A hybrid power control concept for PV inverters with reduced thermal loading

Yongheng Yang; Huai Wang; Frede Blaabjerg; Tamas Kerekes

doi:10.1109/TPEL.2014.2332754

A hybrid power control concept for PV inverters with reduced thermal loading

Yongheng Yang, Huai Wang, Frede Blaabjerg, Tamas Kerekes

Aalborg University

Research output: Contribution to journal › Article › peer-review

170 Scopus citations

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 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.

Original language	British English
Article number	6844045
Pages (from-to)	6271-6275
Number of pages	5
Journal	IEEE Transactions on Power Electronics
Volume	29
Issue number	12
DOIs	https://doi.org/10.1109/TPEL.2014.2332754
State	Published - Dec 2014

Keywords

Constant power generation (CPG)
efficiency
maximum power point tracking (MPPT)
photovoltaic (PV) inverters
reliability
thermal loading

UN SDGs

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

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10.1109/TPEL.2014.2332754

Cite this

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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 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.",

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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 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.

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KW - maximum power point tracking (MPPT)

KW - photovoltaic (PV) inverters

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A hybrid power control concept for PV inverters with reduced thermal loading

Abstract

Keywords

UN SDGs

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