Current Telemetry Dashboards

Lead from the frontTexas Nodalhttp://nodal.ercot.com 1

Current Telemetry Dashboards

NDSWG

May 19, 2009


QSE Telemetry (as of 04/30/09)


TDSP Telemetry (as of 04/30/09)


Load Observability (as of 04/30/09)

Lead from the frontTexas Nodal

State Estimator Convergence Rate – April 2009

http://nodal.ercot.com 5

2009 Monthly Convergence %

Jan 2009 - 80.27% Feb 2009 - 69.88% Mar 2009 - 89.49% Apr 2009 – 85.70%


State Estimator Convergence Rate – February 2009 – April 2009

State Estimator Convergence: February – April 2009

2009 Monthly Convergence %

Jan 2009 - 80.27% Feb 2009 - 69.88% Mar 2009 - 89.49% Apr 2009 – 85.70%


Key Numbers 91% Test Average Convergence; 100% for 8 of 27 Test Hours Primary issues affecting overall test included manual replacements

to address Zonal-Nodal mismatches On Day One, convergence dipped at HE 1100 from an ICCP link

going down and dipped again at HE 1400 owing to output data not currently telemetered to nodal (manual replacements to be made until nodal telemetry is running)

On Day Two, convergence started low owing to missing ICCP tags for several data points. ANA is communicating with MPs to address the issues and will do manual replacements until the tags are operable. Otherwise, the expected zonal-nodal mismatches kept convergence hovering at ≥92% for remaining test hours.

On Day Three, a replay of manual replacements from Day Two kept convergence at ≥92% for most test hours and at 96% for the day.


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

Focused Input Testing (FIT) III, Week 5 – State Estimator


Key Numbers 93.56% Test Average Convergence; 100% for 13 of 27 Test Hours On Day One, zonal-nodal mismatches and telemetry losses caused

convergence to dip below 90% for Hour Ending (HE) 0900 and HE 1200; convergence achieved 92% or better for all remaining test hours for the day

On Day Two, an ICCP link went down during HE 1400, causing convergence to dip to 73% for the hour; convergence achieved 92% or better for all remaining test hours for the day

On Day Three, An ICCP link went down during HE 1500, causing convergence to dip to 64% for the hour; zonal-nodal mismatches affected HE 1500 with an 86% convergence for the hour; convergence achieved 92% or better for all remaining test hours for the day

Overall, the majority of issues affecting convergence during testing hours were due to mismatches between zonal and nodal telemetry


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

FIT III, Week 6 – State Estimator

Lead from the frontTexas NodalLFC04/20/23

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 5 – 7, 2009 94.34 94.47 91.87 93.56 13 of 27 hrs

Trends – FIT II & FIT III

9


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

}


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

Date post:	09-Jan-2016
Category:	Documents
Upload:	kalb
View:	47 times
Download:	0 times

Current Telemetry Dashboards

Documents