1 © 2008 osisoft, inc. – all rights reserved pi t&d users group steve lathrop, pacificorp...
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3 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Area Planning Substation, sub-transmission and non-Main Grid transmission infrastructure Future Infrastructure needs (long-range planning) Daily Operations Issues Asset load analysis Load projections Capital spending Risk-Management dataTRANSCRIPT
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1© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Steve Lathrop, PacifiCorp
Panel#2: A Day in the Life of Panel#2: A Day in the Life of Planners/EngineersPlanners/Engineers
2008 PI T&D Users Group Meeting, Atlanta, Sept 10-12
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2© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Agenda Area Planning at PacifiCorp Infrastructure Planning Load Duration Curves – a New View of Data Non-SCADA Asset Loads SCADA Accuracy
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3© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Area Planning Substation, sub-transmission and non-Main Grid
transmission infrastructure Future Infrastructure needs (long-range planning) Daily Operations Issues Asset load analysis Load projections Capital spending Risk-Management data
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4© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Area Planning Watch Lists
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5© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Area Planning Watch Lists
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6© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Area Planning Watch Lists
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7© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load / Voltage Analysis Alphabet soup:
– Real-time– Historical– Projected– Peak– Instantaneous– Average– Changing
….the differentiator between these is…Time
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8© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Area Coincident Loads
– Six transformers serve this area• Can I accurately determine area peak load and growth?
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9© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Area Coincident Loads—Load profiles for the six:
FIREHOLE T1 MVA HR AVG.Value
FIREHOLE T2 MVA HR AVG.Value
RKS_T1_MVA 1-HR AVG.Value
RKS_T2_MVA 1-HR AVG.Value
VET T1 MVA HOURLY AVG.Value
VET T2 MVA HOURLY AVG.Value
Plot-0
7/1/2008 12:00:00 AM 8/15/2008 12:00:00 AM45.00 days
5
10
15
20
0
25
2.32103
4.61375
7.69536
7.16854
9.03582
6.88171
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10© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Area Coincident Loads—Projected loads
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11© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Area Coincident Loads—Add all loads coincidentally
FIREHOLE T1 MVA HR AVG.Value
FIREHOLE T2 MVA HR AVG.Value
RKS_T1_MVA 1-HR AVG.Value
RKS_T2_MVA 1-HR AVG.Value
VET T1 MVA HOURLY AVG.Value
VET T2 MVA HOURLY AVG.Value
RKS+FRH+VET MVA HOURLY AVG.Value
Plot-0
7/1/2008 12:00:00 AM 8/15/2008 12:00:00 AM45.00 days
10
20
30
40
50
60
70
0
75
36.5846
2.32103
4.61375
7.69536
7.16854
9.03582
6.88171
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12© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Area Coincident Loads—Projected growth of area load
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13© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning
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14© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning
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15© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Infrastructure Planning Load Projections
– Multiple Load Duration Tool v1.1
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16© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves Time-Series data converted to time-independent data
– Simplifies analysis– Non-engineers understand it
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17© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves Demonstrate peak loads, duration of peaks and how
many hours load limits are exceeded
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18© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves Rearrange data: load-dependent, not time-dependent
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19© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves
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20© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves
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21© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Load Duration Curves
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22© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Non-SCADA Asset Loads Substation C has no electronic metering. Can I get
load profile data for it?– My Power Flow suggests 1 MW losses total for line
sections 1-4 at peak load
A
B
C D1
2
3 4
?
SCADASCADA
CIS
Source
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23© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Non-SCADA Asset Loads Substation C load is approximated by:
Sub C = Sub A – Sub B – Sub D – 1 MW
SCADASCADA
CIS
A
B
C D1
2
3 4
~
Source
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24© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Non-SCADA Asset LoadsCHAPPEL-BIG PINEY LINE 78.Value
PINEDALE AVG MW.Value
BIG PINEY CALC, 1-HR AVG.Value
Plot-0
1/1/2008 12:00:00 AM 7/1/2008 12:00:00 AM181.96 days
5
10
15
20
25
30
35
0
40
4.90707
5.206
11.1131
Black trace is my ‘pseudo-SCADA’ load profile
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25© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Verify SCADA Accuracy Transformer appeared to be overloaded
PLATTE #4 T-3532_SINC_MVA 1-HR AVG.Value
Plot-0
7/8/2007 12:00:00 AM 7/15/2007 12:00:00 AM7.00 days
5
10
15
20
25
0
3019.6244
20-MVA loading guideline
105% loading
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26© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Verify SCADA Accuracy
PLT 115KV MW SUM HOURLY AVG.Value
PLT T-3513, 230-115 MVA HOURLY AVG.Value
PLT 115KV ERROR MVA.Value
Plot-0
7/8/2007 12:00:00 AM 7/15/2007 12:00:00 AM7.00 days
10
20
30
40
50
60
70
0
80
6.13779
62.7938
68.9315
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27© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Verify SCADA Accuracy
PLT 115KV MW SUM HOURLY AVG.Value
PLT T-3513, 230-115 MVA HOURLY AVG.Value
PLT 115KV ERROR MVA.Value
PLATTE #4 T-3532_SINC_MVA 1-HR AVG.Value
Plot-0
7/8/2007 12:00:00 AM 7/22/2007 12:00:00 AM14.00 days
10
20
30
40
50
60
70
0
80
10.9807
-0.03728
29.1733
29.1360
‘Problem’ surfaced
Error ‘Tag’ built
Transducer Change-out
Error goes to zero
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28© 2008 OSIsoft, Inc. – All Rights ReservedPI T&D Users Group
Verify SCADA Accuracy
Questions?