Robustness Requirements for Electricity Generation Facilities

The document outlines robustness requirements for electricity generation facilities, covering fault-ride-through properties, clear time and voltage parameters for different types of generation facilities connected to both the distribution grid and transmission grid. Specific requirements for synchronous and asynchronous facilities are detailed, including voltage and time parameters for different fault scenarios.

• Robustness
• Electricity Generation
• Grid Connection
• Fault Ride Through
• Voltage Parameters

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1. APPENDIX 1.C ROBUSTNESS REQUIREMENTS FOR ELECTRICITY GENERATION FACILITIES Network Code on Requirements for Grid Connection Network Code on Requirements for Grid Connection Applicable to all Generators (RfG) Applicable to all Generators (RfG) Lars H jbjerg Nielsen This is a translation. In case of inconsistencies, the Danish version applies. 16/05118-100 02-07-2019 1

2. FUTURE ROBUSTNESS REQUIREMENTS Requirements for fault-ride-through properties Requirements for tclear and Uret for generation facilities connected to the distribution grid are described below: tclear = 250 ms applies to all generation facilities of types B and C Uret = 0.3 p.u. applies to all synchronous generation facilities of types B and C Uret = 0.15 p.u. applies to all asynchronous generation facilities of types B and C types B and C as well as type D type D types B and C as well as type D type D types B and C as well as type D type D Requirements for tclear and Uret for generation facilities connected to the transmission grid are described below: tclear = 150 ms applies to for all type D Uret = 0.0 p.u. applies to all type D The FRT requirements stated apply to both symmetrical and asymmetrical fault types. The positive voltage sequence component must be considered in any voltage evaluation. type D generation facilities connected to the transmission grid type D generation facilities connected to the transmission grid 16/05118-100 02-07-2019 2

3. FRT REQUIREMENTS FOR SYNCHRONOUS (SGPM) FACILITIES CONNECTED TO THE DISTRIBUTION GRID IN DK1 (CE) AND DK2 (N) Types B, C and D (< 110 kV) facilities Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0.3 t tclear clear: : 0.25 U Uclear clear: : 0.7 t trec1 rec1: : 0.25 U Urec1 rec1: : 0.7 t trec2 rec2: : 0.70 U Urec2 rec2: : 0.9 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 3

4. FRT REQUIREMENTS FOR ASYNCHRONOUS (PPM) FACILITIES CONNECTED TO THE DISTRIBUTION GRID IN DK1 (CE) AND DK2 (N) Types B, C and D (< 110 kV) facilities Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0.15 t tclear clear: : 0.25 U Uclear clear: : 0.15 t trec1 rec1: : 0.25 U Urec1 rec1: : 0.15 t trec2 rec2: : 0.25 U Urec2 rec2: : 0.9 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 4

5. FRT REQUIREMENTS FOR SYNCHRONOUS (SGPM) FACILITIES CONNECTED TO THE TRANSMISSION GRID IN DK1 (CE) Type D facilities connected > 110 kV Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0 t tclear clear: : 0.15 U Uclear clear: : 0.6 t trec1 rec1: : 0.15 U Urec1 rec1: : 0.6 t trec2 rec2: : 0.75 U Urec2 rec2: : 0.85 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 5

6. FRT REQUIREMENTS FOR ASYNCHRONOUS (PPM) FACILITIES CONNECTED TO THE TRANSMISSION GRID IN DK1 (CE) Type D facilities connected > 110 kV Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0 t tclear clear: : 0.15 U Uclear clear: : 0 t trec1 rec1: : 0.15 U Urec1 rec1: : 0 t trec2 rec2: : 0.15 U Urec2 rec2: : 0.85 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 6

7. FRT REQUIREMENTS FOR SYNCHRONOUS (SGPM) FACILITIES CONNECTED TO THE TRANSMISSION GRID IN DK2 (N) Type D facilities connected > 110 kV Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0 t tclear clear: : 0.15 U Uclear clear: : 0.6 t trec1 rec1: : 0.15 U Urec1 rec1: : 0.6 t trec2 rec2: : 0.75 U Urec2 rec2: : 0.9 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 7

8. FRT REQUIREMENTS FOR ASYNCHRONOUS (PPM) FACILITIES CONNECTED TO THE TRANSMISSION GRID IN DK2 (N) Type D facilities connected > 110kV Voltage parameters (pu) Voltage parameters (pu) Time parameters [seconds] Time parameters [seconds] U Uret ret: : 0 t tclear clear: : 0.15 U Uclear clear: : 0 t trec1 rec1: : 0.15 U Urec1 rec1: : 0 t trec2 rec2: : 0.15 U Urec2 rec2: : 0.9 t trec3 rec3: : 1.5 16/05118-100 02-07-2019 8