This document specifies the technical requirements for the protection functions and the operational capabilities for generating plants, intended to operate in parallel with LV distribution networks.<\/p>\n
For practical reasons this document refers to the responsible party where requirements have to be defined by an actor other than the DSO e.g. TSO, member state, regulatory authorities according to the legal framework. Typically the DSO will inform the producer about these requirements.<\/p>\n
\nNOTE 1 This includes European network codes and their national implementation, as well as additional national regulations.<\/p>\n
NOTE 2 Additional national requirements especially for the connection to the distribution network and the operation of the generating plant may apply.<\/p>\n<\/blockquote>\n
The requirements of this European Standard apply, irrespective of the kind of energy source and irrespective of the presence of loads in the producer\u2019s network, to generating plants, generating modules, electrical machinery and electronic equipment that meet all of the following conditions:<\/p>\n
\n
- \n
converting any energy source into AC electricity;<\/p>\n<\/li>\n
- \n
generating modules capacity of type B or smaller according to COMMISSION REGULATION (EU) 2016\/631 while considering national implementation for the decision regarding power limits between A and B types and B and C types;<\/p>\n<\/li>\n
- \n
connected to and operated in parallel with an AC LV distribution network.<\/p>\n<\/li>\n<\/ul>\n
\nNOTE 3 Generating plants connected to a MV distribution network fall into the scope of EN 50549\u20132.<\/p>\n
NOTE 4 Electrical energy storage systems (EESS) in meeting the conditions above are included<\/p>\n<\/blockquote>\n
If generating modules of different type (A or B) are combined in one plant, different requirements apply for the different modules based on the type of each module.<\/p>\n
EXAMPLE: If a generating plant consists of multiple generating modules (see 3.2.1), according to COMMISSION REGLUATION (EU) 2016\/631 the situation might occur, that some generating modules are of type A and some are of type B.<\/p>\n
Unless specified otherwise by the DSO and the responsible party, generating plants connected to a medium voltage distribution network with a maximum apparent power up to 150 kVA can comply with this European Standard as alternative to the requirements of EN 50549-2. A different threshold may be defined by the DSO and the responsible party.<\/p>\n
This document recognizes the existence of specific technical requirements (e.g. grid codes) of the DSO or another responsible party within a member state and these must be complied with.<\/p>\n
Excluded from the scope are:<\/p>\n
\n
- \n
the selection and evaluation of the point of connection;<\/p>\n<\/li>\n
- \n
power system impact assessment e.g. assessment of effects on power quality, local voltage increase, impact on line protections operation;<\/p>\n<\/li>\n
- \n
connection assessment, the set of technical verifications made as part of the planning of the connection;<\/p>\n<\/li>\n
- \n
island operation of generating plants, both intentional and unintentional, where no part of the distribution network is involved;<\/p>\n<\/li>\n
- \n
four-quadrant rectifier of drives feeding breaking energy back into the distribution network for limited duration with no internal source of primary energy;<\/p>\n<\/li>\n
- \n
uninterruptible power supply with duration of parallel operation limited to 100 ms;<\/p>\n<\/li>\n<\/ul>\n
\nNOTE 5 Parallel operation due to maintenance of uninterruptible power supply units is not seen as part of normal UPS operation and therefore not considered in this document.<\/p>\n<\/blockquote>\n
\n
- \n
requirements for the safety of personnel as they are already adequately covered by existing European Standards.<\/p>\n<\/li>\n
- \n
the connection of a generating unit, module or plant into a DC network<\/p>\n<\/li>\n<\/ul>\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n undefined <\/td>\n<\/tr>\n \n 10<\/td>\n 1 Scope <\/td>\n<\/tr>\n \n 11<\/td>\n 2 Normative references
3 Terms and definitions
3.1 General <\/td>\n<\/tr>\n\n 13<\/td>\n 3.2 Plant, module and unit <\/td>\n<\/tr>\n \n 16<\/td>\n 3.3 Power <\/td>\n<\/tr>\n \n 17<\/td>\n 3.4 Voltage <\/td>\n<\/tr>\n \n 18<\/td>\n 3.5 Circuit theory <\/td>\n<\/tr>\n \n 20<\/td>\n 3.6 Protection <\/td>\n<\/tr>\n \n 24<\/td>\n 3.7 Control <\/td>\n<\/tr>\n \n 25<\/td>\n 4 Requirements on generating plants
4.1 General <\/td>\n<\/tr>\n\n 26<\/td>\n 4.2 Connection scheme
4.3 Choice of switchgear
4.3.1 General
4.3.2 Interface switch <\/td>\n<\/tr>\n\n 27<\/td>\n 4.4 Normal operating range
4.4.1 General
4.4.2 Operating frequency range <\/td>\n<\/tr>\n\n 28<\/td>\n 4.4.3 Minimal requirement for active power delivery at underfrequency <\/td>\n<\/tr>\n \n 29<\/td>\n 4.4.4 Continuous operating voltage range
4.5 Immunity to disturbances
4.5.1 General
4.5.2 Rate of change of frequency (ROCOF) immunity <\/td>\n<\/tr>\n\n 30<\/td>\n 4.5.3 Under-voltage ride through (UVRT)
4.5.3.1 General
4.5.3.2 Generating plant with non-synchronous generating technology <\/td>\n<\/tr>\n\n 31<\/td>\n 4.5.3.3 Generating plant with synchronous generating technology
4.5.4 Over-voltage ride through (OVRT) <\/td>\n<\/tr>\n\n 32<\/td>\n 4.6 Active response to frequency deviation
4.6.1 Power response to overfrequency <\/td>\n<\/tr>\n\n 35<\/td>\n 4.6.2 Power response to underfrequency <\/td>\n<\/tr>\n \n 38<\/td>\n 4.7 Power response to voltage changes
4.7.1 General
4.7.2 Voltage support by reactive power
4.7.2.1 General
4.7.2.2 Capabilities <\/td>\n<\/tr>\n\n 40<\/td>\n 4.7.2.3 Control modes <\/td>\n<\/tr>\n \n 43<\/td>\n 4.7.3 Voltage related active power reduction
4.7.4 Short circuit current requirements on generating plants
4.7.4.1 General
4.7.4.2 Generating plant with non-synchronous generating technology <\/td>\n<\/tr>\n\n 44<\/td>\n 4.7.4.3 Generating plant with synchronous generating technology – Synchronous generator based units
4.8 EMC and power quality <\/td>\n<\/tr>\n\n 45<\/td>\n 4.9 Interface protection
4.9.1 General <\/td>\n<\/tr>\n\n 46<\/td>\n 4.9.2 Void <\/td>\n<\/tr>\n \n 47<\/td>\n 4.9.3 Requirements on voltage and frequency protection
4.9.3.1 General
4.9.3.2 Undervoltage protection [27] <\/td>\n<\/tr>\n\n 48<\/td>\n 4.9.3.3 Overvoltage protection [59]
4.9.3.4 Overvoltage 10 min mean protection
4.9.3.5 Underfrequency protection [81 < ] <\/td>\n<\/tr>\n\n 49<\/td>\n 4.9.3.6 Overfrequency protection [81 > ]
4.9.4 Means to detect island situation
4.9.4.1 General
4.9.4.2 Active methods tested with a resonant circuit
4.9.4.3 Switch to narrow frequency band (see Annex E and Annex F) <\/td>\n<\/tr>\n\n 50<\/td>\n 4.9.5 Digital input to the interface protection
4.10 Connection and starting to generate electrical power
4.10.1 General
4.10.2 Automatic reconnection after tripping
4.10.3 Starting to generate electrical power <\/td>\n<\/tr>\n\n 51<\/td>\n 4.10.4 Synchronization
4.11 Ceasing and reduction of active power on set point
4.11.1 Ceasing active power
4.11.2 Reduction of active power on set point
4.12 Remote information exchange <\/td>\n<\/tr>\n\n 52<\/td>\n 4.13 Requirements regarding single fault tolerance of interface protection system and interface switch <\/td>\n<\/tr>\n \n 53<\/td>\n Annex A (informative) Interconnection guidance
A.1 General
A.2 Network integration <\/td>\n<\/tr>\n\n 54<\/td>\n A.3 Clusters of single-phase generating units <\/td>\n<\/tr>\n \n 55<\/td>\n Annex B (informative)Void <\/td>\n<\/tr>\n \n 56<\/td>\n Annex C (informative) Parameter Table <\/td>\n<\/tr>\n \n 61<\/td>\n Annex D (informative)List of national requirements applicable for generating plants <\/td>\n<\/tr>\n \n 63<\/td>\n Annex E (informative)Loss of Mains and overall power system security <\/td>\n<\/tr>\n \n 64<\/td>\n Annex F (informative)Examples of protection strategies
F.1 Introduction
F.1.1 General
F.1.2 Generalities
F.1.3 Detection of unwanted islands <\/td>\n<\/tr>\n\n 65<\/td>\n F.1.4 Problems with uncontrolled islanding in MV networks
F.1.4.1 Safety
F.1.4.2 Grid parameters
F.1.4.3 Reclosing operations
F.1.4.4 Protection of islands against overcurrents
F.1.4.5 Protection against phase to earth faults <\/td>\n<\/tr>\n\n 66<\/td>\n F.2 Example strategy 1 <\/td>\n<\/tr>\n \n 69<\/td>\n F.3 Example strategy 2 <\/td>\n<\/tr>\n \n 71<\/td>\n Annex G (normative)Abbreviations <\/td>\n<\/tr>\n \n 72<\/td>\n Annex H (informative)Relationship between this European standard and the COMMISSION REGULATION (EU) 2016\/631 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Requirements for generating plants to be connected in parallel with distribution networks – Connection to a LV distribution network. Generating plants up to and including Type B<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2019<\/td>\n 74<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":245029,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[530,2641],"product_tag":[],"class_list":{"0":"post-245024","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-160-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/245024","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/245029"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=245024"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=245024"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=245024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}