Global statistics reports all over the world demonstrates that wind generation is the only renewable energy that could really help in the future on matching the reduction of CO2 emissions (at least in the short and mid term scenario). Thus the TSOs of most European Countries (where this renewable resource is more relevant) have modified their Grid Codes, in order to regulate the behavior of connected wind power. Actually, one of the more problematic issues regarding wind generation itself is the respect of Power Quality requirements, as wind speed variations could heavily influence system's frequency as well as other perturbations, induced by system's contingencies, could be worsened by this renewable generation. Using a simulation platform called SICRE and a "Test Grid", reasonably comparable to a real grid, the effects of connecting to a "real" power system a large amount of wind power will be analyzed, trying to find a connection between growth of installed wind power and occurrence of Power Quality disturbances. The analysis will be shed into two different disturbances of the Power Quality: frequency transients due to wind turbulences; frequency transients due to grid contingences.
Climate change has become a priority issue since the beginning of the '90s, but binding agreements on GHG (Greenhouse Gas) emission reduction valid worldwide have not been reached yet. The European Union has been a forerunner on regional binding targets with its “20-20-20” Climate and Energy Package approved in 2009, followed in Dec. 2011 by more ambitious targets implying a dramatic reduction by 2050 of GHG emissions to 80–95% below 1990 levels. After a review of the present world situation with respect to primary energy resources, electricity production and CO2 emissions, the paper addresses the present and foreseen penetration of the power generation from RES (Renewable Energy Sources) in the EU (European Union), underlining also the economic impact on final clients caused by generous feed in tariffs. The impact of a substantial increase of RES generation both in power and energy on the power market operation and system reliability and security are presented with practical examples from the Italian situations; e.g.: distortion of the day-ahead power market prices, critical load following requirements for conventional plants, need for additional reserve and risk of excess of non-programmable generation (“overgeneration”) in some hours, risk of dynamic stability and worsening of power quality. The main solutions to overcome the above problems are reviewed and a methodology developed by CESI is described explaining how to attain the maximum share of RES generation in a specific power system, in compliance with reliability and security standards. In authors'opinion, the technical and economic aspects must be treated together and it is mandatory to arrive quickly at agreed costs for the environmental impact of electrical infrastructures, particularly CO2 and other GHG emissions. Coherently, new RES generation and related network assets must be planned in an appropriate way to be a real asset and not a problem.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.