A Hybrid Power Control Concept for PV Inverters with Reduced Thermal Loading

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Resumé

This letter proposes a hybrid power control concept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum Power Point Tracking (MPPT) control or a Constant Power Generation (CPG) control depending on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection of an appropriate power limit for the CPG control to achieve an improved thermal performance and an increased utilization factor of PV inverters,and thus to cater for a higher penetration level of PV systems with intermittent nature. A case study on a single-phase PV inverter under yearly operation is presented with analyses of the thermal loading, lifetime, and annual energy yield. It has revealed the trade-off factors to select the power limit and also verified the feasibility and the effectiveness of the proposed control concept.
OriginalsprogEngelsk
TidsskriftIEEE Transactions on Power Electronics
Vol/bind29
Udgave nummer12
Sider (fra-til)6271-6275
Antal sider5
ISSN0885-8993
DOI
StatusUdgivet - 2014

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    @article{4805c794ce8c4d2b8de285887276a61a,
    title = "A Hybrid Power Control Concept for PV Inverters with Reduced Thermal Loading",
    abstract = "This letter proposes a hybrid power control concept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum Power Point Tracking (MPPT) control or a Constant Power Generation (CPG) control depending on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection of an appropriate power limit for the CPG control to achieve an improved thermal performance and an increased utilization factor of PV inverters,and thus to cater for a higher penetration level of PV systems with intermittent nature. A case study on a single-phase PV inverter under yearly operation is presented with analyses of the thermal loading, lifetime, and annual energy yield. It has revealed the trade-off factors to select the power limit and also verified the feasibility and the effectiveness of the proposed control concept.",
    keywords = "Photovoltaic inverters, Constant power generation, Maximum power point tracking, Efficiency, Thermal loading, Reliability",
    author = "Yongheng Yang and Huai Wang and Frede Blaabjerg and Tamas Kerekes",
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    doi = "10.1109/TPEL.2014.2332754",
    language = "English",
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    A Hybrid Power Control Concept for PV Inverters with Reduced Thermal Loading. / Yang, Yongheng; Wang, Huai; Blaabjerg, Frede; Kerekes, Tamas.

    I: IEEE Transactions on Power Electronics, Bind 29, Nr. 12, 2014, s. 6271-6275 .

    Publikation: Bidrag til tidsskriftLetterForskningpeer review

    TY - JOUR

    T1 - A Hybrid Power Control Concept for PV Inverters with Reduced Thermal Loading

    AU - Yang, Yongheng

    AU - Wang, Huai

    AU - Blaabjerg, Frede

    AU - Kerekes, Tamas

    PY - 2014

    Y1 - 2014

    N2 - This letter proposes a hybrid power control concept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum Power Point Tracking (MPPT) control or a Constant Power Generation (CPG) control depending on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection of an appropriate power limit for the CPG control to achieve an improved thermal performance and an increased utilization factor of PV inverters,and thus to cater for a higher penetration level of PV systems with intermittent nature. A case study on a single-phase PV inverter under yearly operation is presented with analyses of the thermal loading, lifetime, and annual energy yield. It has revealed the trade-off factors to select the power limit and also verified the feasibility and the effectiveness of the proposed control concept.

    AB - This letter proposes a hybrid power control concept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum Power Point Tracking (MPPT) control or a Constant Power Generation (CPG) control depending on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection of an appropriate power limit for the CPG control to achieve an improved thermal performance and an increased utilization factor of PV inverters,and thus to cater for a higher penetration level of PV systems with intermittent nature. A case study on a single-phase PV inverter under yearly operation is presented with analyses of the thermal loading, lifetime, and annual energy yield. It has revealed the trade-off factors to select the power limit and also verified the feasibility and the effectiveness of the proposed control concept.

    KW - Photovoltaic inverters

    KW - Constant power generation

    KW - Maximum power point tracking

    KW - Efficiency

    KW - Thermal loading

    KW - Reliability

    U2 - 10.1109/TPEL.2014.2332754

    DO - 10.1109/TPEL.2014.2332754

    M3 - Letter

    VL - 29

    SP - 6271

    EP - 6275

    JO - I E E E Transactions on Power Electronics

    JF - I E E E Transactions on Power Electronics

    SN - 0885-8993

    IS - 12

    ER -