BSI PD IEC TR 62543:2022
$198.66
High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC)
Published By | Publication Date | Number of Pages |
BSI | 2022 | 68 |
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
4 | CONTENTS |
8 | FOREWORD |
10 | 1 Scope 2 Normative references 3 Terms and definitions 3.1 General |
11 | Figures Figure 1 – Major components that can be found in a VSC substation |
12 | 3.2 Letter symbols 3.3 VSC transmission |
13 | 3.4 Power losses 4 VSC transmission overview 4.1 Basic operating principles of VSC transmission 4.1.1 Voltage sourced converter as a black box |
14 | 4.1.2 Principles of active and reactive power control Figure 2 – Diagram of a generic voltage source converter |
15 | Figure 3 – Principle of active power control |
16 | 4.1.3 Operating principles of a VSC transmission scheme Figure 4 – Principle of reactive power control Figure 5 – A point-to-point VSC transmission scheme |
17 | 4.1.4 Applications of VSC transmission 4.2 Design life 4.3 VSC transmission configurations 4.3.1 General |
18 | 4.3.2 DC circuit configurations 4.3.3 Monopole configuration Figure 6 – VSC transmission with a symmetrical monopole |
19 | 4.3.4 Bipolar configuration Figure 7 – VSC transmission with an asymmetrical monopole with metallic return Figure 8 – VSC transmission with an asymmetrical monopole with earth return Figure 9 – VSC transmission in bipolar configuration with earth return |
20 | 4.3.5 Parallel connection of two converters Figure 10 – VSC transmission in bipolar configuration with dedicated metallic return Figure 11 – VSC transmission in rigid bipolar configuration |
21 | 4.3.6 Series connection of two converters 4.3.7 Parallel and series connection of more than two converters 4.4 Semiconductors for VSC transmission Figure 12 – Parallel connection of two converter units |
22 | Figure 13 – Symbol of a turn-off semiconductor device and associated free-wheeling diode Figure 14 – Symbol of an IGBT and associated free-wheeling diode |
23 | 5 VSC transmission converter topologies 5.1 General 5.2 Converter topologies with VSC valves of switch type 5.2.1 General |
24 | 5.2.2 Operating principle 5.2.3 Topologies |
25 | Figure 15 – Diagram of a three-phase 2-level converter and associated AC waveform for one phase Figure 16 – Single-phase AC output for 2-level converter with PWM switching at 21 times fundamental frequency |
26 | Figure 17 – Diagram of a three-phase 3-level NPC converter and associated AC waveform for one phase |
27 | 5.3 Converter topologies with VSC valves of the controllable voltage source type 5.3.1 General Figure 18 – Single-phase AC output for 3-level NPC converter with PWM switching at 21 times fundamental frequency |
28 | 5.3.2 MMC topology with VSC levels in half-bridge topology Figure 19 – Electrical equivalent for a converter with VSC valves acting like a controllable voltage source |
29 | Figure 20 – VSC valve level arrangement and equivalent circuit in MMC topology in half-bridge topology Figure 21 – Converter block arrangement with MMC topology in half-bridge topology |
30 | 5.3.3 MMC topology with VSC levels in full-bridge topology 5.3.4 CTL topology with VSC cells in half-bridge topology 5.3.5 CTL topology with VSC cells in full-bridge topology Figure 22 – VSC valve level arrangement and equivalent circuit in MMC topology with full-bridge topology |
31 | 5.4 VSC valve design considerations 5.4.1 Reliability and failure mode 5.4.2 Current rating 5.4.3 Transient current and voltage requirements Figure 23 – Typical SSOA for the IGBT |
32 | 5.4.4 Diode requirements 5.4.5 Additional design details Figure 24 – A 2-level VSC bridge with the IGBTs turned off |
33 | 5.5 Other converter topologies 5.6 Other equipment for VSC transmission schemes 5.6.1 General 5.6.2 Power components of a VSC transmission scheme |
34 | 5.6.3 VSC substation circuit breaker 5.6.4 AC system side harmonic filters 5.6.5 Radio frequency interference filters 5.6.6 Interface transformers and phase reactors |
35 | 5.6.7 Valve reactor 5.6.8 DC capacitors |
37 | 5.6.9 DC reactor |
38 | 5.6.10 DC filter 5.6.11 Dynamic braking system 6 Overview of VSC controls 6.1 General Figure 25 – Representing a VSC unit as an AC voltage of magnitude U and phase angle δ behind reactance |
39 | 6.2 Operational modes and operational options Figure 26 – Concept of vector control |
40 | 6.3 Power transfer 6.3.1 General 6.3.2 Telecommunication between converter stations 6.4 Reactive power and AC voltage control 6.4.1 AC voltage control Figure 27 – VSC power controller |
41 | 6.4.2 Reactive power control 6.5 Black start capability 6.6 Supply from a wind farm Figure 28 – AC voltage controller |
42 | 7 Steady-state operation 7.1 Steady-state capability |
43 | 7.2 Converter power losses Figure 29 – A typical simplified PQ diagram |
44 | 8 Dynamic performance 8.1 AC system disturbances 8.2 DC system disturbances 8.2.1 DC cable fault |
45 | 8.2.2 DC overhead line fault 8.3 Internal faults Figure 30 – Protection concept of a VSC substation |
46 | 9 HVDC performance requirements 9.1 Harmonic performance |
47 | 9.2 Wave distortion 9.3 Fundamental and harmonics 9.3.1 Three-phase 2-level VSC 9.3.2 Multi-pulse and multi-level converters Figure 31 – Waveforms for three-phase 2-level VSC |
48 | 9.4 Harmonic voltages on power systems due to VSC operation 9.5 Design considerations for harmonic filters (AC side) 9.6 DC side filtering Figure 32 – Equivalent circuit at the PCC of the VSC |
49 | 10 Environmental impact 10.1 General 10.2 Audible noise 10.3 Electric and magnetic fields (EMF) 10.4 Electromagnetic compatibility (EMC) |
50 | 11 Testing and commissioning 11.1 General |
51 | 11.2 Factory tests 11.2.1 Component tests 11.2.2 Control system tests 11.3 Commissioning tests/system tests 11.3.1 General |
52 | 11.3.2 Precommissioning tests 11.3.3 Subsystem tests 11.3.4 System tests |
57 | Annex A (informative) Functional specification requirements for VSC transmission systems |
63 | Annex B (informative) Modulation strategies for 2-level converters |
64 | Figure B.1 – Voltage harmonics spectra of a 2-level VSC with carrier frequency at 21st harmonic |
65 | Figure B.2 – Phase output voltage for selective harmonic elimination modulation (SHEM) |
66 | Bibliography |