Title:	Comparison of Control Strategies for PV Power Ramp-Rate Limitation Using Energy Storage
Author(s):	I. , J. Marcos, M. Muñoz, M. García
Topic:	OPERATIONS, PERFORMANCE AND RELIABILITY OF PHOTOVOLTAICS (FROM CELLS TO SYSTEMS)
Subtopic:	Operation of PV Systems and Plants
Event:	31st European Photovoltaic Solar Energy Conference and Exhibition
Session:	5BV.2.12
Pages:	2210 - 2215
ISBN:	3-936338-39-6
Paper DOI:	10.4229/EUPVSEC20152015-5BV.2.12
Price:	0,00 EUR
Document(s):	paper, poster

Abstract/Summary:

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Short-term variability is one of the critical challenges to greater penetration of PV into the electricity system. New grid-codes [1], [2] require combining the PV generator with some form of energy storage technology in order to reduce short-term PV power fluctuation. Herein, it is compared through different merit indexes the strategies available in the literature to comply with the maximum allowable ramp-rate limitation imposed by a grid code. This work presents a guide whose aim is to facilitate the election of implementing one control strategy or another and the storage technology to be used. All the strategies have been evaluated over 1-year 5 second power measurements which were recorded at the output of 500 kW inverters at the 38.5 MW Amareleja (Portugal) PV plant for a maximum allowable ramp-rate value of 2%/min.