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Abstract
With a still increasing penetration level of grid-connected photovoltaic (PV) systems, more advanced and flexible control functionalities are demanded. To ensure a smooth and friendly integration between the PV systems and the grid, the power generated by the PV system needs to be flexible and capable of (1) limiting the maximum feed-in power, (2) limiting the maximum power change rate, and (3) providing active power reserve during the operation. This chapter explores the possible solutions to realize the flexible power control requirements. Among other possible approaches, modifying the Maximum Power Point Tracking (MPPT) control algorithm of the power converter can realize the flexible power control requirement by regulating the operating point of the PV system below the maximum available power of the PV arrays. Therefore, this approach does not require an extra component, being a cost-effective solution in terms of component cost and at the same time offering high reliability. The operational principle of the PV systems with the modifying MPPT algorithm is discussed in this chapter, where the flexible active power control functionalities are demonstrate via experiments on a two-stage grid-connected PV system. The experimental results verify that the power-limiting control, power ramp-rate control, and power reserve control functionalities can be achieved upon demands.
Original language | English |
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Title of host publication | Advances in Renewable Energies and Power Technologies : Solar and Wind Energies |
Editors | Imene Yahyaoui |
Number of pages | 23 |
Volume | 1 |
Publisher | Elsevier |
Publication date | 14 Feb 2018 |
Pages | 207 - 229 |
Chapter | 6 |
ISBN (Print) | 978-0-12-812959-3 |
ISBN (Electronic) | 9780128132173 |
DOIs | |
Publication status | Published - 14 Feb 2018 |
Keywords
- Active power control
- Grid integration
- Maximum power point tracking
- Photovoltaic systems
- Power converters
- Power ramp-rate control
- Power reserve control
- Power-limiting control
Fingerprint
Dive into the research topics of 'Flexible Power Control of Photovoltaic Systems'. Together they form a unique fingerprint.Projects
- 1 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