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Abstract
With a still increase of grid-connected photovoltaic (PV) systems, challenges have been imposed on the grid due to the continuous injection of a large amount of fluctuating PV power, like overloading the grid infrastructure (e.g., transformers) during peak power production periods. Hence, advanced active power control methods are required. As a cost-effective solution to avoid overloading, a constant power generation (CPG) control scheme by limiting the feed-in power has been introduced into the currently active grid regulations. In order to achieve a CPG operation, this paper presents three CPG strategies based on a power control method (P-CPG), a current limit method (I-CPG), and the perturb and observe algorithm (P&O-CPG). However, the operational mode changes (e.g., from the maximum power point tracking to a CPG operation) will affect the entire system performance. Thus, a benchmarking of the presented CPG strategies is also conducted on a 3-kW single-phase grid-connected PV system. Comparisons reveal that either the P-CPG or I-CPG strategies can achieve fast dynamics and satisfactory steady-state performance. In contrast, the P&O-CPG algorithm is the most suitable solution in terms of high robustness, but it presents poor dynamic performance.
Original language | English |
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Article number | 8012524 |
Journal | I E E E Transactions on Industry Applications |
Volume | 54 |
Issue number | 1 |
Pages (from-to) | 447-457 |
Number of pages | 11 |
ISSN | 0093-9994 |
DOIs | |
Publication status | Published - 1 Jan 2018 |
Keywords
- Active power control
- constant power control
- maximum power point tracking (MPPT)
- photovoltaic (PV) systems
- power converters
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Dive into the research topics of 'Benchmarking of Constant Power Generation Strategies for Single-Phase Grid-Connected Photovoltaic Systems'. Together they form a unique fingerprint.Projects
- 2 Finished
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PV2GRID: A Next-Generation Grid Side Converter with Advanced Control and Power Quality Capabilities
Blaabjerg, F., Yang, Y. & Sangwongwanich, A.
01/01/2015 → 30/09/2017
Project: Research
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research