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IEC 62934-2021 pdf free

IEC 62934-2021 pdf free.Gird integration of renewable energy generation – Terms and definitions.
This terminology document provides terms and definitions in the subject area of grid integration of renewable energy generation. The technical issues of grid integration mainly focus on the issues caused by renewable energy generation with variable sources and/or converter based technology, such as wind power and photovoltaic power generation. Some renewable energy generations such as hydro power and biomass power with a relatively continuously available primary energy source and a rotating generator are conventional sources of generation, and are therefore not covered in this document.
The intention of this document is to answer the question “what do the words mean” and not “under what conditions do the terms apply”.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions for renewable energy generation
3.1.1 renewable energy RE primary energy, the source of which is constantly replenished and will not become depleted
Note 1 to entry: Examples of renewable energy are: wind, solar, geothermal, hydropower, etc.
Note 2 10 entry: Fossil fuels are non renewable.
(SOURCE: IEC 60050-617:2009,617-04-11 modified, examples of renewable energy are added in Note 1 to entry.”J
3.1.2 variable renewable energy VRE subset of renewable energy, the source of which is not continuously available and cannot be stored or controlled.
3.1.3 renewable energy generation
generation of electrical energy, which uses renewable energy as the primary energy source for the conversion into electricity
3.1.4 variable renewable energy generation
subset of renewable energy generation, which uses variable renewable energy as the primary energy source for the conversion into electricity
EXAMPLE Wind power generation, photovoltaic power generation, concentrated solar power generation, wave power generation.
Note 1 to entry: The primary energy from variable renewable energy sources is in most cases not able to be stored and therefore the electricity generated is constrained by the availability of the energy source.
3.1.5 renewable energy generating unit REGU smallest set of equipment which can generate electricity from renewable energy and can feed the electricity into an electric power network
Note 1 to entry: Several typical forms of renewable energy generating unit are shown in Annex A.
3.1.6 renewable energy power plant collection of renewable energy generating units connected to an electric power network through one or more points of connection, including auxiliaries and connection equipment
Note 1 to entry: Two typical forms of renewable energy power plant are shown in Annex A.
3.1.7 power collection system <renewable energy power plant> electrical system that collects the electricity from at least one renewable energy generating unit and feeds this electricity into an electric power network, usually comprising transformers and overhead lines or cables.IEC 62934 pdf free download.

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