{"id":398163,"date":"2024-10-20T04:34:13","date_gmt":"2024-10-20T04:34:13","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-60255-118-1-2018\/"},"modified":"2024-10-26T08:22:37","modified_gmt":"2024-10-26T08:22:37","slug":"ieee-60255-118-1-2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-60255-118-1-2018\/","title":{"rendered":"IEEE 60255-118-1-2018"},"content":{"rendered":"

Revision Standard – Active.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
12<\/td>\n1 Scope
2 Normative references
3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\n3.2 Abbreviated terms <\/td>\n<\/tr>\n
14<\/td>\n4 Synchrophasor measurement
4.1 Input and output quantities
4.2 Power system signal
Figures
Figure 1 \u2013 Input and output quantities <\/td>\n<\/tr>\n
15<\/td>\n4.3 Measurand definitions
4.3.1 Synchrophasor phase angle
4.3.2 Synchrophasor measurand
4.4 Frequency measurand definition <\/td>\n<\/tr>\n
16<\/td>\n4.5 Rate of change of frequency measurand definition
4.6 Measurement time synchronization
5 Measurement compliance evaluation
5.1 PMU measurement capability
5.2 Measurement evaluation
5.2.1 Synchrophasor measurement evaluation <\/td>\n<\/tr>\n
17<\/td>\n5.2.2 Frequency and ROCOF measurement evaluation
5.2.3 Measurement response time and delay time <\/td>\n<\/tr>\n
18<\/td>\n5.2.4 Overshoot and undershoot <\/td>\n<\/tr>\n
19<\/td>\nFigure 2 \u2013 Step transition examples <\/td>\n<\/tr>\n
20<\/td>\n5.2.5 Measurement reporting latency
5.2.6 Measurement and operational errors <\/td>\n<\/tr>\n
21<\/td>\n5.3 Measurement reporting
5.3.1 General
5.3.2 Reporting rates
5.3.3 Reporting times
5.4 Measurement compliance
5.4.1 Performance classes
Tables
Table 1 \u2013 Standard PMU reporting rates <\/td>\n<\/tr>\n
22<\/td>\n5.4.2 Compliance verification
6 Measurement compliance test and evaluation
6.1 Testing considerations <\/td>\n<\/tr>\n
23<\/td>\n6.2 Reference and test conditions
6.3 Steady-state compliance <\/td>\n<\/tr>\n
24<\/td>\nTable 2 \u2013 Steady-state synchrophasor measurement requirements <\/td>\n<\/tr>\n
26<\/td>\n6.4 Dynamic compliance \u2013 Measurement bandwidth
Table 3 \u2013 Steady-state frequency and ROCOF measurement requirements <\/td>\n<\/tr>\n
28<\/td>\nTable 4 \u2013 Synchrophasor measurement bandwidth requirements using modulated test signals
Table 5 \u2013 Frequency and ROCOF performance requirements under modulation tests <\/td>\n<\/tr>\n
29<\/td>\n6.5 Dynamic compliance \u2013 Performance during ramp of system frequency <\/td>\n<\/tr>\n
31<\/td>\n6.6 Dynamic compliance \u2013 Performance under step changes in phase and magnitude
Table 6 \u2013 Synchrophasor performance requirements under frequency ramp tests
Table 7 \u2013 Frequency and ROCOF performance requirements under frequency ramp tests <\/td>\n<\/tr>\n
32<\/td>\n6.7 PMU reporting latency compliance
Table 8 \u2013 Phasor performance requirements for input step change
Table 9 \u2013 Frequency and ROCOF performance requirements for input step change
Table 10 \u2013 PMU reporting latency <\/td>\n<\/tr>\n
33<\/td>\n7 Documentation <\/td>\n<\/tr>\n
34<\/td>\nAnnex\u00a0A (informative)Time tagging and dynamic response
A.1 Dynamic response
A.2 Time tags <\/td>\n<\/tr>\n
35<\/td>\nFigure A.1 \u2013 Frequency step test phase response without groupdelay compensation
Figure A.2 \u2013 Frequency step test phase response after group delay compensation <\/td>\n<\/tr>\n
36<\/td>\nA.3 Magnitude step test example
Figure A.3 \u2013 Magnitude step test results for 3 different algorithms <\/td>\n<\/tr>\n
37<\/td>\nA.4 PMU time input
Figure A.4 \u2013 Magnitude step test example <\/td>\n<\/tr>\n
39<\/td>\nAnnex\u00a0B (informative)Parameter representation and definition application examples
B.1 General
B.2 Representing non-stationary sinusoids <\/td>\n<\/tr>\n
40<\/td>\nB.3 Introduction of definition application examples
B.3.1 General
B.3.2 Example 1: steady-state at nominal frequency
B.3.3 Example 2: steady-state and constant off-nominal frequency <\/td>\n<\/tr>\n
41<\/td>\nB.3.4 Example 3: oscillation of the phase and amplitude of the power signal
Figure B.1 \u2013 Sampling a power frequency sinusoid at off-nominal frequency <\/td>\n<\/tr>\n
42<\/td>\nB.3.5 Example 4: constant, non-zero rate of change of frequency <\/td>\n<\/tr>\n
43<\/td>\nB.4 Reconstruction of the power system sinusoidal signal from the synchrophasor <\/td>\n<\/tr>\n
44<\/td>\nAnnex\u00a0C (informative)PMU evaluation and testing
C.1 General
C.2 TVE measurement evaluation <\/td>\n<\/tr>\n
45<\/td>\nC.3 Phase-magnitude relation in TVE and timing
Figure C.1 \u2013 Total vector error (TVE)
Figure C.2 \u2013 The 1\u00a0% TVE criterion shown on the end of a phasor <\/td>\n<\/tr>\n
46<\/td>\nFigure C.3 \u2013 TVE as a function of magnitude for various phase errors <\/td>\n<\/tr>\n
47<\/td>\nC.4 Evaluation of response to stepped input signals
Figure C.4 \u2013 TVE as a function of phase for various magnitude errors <\/td>\n<\/tr>\n
48<\/td>\nFigure C.5 \u2013 Example of step change measurements using a magnitude step at t = 0 <\/td>\n<\/tr>\n
49<\/td>\nC.5 Harmonic distortion test signal phasing
C.6 ROCOF limits
C.6.1 General
Table C.1 \u2013 Harmonic phase sequence in a balanced three-phase system <\/td>\n<\/tr>\n
50<\/td>\nC.6.2 Derivation <\/td>\n<\/tr>\n
51<\/td>\nC.7 PMU reporting latency
Figure C.6 \u2013 PMU reporting latency example (actual PMU measurement) <\/td>\n<\/tr>\n
52<\/td>\nAnnex\u00a0D (informative)Reference signal processing models
D.1 General
D.2 Basic synchrophasor estimation model <\/td>\n<\/tr>\n
53<\/td>\nD.3 Timestamp compensation for low-pass filter group delay
Figure D.1 \u2013 Single phase section of the PMU phasor signal processing model <\/td>\n<\/tr>\n
54<\/td>\nD.4 Positive sequence, frequency, and ROCOF
Figure D.2 \u2013 Complete PMU signal processing model <\/td>\n<\/tr>\n
55<\/td>\nD.5 P Class reference model for phasor
D.6 P class filter details <\/td>\n<\/tr>\n
56<\/td>\nFigure D.3 \u2013 P class filter coefficient example (N = 2 \u00d7 (16 \u2013 1) = 30)
Figure D.4 \u2013 P class filter response as a function of frequency <\/td>\n<\/tr>\n
57<\/td>\nD.7 M class reference model for phasor <\/td>\n<\/tr>\n
58<\/td>\nFigure D.5 \u2013 Reference algorithm filter frequencyresponse mask specification for M Class <\/td>\n<\/tr>\n
59<\/td>\nD.8 Data rate reduction model
Figure D.6 \u2013 M class filter coefficient example
Table D.1 \u2013 M class low pass filter parameters <\/td>\n<\/tr>\n
60<\/td>\nD.9 Trade-offs in the reference model
D.9.1 Immunity to off-nominal components, reporting latency and time alignment
Figure D.7 \u2013 Data rate reduction signal processing model
Figure D.8 \u2013 Factors affecting estimation <\/td>\n<\/tr>\n
61<\/td>\nD.9.2 Response time and the accuracy of synchrophasors, frequency and ROCOF measurements
Figure D.9 \u2013 Reference filter magnitude frequency response with Fs = 60 fps <\/td>\n<\/tr>\n
63<\/td>\nAnnex\u00a0E (informative)Synchrophasor measurement using sampled value input to PMU
E.1 General
E.2 Creation of sampled values
Figure E.1 \u2013 Synchrophasors having sampled values as inputs <\/td>\n<\/tr>\n
64<\/td>\nE.3 Sources of synchrophasor error when using sampled values
E.4 Performance
E.4.1 General
E.4.2 Steady-state performance considerations <\/td>\n<\/tr>\n
65<\/td>\nE.4.3 Dynamic performance considerations
E.4.4 Latency <\/td>\n<\/tr>\n
66<\/td>\nE.5 Proposed changes to performance requirements
Table E.1 \u2013 Summary of proposed performance requirement changes <\/td>\n<\/tr>\n
68<\/td>\nAnnex\u00a0G (normative)Extended accuracy specification for PMUs in steady-state
G.1 General
G.2 Applicable conditions
G.3 Accuracy specification
Table G.1 \u2013 Conditions for extended accuracy tests <\/td>\n<\/tr>\n
69<\/td>\nG.4 Usage examples
G.5 Preferred accuracy ranges
G.6 Testing issues
G.6.1 Testing for improved accuracy <\/td>\n<\/tr>\n
70<\/td>\nG.6.2 Testing at currents exceeding continuous thermal rating
G.6.3 Environmental considerations <\/td>\n<\/tr>\n
71<\/td>\nAnnex\u00a0H (informative)Generator voltage and power angle measurement
H.1 General
H.2 Measurement methods
H.3 Input signal
H.4 Measuring process <\/td>\n<\/tr>\n
72<\/td>\nFigure H.1 \u2013 Phasor diagram under no-load conditions
Figure H.2 \u2013 Phasor diagram with load on generator <\/td>\n<\/tr>\n
73<\/td>\nAnnex\u00a0I (normative)Extended PMU bandwidth classes
I.1 General
I.2 Bandwidth determination
I.3 Enhanced bandwidth classes
Table I.1 \u2013 Conditions for extended bandwidth testing <\/td>\n<\/tr>\n
74<\/td>\nI.4 Testing issues <\/td>\n<\/tr>\n
75<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE\/IEC International Standard – Measuring relays and protection equipment – Part 118-1: Synchrophasor for power systems – Measurements<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2018<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":398169,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-398163","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/398163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/398169"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=398163"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=398163"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=398163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}