scada and ami data meet to improve distribution...

SCADA and AMI Data Meet to Improve Distribution Planning

Presented by James Turner, PE

6841 Power Lane SW • Alexandria, Minnesota Tel 320.762.1697 • Fax 320.762.1479

www.star-energy.com • [email protected]

Distribution Planning

Peak Substation Meter Data

Monthly Billing Data

Distribution Planning - SCADA

Peak Feeder Data (via SCADA)

Monthly Billing Data

Distribution Planning - AMI

Interval Usage Data from AMI

What Did I Do?

AMI System

Aclara™ – Power Line Carrier

kWH – 1 hour intervals

Software Used

Meter Data Management System (MDMS) – NISC®

Software Used

Engineering Model -WindMil®

Software Used

Geographic Information System (GIS) -ESRI®

Setup FileMapLocation meterNo phaseCode Power Factor00.04.02(10) 48567 C 99

00.04.03(10) 50757 C 99

00.04.04(20) 48563 ABC 90

00.04.05(20) 48551 C 9900.04.06(20) 48550 C 99

00.04.07(20) 48548 C 9900.04.07(20) 50759 BC 99

00.04.08(11) 48132 BC 99

00.05.01(10) 48561 BC 9900.05.03(10) 45682 C 99

00.05.04(10) 45699 C 9900.05.05(20) 48562 C 99

00.05.07(20) 48560 C 99

00.05.08(20) 48549 AB 9900.05.09(70) 44812 AB 99

00.06.01(10) 45683 C 99

00.06.02(10) 45696 A 99

00.06.03(10) 50348 ABC 9000.06.04(70) 44815 C 99

00.06.05(70) 28403 A 9900.07.01(10) 45685 C 9900.07.02(10) 45684 BC 90

00.07.04(10) 48572 C 9900.07.05(10) 51514 C 99

00.07.06(10) 45687 C 99

00.07.07(20) 45697 A 99

00.07.08(20) 55306 C 99

MultiSpeak® interface between GIS map and Customer Information System (CIS) system

Process Data Python script

.txt output (in .CLD format)con00.04.02(10) 0 0 0.704 0 0 0.100314567 0 0 1

con00.04.03(10) 0 0 3.36 0 0 0.47877407 0 0 1

con00.04.04(20) 0 0 2.752 0 0 0.392138762 0 0 1

con00.04.05(20) 0 0 1.92 0 0 0.273585183 0 0 1

con00.04.06(20) 0 0 1.728 0 0 0.246226664 0 0 1

con00.04.07(20) 0 0 3.52 0 0 0.501572835 0 0 1

con00.04.07(20) 0 0 4.8000001 0 0 0.683962971 0 0 1

con00.04.08(11) 0 0 0 0 0 0 0 0 1

con00.05.01(10) 0 0 0.96 0 0 0.136792591 0 0 1

con00.05.03(10) 0 0 2.368 0 0 0.337421725 0 0 1

con00.05.04(10) 0 0 0.448 0 0 0.063836543 0 0 1

con00.05.05(20) 0 0 2.944 0 0 0.41949728 0 0 1

con00.05.07(20) 0 0 2.56 0 0 0.364780244 0 0 1

con00.05.08(20) 0 0 0.704 0 0 0.100314567 0 0 1

con00.05.09(70) 0 0 43.520004 0 0 6.20126471 0 0 1

con00.06.01(10) 0 0 4.416 0 0 0.62924592 0 0 1

con00.06.02(10) 1.728 0 0 0.246226664 0 0 1 0 0

con00.06.03(10) 2.5600002 0 0 0.364780272 0 0 1 0 0

con00.06.04(70) 0 0 28.800001 0 0 4.103777882 0 0 1

con00.06.05(70) 7.6800003 0 0 1.094340773 0 0 1 0 0

con00.07.01(10) 0 0 3.648 0 0 0.519811847 0 0 1

con00.07.02(10) 0 0 3.264 0 0 0.46509481 0 0 1

Into the Model

Retrieve load -importing .CLD did not work

Results

Calculating Results

Feeder SCADA Amps

vs.

Model Calculated Data with AMI

Positive percentage indicates that SCADA was higher than the Model

ResultsFIXED VOLTAGES AT REGULATOR Feeder 1 Feeder 2 Feeder 3 Feeder 4 Feeder 5

Date Start Time End Time Phase A Phase B Phase C Total Phase A Phase B Phase C Total Phase A Phase B Phase C Total Phase A Phase B Phase C Total Phase A Phase B Phase C Total

2019-07-04 17:00 17:59 SCADA 80.944 94.336 109.305 284.586 7.208 3.229 5.096 15.532 11.242 12.843 9.043 33.127 25.739 119.533 29.156 174.428 18.424 9.429 4.889 32.743

Windmil Model 65.761 92.644 104.939 263.344 6.677 3.600 5.504 15.781 12.227 14.418 10.323 36.968 27.256 134.503 27.433 189.192 20.475 8.219 4.116 32.810

SCADA PF 0.984 0.981 0.973 0.934 -0.199 -0.962 0.922 0.888 0.947 0.996 0.978 0.999 0.981 0.975 0.989

18.76% 1.79% 3.99% 7.46% 7.36% -11.49% -8.02% -1.60% -8.76% -12.27% -14.16% -11.59% -5.89% -12.52% 5.91% -8.46% -11.13% 12.83% 15.81% -0.21%

2019-07-10 13:00 13:59 SCADA 50.932 47.804 62.726 161.463 3.852 1.341 4.968 10.160 25.608 27.126 24.714 77.448 21.213 58.835 23.449 103.498 29.889 22.328 19.459 71.676

Windmil Model 42.714 49.360 60.250 152.324 4.090 1.629 5.221 10.940 27.335 27.691 24.705 79.731 21.863 67.818 20.777 110.458 29.124 21.981 17.334 68.439

eDNA PF 0.994 0.992 0.986 0.981 -0.775 -0.955 0.915 0.915 0.914 -0.909 0.999 -0.984 0.959 0.935 0.922

16.14% -3.25% 3.95% 5.66% -6.18% -21.49% -5.10% -7.67% -6.74% -2.08% 0.04% -2.95% -3.06% -15.27% 11.40% -6.72% 2.56% 1.56% 10.92% 4.52%

2019-07-10 22:00 22:59 SCADA 47.047 42.782 49.656 139.485 3.517 1.218 3.241 7.976 13.975 15.616 13.941 43.532 16.930 55.208 22.206 94.344 18.118 12.123 9.174 39.415

Windmil Model 39.350 42.983 48.506 130.839 3.504 1.381 3.700 8.585 15.423 17.666 14.253 47.342 17.158 63.788 19.373 100.319 18.023 11.795 8.306 38.124

SCADA PF 0.997 0.997 0.991 0.971 -0.871 -0.933 0.915 0.915 0.931 -0.997 0.992 0.693 0.983 0.979 0.966

16.36% -0.47% 2.32% 6.20% 0.37% -13.40% -14.16% -7.64% -10.36% -13.13% -2.24% -8.75% -1.35% -15.54% 12.76% -6.33% 0.52% 2.70% 9.47% 3.28%

2019-07-13 07:00 07:59 SCADA 44.529 47.202 65.338 157.069 3.679 1.312 3.950 8.941 11.028 12.383 10.612 34.024 15.103 53.329 17.704 86.136 9.783 4.459 2.392 16.634

Windmil Model 38.679 48.927 62.618 150.224 3.904 1.613 4.509 10.026 12.831 14.163 11.652 38.646 15.146 59.043 16.382 90.571 9.791 5.044 2.874 17.709

SCADA PF 0.996 0.997 0.989 0.990 -0.873 -0.930 0.919 0.894 0.938 -0.989 0.991 -0.997 0.883 -0.261 -0.933

13.14% -3.65% 4.16% 4.36% -6.12% -22.95% -14.15% -12.14% -16.35% -14.37% -9.80% -13.59% -0.28% -10.72% 7.47% -5.15% -0.08% -13.12% -20.14% -6.46%

2019-07-13 13:00 13:59 SCADA 67.209 60.370 96.137 223.716 7.494 2.269 7.590 17.353 12.752 16.908 12.119 41.778 22.235 84.821 25.177 132.234 19.709 9.113 5.563 34.385

Windmil Model 54.854 62.337 92.203 209.394 7.099 2.664 8.217 17.980 14.513 19.068 12.868 46.449 21.922 95.899 23.160 140.981 21.622 7.785 4.523 33.930

SCADA PF 0.987 0.988 0.977 0.946 -0.888 -0.854 0.912 0.918 0.922 0.951 0.982 0.978 0.981 0.969 0.979

18.38% -3.26% 4.09% 6.40% 5.27% -17.40% -8.26% -3.61% -13.81% -12.78% -6.18% -11.18% 1.41% -13.06% 8.01% -6.62% -9.71% 14.58% 18.70% 1.32%

2019-07-13 22:00 22:59 SCADA 70.611 66.808 101.901 239.319 7.280 2.223 6.484 15.987 10.514 13.049 8.847 32.410 23.116 90.336 28.907 142.359 15.047 7.683 4.354 27.085

Windmil Model 57.175 65.292 95.851 218.318 6.709 2.548 6.564 15.821 11.829 14.487 9.842 36.158 23.794 101.673 24.759 150.226 16.798 6.455 3.476 26.729

SCADA PF 0.988 0.986 0.969 0.945 -0.904 -0.997 0.904 0.891 0.895 0.996 0.980 0.998 0.977 0.975 0.978

19.03% 2.27% 5.94% 8.78% 7.84% -14.60% -1.23% 1.04% -12.51% -11.02% -11.25% -11.57% -2.93% -12.55% 14.35% -5.53% -11.64% 15.99% 20.17% 1.31%

2019-07-14 02:00 02:59 SCADA 42.008 37.541 55.085 134.633 4.567 1.456 3.324 9.347 8.752 9.517 8.491 26.759 13.724 50.715 15.924 80.364 11.438 4.938 4.057 20.433

Windmil Model 36.985 38.550 52.367 127.902 4.250 1.683 3.684 9.617 10.387 11.163 9.139 30.689 13.695 56.577 14.155 84.427 13.921 4.601 3.332 21.854

SCADA PF 0.992 0.993 0.980 0.932 -0.919 -0.949 0.897 0.882 0.921 -0.908 0.989 0.354 0.981 0.985 0.992

11.96% -2.69% 4.93% 5.00% 6.93% -15.63% -10.82% -2.89% -18.69% -17.30% -7.63% -14.68% 0.21% -11.56% 11.11% -5.06% -21.71% 6.82% 17.86% -6.96%

2019-07-15 21:00 21:59 SCADA 69.098 68.297 79.606 217.000 5.788 2.850 6.906 15.544 16.248 19.092 15.179 50.518 26.633 78.842 31.980 137.454 22.681 14.453 9.328 46.461

Windmil Model 52.666 64.217 75.761 192.644 5.302 2.702 5.421 13.425 17.878 21.132 15.484 54.494 25.417 92.633 26.019 144.069 23.408 14.028 8.349 45.785

SCADA PF 0.989 0.986 0.980 0.972 -0.979 -0.990 0.912 0.905 0.929 0.998 0.982 0.995 0.980 0.966 0.948

23.78% 5.97% 4.83% 11.22% 8.40% 5.19% 21.50% 13.63% -10.04% -10.69% -2.01% -7.87% 4.56% -17.49% 18.64% -4.81% -3.21% 2.94% 10.49% 1.46%

2019-07-16 21:00 21:59 SCADA 61.916 61.588 71.857 195.361 5.281 1.984 5.518 12.784 17.136 17.671 15.470 50.276 23.009 73.483 29.959 126.451 21.773 14.252 8.537 44.561

Windmil Model 51.746 63.300 73.864 188.910 4.745 2.391 6.987 14.123 18.358 20.089 15.958 54.405 24.909 92.365 27.185 144.459 22.733 12.140 8.786 43.659

SCADA PF 0.988 0.987 0.979 0.977 -0.914 -0.977 0.914 0.890 0.911 0.999 0.980 0.996 0.983 0.978 0.961

16.43% -2.78% -2.79% 3.30% 10.15% -20.49% -26.61% -10.47% -7.13% -13.68% -3.16% -8.21% -8.26% -25.70% 9.26% -14.24% -4.41% 14.82% -2.92% 2.03%

2019-07-17 21:00 21:59 SCADA 68.441 62.587 76.472 207.499 4.221 1.952 5.512 11.686 16.432 18.623 15.256 50.311 24.035 73.997 31.200 129.233 24.703 15.383 11.908 51.994

Windmil Model 57.173 67.817 73.524 198.514 4.070 2.686 5.268 12.024 18.701 22.138 16.556 57.395 24.504 93.832 27.988 146.324 25.264 14.795 10.594 50.653

SCADA PF 0.986 0.986 0.978 0.957 -0.965 -0.985 0.926 0.914 0.938 0.996 0.980 0.991 0.961 0.939 0.910

16.46% -8.36% 3.86% 4.33% 3.58% -37.59% 4.43% -2.90% -13.81% -18.87% -8.52% -14.08% -1.95% -26.80% 10.30% -13.23% -2.27% 3.82% 11.04% 2.58%

2019-07-18 21:00 21:30 SCADA 73.973 72.929 95.189 242.091 9.011 1.977 5.009 15.996 17.558 20.968 17.053 55.578 24.888 90.551 36.008 151.446 28.549 19.031 14.211 61.791

Windmil Model 59.866 76.376 90.722 226.964 8.631 2.835 5.115 16.581 19.124 22.941 16.932 58.997 26.630 108.974 33.600 169.204 30.640 15.746 11.381 57.767

SCADA PF 0.980 0.979 0.973 0.934 -0.911 -0.967 0.907 0.894 0.923 0.994 0.980 0.990 0.954 0.943 0.915

19.07% -4.73% 4.69% 6.25% 4.21% -43.42% -2.11% -3.65% -8.92% -9.41% 0.71% -6.15% -7.00% -20.35% 6.69% -11.73% -7.33% 17.26% 19.92% 6.51%

2019-07-19 21:00 21:59 SCADA 63.238 76.061 82.694 221.994 5.824 1.443 5.775 13.041 13.272 16.919 12.271 42.462 24.007 83.643 25.083 132.733 18.623 9.891 4.961 33.474

Windmil Model 49.621 73.481 76.524 199.626 5.273 1.488 4.301 11.062 14.111 16.789 12.648 43.548 21.368 89.548 22.240 133.156 16.042 8.064 3.913 28.019

SCADA PF 0.988 0.988 0.980 0.970 -0.911 -0.972 0.875 0.884 0.879 0.871 0.982 1.000 0.975 0.969 0.971

21.53% 3.39% 7.46% 10.08% 9.45% -3.15% 25.53% 15.18% -6.32% 0.77% -3.08% -2.56% 10.99% -7.06% 11.33% -0.32% 13.86% 18.47% 21.13% 16.30%

2019-07-24 17:00 17:59 SCADA 63.542 61.646 78.471 203.659 7.644 3.094 5.269 16.007 17.792 20.137 17.950 55.878 23.489 75.695 29.356 128.539 22.353 11.613 8.354 42.321

Windmil Model 52.906 62.781 75.258 190.945 7.343 3.532 5.528 16.403 18.902 21.620 18.396 58.918 23.931 87.954 26.321 138.206 21.421 11.469 7.090 39.980

SCADA PF 0.985 0.985 0.974 0.948 -0.082 -0.973 0.909 0.902 0.907 0.996 0.980 0.991 0.954 0.954 0.932

16.74% -1.84% 4.09% 6.24% 3.94% -14.15% -4.92% -2.47% -6.24% -7.37% -2.49% -5.44% -1.88% -16.20% 10.34% -7.52% 4.17% 1.24% 15.13% 5.53%

2019-07-26 14:00 14:59 SCADA 88.918 82.130 107.357 278.405 7.304 2.075 6.154 15.533 19.818 23.112 18.154 61.084 25.013 96.652 30.286 151.950 23.078 12.872 8.886 44.837

Windmil Model 67.158 80.919 99.919 247.996 6.757 2.602 6.626 15.985 21.634 24.441 18.555 64.630 25.722 113.225 27.493 166.440 24.373 11.039 6.839 42.251

SCADA PF 0.962 0.956 0.946 0.933 -0.976 -0.991 0.912 0.913 0.901 1.000 0.980 0.997 0.962 0.945 0.944

24.47% 1.47% 6.93% 10.92% 7.49% -25.40% -7.68% -2.91% -9.16% -5.75% -2.21% -5.81% -2.84% -17.15% 9.22% -9.54% -5.61% 14.24% 23.04% 5.77%

2019-08-05 02:00 02:59 SCADA 41.953 35.801 47.018 124.772 5.372 0.812 3.293 9.478 8.741 10.424 8.876 28.042 13.556 45.267 14.731 73.553 10.020 5.942 4.041 20.003

Windmil Model 36.170 37.355 45.079 118.604 4.894 1.075 3.655 9.624 10.418 11.759 9.658 31.835 13.140 51.215 13.401 77.756 9.686 5.970 4.070 19.726

SCADA PF 0.993 0.993 0.977 0.935 -0.833 -0.936 0.897 0.884 0.923 -0.898 0.990 -0.651 0.977 0.986 0.991

13.78% -4.34% 4.12% 4.94% 8.90% -32.35% -10.98% -1.54% -19.19% -12.80% -8.81% -13.53% 3.07% -13.14% 9.03% -5.71% 3.33% -0.47% -0.71% 1.39%

2019-08-05 14:00 14:59 SCADA 70.921 61.326 75.561 207.809 4.717 1.119 5.966 11.802 26.549 28.788 25.071 80.408 19.607 72.421 24.379 116.408 28.734 22.935 19.458 71.127

Windmil Model 55.216 62.321 70.422 187.959 4.578 1.517 6.139 12.234 28.194 29.470 24.991 82.655 19.553 84.896 22.139 126.588 27.549 21.632 16.457 65.638

SCADA PF 0.965 0.955 0.955 0.951 -0.879 -0.991 0.910 0.907 0.889 0.902 0.983 0.942 0.935 0.929 0.885

22.14% -1.62% 6.80% 9.55% 2.94% -35.58% -2.90% -3.66% -6.20% -2.37% 0.32% -2.79% 0.28% -17.23% 9.19% -8.75% 4.12% 5.68% 15.42% 7.72%

Per Phase Results

Feeder level SCADA vs. Model

43.42% was a differences of 0.911 Amps

Feeder 1 Feeder 2 Feeder 3 Feeder 4 Feeder 5

Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C

SCADA 80.944 94.336 109.305 7.208 3.229 5.096 11.242 12.843 9.043 25.739 119.533 29.156 18.424 9.429 4.889

Windmil Model 65.761 92.644 104.939 6.677 3.600 5.504 12.227 14.418 10.323 27.256 134.503 27.433 20.475 8.219 4.116

SCADA PF 0.984 0.981 0.973 0.934 -0.199 -0.962 0.922 0.888 0.947 0.996 0.978 0.999 0.981 0.975 0.989

18.76% 1.79% 3.99% 7.36% -11.49% -8.02% -8.76% -12.27% -14.16% -5.89% -12.52% 5.91% -11.13% 12.83% 15.81%


Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C Phase A Phase B Phase C

SCADA 69.098 68.297 79.606 5.788 2.850 6.906 16.248 19.092 15.179 26.633 78.842 31.980 22.681 14.453 9.328

Windmil Model 52.666 64.217 75.761 5.302 2.702 5.421 17.878 21.132 15.484 25.417 92.633 26.019 23.408 14.028 8.349

SCADA PF 0.989 0.986 0.980 0.972 -0.979 -0.990 0.912 0.905 0.929 0.998 0.982 0.995 0.980 0.966 0.948

23.78% 5.97% 4.83% 8.40% 5.19% 21.50% -10.04% -10.69% -2.01% 4.56% -17.49% 18.64% -3.21% 2.94% 10.49%

Average Single Phase 9.85%

Median Single Phase 8.81%

Max Single Phase 43.42%

Min Single Phase 0.04%

Absolute values used

3-Phase Results


Total Total Total Total Total

SCADA 284.586 15.532 33.127 174.428 32.743

Model 263.344 15.781 36.968 189.192 32.810

7.46% -1.60% -11.59% -8.46% -0.21%

SCADA 161.463 10.160 77.448 103.498 71.676

Model 152.324 10.940 79.731 110.458 68.439

5.66% -7.67% -2.95% -6.72% 4.52%

SCADA 139.485 7.976 43.532 94.344 39.415

Model 130.839 8.585 47.342 100.319 38.124

6.20% -7.64% -8.75% -6.33% 3.28%

SCADA 157.069 8.941 34.024 86.136 16.634

Model 150.224 10.026 38.646 90.571 17.709

4.36% -12.14% -13.59% -5.15% -6.46%

SCADA 223.716 17.353 41.778 132.234 34.385

Model 209.394 17.980 46.449 140.981 33.930

6.40% -3.61% -11.18% -6.62% 1.32%

SCADA 239.319 15.987 32.410 142.359 27.085

Model 218.318 15.821 36.158 150.226 26.729

8.78% 1.04% -11.57% -5.53% 1.31%

3-Phase Current Comparison

% Error FDR 1 FDR 2 FDR 3 FDR 4 FDR 5

Max 11.22% 15.18% -2.56% -0.32% 16.30%

Min 3.30% -12.14% -14.68% -14.24% -6.96%

Average 6.65% -2.03% -9.00% -7.34% 2.69%

Three Phase AmpacitySCADA vs AMI Model

Percentage Difference

Average 6.70%

Median 6.24%

Max 16.30%

Min 0.21%Absolute values used

16.30% was a differences of 5.455 Amps

24.356 Amps was largest difference› 217 Amp loading

Feeder Loading vs. % Error

0.000

50.000

100.000

150.000

200.000

250.000

300.000

-20.00% -15.00% -10.00% -5.00% 0.00% 5.00% 10.00% 15.00% 20.00%

Load

in A

mp

s

Percent Error


Power Factor vs. % Error

0.940

0.950

0.960

0.970

0.980

0.990

1.000

-10.00% -5.00% 0.00% 5.00% 10.00% 15.00% 20.00% 25.00% 30.00%

Pow

er F

acto

r

Percent Error

Feeder 1

FDR 1 PH A FDR 1 PH B FDR 1 PH C

Percentile of Error Percentage

Percentile Single Phase Three Phase

100.00% 43.42% 16.30%

95.00% 22.39% 13.99%

90.00% 19.05% 12.79%

85.00% 17.26% 11.36%

80.00% 15.66% 10.16%

70.00% 13.14% 8.14%

60.00% 10.99% 6.82%

50.00% 8.81% 6.24%

40.00% 6.72% 5.53%

30.00% 4.35% 4.39%

20.00% 2.94% 2.94%

10.00% 1.86% 1.77%

Absolute values used

Voltage Drop

Saturday Aug 17 2019 @ 17:00 hrs Monday Aug 19 2019 @ 2:00 hrs

Feeder CLD Data AMI Data CLD Data AMI Data

Ph A Ph B Ph C Ph A Ph B Ph C Ph A Ph B Ph C Ph A Ph B Ph C

2 123.841 247 123.398 247

1 122.765 244 123.742 246

1 125.497 124.806 123.461 290 290 287 125.164 124.92 124.599 290 291 289

1 122.853 240 124.373 246

1 123.973 124.399 124.108 284 285 284 123.507 123.661 123.606 285 284 286

1 122.831 243 123.646 246

4 124.82 248 123.7 30 249

3 123.743 124.522 124.359 123 123 123 123.244 123.466 123.446 123 123 124

4 122.601 121.324 124.975 123 122 124 123.067 122.637 123.866 123 123 125

4 119.936 240 122.117 244

5 122.925 124.513 124.429 283 286 286 123.168 123.6 123.576 285 285 286

1 121.193 244 124.034 249

CLD data is the model

AMI data is meter reading

Voltage Drop

Voltage Percentage

Max Over 2.87 2.39%

Max Under -1.241 -1.03%

*Based on Nominal (120V)

Percentile

100.00% 2.39%

95.00% 1.63%

90.00% 1.18%

85.00% 1.04%

80.00% 0.95%

70.00% 0.74%

60.00% 0.62%

50.00% 0.54%

40.00% 0.44%

30.00% 0.31%

20.00% 0.24%

10.00% 0.11%Absolute values used

Average – 0.63%

Bad DataFeeder 1 Feeder 4

Phase A Phase B Phase C Total Phase A Phase B Phase C Total

SCADA 27.573 27.119 42.702 97.394 4.406 30.648 5.366 40.420

Windmil Model 41.648 49.916 61.598 153.162 18.773 65.308 18.263 102.344

-51.05% -84.06% -44.25% -57.26% -326.07% -113.09% -240.34% -153.20%

Sources of Error

Model Error

› Conductor type

› Not modeling transformers

› Secondary conductors

Sources of Error

Error in CIS

› Impacts MDM

› Impacts GIS

Sources of Error

Accuracy of recloser CTs & relay

Sources of Error

Non-typical system operations

› Temporary backfeed

Sources of Error

Distributed Energy Resources - DER

Sources of Error

Meter Change-out

Sources of Error

Id Asset ID Asset Type Service Location Meter Status Utility Start Date End Date

85 10008 ELECTRIC_METER 273201 ACTIVE runestoneelectric 2/20/1989 0:00 5/9/2000 0:00

85 10008 ELECTRIC_METER IN_STOCK runestoneelectric 5/9/2000 0:00 12/4/2015 11:24












Assumed Power Factor

› 0.90 lagging for commercial

› 0.99 lagging for residential

Sources of Error

Unbalanced 3-phase Loads

Sources of Error

Voltage at Regulator

Sources of Error

Reg A Reg B Reg C

Traditional 125 125 125

W/ Comp 123, R=4, X=0 123, R=4, X=0 123, R=5, X=0

Conclusion – Why Do This?

Voltage Drop

Actual distribution of loads during peak instead of averaging

Yesterday’s Model

One day look back instead of last month look back

Non-Peak Modeling

Easier to model any day not just monthly peaks

One Source of Data

Just the AMI, no SCADA, no substation meter

STAR Energy Services LLC

6841 Power Lane SW

Alexandria, MN 56308

Tel: 320.762.1697 ext. 133

Email: [email protected]

scada and ami data meet to improve distribution...

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