Current Telemetry Dashboards

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Current Telemetry Dashboards

NDSWG

June 16, 2009


QSE Telemetry (as of 06/08/09)


TDSP Telemetry (as of 06/08/09)


Load Observability (as of 06/08/09)

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State Estimator Daily Convergence Rates – May 2009

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2009 Monthly Convergence %

Jan 2009: 80% Feb 2009: 70% Mar 2009: 90% Apr 2009: 86% May: 77%


State Estimator Monthly Convergence Rates – March 2009 – May 2009

2009 Monthly Convergence %

Jan 2009: 80% Feb 2009: 70% Mar 2009: 90% Apr 2009: 86% May: 77%


Key Numbers 97.07% Test Average Convergence/ 100% for 18 of 26 Test Hours. On Day One, zonal-nodal mismatches caused convergence to dip

below to 87% for Hour Ending (HE) 1300 and 85% for HE 1400. A convergence of 100% was achieved during 7 of 9 test hours.

On Day Two, zonal-nodal mismatches caused convergence to hover at 92% for the morning hours, followed by a convergence rate of 100% for each of the six consecutive hours remaining in the test day.

On Day Three, a failover of the Energy Management System (EMS) was required during HE 1100 to accommodate a database load to bring new model updates online. As a result, one test hour was excluded from the test results, and the average convergence rate for the overall test was calculated over 26 test hours rather than the 27 hours originally scheduled.

The convergence percentages for FIT III Wk 7 were the highest yet recorded for the FIT III series, with the rounded daily percentages all hitting the 97% Stated Estimator performance standard.


FIT III Assessment reports will be posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html

FIT III, Week 7 – State Estimator


Key Numbers 88.62% Test Average Convergence; 100% for 10 of 27 Test Hours; majority

of issues attributed to zonal-nodal mismatches. On Day One, the convergence rate for Hour Ending (HE) 0900 dipped to 55%

owing to one ICCP link being down. Multiple manual replacements were made during HE 1000 and HE 1400 to address a disconnect issue and generation units coming online—convergence rates during these hours dipped to 85% and 71% respectively. Convergence rates achieved 92% or higher for the remaining six test hours for the day.

On Day Two, the convergence rate for HE 1400 dipped to 54% owing to two ICCP links being down. Multiple manual replacements were made during HE 1500 to address a disconnect issue and zonal-nodal mismatches. Convergence rates achieved 92% or higher for the remaining seven test hours for the day.

On Day Three, the convergence rate for HE 1500 dipped to 80% owing to multiple manual replacements being made to address zonal-nodal mismatches. Convergence rates achieved 92% or higher for the remaining eight test hours for the day.


FIT III Assessment reports will be posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html

FIT III, Week 8 – State Estimator

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FIT Series

Week Date Day 1 Day 2 Day 3 Average Convergence % for all Test

Hours

100% Convergence Achieved

FIT II Week 1 Oct 21 – 23, 2008 90.18 74.16 91.83 85.39 12 of 27 hrs

Week 2 Nov 04 – 06, 2008 88.17 96.58 97.11 93.95 18 of 27 hrs

Week 3 Nov 18 – 20, 2008 87.17 84.19 82.91 84.76 12 of 27 hrs

Week 4 Dec 02 – 04, 2008 96.04 93.33 93.44 94.27 14 of 27 hrs

Week 5 Dec 16 – 18, 2008 94.74 97.49 96.30 96.18 19 of 27 hrs

Week 6 Jan 13 – 15, 2009 96.00 94.12 95.78 95.30 15 of 27 hrs

Week 7 Jan 27 – 29, 2009 94.07 90.13 93.29 92.49 14 of 27 hrs

FIT III

Week 1 Feb 24 – 26, 2009 75.45 78.86 92.85 82.39 09 of 27 hrs

Week 2 Mar 10 – 12, 2009 96.82 92.97 98.41 96.07 20 of 27 hrs

Week 3 Mar 24 - 26, 2009 85.45 94.98 94.70 91.71 14 of 27 hrs

Week 4 Apr 07 - 09, 2009 97.13 92.60 97.44 95.72 21 of 27 hrs

Week 5 Apr 21 – 23, 2009 87.47 89.87 95.65 91.00 8 of 27 hrs

Week 6 May 05 – 07, 2009 94.34 94.47 91.87 93.56 13 of 27 hrs

Week 7 May 19 – 21, 2009 96.81 97.36 97.04 97.07 18 of 26 hrs

Week 8 Jun 02 – 04, 2009 88.47 84.09 93.29 88.62 10 of 27 hrs

Trends – FIT II & FIT III

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One hour was removed from the Wk 7 test results to accommodate a nodal database load.


Appendix: Telemetry & State Estimator

Overview of Reports, Processes, and Data


ICCP

• Telemetry Support• Telemetry Reporting• State Estimator Tuning• New Telemetry Point Addition Process• Telemetry Issue Process• Current Telemetry Status• Telemetry Status Whereabouts


Telemetry Support

• ERCOT Full Time Staff ICCP Support– Advanced Network Applications Support 2 Engineers– Control Room 1 Operations Analyst & 1 Shift Engineer– IT 2 System Analysts– Additional Staff on a part time basis

• Market Participants– Contact for Nodal Issues– Timely Response on detected issues


Telemetry Dashboards

FIT II & FIT III Assessment reports are posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html

• The following Telemetry Dashboards are being posted on the Readiness Center:– Observability– QSER & TDSP Telemetry

• The link for these dashboards is:

http://nodal.ercot.com/readiness/eds1/documents/index.html

• These dashboards are currently being posted monthly following each mid-month Nodal database update.

• Report questions can be sent to [email protected]


Telemetry Dashboards

TelemetryDashboards

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Telemetry Reporting – QSER/TDSP Dashboard

QSER & TDSP Dashboard

Questions may be sent to: [email protected]


Telemetry Reporting – Observability Dashboard

The number of unobservable buses in the system with all pseudo measurement removed.

The number of current unobservable buses in the system that have a load at the station where

telemetry is required to make the bus observable.

Buses that are unobservable due to a PUN load at the station.

If a number other then 0 is in column B, then there is missing telemetry which requires Market Participant Corrective Action.

Questions may be sent to: [email protected]


Telemetry Reporting

State Estimator (SE) Convergence

• SE & Supporting Telemetry Information is posted on EDW MIS The link is: https://nodaleds.ercot.com/pps/tibco/mis/Pages/Market+Information/

Real+Time+Market • Advanced Network Applications

provides analysis assistance and be reached at the EDS2 email: [email protected]


SE Convergence Supporting Information on EDW MIS

Click on More State Estimator

Reports and Extracts


SE Convergence Supporting Information on EDW MIS

Click on More State

Estimator Convergence Rate Reports


State Estimator Tuning

• FIT– Monitors Telemetry– Compares Generation between Zonal & Nodal

• ICCP Support Team– Analysis Support of FIT Issues– ICCP Issue Resolution Support– Produce FIT Report


FIT Telemetry Reporting

FIT Report• Log of Events & Observations

– The daily logs published in the bi-weekly FIT Reports provide a window into the types of issues that affect convergence during FIT testing hours.

• FIT Reports are posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html

Questions can be sent to [email protected]


New Telemetry Point Addition Process

MP (QSER or TSP) has new ICCP point to

activate

MP Consults ICCP Handbook to

determine data point names

MP fills out ICCP Change Request Form

MP creates a Service Request via the Texas

Market Link on ERCOT.com

MP attaches completed ICCP

Change Request form to Service Request

ERCOT ICCP Team receives and

processes each Service Request

No

ERCOT ICCP Team contacts MP to confirm the changes

ERCOT ICCP Team notifies the MP

upon completion of the Service Request

Service Request Issues?

Yes

ERCOT ICCP Team makes changes to

ICCP

No

MP has submitted & completed

Model Change

ICCP Standards Questions?

Yes


Current Telemetry Issue Process

ERCOT or Market Participant detects Telemetry, ICCP or other System Issue

Market Participant investigates to

determine correct ability

Requires ERCOT assistance to

resolve?

Contact ERCOT ANA by email

[email protected] for assistance

Yes

No

ERCOT Analyzes Issue and determines

corrective action

ERCOT Contacts MP to Affect Correction

Issue Resolved?

Done

Yes

NoMP Corrects Issue

During FIT? No

Yes

Contact ERCOT Shift Engineer @

512-248-6345

Current Telemetry Dashboards

Documents

Transcript of Current Telemetry Dashboards