IEC 62933-1:2018 pdf download

IEC 62933-1:2018 pdf download.Electrical energy storage (EES) systems – Part 1: Vocabulary
1 Scope
This part of IEC 62933 defines terms applicable to electrical energy storage (EES) systems including terms necessary for the definition of unit parameters, test methods, planning, installation, safety and environmental issues. This terminology document is applicable to grid-connected systems able to extract electrical energy from an electric power system, store it internally, and inject electrical power to an electric power system. The step for charging and discharging an EES system may comprise an energy conversion.
2 Normative references
There are no normative references in this document.
3 Terms and definitions for EES systems classification
3.1 electrical energy storage EES installation able to absorb electrical energy, to store it for a certain amount of time and to release electrical energy during which energy conversion processes may be included EXAMPLE A device that absorbs AC electrical energy to produce hydrogen by electrolysis, stores the hydrogen, and uses that gas to produce AC electrical energy is an electrical energy storage. Note 1 to entry: The term “electrical energy storage” may also be used to indicate the activity that an apparatus, described in the definition, carries out when performing its own functionality. Note 2 to entry: The term “electrical energy storage” should not be used to designate a grid-connected installation, “electrical energy storage system” is the appropriate term.3.2 electrical energy storage system EES system EESS grid-connected installation with defined electrical boundaries, comprising at least one electrical energy storage, which extracts electrical energy from an electric power system, stores this energy internally in some manner and injects electrical energy into an electrical power system and which includes civil engineering works, energy conversion equipment and related ancillary equipment Note 1 to entry: The EES system is controlled and coordinated to provide services to the electric power system operators or to the electric power system users. Note 2 to entry: In some cases, an EES system may require an additional energy source (non electrical) during its discharge, providing more energy to the electric power system than the energy it stored (compressed air energy storage is a typical example where additional thermal energy is required). Note 3 to entry: ”electric power system” is defined in IEC 60050-601 :1 985, 601 -01 -01 .3.3 utility grid part of an electric power network that is operated by a utility or grid operator within a defined area of responsability Note 1 to entry: Utility grid is normally used for electricity transfer from or to grid users or other grids. The grid users can be electricity producers or consumers. The area of responsability is fixed by national legislation or regulation. Note 2 to entry: “electric power network” is defined in IEC 60050-601 :1 985, 601 -01 -02. 3.4 grid-connected, adj connected to an electric power system Note 1 to entry: ”electric power system” is defined in IEC 60050-601 :1 985, 601 -01 -01 . 3.5 low voltage EESS EES system designed to be connected to a low voltage primary POC Note 1 to entry: Low voltage (abbreviated term: LV) is defined in IEC 60050-601 :1 985, 601 -01 -26. 3.6 medium voltage EESS EES system designed to be connected to a medium voltage primary POC Note 1 to entry: Medium voltage (abbreviated term: MV) is defined in IEC 60050-601 :1 985, 601 -01 -28. 3.7 high voltage EESS EES system designed to be connected to a high voltage primary POC Note 1 to entry: High voltage (abbreviated term: HV) is defined in IEC 60050-601 :1 985, 601 -01 -27. 3.8 residential EESS EES system designed for residential customer applications, excluding commercial, industrial or other professional activities Note 1 to entry: A residential EES system is normally compliant with the applicable standards for residential devices (e.g. electromagnetic compatibility), tipically, its rated apparent power does not exceed the household installed power. Note 2 to entry: ”residential customer” is defined in IEC 60050-61 7:2009, 61 7-02-05.