1、 IEC TS 61973 Edition 1.1 2019-05 CONSOLIDATED VERSION TECHNICAL SPECIFICATION High voltage direct current(HVDC)substation audible noise IEC TS 61973:2012-04+AMD1:2019-05 CSV(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2019 IEC,Geneva,Switzerland All rights reserved.Unless othe
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9、 issued since 2002.Some entries have been collected from earlier publications of IEC TC 37,77,86 and CISPR.TECHNICAL SPECIFICATION High voltage direct current(HVDC)substation audible noise INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.240.10;29.240.99 ISBN 978-2-8322-6930-5 IEC TS 61973 Edition 1
10、.1 2019-05 CONSOLIDATED VERSION Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside IEC TS 61973 Edition 1.1 2019-05 CONSOLIDATED VERSION REDLINE VERSION High voltage direct current(HVD
11、C)substation audible noise IEC TS 61973:2012-04+AMD1:2019-05 CSV(en)colourinside 2 IEC TS 61973:2012+AMD1:2019 CSV IEC 2019 CONTENTS FOREWORD.7 1 Scope.9 2 Normative references.9 3 Terms and definitions.10 3.1 Sound and noise terms.10 3.2 Sound radiation terms.14 3.3 Acoustic fields.16 4 Environment
12、al influences.16 4.1 General.16 4.2 Directivity of sound radiation.16 4.3 Background noise.18 4.4 Topography.20 4.5 Meteorological conditions.20 5 Noise level limits.22 5.1 General.22 5.2 Regulations.22 5.2.1 Noise level limits.22 5.2.2 Noise level measurement.23 5.3 Land-use classifications.23 5.4
13、Location of required performance limits.23 5.4.1 General.23 5.4.2 At the fence surrounding the HVDC substation or at the border of the substation owners property.24 5.4.3 At the given contour away from the HVDC substation(e.g.on a circle perimeter or beyond a property border line).24 5.4.4 At the bo
14、rder of a nearby property.24 5.5 Relationship of performance limits to time duration.24 5.6 Typical noise performance limits.25 5.6.1 General.25 5.6.2 Specific A-weighted sound pressure levels.25 5.6.3 Maximum allowable increase over background noise levels.25 6 Sound emitting sources.25 6.1 General
15、.25 6.2 Converter transformer.26 6.2.1 Noise sources in a converter transformer.26 6.2.2 Comparison with a.c.power transformers.26 6.2.3 Special features of HVDC converter transformers.27 6.2.4 Transformer winding noise.28 6.3 Reactors.29 6.3.1 Type and design of HVDC reactors.29 6.3.2 Mechanism of
16、sound generation.30 6.3.3 AC filter reactors.34 6.3.4 HVDC smoothing reactors.35 6.3.5 Self-tuned filter reactors.36 6.4 Capacitors.37 6.4.1 Type and design of capacitors.37 IEC TS 61973:2012+AMD1:2019 CSV 3 IEC 2019 6.4.2 Mechanism of sound generation.37 6.5 Cooling fans.40 6.6 Other sound-emitting sources.41 6.6.1 Switching devices.41 6.6.2 Synchronous compensators.42 6.6.3 Diesel generators.42 6.6.4 Air conditioning plant.42 6.6.5 Cooling circuit pumps.42 6.6.6 Converter valves.42 6.6.7 Air c
