A Modular Multilevel Converter with Power Mismatch Control for Grid-Connected Photovoltaic Systems

Duman, Turgay; Marti, Shilpa; Moonem, M.; Krishnaswami, Hariharan

doi:10.3390/en10050698

Title: A Modular Multilevel Converter with Power Mismatch Control for Grid-Connected Photovoltaic Systems

Journal Article · Wed May 17 00:00:00 EDT 2017 · Energies

DOI:https://doi.org/10.3390/en10050698· OSTI ID:1809097

Duman, Turgay; Marti, Shilpa; Moonem, M.; Krishnaswami, Hariharan

A modular multilevel power converter configuration for grid connected photovoltaic (PV) systems is proposed. The converter configuration replaces the conventional bulky line frequency transformer with several high frequency transformers, potentially reducing the balance of systems cost of PV systems. The front-end converter for each port is a neutral-point diode clamped (NPC) multi-level dc-dc dual-active bridge (ML-DAB) which allows maximum power point tracking (MPPT). The integrated high frequency transformer provides the galvanic isolation between the PV and grid side and also steps up the low dc voltage from PV source. Following the ML-DAB stage, in each port, is a NPC inverter. N number of NPC inverters’ outputs are cascaded to attain the per-phase line-to-neutral voltage to connect directly to the distribution grid (i.e., 13.8 kV). The cascaded NPC (CNPC) inverters have the inherent advantage of using lower rated devices, smaller filters and low total harmonic distortion required for PV grid interconnection. The proposed converter system is modular, scalable, and serviceable with zero downtime with lower foot print and lower overall cost. A novel voltage balance control at each module based on power mismatch among N-ports, have been presented and verified in simulation. Analysis and simulation results are presented for the N-port converter. The converter performance has also been verified on a hardware prototype.

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Research Organization:: Univ. of Texas at San Antonio, TX (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: EE0006323

OSTI ID:: 1809097

Alternate ID(s):: OSTI ID: 1393537

Journal Information:: Energies, Journal Name: Energies Vol. 10 Journal Issue: 5; ISSN 1996-1073

Publisher:: MDPICopyright Statement

Country of Publication:: Switzerland

Language:: English

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Cited by: 16 works

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References (30)

Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems Rivera, S.; Kouro, S.; Wu, B. 2011 IEEE 20th International Symposium on Industrial Electronics (ISIE), 2011 IEEE International Symposium on Industrial Electronics https://doi.org/10.1109/ISIE.2011.5984437	conference	June 2011
Grid-Connected Photovoltaic Systems: An Overview of Recent Research and Emerging PV Converter Technology Kouro, Samir; Leon, Jose I.; Vinnikov, Dimitri IEEE Industrial Electronics Magazine, Vol. 9, Issue 1 https://doi.org/10.1109/MIE.2014.2376976	journal	March 2015
Power and Voltage Balance Control of a Novel Three-Phase Solid-State Transformer Using Multilevel Cascaded H-Bridge Inverters for Microgrid Applications Wang, Liang; Zhang, Donglai; Wang, Yi IEEE Transactions on Power Electronics, Vol. 31, Issue 4 https://doi.org/10.1109/TPEL.2015.2450756	journal	April 2016
Power Balance of Cascaded H-Bridge Multilevel Converters for Large-Scale Photovoltaic Integration Yu, Yifan; Konstantinou, Georgios; Hredzak, Branislav IEEE Transactions on Power Electronics, Vol. 31, Issue 1 https://doi.org/10.1109/TPEL.2015.2406315	journal	January 2016
Voltage and Power Balance Control for a Cascaded H-Bridge Converter-Based Solid-State Transformer Zhao, Tiefu; Wang, Gangyao; Bhattacharya, Subharshish IEEE Transactions on Power Electronics, Vol. 28, Issue 4 https://doi.org/10.1109/TPEL.2012.2216549	journal	April 2013
Design Optimization of Transformerless Grid-Connected PV Inverters Including Reliability Koutroulis, Eftichios; Blaabjerg, Frede IEEE Transactions on Power Electronics, Vol. 28, Issue 1 https://doi.org/10.1109/TPEL.2012.2198670	journal	January 2013
Two-stage PV power system with improved throughput and utility control capability Nichols, S.; Huang, J.; Ilic, M. 2010 IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply https://doi.org/10.1109/CITRES.2010.5619861	conference	September 2010
Control and configuration of three-level dual-active bridge DC-DC converter as a front-end interface for photovoltaic system Moonem, M. A.; Krishnaswami, H. 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014 https://doi.org/10.1109/APEC.2014.6803734	conference	March 2014
Comparison and Analysis of Single-Phase Transformerless Grid-Connected PV Inverters Freddy, Tan Kheng Suan; Rahim, Nasrudin A.; Hew, Wooi-Ping IEEE Transactions on Power Electronics, Vol. 29, Issue 10, p. 5358-5369 https://doi.org/10.1109/TPEL.2013.2294953	journal	December 2013
A High-Frequency Link Multilevel Cascaded Medium-Voltage Converter for Direct Grid Integration of Renewable Energy Systems Islam, Md. Rabiul; Guo, Youguang; Zhu, Jianguo IEEE Transactions on Power Electronics, Vol. 29, Issue 8 https://doi.org/10.1109/TPEL.2013.2290313	journal	August 2014
Grid Integration and Dynamic Impact of Wind Energy Vittal, Vijay; Ayyanar, Raja https://doi.org/10.1007/978-1-4419-9323-6	book	January 2013
Smart grid technologies Wang, Jun; Huang, Alex; Sung, Woongje IEEE Industrial Electronics Magazine, Vol. 3, Issue 2 https://doi.org/10.1109/MIE.2009.932583	journal	June 2009
A Multilevel Medium-Voltage Inverter for Step-Up-Transformer-Less Grid Connection of Photovoltaic Power Plants Islam, Md. Rabiul; Guo, Youguang; Zhu, Jianguo IEEE Journal of Photovoltaics, Vol. 4, Issue 3 https://doi.org/10.1109/JPHOTOV.2014.2310295	journal	May 2014
Control of a cascaded H-bridge multilevel converter for grid connection of photovoltaic systems Kouro, Samir; Wu, Bin; Moya, Alvaro IECON 2009 - 35th Annual Conference of IEEE Industrial Electronics (IECON 2009), 2009 35th Annual Conference of IEEE Industrial Electronics https://doi.org/10.1109/IECON.2009.5415332	conference	November 2009
A Family of Neutral Point Clamped Full-Bridge Topologies for Transformerless Photovoltaic Grid-Tied Inverters Zhang, Li; Sun, Kai; Feng, Lanlan IEEE Transactions on Power Electronics, Vol. 28, Issue 2 https://doi.org/10.1109/TPEL.2012.2205406	journal	February 2013
Decoupled Active and Reactive Power Control for Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded Modular Multilevel Converters Liu, Liming; Li, Hui; Xue, Yaosuo IEEE Transactions on Power Electronics, Vol. 30, Issue 1, p. 176-187 https://doi.org/10.1109/TPEL.2014.2304966	journal	February 2014
Performance characterization of a high-power dual active bridge DC-to-DC converter Kheraluwala, M. N.; Gascoigne, R. W.; Divan, D. M. IEEE Transactions on Industry Applications, Vol. 28, Issue 6 https://doi.org/10.1109/28.175280	journal	January 1992
Multilevel Medium-Frequency Link Inverter for Utility Scale Photovoltaic Integration Essakiappan, Somasundaram; Krishnamoorthy, Harish S.; Enjeti, Prasad IEEE Transactions on Power Electronics, Vol. 30, Issue 7 https://doi.org/10.1109/TPEL.2014.2350978	journal	July 2015
A Review of Single-Phase Grid-Connected Inverters for Photovoltaic Modules Kjaer, S. B.; Pedersen, J. K.; Blaabjerg, F. IEEE Transactions on Industry Applications, Vol. 41, Issue 5, p. 1292-1306 https://doi.org/10.1109/TIA.2005.853371	journal	September 2005
Research of efficient DC-DC converter based on SiC power devices and ZVS soft switches Xi, Xiaodan; Liu, Shaokai; Kuang, Jiexin 2013 1st International Future Energy Electronics Conference (IFEEC) https://doi.org/10.1109/IFEEC.2013.6687502	conference	November 2013
Analysis, Design, and Experimental Results of the Semidual-Active-Bridge Converter Kulasekaran, Siddharth; Ayyanar, Rajapandian IEEE Transactions on Power Electronics, Vol. 29, Issue 10 https://doi.org/10.1109/TPEL.2013.2290705	journal	October 2014
Analysis of a Multilevel Dual Active Bridge (ML-DAB) DC-DC Converter Using Symmetric Modulation Moonem, M.; Pechacek, C.; Hernandez, R. Electronics, Vol. 4, Issue 2 https://doi.org/10.3390/electronics4020239	journal	April 2015
FREEDM system - a vision for the future grid Huang, Alex Energy Society General Meeting, IEEE PES General Meeting https://doi.org/10.1109/PES.2010.5590201	conference	July 2010
High-Frequency-Link-Based Grid-Tied PV System With Small DC-Link Capacitor and Low-Frequency Ripple-Free Maximum Power Point Tracking Shi, Yuxiang; Li, Rui; Xue, Yaosuo IEEE Transactions on Power Electronics, Vol. 31, Issue 1 https://doi.org/10.1109/TPEL.2015.2411858	journal	January 2016
Design considerations of a 15kV SiC IGBT enabled high-frequency isolated DC-DC converter Tripathi, Awneesh; Mainali, Krishna; Patel, Dhaval 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA) https://doi.org/10.1109/IPEC.2014.6869673	conference	May 2014
High-Voltage n-Channel IGBTs on Free-Standing 4H-SiC Epilayers Wang, Xiaokun; Cooper, James A. IEEE Transactions on Electron Devices, Vol. 57, Issue 2 https://doi.org/10.1109/TED.2009.2037379	journal	February 2010
Modulation and capacitor voltage balancing control of a three-level NPC dual-active-bridge DC-DC converter Filba-Martinez, A.; Busquets-Monge, S.; Bordonau, J. IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society https://doi.org/10.1109/IECON.2013.6700163	conference	November 2013
A Transformerless Intelligent Power Substation: A three-phase SST enabled by a 15-kV SiC IGBT Mainali, Krishna; Tripathi, Awneesh; Madhusoodhanan, Sachin IEEE Power Electronics Magazine, Vol. 2, Issue 3 https://doi.org/10.1109/MPEL.2015.2449271	journal	September 2015
Novel inverter technology reduces utility-scale PV system costs Schmalzel, J.; Jansson, P.; Schmalzel, D. 2011 37th IEEE Photovoltaic Specialists Conference (PVSC) https://doi.org/10.1109/PVSC.2011.6186316	conference	June 2011
Review and Comparison of Step-Up Transformerless Topologies for Photovoltaic AC-Module Application Meneses, D.; Blaabjerg, F.; García, Ó IEEE Transactions on Power Electronics, Vol. 28, Issue 6 https://doi.org/10.1109/TPEL.2012.2227820	journal	June 2013

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