.

Original language	English
Title of host publication	2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
Pages	3707-3714
Number of pages	8
DOIs	https://doi.org/10.1109/ECCE.2012.6342475
Publication status	Published - 17 Dec 2012
Externally published	Yes
Event	4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012 - Raleigh, NC, United States Duration: 15 Sept 2012 → 20 Sept 2012

Conference

Conference	4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012
Country/Territory	United States
City	Raleigh, NC
Period	15/09/12 → 20/09/12

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/ECCE.2012.6342475

Cite this

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title = "Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems",

abstract = "Multi-level Cascaded H-bridge (CHB) converters are ideal for implementing large scale photovoltaic systems. The improved quality of the voltage waveforms, high efficiency and ability to employ multiple Maximum Power Point Tracking (MPPT) algorithms are just some of the advantages. In this paper a three-phase CHB converter supplied with photovoltaic arrays is considered. A control and modulation structure based on Model Predictive Control (MPC) is described. The scheme inherently controls the DC link voltages while also providing the ability to modify any of those voltages to meet MPPT requirements. This avoids the cost and added complexity of extra DC/DC converters that are typically required to keep the DC link voltages uniform. Simulation and experimental results are presented that confirm the correct operation of the proposed approach.",

author = "Townsend, {C. D.} and Summers, {T. J.} and Betz, {R. E.}",

year = "2012",

month = dec,

day = "17",

doi = "10.1109/ECCE.2012.6342475",

language = "English",

isbn = "9781467308014",

pages = "3707--3714",

booktitle = "2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012",

note = "4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012 ; Conference date: 15-09-2012 Through 20-09-2012",

}

Townsend, CD, Summers, TJ & Betz, RE 2012, Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems. in 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012., 6342475, pp. 3707-3714, 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012, Raleigh, NC, United States, 15/09/12. https://doi.org/10.1109/ECCE.2012.6342475

TY - GEN

T1 - Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems

AU - Townsend, C. D.

AU - Summers, T. J.

AU - Betz, R. E.

PY - 2012/12/17

Y1 - 2012/12/17

N2 - Multi-level Cascaded H-bridge (CHB) converters are ideal for implementing large scale photovoltaic systems. The improved quality of the voltage waveforms, high efficiency and ability to employ multiple Maximum Power Point Tracking (MPPT) algorithms are just some of the advantages. In this paper a three-phase CHB converter supplied with photovoltaic arrays is considered. A control and modulation structure based on Model Predictive Control (MPC) is described. The scheme inherently controls the DC link voltages while also providing the ability to modify any of those voltages to meet MPPT requirements. This avoids the cost and added complexity of extra DC/DC converters that are typically required to keep the DC link voltages uniform. Simulation and experimental results are presented that confirm the correct operation of the proposed approach.

AB - Multi-level Cascaded H-bridge (CHB) converters are ideal for implementing large scale photovoltaic systems. The improved quality of the voltage waveforms, high efficiency and ability to employ multiple Maximum Power Point Tracking (MPPT) algorithms are just some of the advantages. In this paper a three-phase CHB converter supplied with photovoltaic arrays is considered. A control and modulation structure based on Model Predictive Control (MPC) is described. The scheme inherently controls the DC link voltages while also providing the ability to modify any of those voltages to meet MPPT requirements. This avoids the cost and added complexity of extra DC/DC converters that are typically required to keep the DC link voltages uniform. Simulation and experimental results are presented that confirm the correct operation of the proposed approach.

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U2 - 10.1109/ECCE.2012.6342475

DO - 10.1109/ECCE.2012.6342475

M3 - Conference paper

AN - SCOPUS:84870898329

SN - 9781467308014

SP - 3707

EP - 3714

BT - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012

T2 - 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012

Y2 - 15 September 2012 through 20 September 2012

ER -

Control and modulation scheme for a Cascaded H-Bridge multi-level converter in large scale photovoltaic systems

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