1、 ETSI TS 103 908 V1.1.1 (2011-10) PowerLine Telecommunications (PLT); BPSK Narrow Band Power Line Channel for Smart Metering Applications CEN EN 14908-3:2006, modified Technical Specification ETSI ETSI TS 103 908 V1.1.1 (2011-10)2Reference DTS/PLT-00032 Keywords authentication, confidentiality, endo
2、rsement, powerline ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the pre
3、sent document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case
4、 of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and
5、 other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorize
6、d by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2011. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM
7、and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 908 V1.1.1 (2011-10)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introducti
8、on 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Abbreviations . 5g3Endorsement notice 6g3Global modifications to EN 14908-3:2006 . 6g3History 12g3ETSI ETSI TS 103 908 V1.1.1 (2011-10)4Intellectual Property Rights IPRs essential or potentially essential
9、to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
10、 ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the ex
11、istence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Powerline Telecommunications (PLT). Introdu
12、ction The present document specifies a high-performance narrow band power line channel for control networking in the smart grid that operates in the EN 50065-1 2 9 kHz to 95 kHz sub-band (“A band“) and is compatible with the CEN EN 14908 Open Data Communication in Building Automation, Controls and B
13、uilding Management Control Networking standard and other protocols. The present document is suitable for smart grid applications such as, but not limited to, smart metering, distribution line management, distributed generation, electric vehicle charging and demand response. This channel definition d
14、oes not include built-in support for co-existence of dissimilar transceiver types at the PHY/MAC layer. Sharing of the media with other dissimilar technologies, for example, by segmenting access time to the channel or adjusting the duty cycle, is the responsibility of upper levels of protocols that
15、make use of the present document. ETSI ETSI TS 103 908 V1.1.1 (2011-10)51 Scope The present document contains all the information necessary to facilitate the exchange of data and control information over the power line medium between devices that share the same LV transformer(s) within a utilitys el
16、ectricity network. Certain aspects of the present document are defined in other documents. These documents are referenced where relevant. In the case where a referenced standard conflicts with the present document, the present document will prevail. The present document provides the necessary adapti
17、ons to the endorsed document 1. The present scope replaces in its entirety the scope of the endorsed document 1. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version ap
18、plies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in t
19、his clause were valid at the time of publication, ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. 1 CEN EN 14908-3:2006: “Open Data Communication in Building Automation, Controls an
20、d Building Management - Control Network Protocol - Part 3: Power Line Channel Specification“. 2 CENELEC EN 50065-1:2011: “Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 1: General requirements, frequency bands and electromagnetic disturbances“. 2.
21、2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 CEN EN 14908-1: “Open Data Communication in Building Automation, Controls and Building Management - Control
22、 Network Protocol - Part 1: Protocol Stack“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: AM Amplitude Modulation BPSK Binary Phase Shift Keying CNP Control Network Protocol LV Low Voltage NRZ Non Return to Zero PER Packet Error Rate ETSI ETSI TS 103 9
23、08 V1.1.1 (2011-10)6PL Power Line PPM Parts Per Million RLC Resistor, Inductor, Capacitor Endorsement notice The elements of CEN EN 14908-3:2006 1 apply, with the following modifications: NOTE: Underlining and/or strike-out are used to highlight detailed modifications where necessary. Global modific
24、ations to EN 14908-3:2006 Clause 5.2 “Data Channel“ Shall be modified as follows: The channel occupies the 125 kHz to 140 kHz 9 kHz to 95 kHz frequency band, as defined in EN 50065-1, as a Binary Phase Shift Keyed (BPSK) modulated carrier. This channel is used to send protocol messages containing co
25、ntrol, status, configuration and diagnostic information. The signalling characteristics of the channel are described in Clause 6 of EN 14908-3:2006. Clause 5.6 “Surge Protection and Related Devices“ Shall be modified as follows: Certain surge protection and related frequency selective protection dev
26、ices may be installed on the power network. These devices may attenuate the CNP channel waveform sufficiently to prevent operation in part or the entire network. Precautions should be taken such that the device chosen does not substantially attenuate the signals in the 125 kHz to 140 kHz 9 kHz to 95
27、 kHz range. Clause 6.4 “PL Packet Timing“ Shall be modified as follows: As described in EN 14908-1, the protocol uses an interpacket spacing defined as a Beta1 time and randomising slots defined as Beta2 times. Beta1 is measured from the end of a packet to the beginning of the first Beta2 slot. The
28、CNP protocol and PL transceiver in combination shall produce a Beta1 time of 3,4ms 5,19 ms +/-0,1 ms and B2 times of 2,0ms 3,05 ms +/-0,1 ms each. For optimum communication between nodes, there should be 8 0 priority Beta2 slots. In addition, the transceiver shall meet the timing parameters defined
29、below and specified in Table 1. Carrier Detect - The time from when the beginning of the packet is at the receivers input until the receiver has detected carrier and caused P_Channel_Active to be set to true. Transmit Start Delay - The time from when P_Data_request is activated to when the beginning
30、 of the packet is initiated onto the power line. Table 1 - Transceiver Timing Specifications Parameter Specification Carrier Detect 1,7 ms max 2,93 ms max. Transmit Start Delay 100 s max 153 s max. ETSI ETSI TS 103 908 V1.1.1 (2011-10)7Clause 6.5.1 “Carrier Modulation“ Shall be modified as follows:
31、The transmitter shall be a differential driver capable of driving the specified signal on the PL network. Each bitis sent as NRZ data BPSK modulated on to a carrier. The carrier frequency shall be 131,579 kHz 86,232 kHz with a tolerance of200 PPM. The symbol rate is 5482,45 symbols/sec 3592,98 symbo
32、ls/sec with a tolerance of 200 PPM. Note that appropriate shaping shall be performed on the modulated waveform to meet the requirements in EN 50065-1 for conducted emissions. Clause 6.5.2 “Waveform Amplitude“ Shall be modified as follows: The amplitude of the carrier output voltage during packet tra
33、nsmission should be measured at 23 C 3 C using the test circuit shown in Figure 4. The V-network is an artificial network of (50 /(50 H+5 ) conforming to 8.2.1 of CISPR 16. The amplitude is measured using the tuned receiver at a frequency of 131,5 kHz 86,2 kHz with a peak detector and a 30 kHz resol
34、ution bandwidth. The tuned receiver using its peak detector should read the rms value of a sinusoid. The amplitude limits shall be met both with switch closed and with the switch open. The transmit voltage will be calculated using the following formula Vpp=2,828xVmeasured and dBV=20log10(Vmeasured).
35、 The transmit voltage Vmeasured shall be greater than 0 dBV (2,828 Vpp) and less than 11 dBV (10,0 Vpp) when the switch is open and greater than -12 dBV (0,7 Vpp) when the switch is closed. Key: A NeutralE V-Network B Ground I Power line filter C Line J Power line transceiver under test D Filter S S
36、witch Figure 4 - Test Circuit for Determining Transmit Amplitude MeasuringReceiver Power line Transceiver under Test NG L FilterNeutralGroundLine250 H50 uH=0.25 uF50 5 5 50 uH1 F10 250 H =0.25 F 1 Fswitch Power LineFilter (40 dB 130 kHz 70-140 kHzPower LineFilter (40 dB 130 kHz 70-140kHz)ETSI ETSI T
37、S 103 908 V1.1.1 (2011-10)8Clause 6.6.1 “Receive Mode Effective Input Impedance“ Shall be modified as follows: The receive-mode effective input impedance shall be measured using the test circuit shown in Figure 5 and at an ambient temperature of 23 C 3 C. The V-network is an artificial network of (5
38、0 /(50 H+5 ) conforming to sub clause 8.2.1 of CISPR Publication 16. The receiver impedance is measured as follows. Set the signal generator to a sine wave of amplitude 5 V peak-to-peak at a frequency of 131,5 kHz 86,2 kHz. All measurements are made with a tuned receiver using a peak detector and a
39、30 kHz resolution bandwidth. The tuned receiver using its peak detector should read the rms value of a sinusoid. With the transceiver unplugged, measure the voltage (Voc) on the V-network 50 resistor (the signal generator provides this resistor with its internal termination) with the tuned receiver.
40、 The voltage Vocshould be 5,5 dBV 1dB (5,3 volts peak to peak 10%) where dBV is defined as dBV=20*Log10(Vpp/2,828). Next, with the transceiver plugged in and powered up in receive mode measure the voltage (Vic) on the V-network 50 resistor. The effective receive input impedance is calculated with th
41、e following formula where Zeis the effective receiver input impedance, Znis a constant value of 2919,Vocand Vicare the two voltages measured as described above (they shall be corrected for the 1/10 divider). The calculated value for Zeshall be greater than or equal to 200. ZVZVZVZeicnoc n ic n+ +50(
42、50 ) (50 )Key A Neutral E V-Network B Ground I Power line filter C Line J Power line transceiver under testD Filter Y Signal Generator(50 ) Figure 5 - Test Circuit for Determining Effective Receiver Impedance Power line Transceiver under Test V-Network N Power LineFilter(40 dB 130 kHz70-140 kHz)Powe
43、r LineFilter(40 dB 130 kHz70-140 kHz)LMeasuringReceiver(50 ohms)GSignal Generator (50 ohms) Filter LineNeutralGround=0.25 F50 H5 =0.25 F250 H5 50 50 H1uF 250 H 450 ETSI ETSI TS 103 908 V1.1.1 (2011-10)9Clause 6.6.4 “Receiving With Interference“ Shall be modified as follows: This test is designed to
44、measure the PL transceivers immunity to interference at various frequencies. There are four three frequency bands of interference identified. Figure 7 depicts the four three bands and the performance specification. Power line noise is present throughout the entire frequency spectrum and generally in
45、creases in amplitude with decreasing frequencies. Commercial broadcast signals can be at very high levels and for the purposes of the present document are defined to be between 150 kHz and 500 kHz 1 MHz. European and North American AM broadcast is present at high levels because power lines act as an
46、tennas for radio broadcasts. The broadcast noise region for this test is defined to be between 500 kHz 150 kHz and 1 MHz. The power line modem noise band is defined to be between 100 kHz 95 kHz and 150 kHz (EN 50065-1 sub-bands 95 kHz to 125 kHz, 125 kHz to 140 kHz and 140 kHz to 148,5 kHz). Key: A
47、Tone Level (dBv) D Power Line Modem Region B Freqeuncy kHz E Power Line Intercom and Broadcast Region C Power Line Noise Region F Broadcast Region ETSI ETSI TS 103 908 V1.1.1 (2011-10)10Figure 7 - Graph of Tone Interference Specification The method of measurement is as follows. Referring to Figure 6
48、1, switches SW1 and SW2 are open. The receive level is set to -47 dBV on the 50 resistor of the V-network by adjusting R1 when the transmitter is sending packets. The signal generator is set to frequency and amplitudes as shown in Table 2. The frequency spacing is every 5 kHz from 10 kHz to 150 kHz
49、and every 50 kHz from 150 kHz to 1 MHz. The interfering tone level (Itone) is then measured with the tuned receiver. Then for each frequency and amplitude of tone the received packet error rate (PER%) shall be less than 2 %. Table 2 - Settings for Receive Performance with Interfering Tone Test Signal Generator Frequency Interfering Tone Level (dBV) 10 kHz 5 15 kHz -5 20 kHz -13 25 kHz -19 30 kHz -24 35 kHz -28 40 kHz -31 45 kHz -34 50 kHz -37 55 kHz -39 60 kHz -42 65 kHz -44 70 kH
