Annex for connection of power-generating plants LV · Web viewPlease state default relay setting values in the table below. If the default values deviate from those specified in section

December 2019

Annex for connection of power-generating plants to the low-voltage grid (≤1 kV)Type A and B

Version 1.1

Version log

VERSION LOG

Version Change Date1.0 A translated version of the

Danish Annex for Power generating plants LV, ver-sion 1.0.

29-04-2019

1.1 Annex B1.2 and B2.1 are updated, so is clear what is covered by the EN50549-1

20-12-2019

2

Table of contents

TABLE OF CONTENTS

Version log............................................................................................................................... 2

Table of contents...................................................................................................................... 3

Annex 1 Documentation for type A power-generating plants....................................................4

B1.1. Documentation for type A power-generating plants............................................................4

B1.2. Documentation for type A power-generating plants............................................................7

Annex 2 Documentation for type B power-generating plants...................................................13

B2.1. Documentation for type B power-generating plants (part 1).............................................13

B2.2. Documentation for type B power-generating plants (part 2).............................................22

3

Documentation for type A power-generating plants

ANNEX 1 DOCUMENTATION FOR TYPE A POWER-GENERATING PLANTS

B1.1. Documentation for type A power-generating plantsPlease complete the documentation with power-generating plant data and send it to the DSO.

B1.1.1. IdentificationPower-generating plant: Description of the power-generating plant:

Global Service Relation Number (GSRN number):Plant owner name and address:

Plant owner telephone number:

Plant owner e-mail address:

Type/model:

Nominal voltage (Un):

Rated power (Pn):

Primary energy source: Wind Solar

Other type of plant*

*Describe the type of plant in question

B1.1.2. Positive listIs the power-generating plant included on the positive list?

If not, please complete B1.2 as well. Yes No

4


B1.1.3. Active power control

B1.1.3.1. Power response to overfrequencyIs the frequency response function for overfrequency enabled?

If yes, what are the setting values? Frequency threshold (fRO): Droop: Delay for islanding detection (minimum response time):

Yes No

________Hz_________%________ms

B1.1.4. Reactive power control

B1.1.4.1. Power Factor controlIs the Power Factor control function enabled?

If yes, which set point is used? (Values different from cos φ 1.0 must be agreed with the DSO)

Yes No

________ cosφInductive

Capacitive

B1.1.4.2. Automatic Power Factor controlIs the automatic Power Factor control function enabled?(Must only be enabled subject to prior agreement with the DSO)

If yes, which set points are used? Set point 1 – P/Pn Set point 1 – Power Factor (inductive)Set point 2 – P/Pn Set point 2 – Power Factor (inductive)Set point 3 – P/Pn Set point 3 – Power Factor (inductive)

Yes No

________%______ cosφ________%

______ cosφ________%

______ cosφ

B1.1.4.3. Q controlIs the Q control function enabled?

If yes, which set point is used? (Values different from 0 kVAr must be agreed with the DSO)

Yes No

________kVAr

5


B1.1.5. Protection

B1.1.5.1. Relay settingsPlease state the actual values at the time of commissioning in the table below.

Protection function Symbol Setting Trip time

Overvoltage (step 2) U>> V ms

Overvoltage (step 1) U> V s

Undervoltage (step 1) U< V s

Undervoltage (step 2)* U<< V ms

Overfrequency f> Hz ms

Underfrequency f< Hz ms

Frequency change* df/dt Hz/s ms

*At least one of the functions must be enabled

B1.1.5.2. Additional requirements for grid protection of synchronous power-generating plants

Is synchronous undervoltage relay used to prevent asynchronous connection?

Yes No

B1.1.5.3. Additional relay settings for synchronous power-generating plants

Please state the actual values at the time of commissioning in the table below. Protection function Symbol Setting Trip time

Overcurrent I> A ms

Synchronous undervoltage* V ms

*If a synchronous undervoltage relay is used.

B1.1.6. SignatureDate of commissioning:

Installation contractor:

Commissioning manager:

Signature (commissioning manager): Plant owner:

Signature (plant owner):

6


B1.2. Documentation for type A power-generating plantsPlease complete the documentation with power-generating plant data and send it to the DSO.

B1.2.1. IdentificationPower-generating plant: Description of the power-gener-

ating plant:

Plant owner name and address:



Type/model:

Nominal voltage (Un):

Rated power (Pn):

Primary energy source: Wind Solar

Other type of plant*

*Describe the type of plant in question

B1.2.2. EN50549-1Is the power-generating plant in accordance with the requirements in EN50549-1?

If yes, only questions with italics have to be answered.

Demands in questions with normal letters are included in EN50549-1

Yes

No

7


B1.2.3. Normal operationIs the power-generating plant capable of starting up and maintaining continuous generation within the normal operating range, limited only by the protection settings in accordance with the requirements in sec-tion Error: Reference source not found?

Where can documentation showing that this requirement has been met be found?

Yes

No

B1.2.4. Tolerance of frequency deviationsWill the power-generating plant remain connected to the public electri-city supply grid in case of frequency deviations as specified in section Error: Reference source not found?


Yes No

Will the power-generating plant remain connected in case of frequency changes of 2.0 Hz/s at the POC?

If yes, please provide reference to documentation:

- To be filled out for synchronous plants

Yes No

Is the active power reduction during underfrequency less than the limit specified in section Error: Reference source not found?


Yes No

B1.2.5. Start-up and reconnection of a power-generating plant

B1.2.5.1. Start-up and reconnectionWill start-up and reconnection be performed more than three minutes after the voltage and frequency are within the ranges stated in section Error: Reference source not found?


Yes No

8


B1.2.5.2. Active power increase gradientDoes the power-generating plant comply with the requirement for max-imum active power increase at connection as specified in section Error:Reference source not found?


Yes No


B1.2.6.1. Power response to over frequencyIs the power-generating plant equipped with a frequency response function for overfrequency as specified in section Error: Referencesource not found?


Yes No


B1.2.7.1. Operating rangeIs the power-generating plant capable of supplying reactive power at Pn and varying operating voltages as specified in section Error: Refer-ence source not found?


Yes No

Is the power-generating plant capable of supplying reactive power when active power varies as specified in section Error: Referencesource not found?


Yes No

B1.2.7.2. Power Factor controlIs the power-generating plant equipped with a Power Factor control

9


function as specified in section Error: Reference source not found?


Yes No

B1.2.7.3. Automatic Power Factor controlIs the power-generating plant equipped with an automatic Power Factor control function as specified in section Error: Reference sourcenot found?


Yes No

B1.2.7.4. Q control Is the power-generating plant equipped with Q control function as specified in section Error: Reference source not found?


Yes No

B1.2.8. Protection

B1.2.8.1. Relay settingsPlease state default relay setting values in the table below. If the default values deviate from those specified in section Error: Reference source not found, please include docu-mentation showing that the relay settings can be adjusted to the correct values during commissioning.

Protection function Symbol Setting Trip timeOvervoltage (step 2) U>> V ms



Undervoltage (step 2) U<< V ms



Frequency change df/dt Hz/s ms

10



Is synchronous undervoltage relay used to prevent asynchronous connection? Yes

No


Please state the relay settings in the table below. Protection function Symbol Setting Trip time

Overcurrent I> A ms

Synchronous under-voltage*

V ms

*If synchronous undervoltage relay is used.

B1.2.9. Power qualityFor each power quality parameter, please specify how the result was obtained.

B1.2.9.1. Rapid voltage changesDoes the power-generating plant comply with the limit value for rapid voltage changes specified in section Error: Reference source notfound?


Yes No

B1.2.9.2. DC contentDoes the DC content during normal operation exceed 0.5% of the nominal current?


Yes No

B1.2.9.3. Current unbalanceDoes the current unbalance during normal operation exceed 16 A?


Yes No

11


Have steps been taken to ensure that the above limit is not exceeded if the power-generating plant consists of single-phase power-generating units?


Yes No

B1.2.9.4. FlickerIs the flicker contribution for the entire power-generating plant below the limit value specified in section Error: Reference source not found?


Yes No

B1.2.9.5. HarmonicsAre all the harmonics for the entire power-generating plant below the limit values specified in section Error: Reference source not found?


Yes No

B1.2.9.6. Interharmonic overtonesPlease only complete this section for power-generating plants above 50 kW.

Are all the interharmonic overtones for the entire power-generating plant below the limit values specified in section Error: Referencesource not found?


Yes No

B1.2.9.7. Distortions in the 2-9 kHz frequency rangePlease only complete this section for power-generating plants above 50 kW.

Are emissions of distortions in the 2-9 kHz frequency range less than 0.2% of the rated current In as required in section Error: Referencesource not found?


Yes No

12


B1.2.10. SignatureMust always be fill out.

Date:

Company:

Responsible:

Signature (Responsible):

13


ANNEX 2 DOCUMENTATION FOR TYPE B POWER-GENERATING PLANTS

B2.1. Documentation for type B power-generating plants (part 1)Please complete the documentation with power-generating plant data before commission-ing and send it to the DSO.

B2.1.1. IdentificationPower-generating plant name:




B2.1.2. Description of the power-generating plantType: Synchronous power-generating plant

Power park module

Primary energy source:

*Describe type:

Wind Solar Fuel

Other*

Energy conversion technology: Steam turbine Gas turbine

Combined cycle plantInternal combustion engine

Inverter-based

Fuel type, if applicable:

Manufacturer/model:

Voltage at the POC (Uc):

Nominal power (Pn):

Minimum power (Pmin):

14


Rated mechanical shaft power for drive system (Pmech) (only synchronous plants):

Is a process diagram available for the plant?

Document reference:

Yes No

Is a single-line diagram available showing settlement metering, online metering, ownership boundaries and operation manager boundaries?

Document reference:

Yes No

B2.1.2.1. Generator informationThis section can be omitted for power park modules.

Manufacturer:

Type/Model:

Does the generator comply with relevant sections of the following European standards?

- DS/EN 60034-1, ‘Rotating electrical machines – Part 1: Rat-ing and performance’, 2004

- DS/EN 60034-3 ‘Rotating electrical machines – Part 3: Spe-cific requirements for turbine-type synchronous machines’, 1995

Yes No

Is detailed generator documentation enclosed? Yes No


B2.1.2.2. Excitation systemPlease complete this section for synchronous power-generating plants.

Manufacturer:

Type/Model:

Does the excitation system comply with relevant parts of the follow-ing European standards:

15


- DS/EN 60034-16-1:2011 ‘Rotating electrical machines – Part 16: Excitation systems for synchronous machines – Chapter 1: Definitions’

- DS/CLC/TR 60034-16-3:2004 ‘Rotating electrical machines – Part 16: Excitation systems for synchronous machines – Section 3: Dynamic performance’.

Yes No

Is the power-generating plant equipped with excitation system as specified in section Error: Reference source not found? Yes

No

Is detailed excitation system documentation enclosed? Yes No


B2.1.2.3. Generator or plant transformerManufacturer:

Type/Model:

Is detailed transformer documentation enclosed?

If yes, please provide reference to documentation: Yes No

B2.1.3. EN50549-1Is the power-generating plant in accordance with the requirements in EN50549-1?

If yes, only questions with italics have to be answered.

Demands in questions with normal letters are included in EN50549-1

Yes

No

B2.1.4. Normal operationIs the power-generating plant capable of starting up and maintaining con-tinuous generation within the normal operating range, see Error: Refer-ence source not found, limited only by the grid protection settings? If yes, please provide reference to documentation:

Yes No

Does the power-generating plant remain connected during voltage phase jumps of 20 degrees at the POC? If yes, please provide reference to documentation:

Yes No

16


B2.1.5. Tolerance of frequency deviationsWill the power-generating plant remain connected to the public electricity supply grid in case of frequency deviations as specified in section Error:Reference source not found? If yes, please provide reference to documentation:

Yes No

Will the power-generating plant remain connected in case of frequency changes of 2.0 Hz/s at the POC? If yes, please provide reference to documentation:

- To be filled out for synchronous plants

Yes No

Is the active power reduction at underfrequency less than the limit spe-cified in section Error: Reference source not found?If yes, please provide reference to documentation:

Yes No

B2.1.6. Tolerance of voltage deviationsDoes the power-generating plant stay connected to the public electri-city supply grid during voltage dips as specified in section Error: Ref-erence source not found?


Yes No

Does the power-generating plant stay connected to the public electri-city supply grid during voltage swells as specified in section Error:Reference source not found?


Yes No

B2.1.6.1. Fast fault currentPlease only complete this section for power park modules.

Does the power park module supply fast fault current as specified in section Error: Reference source not found (b)?


Yes No

B2.1.7. Start-up and reconnection of a power-generating plantIs connection and synchronisation performed as specified in section Er-ror: Reference source not found?


Yes No

17


Is it possible to bypass automatic synchronisation?

If no, please provide reference to documentation: Yes No


B2.1.8.1. Frequency response – overfrequencyIs the power-generating plant equipped with a frequency response function for overfrequency as specified in section Error: Referencesource not found?


Yes No

B2.1.8.2. Absolute power limit functionIs the power-generating plant equipped with an absolute power limit function as specified in section Error: Reference source not found?


Yes No

B2.1.8.3. Ramp rate limitIs the power-generating plant equipped with ramp rate limit as spe-cified in section Error: Reference source not found?


Yes No


B2.1.9.1. Operating rangeIs the power-generating plant capable of supplying reactive power at Pn and varying operating voltages as specified in section Error: Refer-ence source not found?


Yes No

Is the power-generating plant capable of supplying reactive power when active power varies as specified in section Error: Referencesource not found?

Yes No

18



B2.1.9.2. Power Factor controlIs the power-generating plant equipped with a Power Factor control function as specified in section Error: Reference source not found?


Yes No

B2.1.9.3. Automatic Power Factor controlIs the power-generating plant equipped with an Automatic Power Factor control function as specified in section Error: Reference sourcenot found?


Yes No

B2.1.9.4. Q controlIs the power-generating plant equipped with Q control function as specified in section Error: Reference source not found?


Yes No

B2.1.10. Power qualityAre the values in the provided documentation computed values? Yes

No

Are the values in the provided documentation measured values? Yes No

Is a report documenting that the calculations or measurements comply with the emission requirements included?


Yes No

B2.1.10.1. Rapid voltage changesDoes the plant comply with the limit value for rapid voltage changes specified in section Error: Reference source not found?


Yes No

19


B2.1.10.2. DC contentPlease only complete this section for power park modules.

Does the DC content during normal operation exceed 0.5% of nominal current as specified in section Error: Reference source not found?


Yes No

B2.1.10.3. Voltage unbalancePlease only complete this section for power park modules.

Does the plant have balanced three-phase load, as specified in section Error: Reference source not found?


Yes No

B2.1.10.4. FlickerPlease only complete this section for power park modules.

Is the flicker contribution for the entire plant below the limit value specified in section Error: Reference source not found?


Yes No

B2.1.10.5. HarmonicsPlease only complete this section for power park modules.

Are all the harmonics for the entire plant below the limit values spe-cified in Error: Reference source not found?


Yes No

20


B2.1.10.6. Interharmonic overtonesPlease only complete this section for power park modules.

Are all the interharmonic overtones for the entire plant below the limit values specified in section Error: Reference source not found?


Yes No

B2.1.10.7. Distortions in the 2-9 kHz frequency rangePlease only complete this section for power park modules.

Are emissions of distortions in the 2-9 kHz frequency range less than 0.2% of In as required in section Error: Reference source not found?


Yes No

B2.1.11. ProtectionIs the plant equipped with the protection functions required in section Error: Reference source not found?


Yes No

B2.1.11.1. Islanding detectionIs the plant equipped with the protection functions required in section Error: Reference source not found?


Yes No


Please complete this section for synchronous power-generating plants.Is a synchronous undervoltage relay used? Yes

No

Is an overcurrent relay used? Yes No


B2.1.12. Requirements for information exchangeIs the power-generating plant capable of exchanging information as

21


required in section Error: Reference source not found


Yes No

B2.1.13. SignatureMust always be fill out.

Date:

Company:

Responsible:

Signature (Responsible):

22


B2.2. Documentation for type B power-generating plants (part 2)Please complete the documentation with power-generating plant data after commission-ing and send it to the DSO.

B2.2.1. IdentificationPower-generating plant name:

Global Service Relation Number (GSRN number):





B2.2.2.1. Active power control at overfrequency

Is the frequency response function for overfrequency enabled?

If yes, what are the setting values? Frequency threshold (fRO): Droop: Time for islanding detection (minimum response time):

Yes No

________Hz________%

________ms

B2.2.2.2. Absolute power limit functionIs the absolute power limit function enabled?

If yes, which set point value is used?

Yes No

Controlled on-line

________kW

23


B2.2.2.3. Ramp rate limitIs the power-generating plant ramp rate limit enabled?

If yes, which set point value is used?

Yes No

Controlled online

_____% Pn/min


B2.2.3.1. Q controlIs the Q control function enabled?

If yes, which set point is used? (Values different from 0 kVAr must be agreed with the DSO)

Yes No

Controlled online

________kVAr

B2.2.3.2. Power Factor controlIs the Power Factor control function enabled?

If yes, which set point is used? (Values different from cosφ 1.0 must be agreed with the DSO)

Yes No

Controlled online

________ cosφInductive

Capacitive

B2.2.3.3. Automatic Power Factor controlIs the automatic Power Factor control function enabled? (Must only be enabled subject to prior agreement with the DSO)

If yes, which set points are used? Set point 1 – P/Pn Set point 1 – Power Factor (inductive)

Set point 2 – P/Pn Set point 2 – Power Factor (inductive)

Set point 3 – P/Pn Set point 3 – Power Factor (inductive)

Yes No

________%______ cosφ

________%______ cosφ

________%______ cosφ

24


B2.2.4. Protection

B2.2.4.1. Relay settingsPlease state the actual values at the time of commissioning in the table below.


Overvoltage (step 2) U>> V ms





Frequency change df/dt Hz/s ms

.

B2.2.4.2. Islanding detectionAre vector jump relays or active islanding detection used? Yes

No


Please complete this section for synchronous power-generating plants.

Please state the actual relay setting values at the time of commissioning in the table be -low.


Overcurrent I> A ms

Synchronous undervoltage* V ms

*If synchronous undervoltage relay is used.

B2.2.5. SignatureDate:

Installation contractor:

Commissioning manager:

Signature (commissioning manager): Plant owner:

Signature (plant owner):

25

Documents

Annex for connection of power-generating plants LV · Web viewPlease state default relay setting values in the table below. If the default values deviate from those specified in section