1st Workshop Federal Grid Code

Transcription

1 1st Workshop Federal Grid Code Implementation European Network Codes Elia Empereur Brussels, 22 September 2017

2 Planning of the day 8:30 Welcome and coffee 8:45 Introduction and General Requirements 10:30 Break 10:45 Federal Grid Code (Part I) 12:30 Lunch 13:30 Federal Grid Code (Part II) 16:30 End 1st Workshop Federal Grid Code 2

3 Agenda topics Introduction Presentation Planning and context Hans Vandenbroucke General Requirements Introduction to General Requirements Presentation draft General Requirements proposal for NC RfG Federal Grid Code Connection aspects Thresholds ABCD: categories of grid users Notion of new installation Derogation principle Embedded generation Capacity reservation Connection requirements : global approach for non-exhaustive requirements for new grid users Connection requirements : Short-Circuit Power, Robustness & Fault Ride Through, Protection and Control (incl. appendix 2) Offshore (limited to connection aspects) Generalities (without definitions) Hans Vandenbroucke Fortunato Villella Isabelle Gerkens Thierry D hoore Thierry D hoore and Michaël Hunt 1st Workshop Federal Grid Code 3

4 1. Introduction

5 Indicative planning and agenda workshops with focus on Federal Grid Code and general requirements Task Force Implementation Network Codes has ended. 4 dedicated workshops for discussing: Federal Grid Code impact and amendment proposals Progress on general requirements All interested parties are welcome. All workshop material will be distributed prior to the workshop allowing preparation by all parties + everything will be published on elia.be Workshop 1 22/9/2017 Workshop 2 23/11/2017 Workshop 4 7/2/2018 Public consultation limits ABCD 19/5/ /6/2017 Workshop 3 18/12/2017 Public consultation FTR and Gen Req. 3/2018 4/2018 mei jul sep nov 2018 mrt mei /6/2017 WG BG 04/9/2017 WG BG 07/11/2017 WG BG Normal WG BG meetings Normal WG Bal meetings Normal WG EMD/SO meetings 17/5/2018 Submission: FTR proposal general req. ABCD proposal The normal UG Working Groups can work in support of the FTR workshops, e.g. for discussing topics for which it is too early to discuss concrete amendment proposals (e.g. non-nc wish-list ). 1st Workshop Federal Grid Code 5

6 Preview of the next workshops: indicative planning Workshop Workshop 2 23 Nov 2017 Workshop 3 18 Dec 2017 Workshop 4 7 Feb 2018 Topics to be presented 1. Feedback from previous workshop 2. Federal Grid Code: mainly market related aspects, such as: Balancing, BRP, ancillary services, access CACM/FCA CDS (aspects not related connection based on Position Paper CDS) Metering Definitions Ad hoc points 3. Technical discussion general requirements 1. Feedback from previous workshops 2. Federal Grid Code, mainly on connection, DSO Connection-related aspects (continued from workshop 1) CDS (connection-related aspects) Storage requirements HVDC DSO aspects E&R Ad hoc points 3. Technical discussion general requirements 1. Feedback from previous workshops 2. Track change proposals Definitions (& generalities) Ad hoc points 3. Technical discussion general requirements 1st Workshop Federal Grid Code 6

7 2. General Requirements

8 General Requirements: scope General Requirements need to be submitted for the connection codes only (RfG, DCC and HVDC) The (similar) regulatory aspects are described in NC RfG (Art. 7), NC DCC (Art. 6) and NC HVDC (Art. 5). More specifically: RfG Art. 7(4) DCC Art. 6(4) HVDC Art. 5(4) The relevant system operator or TSO shall submit a proposal for requirements of general application, or the methodology to calculate or establish them, for approval by the competent entity within two years of entry into force of this Regulation The term general requirements is often used while a proposal for requirements of general application, or the methodology used to calculate them is meant Submitting a proposal for general requirements is a Network Code requirement to be met by each relevant system operator 1st Workshop Federal Grid Code 8

9 The relevant system operator or TSO shall submit Who is relevant system operator or TSO? ENTSO-E has published in November 2016 an implementation guidance document for national implementation for network codes on grid connection containing parameters of non-exhaustive requirements: o o This document lists all non-exhaustive requirements for the three connection codes together with their parameters and indicates who shall make a proposal as relevant system operator Elia uses this document as reference to draft the General Requirements proposal Relevant system operators are (, depending on the requirement): o o Elia as relevant TSO DSOs (this includes CDSOs as these are considered as DSOs in the Network Codes) 1st Workshop Federal Grid Code 9

10 a proposal for requirements of general application, or the methodology to calculate or establish them, What should this proposal contain? The connection Network Codes contain both exhaustive (fix value) and non-exhaustive (range or degrees of freedom) requirements Elia refers to the ENTSO-E IGD for a list of all non-exhaustive requirements per CNC (cfr. Previous slide) Proposal for General Requirements = proposal for the implementation of non-exhaustive requirements For example (NC RfG Art. 13(1)(a.), Tabel 2): 1st Workshop Federal Grid Code 10

11 for approval by the competent entity Who is the competent entity? The federal and regional competences have to be respected when submitting the proposal for General Requirements o o Federal: FOD/SPF or CREG (to be determined by them who is the competent entity/authority) Regional: regulators/governments cfr. next slide for the federal and regional competences in Belgium Concretely, this means that a proposal for General Requirements will have to be sent to at least one competent entity According to the NC, competent entities shall take decisions within 6 months following the receipt of general requirements proposals (RfG 7(6); DCC 6(6); HVDC 5(6)) 1st Workshop Federal Grid Code 11

12 for approval by the competent entity federal and regional competences in Belgium Regulation Regulators TSO European Directives Network Codes (Regulation) (ACER) ENTSO E Electricity Act Royal Decrees Federal Technical Regulation (grid code) CREG 380 kv 150 kv Elia Regional Decrees Regional reglementation Technical regulation for DSO/PVN grid (grid code) Technical regulation for managing regional/dso grid (grid code) Technical regulation for managing local/dso grid (grid code) VREG BRUGEL CWAPE 70 kv 30 kv 15 kv 230 V 1st Workshop Federal Grid Code

13 for approval by the competent entity Requirement for relevant system operator Federal competent entity: Relevant System Operator: FOD/CREG Elia DSO CDSO Proposal for General Requirements: NC RfG NC DCC NC HVDC Regional competent entity: Regional regulators/governments 1st Workshop Federal Grid Code 13

14 within two years of entry into force of this Regulation. When to submit the proposal for general requirements? Entry into force of the NC + 2 years after entry into force NC RfG 17 May May 2018 NC DCC 7 Sept Sept 2018 NC HVDC 28 Sept Sept 2018 Elia will submit on 17 May 2018: Adaptation proposal FTR Proposal on limits ABCD General requirements RfG + DCC + HVDC The deadline of 17 May 2018 is in line with the vision of the FOD/SPF on the proces and next steps for implementing the Network Codes and adapting the Federal grid Code, as presented in the WG Belgian Grid on 7 March st Workshop Federal Grid Code 14

15 General Requirements: to-the-point Concept and structure of the document The General Requirements are not part of or are not identical to the adapted Federal Grid Code proposal. General Requirements is an exhaustive, technical and explanatory document (different from a legal text) containing at least the implementation proposal of the nonexhaustive requirements but may also contain some extra information (such as exhaustive requirements) to increase the understanding of the document The structure of the GR is similar to the technical summary that was sent earlier. The documents are structured per Significant Grid User (e.g. Types A, B, C and D) and per requirement (e.g. Reactive Power). The document serves as input for the adaptation of regional grid codes, contracts and other regulatory documents 1st Workshop Federal Grid Code 15

16 General Requirements: to-the-point Cooperation with DSOs and CDSOs With different competent authorities, different submission dates and links with many different grid codes and contracts an alignment with DSOs and CDSOs is aimed for Objective: to avoid complexity, to simplify the regulatory structure for grid users 1st Workshop Federal Grid Code 16

17 General Requirements: to-the-point Planning towards 17 May 2018 A public consultation on the general requirements proposal is not required by the NC, but system operators shall consult with relevant DSOs. (RfG 7(3)(e); DCC 6(3)(e); HVDC (3)(e)) Elia will organise a public consultation for the adapted Federal Grid Code proposal and General Requirements proposals 1 st Workshop 22/09/ nd Workshop 23/11/ rd Workshop 18/12/ th Workshop 07/02/2018 NC RfG NC DCC NC HVDC Presentation draft GR document Presentation update draft GR document Presentation update draft GR document Presentation final (draft) GR document N/A Presentation draft GR document Presentation update draft GR document Presentation final (draft) GR document N/A N/A Presentation draft GR document Presentation final (draft) GR document 1st Workshop Federal Grid Code 17

18 General Requirements: summary RfG Art. 7(4) DCC Art. 6(4) HVDC Art. 5(4) The relevant system operator or TSO shall submit a proposal for requirements of general application, or the methodology to calculate or establish them, for approval by the competent entity within two years of entry into force of this Regulation Relevant system operator or TSO = Elia refers to the ENTSO-E IGD for network codes on grid connection In this document all non-exhaustive requirements are mentioned together with the parameters to be defined and the proposing relevant system oprator. An alignment with (C)DSOs is aimed for! Proposal for General Requirements = proposal for federal/regional implementation of the nonexhaustive requirements in the Network Codes Approval by competent authority = FOD or CREG or regional regulators (dependent on competency) With 2 years of entry into force of the connection code: Entry into force + 2 years NC RfG 17 May May 2018 NC DCC 7 Sept Sept 2018 NC HVDC 28 Sept Sept st Workshop Federal Grid Code Elia will submit on 17 May 2018: Adaptation proposal FTR Proposal on limits ABCD General requirements RfG + DCC + HVDC 18

19 3. Draft General Requirements RfG

20 Technical summary General requirements What is it today? Synthesis of the technical proposal (Elia) Focus on NC RfG (similar approach will be undertaken for DCC+HVDC) Legal reference What will never be track-change Federal grid code is and remains the only legal the reference Focus on cost-impacting requirements Current (partial) final proposal of Elia Document to support discussions with the stakeholders What will become? General requirements technical document Covers all non-exhaustive requirements Rules of the game No official approval of the document is expected by the stakeholders during the process Constructive feedbacks with counter-proposals are fundamental to obtain a fruitful process Exhaustive requirement covered if needed to improve readability 1st Workshop Federal Grid Code 20

21 Technical overview document - Current content 2017 feb mrt apr mei jun 2017 TF Impl NC 2nd SGU Iteration Consultation ABCD SGU Technical Summary (27 Jan 2017) link Consultation document ABCD limits (19 May 2017) link Comments from stakeholders & position papers Draft proposal General Requirements NC RfG 1st Workshop Federal Grid Code 21

22 Proposal on limits ABCD (reminder) Graphical representation of the proposed limits considering the adaptation of requirements for units of type D smaller than 25MW 1st Workshop Federal Grid Code 22

23 Proposal on limits ABCD Derogations (reminder) Limit A/B: 250 kw, including the following derogations for the segment 250 kw-1 MW: Derogation 250 kw 1 MW Art Fault-Ride Through Art post fault active power recovery Art robustness 1st Workshop Federal Grid Code 23

24 Capabilities above the minimum requirements NC RfG and General requirements define minimum capabilities and functions to be implemented for new installations The installation may have capabilities beyond the minimum required per RfG and general requirements (with no additional cost for the investor) e.g. compliant to a standard Important that the Relevant System Operator is aware of the effective capabilities of the installations If capabilities are existing for installation, they should be put at disposal and commmunicated towards the relevant system operator 1st Workshop Federal Grid Code 24

25 Frequency requirements ENTSO/e process Save the date 3 rd Public Workshop on Frequency Stability Parameters Brussels on 4 th October 2017 ELIA strongly recommends the stakeholders to take active part of the ENTSO-e process and to raise concerns also via Elia if necessary. 1st Workshop Federal Grid Code 25

26 Frequency requirements Type A (B+C+D) Original Proposal (in Technical Summary): Updated proposal: ENTSO/e CE alignment Frequency range withstand capability [Art (a)] Rate Of Change Of Frequency (ROCOF) withstand capability [Art 13.1(b)] Limited Frequency Sensitive Mode Over frequency (LFSM-O) [Art (a)] Admissible maximum power reduction with falling frequency [Art. 13-4] Automatic reconnection [Art 13-7] Site-specific To be defined on a case by case principle by the relevant system operator: TSO, DSO or CDSO taking into account the characteristic of the installation and of the network Logical interface to cease active power injection [Art 13-6] (does not apply to type B,C and D) 1st Workshop Federal Grid Code 26

27 Frequency requirements Type B+C+D Original proposal (in Technical Summary): C-D ENTSO/e alignment Limited frequency sensitive mode under frequency (LFSM- U) [Art (c)] Frequency Sensitive Mode [Art d] Site-specific To be defined on a case by case principle by the relevant system operator: TSO, DSO or CDSO taking into account the characteristic of the installation and of the network B-C-D Remote control of active power [Art 14-2] C-D Rates of change of active power output [Art 15-6.e] defined in coordination with the TSO C Updated proposal: Others Real-time monitoring of FSM [Art 15-2.g] Frequency restoration control [Art 15-2.e] Defined coherently as per the System Operation Guidelines (Article 47) [9] and currently applicable contractual requirement of Elia. 1st Workshop Federal Grid Code 27

28 Reactive Power Type B PPM & SPGM Original Proposal: Updated proposal: All SPGM SPGM + PPM<2MW PPM>=2MW All PPM For PPM & SPGM, difficulties to support with reactive power when at limited active power production and in absorption adapted the shape of the reactive power and reduced the ranges 1st Workshop Federal Grid Code 28

29 Voltage control SPGM type B Original Proposal (Technical Summary) Updated proposal: Elia proposes only two control modes retained for SPGM : Qfix and Q(U) in line with comments of the stakeholders & NC RfG 1st Workshop Federal Grid Code 29

30 Reactive Power Type C & D - SPGM Original Proposal Updated proposal Difficulties of type C&D to absorb reactive power Max range of reactive power is reduced to 70% instead of 80% 1st Workshop Federal Grid Code 30

31 FRT characteristics for type B & C SPGM Voltage [pu] 1 0,9 0,8 0,7 0,6 0,5 0,4 0,3 Proposal LVRT vs NC PGM Type B&C 0,2 0,1 0-0,5 0,5 1,5 2,5 Time [s] Current LVRT NC less stringent NC most stringent Proposal Shared document by the stakeholder shows that for a remaining voltage of 30%, the aero derivative units are able to maintain synchronism. 1st Workshop Federal Grid Code 31

32 FRT characteristics for type D SPGM Proposal FRT vs NC SPGM Type D 1,1 1 0,9 0,8 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0-0,5 0,5 1,5 2,5 Time [s] Voltage [pu] Current FRT Current LVRT Proposal Stakeholders underline the difficulty for small aeroderivative units (GE LM6000) to comply with this characteristic (remaining voltage of 0%) 1st Workshop Federal Grid Code 32