# Presentation: 149103

## by

Terry Bilke, Midwest ISO
Manu Parashar, EPG

**January 3, 2007**

**by**
**Terry Bilke, Midwest ISO**
**Manu Parashar, EPG**

**NASPI **
**Operations Initiatives Task Team **
**Display/Tool Conventions, Guidelines and Management**

## Overview

**Display and Tool Objectives**
**RDTMS Display Concepts**
**RTDMS Visualization**
**RTDMS Daily Summary Reports**
**Visualization in Other Applications**
**Linkage to the RTDMS**
**Display Management**

## Display and Tool Objectives

## Display and Tool Objectives

**Provide integrated **_**information**_** and **_**alerts**_** (Red, Yellow, Green) in a common centralized display - Dashboard Summary **
**Alert operators to significant changes, unusual conditions and encroachment of identified limits**
**Maintain consistent **_**wide area**_** user displays throughout the Interconnections**
**Some ability to customize RTDMS**
**Users can still tap into data stream for local applications **
**    **

## RDTMS Display Concepts

## RDTMS Display Concepts

**Based on User Needs**
**Provide an information hub for operators**
**There may be 20 or more parameters that can be monitored with phasor data, some may reside external to the RTDMS**
**Display *****Real Estate *****limited - It is likely only one window will be made available for NASPI applications**
**Bring operators’ attention to situations where something is beyond a hard limit or has changed significantly**
**E-mail alerts to bring more eyes in the control room for significant problems**
**Obtain Human Factors input**

## RDTMS Display Concepts (Continued)

**Common wide-area displays with one layer of local configurability**
**Additional information can be found within 2-3 mouse-clicks**
**Provide a backup layer of local visibility **
**Goal to make displays robust (problem with a single PMU in a zone will not defeat functionality)**
**Open architecture to accept alarms, alerts and information from companion technologies and vendors and researchers that tap into data stream**

## RTDMS Visualization

## Display Visualization StructureTiered Approach (Drill-Down from Wide Area to Local displays)

- Develop set of displays that allow the user to monitor the entire Interconnection, Reliability Coordinator regions and local systems.
_**Display Tier 1**_**:**** *****Situational Awareness Dashboard Display (Default) ***– Through simplistic “traffic light” type visual concepts, provides information on the overall system status using a set of predefined metrics, as well as information on the associated geographic region(s), and the time history of these metrics.  Responsible group will approve and configure this display.
_**Display Tier 2**_**:**** *****Interconnection Displays*** – A set of geo-graphic displays showing information on frequency and voltage related information at key PMUs** *****across*** the Interconnection, as well as angle differences across reliability regions. Responsible group will approve and configure this display.
_***Display Tier 3***_***:****** Reliability Coordinator Displays*** – For each Reliability Coordinator region, a set of geo-graphic displays showing information on frequency and voltage related information at PMUs ***within*** the Reliability Coordinator region, as well as angle differences across reliability regions. Responsible group will approve and configure this display.
_**Display Tier 4**_**:**** Local***** Displays*** – A single set of regional displays showing frequency, voltage and angle differences for user selected PMUs and Paths.  User will be able to configure this set of displays.

## 

Display Tier 1: Dashboard Summary Display (Default)
Display Tier 2: Eastern Interconnection Displays 
Display Tier 3: Reliability Coordinator Displays
Display Tier 4: Local Displays (User to configure this set of displays)

_**Display Tier 1**_**: *****Dashboard Summary Display (Default)***
_**Display Tier 2**_**: *****Eastern Interconnection Displays***** **
_***Display Tier 3***_***: Reliability Coordinator Displays***
_***Display Tier 4***_***: Local Displays (User to configure this set of displays)***

**Drill down to a geographic region**
**(EI, RC, Regional)**
**and appropriate metric **
**(Freq, Voltage, Angles, MW, MVAR)**

**Monitor overall system status within dashboard display**

**Configure Regional**
**display using the **
**configuration utility**

- Tiered Visualization Architecture (cont.)

## TIER 1 – 

**Situational Awareness Dashboard**
*(Centrally Configured Display)*

## Sample Dashboard Summary Display

**Monitor status of key EI metrics**

**Indicators above gauges provides information on the location**

**Gauges to quantify worst performing metric (i.e., current value, mean, standard deviation, etc)**

**Partitioned into RC Regions **
**Angle Difference Paths Shown in Geographic Display**

**Visualization Tiers – Dashboard Summary, Interconnection, Reliability Coordinator, Local Area**

## TIER 2 – 

**Interconnection Tier**
*(Centrally Configured Displays)*

## Real-Time Phasor Monitoring Application- Path Dynamics (Angle Difference) Monitoring Display

**	****compare angles across selected interfaces**

**historical tracking and comparison over specified time duration**
**quickly identify interfaces affected by an event**

**Monitor : **
**angles across predefined flowgates or interfaces**
**Alarming:**
**color coded on proximity to alarming thresholds**
**immediately identify areas of stress**

## Real-Time Phasor Monitoring Application- Voltage Monitoring Display

**Monitor : **
**voltage angles and magnitudes**
**color coded**
**quickly identify low or high voltage regions**

**	****voltage angle and magnitude tracking at selected location**

## Real-Time Phasor Monitoring Application- MW/MVAR Flows Monitoring Display

**Monitor : **
**MW/MVAR flows on monitored lines **
**Alarming:**
**color coded on proximity to transfer limits** **as established by offline studies**
**quickly identify heavily loaded lines**

**historical tracking over specified time duration**
**track changing flows on selected line**

**	****MW/MVAR histogram/duration curve over specified time duration**

## TIER 3 – 

**Reliability Coordinator Tiers**
*(Centrally Configured Displays)*

## Real-Time Phasor Monitoring Application- Frequency Monitoring Display

**Monitor :**
**Interconnection**
**Frequency **
**Deviation and the**
**Associated**
**Generation/Load**
**Imbalance**

**local frequency tracking**

**	****frequency **
**	****duration curve or histogram to assess performance**

**	****Frequency rate-of-change measured in mHz/sec.**

## Real-Time Phasor Monitoring Application- MW/MVAR Flows Monitoring Display

**Monitor : **
**MW/MVAR flows on monitored lines **
**Alarming:**
**color coded on proximity to transfer limits** **as established by offline studies**
**quickly identify heavily loaded lines**

**historical tracking over specified time duration**
**track changing flows on selected line**

**	****MW/MVAR histogram/duration curve over specified time duration**

## Real Time Alarming

**Centrally configured alarming parameters at Server**

**Real Time Alarming on *****Threshold *****& *****Rate-of-Change***** Violations:**

## Alarm Summary Reports

**Select *****Alarm Types***** & ****Date/Time****:**

## Reports on Long-Term Trends & Statistics

***Reports on Long-Term Trends & Statistics***

**Select *****Signals*****  & ****Date/Time****:**

**- Create trend plots**
**- Export data into excel or text files**

***Baseline System***** – create trends by time of day, peak load, major line outages, etc.**

## RTDMS Daily Summary Reports

## Daily Summary Reports

**Intended to provide operators, engineers and NASPI teams daily summaries of infrastructure and grid performance**
**Following slides are examples of what is planned for deployment in 2007**
**    **

## Daily Report

## Daily Report (continued)

## Daily Report (continued)

## Daily Report (continued)

## Daily Report (continued)

## Daily Report (continued)

## Visualization in other Applications

## Visualization in other Applications

- This section reserved for input from vendors and researchers on things they are trying to achieve in their applications.

## Linkage to the RTDMS 

- Linkage to the RTDMS

## Linkage to the RTDMS

- The Spring 2007 version of the RTMS will have the first test of accepting information from external applications (FNet in this case).  This section reserved for results of that effort and specification information to replicate this with other vendors’ and researchers’ applications.

## Display Management Process and Guidelines

## Display Modification Guidelines

- Interconnection tier to include:
*Objective* – High level display of the EI power flow between sources and sinks,
- level of stress between regions and critical voltage levels
- Display only* *those PMUs installed at key high voltage transmission facilities (765kV, 500kV) and generation plants.
- Angle differences between PMUs directly/indirectly connected between major source  and sink areas.
- MW/MVAR flows at critical monitored tie-lines at RC boundaries.
- Voltage levels at and between critical sources and sinks
- Exclude PMU signals with poor data quality or availability.

## Display Modification Guidelines (cont.)

- Reliability Coordinator tiers to include:
*Objective –* Provide each RC with adequate information so they have a clear
- understanding of the level of stress within its area of responsibility and between
- adjacent RCs
- Monitor and display information from a sufficient number of PMUs at voltages between 230kV
- and 765kV in order to:
- Provide a clear picture of source-sink power flows between both control areas and adjacent RC regions
- Angle differences along major transmission paths, between control areas and adjacent RC regions directly/indirectly connected by transmission lines.
- MW/MVAR flows across all monitored transmission lines within RC region or tie-lines to neighboring RC regions.
- Voltage levels at critical facilities within each control area and at RC boundaries
- Exclude PMU signals with poor data quality or availability.
- Local tier individually configured by end user on local client application.

## Display Management Process

- TVA to coordinate integration of new PMUs into the SuperPDC.
- CERTS provide assist to TVA in calibrating the new devices through comparisons with State Estimator snapshots and monitor data quality performance for these new devices.
- Reliability Coordinators and Transmission Owner representatives to suggest critical paths for monitoring and threshold limits.
- Develop draft displays incorporating information from new PMUs.
- NASPI OI Team to review and validate selected paths, and threshold limits.
- EPG and TVA to implement new displays at the central RTDMS Server.