Maximum Power Point Tracking for photovoltaic systemapplied to DC/DC/AC inverter based on Modular Multi‑level Converter structure
Nowadays, solar power is a potential alternative energy source. To get the best maximum power from solar power, it is necessary to have a strong enough inverter structure and a good control algorithm. This paper presents the Maximum Power Point Tracking (MPPT) algorithm of a solar PV system applied...
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          | Published in | Archives of Electrical Engineering (Online) Vol. 74; no. 2; pp. 425 - 445 | 
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| Main Authors | , | 
| Format | Journal Article | 
| Language | English Polish  | 
| Published | 
        Warsaw
          Polish Academy of Sciences
    
        01.04.2025
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| Subjects | |
| Online Access | Get full text | 
| ISSN | 1427-4221 2300-2506 2300-2506  | 
| DOI | 10.24425/aee.2025.153907 | 
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| Abstract | Nowadays, solar power is a potential alternative energy source. To get the best maximum power from solar power, it is necessary to have a strong enough inverter structure and a good control algorithm. This paper presents the Maximum Power Point Tracking (MPPT) algorithm of a solar PV system applied to a DC/DC/AC inverter to obtain maximum power, in which the DC/DC rectifier uses a Boost Converter and the DC/AC inverter uses a Modular Multilevel Converter (MMC). The purpose is to convert electricity from the grid-connected PV system. The MPPT algorithm uses the Incremental Conductance – Integral Regulator (INC-IR) method to find the maximum power point quickly and accurately in different weather conditions. The operation of an MMC uses the Nearest Level Modulation (NLM) method combined with a capacitor voltage balance algorithm to generate maximum AC voltage levels and control the capacitor voltage balance in the MMC. The Nearest Level Modulation method has the advantage of providing a very low valve switching frequency to increase the lifetime of the semiconductor valve. A closed-loop circuit with the PI controller performs the grid-connected power control process. This control and modulation process will produce sinusoidal alternating current (AC) and voltage with a sound total harmonic distortion (THD) index. The simulation of the system will be performed on MATLAB/Simulink software to demonstrate the performance of the proposed method and applied to a 21-level MMC | 
    
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| AbstractList | Nowadays, solar power is a potential alternative energy source. To get the best maximum power from solar power, it is necessary to have a strong enough inverter structure and a good control algorithm. This paper presents the Maximum Power Point Tracking (MPPT) algorithm of a solar PV system applied to a DC/DC/AC inverter to obtain maximum power, in which the DC/DC rectifier uses a Boost Converter and the DC/AC inverter uses a Modular Multilevel Converter (MMC). The purpose is to convert electricity from the grid-connected PV system. The MPPT algorithm uses the Incremental Conductance – Integral Regulator (INC-IR) method to find the maximum power point quickly and accurately in different weather conditions. The operation of an MMC uses the Nearest Level Modulation (NLM) method combined with a capacitor voltage balance algorithm to generate maximum AC voltage levels and control the capacitor voltage balance in the MMC. The Nearest Level Modulation method has the advantage of providing a very low valve switching frequency to increase the lifetime of the semiconductor valve. A closed-loop circuit with the PI controller performs the grid-connected power control process. This control and modulation process will produce sinusoidal alternating current (AC) and voltage with a sound total harmonic distortion (THD) index. The simulation of the system will be performed on MATLAB/Simulink software to demonstrate the performance of the proposed method and applied to a 21-level MMC | 
    
| Author | Thu Anh, An Thi Hoai Cuong, Tran Hung  | 
    
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| SubjectTerms | Algorithms Alternating current Capacitors Closed loops Control algorithms Control theory Electric potential Harmonic distortion Incremental conductance Inverters Maximum power tracking Modular structures Modulation Photovoltaic cells Power control Solar energy Voltage Weather  | 
    
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| Title | Maximum Power Point Tracking for photovoltaic systemapplied to DC/DC/AC inverter based on Modular Multi‑level Converter structure | 
    
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