BSI PD IEC TR 63127:2019+A1:2024
$198.66
Guideline for the system design of HVDC converter stations with line-commutated converters
| Published By | Publication Date | Number of Pages |
| BSI | 2024 | 68 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Symbols 4.1 Letter symbols for variables |
| 13 | 4.2 Subscripts 5 Overview of HVDC system design 5.1 General |
| 14 | Figures Figure 1 – System design in an HVDC project |
| 15 | 5.2 Formulation of system design 5.2.1 HVDC system ratings 5.2.2 HVDC system configuration 5.2.3 Reactive power compensation and control 5.2.4 AC/DC interaction and control |
| 16 | 5.2.5 Insulation coordination 5.2.6 AC/DC harmonic filtering 5.2.7 Environmental considerations 5.3 System studies and simulations |
| 17 | Tables Table 1 – Studies and simulations in HVDC system design |
| 18 | 6 Determination of design conditions and requirements 6.1 Environmental conditions and requirements |
| 19 | 6.2 DC transmission line (cable) and earth electrode 6.2.1 Parameters of DC overhead transmission line |
| 20 | 6.2.2 Parameters of DC cable 6.2.3 Parameters of electrode line and ground electrode 6.3 AC system conditions 6.3.1 Operating scenarios of AC/DC system 6.3.2 AC system modelling |
| 21 | 6.3.3 Relevant AC system protection 6.3.4 Reactive power supply and absorption |
| 22 | 6.3.5 Short-circuit current or capacity 6.3.6 AC bus voltage |
| 23 | 6.3.7 AC system frequency 6.3.8 Pre-existing harmonic and negative sequence voltage Figure 2 – Example of schematic diagram of AC system frequency variation range |
| 24 | 6.4 Requirements for HVDC systems arising from AC/DC interaction |
| 25 | 6.5 AC system equivalents 6.5.1 General 6.5.2 Equivalent for AC/DC system dynamic or transient simulation |
| 26 | 6.5.3 Impedance equivalent for AC filter design Figure 3 – Sector diagram of system harmonic impedance |
| 27 | 6.5.4 System equivalent for low order harmonic resonance study Figure 4 – Circle diagram of system harmonic impedance |
| 28 | 7 Main circuit design 7.1 Ratings 7.1.1 Rated power Figure 5 – Structure of equivalent network for low order harmonic resonance study |
| 29 | 7.1.2 Rated voltage Table 2 – Preferred rated voltages for overhead line HVDC power transmission Table 3 – Preferred rated voltages for submarine HVDC power transmission |
| 30 | 7.1.3 Rated current 7.2 Configurations 7.2.1 Pole and return path |
| 31 | 7.2.2 Converter topology |
| 32 | 7.2.3 DC switchyard configuration Figure 6 – Converter transformer connection topology |
| 35 | Figure 7 – Sketch maps of the DC yard switches of HVDC system Figure 8 – Schematic diagram of converter parallel connection |
| 36 | Figure 9 – Schematic diagram of pole line parallel connection Figure 10 – Procedure of NBS disconnecting DC fault |
| 37 | Figure 11 – Current transfer path of the MRTS Figure 12 – Current transfer path of ERTS |
| 38 | Figure 13 – Connection and function of the NBES Figure 14 – Commutating process of NBES in case of DMR |
| 39 | Figure 15 – High speed bypass switch Figure 16 – Converter paralleling switches |
| 40 | 7.2.4 Reactive power equipment 7.3 Determination of main circuit parameters 7.3.1 General |
| 41 | 7.3.2 Control strategy |
| 42 | 7.3.3 Tolerances and errors 7.3.4 Determination of converter transformer impedance 7.3.5 Relative inductive voltage drop (dxN) and relative resistive voltage drop (drN) |
| 43 | 7.3.6 Ideal no-load DC voltage 7.3.7 DC voltage and DC current |
| 44 | 7.3.8 Rated capacity of converter transformer |
| 45 | 7.3.9 Converter transformer taps |
| 46 | 7.3.10 Inductance of smoothing reactor 8 Insulation coordination |
| 47 | 9 Filter design 9.1 General 9.2 AC filter design 9.3 DC filter design |
| 48 | 9.4 Power line carrier (PLC) filters 9.5 Radio frequency interference (RFI) |
| 49 | 10 Reactive power compensation and control 10.1 General 10.2 Reactive power consumption 10.2.1 Reactive power consumption calculation |
| 50 | 10.2.2 Maximum reactive power consumption 10.2.3 Minimum reactive power consumption 10.3 Determination of reactive power equipment capacity 10.3.1 General 10.3.2 Capacity of reactive power supply equipment 10.3.3 Capacity of reactive power absorption equipment |
| 51 | 10.3.4 Sizing of reactive power sub-bank 10.3.5 Sizing of reactive power bank 10.4 Reactive power control 10.4.1 General |
| 52 | 10.4.2 Reactive power exchange control/voltage control 10.4.3 Voltage limitation |
| 53 | 10.5 Temporary overvoltage control 11 Basic parameters of main equipment 11.1 General 11.2 Converter valves 11.2.1 General 11.2.2 Valve hall environment |
| 54 | 11.2.3 Current rating 11.2.4 Voltage rating |
| 55 | 11.2.5 Losses of converter valves 11.2.6 Testing requirements 11.3 Converter transformers 11.3.1 General |
| 56 | 11.3.2 Current rating 11.3.3 Voltage rating 11.3.4 Other rating 11.3.5 Rated loss |
| 57 | 11.3.6 Test requirements 11.4 Smoothing reactor 11.4.1 General 11.4.2 Current ratings |
| 58 | 11.4.3 Voltage rating 11.4.4 Other ratings 11.4.5 Losses 11.4.6 Test requirements 11.5 Wall bushings 11.5.1 General 11.5.2 Current rating 11.5.3 Voltage rating 11.5.4 Testing requirement |
| 59 | 11.6 AC and DC filter equipment 11.7 PLC filter equipment 11.8 Other equipment in DC yard |
| 60 | Annex A (informative) Typical control, measurement and equipment manufacturing tolerance in HVDC systems Table A.1 – Tolerance for main circuit calculation Table A.2 – Control parameters for main circuit calculation |
| 61 | Annex B (informative)Technical parameters for equipment specification B.1 Converter valve |
| 63 | B.2 Converter transformer |
| 64 | B.3 Smoothing reactor |
| 65 | Bibliography |
