Comitatodi studio B4

Transcript

1 Comitatodi studio B4 SC B4 HVDC AND POWER ELECTRONIC EQUIPMENT CIGRE Comitato Nazionale Italiano Riunione del 29 Ottobre 2012 General session e SC meeting 2012

2 SC B4 Scopo: HVDC: economics of HVDC, applications, planning aspects, design, performance, control, protection, control and testing of converter stations, i.e. the converting equipment itself and also the equipment associated with HVDC links. Power Electronic for AC systems and Power Quality Improvement: economics, applications, planning, design, performance, control, protection, construction and testing. SC B4 copre aspetti tecnici, economici, ambientali e di asset management 2

3 Presidente: Bjarne Andersen (Regno Unito) Segretario: Stig Nilsson (USA) Membership (in crescita): 24 membri regolari 11 membri osservatori Membro italiano: Antonio Ardito 4 ADVISORY GROUPS (di cui due nuovi creati nel meeting) AG01 Strategic Advisory Group (Stig Nilsson) AG02 DC Grid Coordination (nuovo) (Mohamed Rashwan) AG03 Communication and website (nuovo) (Nalin Pahalawaththa) AG04 HVDC System Performance (Narinder Dhaliwal) 15 Working Groups attivi, di cui 2 joint 3

4 Ref. Comitato di studio B4 Title Creation- Disbanding WG B4-38 Simulation of HVDC and FACTS WG B4-47 Special Issues in AC Filter Specification for HVDC WG B4-49 WG B4-51 Performance Evaluation and Applications Review of Existing Thyristor Control Series Compensation Devices Study of Converter Voltage Transients Imposed on the HVDC Converter Transformers WG B4-52 HVDC Grid Feasibility Study JWG C4/C1/B4-604 Influence of Embedded HVDC Transmission on System Security and AC Network Performance WG B4-53 Guidelines for Procurement and Testing of STATCOMs WG B4-54 Guidelines For Life Extension of Existing HVDC Systems

5 Ref. Comitato di studio B4 Title Creation- Disbanding WG B4-55 HVDC Connection of Offshore Wind Power Plants WG B4-56 Guidelines for Preparation of Connection Agreements or Grid Codes for HVDC Grids WG B4-57 Guide for the Development of Models for HVDC Converters in a HVDC Grid WG B4-58 JWG B4/B5-59 WG B4-60 Devices for Load flow Control and Methodologies for Direct Voltage Control in a Meshed HVDC Grid Control and Protection of HVDC Grids Designing HVDC Grids for Optimal Reliability and Availability Performance WG B4-61 General Guidelines for HVDC Electrode Line

6 WGs che hanno concluso i loro lavori (disbanded): JWG B4/B2/C3-50 Electric Field and Ion Current Environment of HVDC Overhead Transmission Lines TB 473 pubblicata in Agosto 2011 WG B4-44 HVDC Environmental Planning Guidelines (membro italiano Maria Rosaria Guarniere): TB 508 pubblicata in Ottobre 2012 WG B4-46 Voltage Source Converter (VSC) HVDC for power transmission Economic Aspects and comparison with other AC and DC technologies TB 492 pubblicata in Aprile

7 Partecipazione italiana ai WGs WG B4-58 Devices for Load flow Control and Methodologies for Direct Voltage Control in a Meshed HVDC Grid : Angelo L Abbate WG B4/B5-59 Control and Protection of HVDC Grids : Andrea Pitto WG B4-60 Designing HVDC Grids from Optimal Reliability and Availability Performance : Gianluigi Migliavacca, Angelo L Abbate WG B4-61 General Guidelines for HVDC Electrode Line : Massimo Marzinotto 7

8 Nuovi WGs proposti, sui quali non è stata presa alcuna decisione per ora: 1. Update of TB 205 Fire Aspects of VSC HVDC 2. Update of TB 113 Testing of HVDC Valves 3. Recommended DC Voltage and Converter Topologies for HVDC Grids (JWG) 4. HVDC Grid Fault Currents and Functional Specification for HVDC Breakers (already covered by JWG B4/B5-59) 5. DC/DC Converters for HVDC Grids 6. Insulation Co-ordination for HVDC Grids 7. Connection of Wind Farms to weak ac networks 8. Impact of AC System Characteristics on the Performance of HVDC schemes 9. Functional Performance Requirements for Plug and Play converter stations for HVDC Grids 10.Commissioning of VSC HVDC schemes 11.Commissioning and Testing of HVDC Grids 8

9 Soggetti preferenziali proposti al Comitato Tecnico per la General Session 2014 PS 1. HVDC o HVDC Project Planning, Environmental and Regulatory issues o HVDC for Integration of Renewable Resources o HVDC Technology Development including HVDC Grids o HVDC Project Implementation and Service Experience PS 2. FACTS o FACTS Project planning, Environmental and Regulatory issues o FACTS for Integration of Renewable Resources o FACTS for increased network performance o FACTS Project Implementation and Service experience PS 3. Other Power Electronic Applications o Converters for Renewable generation o Converters for Energy Storage 9

10 Risultati tecnici principali della Session 2012 Preferential subjects HVDC and FACTS Schemes 1.1 Project planning, including environmental and regulatory issues 1.2 Schemes recently completed or under construction 1.3 Service experience of VSC HVDC, LCC HVDC and UHVDC schemes 2. HVDC and FACTS Technology Developments 2.1 HVDC converter stations 2.2 FACTS equipment 2.3 UHVDC equipment 3. Applications of HVDC and FACTS 3.1 HVDC grids and multi-terminal HVDC systems 3.2 FACTS equipment for increased AC network performance 3.3 Embedded HVDC systems, including AC lines converted to HVDC operation, for increased network capacity and performance 3.4 Use of Power Electronics to facilitate the integration of large renewable energy sources into AC networks 10

11 Risultati tecnici principali della Session 2012 Non sono emerse tematiche nuove rispetto alle passate Sessioni; solo approfondimenti: Continuano e nascono nuovi progetti di «revamping/refurbishment» e potenziamento di vecchi impianti HVDC, con le problematiche conseguenti Le statistiche di fuori servizio forzato dei sistemi HVDC degli ultimi anni confermano che l elemento di gran lunga più critico sono i trasformatori di conversione Come sempre, sono stati presentati progetti HVDC sia in costruzione sia pianificati. La Cina, oltre a presentare il successo del Xiangjiaba- Shanghai ±800kV UHVDC link, ha presentato i progressi nello sviluppo del ±1100kV UHVDC, deciso per potenze > 10GW e distanze > 2000 km (precisamente sistemi bipolari ±1100kV, 4750 A, MW) 11

12 Risultati tecnici principali della Session 2012 L evento di «commutation failure» rimane sempre di interesse e la sua propagazione in sistemi HVDC LCC e multi-infeed adiacenti si è verificata in Danimarca ed è stata studiata. Le DC Grids sono sempre di attualità in fase di studio: È stata evidenziata la necessità di adottare convertitori DC-DC per connettere sistemi HVDC originariamente indipendenti e con caratteristiche diverse e per altre applicazioni. Uno studio Europeo svolto dai tedeschi ha portato alla stesura di una prima guida tecnica per lo sviluppo di DC Grids, focalizzato per ora su sistemi radiali multiterminali con soli convertitori VSC. È stato presentato un sistema HVDC VSC (nello specifico modular multilevel converter MMC) per connettere offshore wind parks (OWP) alla rete AC terrestre (onshore): è stato presentato un dispositivo dissipativo «braking chopper», connesso al convertitore onshore (Onshore Braking Chopper), che consente di tenere in funzione la OWP quando sulla rete AC onshore si verifica un guasto transitorio. 12

13 Papers di autori italiani, presentati alla Session 2012 ed inerenti a HVDC An integrated AC-DC multiterminal grid in the western Mediterranean Basin development, planning and design challenges B4-304 (Terna) Projects BorWin2 and HelWin1 Large Scale Multilevel Voltage-Sourced Converter Technology for Bundling of Offshore Windpower B4-306 (Prysmian) The realization and commissioning of the ±500 kv 1000 MW HVDC link Sardinia Island Italian Peninsula (SAPEI) B1-101 (Terna,, ABB, Prysmian) Prepared contributions alla discussione del B4 da parte di Italiani (da pubblicarsi nei proceedings): The role of Owner Consultant Engineer in HVDC projects () in risposta a Question

14 Comitato di studio B4 Risultati principali del SC meeting 2012 Necessità di standardizzare le tensioni nominali dei sistemi HVDC, soprattutto in considerazione delle prossime DC Grids, cui si connetteranno di volta in volta nuovi convertitori con nuove linee (aeree o in cavo); (TF presieduta da Marcio Szechtman propone per ora: 200 (or 150) kv 320 kv 400 kv 500 kv 600 kv I valori 320 kv e 500 kv sono giustificati soprattutto dal dimensionamento dei cavi. Come consuetudine, sono stati presentati progetti HVDC di attuale o prossima realizzazione (Ardito ha presentato Italia-Montenegro e Italia-Francia) 14

15 Risultati principali del SC meeting 2012: IEC Prof. Dusan Povh (past chairman proprio del SC ex-14 ora B4) è chairman del IEC TC 115 «High Voltage Direct Current (HVDC) transmission for DC Voltages Above 100 kv Scopo: sviluppare HVDC system oriented standards as design aspects, technical requirements, construction and commissioning, reliability and availability, and operation and maintenance, a partire da quanto sviluppato da CIGRE SC B4 - Nessuna pubblicazione fino ad oggi - Contiguità (e rischio sovrapposizione/conflitto) con lo storico IEC SC 22F Power electronics for electrical transmission and distribution systems il cui scopo è: Standardization of electronic power conversion and / or semiconductor switching equipment and systems including the means for their control, protection, monitoring, cooling and other auxiliary systems and their application to electrical transmission and distribution systems.in particolare tutti gli aspetti di testing sono del SC 22F 15

16 Risultati principali del SC meeting 2012: IEC Publications, Work items & Potential new work items: SC22F IEC IEC IEC IEC IEC/TS IEC IEC/TR SC22F Terminology for high-voltage direct current (HVDC) transmission Thyristor valves for high voltage direct current (HVDC) power transmission - Part 1: Electrical testing Determination of power losses in high-voltage direct current (HVDC) converter stations Static VAR compensators (SVC)- Testing of thyristor valves High voltage direct current (HVDC) substation audible noise High-voltage direct current (HVDC) installations - System tests High-voltage direct current (HVDC) systems - Guidebook to the specification and design evaluation of A.C. filters IEC/PAS General guidelines for the design of ground electrodes for high-voltage direct current (HVDC) links IEC IEC/TR IEC/TR Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC) High-voltage direct current (HVDC) systems - Application of active filters 16

17 Risultati principali del SC meeting 2012: IEC Publications, Work items & Potential new work items: SC22F (continue) SC22F IEC Terminology for voltage-sourced converters (VSC) for HVDC systems IEC Determination of power losses in voltage sourced converter (VSC) valves for HVDC systems - Part 1: General requirements IEC Determination of power losses in voltage sourced converter (VSC) valves for HVDC systems - Part 2: Modular multilevel converters IEC Thyristor valves for thyristor controlled series capacitors (TCSC)- Electrical testing IEC/TR Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 1: Steady-state conditions IEC/TR Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2: Faults and switching IEC/TR Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3: Dynamic conditions IEC/TR High-voltage direct current (HVDC) transmission using voltage sourced converters (VSC) IEC/TR Fire Prevention Measures on HVDC, SVC and FACTS converters and their valve halls PWI 22F-10 Reactive Power Static Compensator (STATCOM) - Testing of converter valves PWI 22F-7 High-voltage thyristor valves for high-voltage direct current (HVDC) systems - Part 2: Terminology 17

18 Risultati principali del SC meeting 2012: IEC Publications, Work items & Potential new work items: TC115 IEC/TR IEC/TS TC115 Electromagnetic Environment Criterion for High-voltage Direct Current (HVDC) Overhead Transmission Lines General guidelines for the design of earth electrode stations for high-voltage direct current (HVDC) links IEC/TS Reliability and availability evaluation of HVDC systems - Part 1: HVDC Systems with Line Commutated Converters PWI Control and protection equipment in HVDC systems PWI Test requirements for DC yard equipment PWI/TR Guideline for HVDC system operation procedures PWI/TR Guidelines on Asset Management of HVDC Installations PWI/TR DC side harmonics and filtering in HVDC transmission systems PWI/TR Planning of HVDC systems PWI/TR Guideline for the system design of HVDC project 18