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Technical Brochures
- TB 717 2018 Protocol for reporting operational performance of FACTS
- TB 713 2018 Designing HVDC grids for optimal reliability and availability performance
- TB 699 2017 Control methodologies for direct voltage and power flow in a meshed HVDC grid
- TB 697 2017 Testing and commissioning of VSC HVDC systems
- TB 684 2017 Recommended voltages for HVDC grids
- TB 683 2017 Technical requirements and specifications of state-of-the-art HVDC switching equipment
- TB 675 2017 General guidelines for HVDC electrode design
- TB 671 2016 Connection of wind farms to weak AC networks
- TB 663 Guidelines for the procurement and testing of STATCOMS
- TB 657 2016 Guidelines for the preparation of "connection agreements" or "Grid Codes" for multi-terminal schemes and DC Grids
- TB 649 2016 GUIDELINES FOR LIFE EXTENSION OF EXISTING HVDC SYSTEMS
- TB 619 2015 HVDC CONNECTION OF OFFSHORE WIND POWER PLANTS
- TB 617 2015 HVDC LCC Converter Transformers - CONVERTER TRANSFORMER FAILURE SURVEY RESULTS FROM 2003 TO 2012
- TB 609 2015 Study of Converter Transients Imposed on the HVDC Converter Transformers
- TB 604 2014 Guide for the Development of Models for HVDC Converters in a HVDC Grid
- TB 590 2014 B4-04 Protocol for reporting the operational performance of HVDC Transmission Systems
- TB 563 2013 B4-38 Modelling and Simulation Studies to be performed during the lifecycle of HVDC Systems
- TB 554 2013 B4-49 Performance Evaluation and Applications Review of Existing Thyristor Control Series Capacitor Devices – TCSC
- TB 553 2013 B4-47 Special Aspects of AC Filter Design for HVDC Systems
- TB 536 2013 C4/B4/C1.604 Influence of Embedded HVDC Transmission on System Security and AC Network Performance
- TB 533 2013 B4-52 HVDC Grid Feasibility Study
- TB 508 2012 B4-44 HVDC Environmental Planning Guidelines
- TB 492 2012 B4-46 Voltage Source Converter (VSC) HVDC for Power Transmission - Economic Aspects and Comparison with other AC and DC Technologies
- TB 447 2011 B4-48 Components Testing of VSC System for HVDC Applications
- TB 417 2010 B4-45 Technological Assessment of 800kV HVDC Applications
- TB 407 2010 JWG A2/B4.28 HVDC Converter Transformers - Guidelines for conducting design reviews for HVDC converter transformers
- TB 406 2010 JWG A2/B4.28 HVDC Converter Transformers - Design review, test procedures, ageing evaluation and reliability in service
- TB 388 2009 JWG B2/B4/C1.17 IMPACTS OF HVDC LINES ON THE ECONOMICS OF HVDC PROJECTS
- TB 371 2009 WG B4.40 Static Synchronous Series Compensator (SSSC)
- TB 370 2009WG B4.39 Integration of large Scale Wind Generation using HVDC and Power Electronics
- TB 364 2008 WG B4.41 Systems with multiple DC Infeed
- TB 352 2008 WG B4.34 Capacitor Commutated Converted (CCC) HVDC Interconnections: Digital modeling and Benchmark Circuit
- TB 337 2007 JWG B4/A3/B3.43 Increased System Efficiency by Use of New Generations of Power Semiconductors
- TB 280 2005 SC B4 WG B4.33 HVDC and FACTS for distribution systems
- TB 269 2005 SC B4 WG B4.37 VSC Transmission
- TB 242 2004 SC B4 WG B4.35 Thyristor controlled voltage regulators: Parts 1 and 2
- TB 240 2004 SC B4/A2 JTF B4.04/A2.01 Analysis of HVDC thyristor converter transformer performance
- TB 237 2003 SC B4 WG B4.19 Static synchronous compensator (STATCOM) for arc furnace and flicker compensation
- TB 223 2003 SC B4 WG B4.28 Active filters in HVDC applications
- TB 222 2003 SC B4 WG B4.05 On voltage and power stability in AC/DC systems
- TB 215 2002 SC 14 WG 14.32 HVDC converter stations for voltages above +/- 600 kV
- TB 205 2002 SC 14 WG 14.31 Custom power - State of the art.
- TB 202 2002 SC 14 WG 14.26 HVDC stations audible noise
- TB 186 2001 SC 14 WG 14.20 Economic assessment of HVDC links
- TB 183 2001 SC 14/37/38/39 JWG 14/37/38/39.24 FACTS technology for open access
- TB 160 2000 SC 14 WG 14.27 Unified power flow controller (UPFC)
- TB 149 1999 SC 14 WG 14.29 Coordination of controls of multiple FACTS/HVDC links in the same system.
- TB 144 1999 SC 14 WG 14.19 Static synchronous compensator (STATCOM)
- TB 143 1999 SC 14 WG 14.25 Cross-modulation of harmonics in HVDC schemes
- TB 139 1999 SC 14 WG 14.30 Guide to the specification and design evaluation of AC filters for HVDC systems.
- TB 136 1999 SC 14 TF 14.01.04 Fire aspects of HVDC thyristor valves and valve halls.
- TB 130 1998 SC 14 WG 14.23 Operational guidelines and monitoring of HVDC systems
- TB 127 1998 SC 14 WG 14.11 Guide for upgrading transmission systems with HVDC transmission
- TB 123 1997 SC 14 WG 14.18 Thyristor controlled series compensation
- TB 119 1997 SC 14 WG 14.05 Interaction between HVDC convertors and nearby synchronous machines.
- TB 116 1997 SC 11/14 JWG 11/14.09 Guide for preliminary design and specification of hydro stations with HVDC unit connected generators.
- TB 115 1997 SC 14 WG 14.07 Guide for planning DC links terminating at AC system locations having low short-circuit capacities. Part II : Planning guidelines.
- TB 114 1997 SC 13/14 WG 13/14.08 Circuit-breakers for meshed multiterminal HVDC system.
- TB 113 1997 SC 14 WG 14.01.03 Test circuits for HVDC thyristor valves.
- TB 112 1997 SC 14 WG 14.17 Semiconductor power devices for use in HVDC and FACTS controllers.
- TB 103 1996 SC 14 WG 14.05 Commutation failures. Causes and consequences.
- TB 097 1995 SC 14 WG 14.12 System tests for HVDC installations.
- TB 093 1995 SC 14 WG 14.01.02 Guidelines for testing of thyristor valves for static var compensators.
- TB 092 1995 SC 14 WG 14.03.02 DC side harmonics and filtering in HVDC transmission systems
- TB 086 1994 SC 33 /21/14 JWG 33/21/14.16 Overvoltages on HVDC cables.
- TB 082 1994 SC 38 WG 38.01.05 Use of DC converters for VAR control.
- TB 078 1994 SC 14 WG 14.01.02 Voltage and current stresses on thyristor valves for static var compensators.
- TB 077 1993 SC 38 WG 38.05.04 Analysis and optimisation of SVC use in transmission systems.
- TB 068 1992 SC 14 WG 14.07 Guide for planning DC links terminating at AC locations having low short-circuit capacities. Part 1. AC/DC interaction phenomena.
- TB 065 1992 SC 14 WG 14.03 AC harmonic filters and reactive compensation for HVDC with particular reference to noncharacteristic harmonics.
- TB 051 1996 SC 38 WG 38.01.06 Load flow control in high voltage systems using FACTS controllers.
- TB 034 1989 SC 33/14 JWG 33/14.05 Guidelines for the applications of metal oxide arresters without gaps for HVDC converter stations.
- TB 025 1986 SC 38 TF 38.01.02 Static var compensators.
- TB 003 1987 SC 14 WG 14.04 Compendium of HVDC schemes throughout the world.
- TB 000 1994 SC 14 WG 14.02 A summary of the report on survey of controls and control performance in HVDC schemes.
- Session papers
- Other Documents
- SC Library
- Documents related to the development of HVDC Grids
TB 139 1999 SC 14 WG 14.30 Guide to the specification and design evaluation of AC filters for HVDC systems.
The principal purpose of the document is to give guidance to those responsible for : preparing the a.c. filtering aspects of Technical Specifications for HVDC projects ; evaluating the proposed designs, and monitoring the subsequent project. The main objective is to enable informed judgements to be made and future Technical Specifications to be written, such that the resulting a.c. filters are effective yet economical and are non under or over designed.
TABLE OF CONTENTS
1. INTRODUCTION AND OBJECTIVES
1.1 General
1.2 Definitions
1.3 Introduction
1.4 Past experience
1.5 Objectives
1.6 Approach
2. GENERAL ASPECTS OF SPECIFICATIONS
2.1 General
2.2 Boundaries of responsibility
2.3 Scope of studies
2.4 Scope of supply
2.5 Technical data to be supplied by Contractor
2.6 Alternative proposals by Bidders
3. PERMISSIBLE DISTORTION LIMITS
3.1 General
3.2 Voltage distortion
3.3 Distortion limits pertaining to the HV and EHV network equipment
3.4 Telephone interference
3.5 Special criteria
4. HARMONIC GENERATION
4.1 General
4.2 Converter harmonic generation
4.3 Calculation methodology
4.4 Sensitivity of harmonic generation to various factors
4.5 Externally generated harmonics
5. HARMONIC INTERACTION ACROSS CONVERTERS
5.1 Introduction
5.2 Interaction phenomena
5.3 Interaction modelling
5.4 Impact on a.c. filter design
5.5 Study methods
5.6 Possible countermeasures
5.7 Recommendations for the Technical Specification
6. FILTER ARRANGEMENTS
6.1 Overview
6.2 Advantages and disadvantages of typical filters
6.3 Classification of filter types
6.4 Tuned filters
6.5 Damped filters
6.6 Choice of filters
7. FILTER PERFORMANCE CALCULATION
7.1 Calculation procedure
7.2 Detuning and tolerances
7.3 Network impedance for performance calculations
7.4 Outages of filter banks / sub-banks
7.5 Considerations of probability
7.6 Flexibility regarding compliance
8. FILTER SWITCHING AND REACTIVE POWER MANAGEMENT
8.1 Introduction
8.2 Reactive power interchange with a.c. network
8.3 HVDC converter reactive power capability
8.4 Bank / sub-bank definitions and sizing
8.5 Hysteresis in switching points
8.6 Converter Q-V control near switching points
8.7 Operation at increased converter control angles
8.8 Filter switching sequence and harmonic performance
8.9 Demarcation of responsibilities
9. STEADY STATE RATING
9.1 Introduction
9.2 Calculation method
9.3 A.C. network conditions
9.4 De-tuning effects
9.5 Network impedance for rating calculations
9.6 Outages
10. TRANSIENT STRESSES AND RATING
10.1 General
10.2 Switching impulse studies
10.3 Fast fronted waveform studies
10.4 Insulation co-ordination
11. LOSSES
11.1 Background
11.2 A.C. filter component losses
11.3 Filter reactor losses
11.4 Criteria for loss evaluation
12. DESIGN ISSUES AND SPECIAL APPLICATIONS
12.1 Introduction
12.2 Performance aspects
12.3 Rating aspects
12.4 Filters for special purposes
12.5 Impact of new HVDC station in vicinity of an existing station
12.6 Redundancy issues and spares
13. PROTECTION
13.1 Introduction
13.2 General
13.3 Bank and sub-bank overall protection
13.4 Protection of individual filter components
13.5 Personnel protection
14. SEISMIC REQUIREMENTS
14.1 General
14.2 Load specification
14.3 Method of qualification
14.4 Examples of improvements in the mechanical design
15. AUDIBLE NOISE
15.1 General
15.2 Sound active components of a.c. filters
15.3 Sound requirements
15.4 Noise reduction
16. CUSTOMER SPECIFIED PARAMETERS AND REQUIREMENTS
16.1 Introduction
16.2 A.C. system parameters
16.3 Harmonic distortion requirements
16.4 Environmental conditions
16.5 Electrical environment
16.6 Requirements for filter arrangements and components
16.7 Protection of filters
16.8 Loss evaluation
16.9 Field measurements and verifications
16.10 General requirements
17. EQUIPMENT DESIGN AND TEST REQUIREMENTS
17.1 General
17.2 Capacitors
17.3 Reactors
17.4 Resistors
17.5 Arresters
17.6 Instrument transformers
17.7 Filter switching equipment
18. FIELD MEASUREMENTS AND VERIFICATION.
18.1 Introduction
18.2 Equipment and subsystem tests
18.3 System tests
18.4 In-service measurements
18.5 Measurements of pre-existing harmonic levels for design purposes
19. FUTURE DEVELOPMENTS
19.1 Introduction
19.2 New filter technology
19.3 New converter technology
19.4 Changing external environment
20. REFERENCES
