Advanced Distribution Management – IT & OT

Convergence

Thomas Bialek, Ph.D., P.E.

Chief Engineer, Smart Grid

San Diego Gas & Electric Co.

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Yesterday Future State

Manually Design Switching plans to

resolve un-planned outages using

manually maintained operating

maps

Select Switching Plan from

automatically calculated scenarios.

Uses Real Time Information from

SCADA and CBM monitors

Outage Management System (OMS) Distribution Management System (DMS)

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Smart Utility Vision • Transmission

• Implement project to improve speed of response to grid issues

• Better utilization of data to proactively avoid issues

• More efficient utilization of resources

• Distribution

• Create a self-healing and resilient grid via real-time information

• Expand communications and remote control of devices

• Provision of balancing, storage, reliability and integration services to customers

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Utilization of Distribution Automation

• Distribution Planning utilizes SCADA to plan and design the system

• Distribution Operations can remotely operate breakers and switches

• Remote control of devices to automate functions

• Data used to investigate customer issues

• Diagnose and solve system problems

• Expedite electric load curtailment activities

SUMMARY OF CURRENT 12KV SUBSTATION SCADA ALLOCATION (As of 1/25/2011) Note: Figures represent 12kV distribution only. Additional customers are served on 4kV distribution.

SCADA NON-SCADA TOTAL

SUBSTATIONS 79 27 106

CIRCUITS (with SCADA @ SUB) 673 100 773

CUSTOMERS (with SCADA @ SUB) 1,111,915 150,763 1,262,678

FORECASTED LOAD (MW) 4573 526 5099

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AMI Data Mining

Smart Meters – Data Volume • Previously, over

350 million data points (consumption reads) were taken annually from manually read analog meters and a small number of remotely read digital meters.

• Now we remotely read nearly 15 billion electricity usage data points annually from Smart Meters.

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Condition Based Maintenance (CBM) Project

Description:

CBM will allow SDG&E to extend the useful life and make greater utilization of

transmission and distribution substation assets by using technology to monitor the

assets’ health and performance.

Status: 98 Distribution substations and 17 transmission substation year end 2015

Phasor Measurement Units

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• Range of 0.2 – 2 GB/day/PMU

• Range of 73 – 730 GB/year/PMU

Synchrophasors • Time-synchronized high speed measurements taken throughout the grid

• Improve situational awareness

• Multiple applications including microgrids

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Image: Schweitzer Engineering Labs

SDG&E Weather Network (144 Stations)

Slide 11

29 Cameras

Borrego Springs, Creelman, Loveland, Rincon,

Rough-Acres, Warner Springs & other fire-prone areas

Monitor the weather

Impacts (vegetation, structures)

Flying Debris

Fire Preparation and Safety Monitoring Santa Ana’s

Wireless Faulted Circuit Indicators

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Purpose

• Installation of wireless fault indicators (WFIs) to expedite location of distribution faults, using On-Ramp Wireless communication network.

Scope • Install roughly 3,600 WFIs at 1200 locations • Integrate with new OMS/DMS

Status • Moving to underground deployment

SDG&E Borrego Springs Microgrid Project Project

Description:

In cooperation with the US Department of Energy and the California Energy

Commission, SDG&E and 10 public and private sector partners will develop a

microgrid project - a small version of its electric grid which takes advantage of local

distributed energy resources and state-of-the-art controls to enhance grid

operations – to achieve a >15% reduction in feeder peak load and improve system

reliability.

Current

Status:

•Site Selection complete – Borrego Springs

•Finalizing system requirements and high level design

•Developing customer communication plan

•Collaborating with environmental agencies to satisfy permitting requirements

Energy

Storage

Micro turbine

Rooftop PV Solar

Utility-scale Energy Storage

Distributed Generation

Home Energy System

Ground PV Solar Array

PHEVs

Switches

& Power

Electronic

s

National Energy Technology Laboratory

Distributed Energy Resources

Utility-scale Energy Storage

Rooftop PV Solar

Micro-turbines

Building Energy Storage

Community Energy Storage

Distributed Generation

Home Energy System

PHEVs

Ground PV Solar Array

Grid Resources

Capacitor Banks

Voltage Regulators

Automated Switches

Power Electronics

Communications

Information

Electricity Pricing

DER status

Demand Response Programs

Network status

Community Objectives

Load and Resource Profiles

Outage Management System (OMS) Distribution Management System (DMS)

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• Aggregates display of

overall Summary of

outages in progress

and historical trend of

outage and restoration

activity for the

distribution operator.

• Real Time as-switched view of distribution

system.

• Integrated with AMI to more quickly detect

outages. Average of 10 minutes before first

customer call and 25 minutes before customer

calls would predict same outage location.

• Integrated with mobile dispatch system to

dispatch work and track crew status.

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Summary • Smart Grid is an evolution not a revolution

– Pace of technology adoption has increased

• Distribution automation is a foundational technology

• With AMI fully deployed the next task is mining the data

• Foundational IT upgrades essential to future SG technologies

• Modern communication system is essential for future SG deployment

• It’s not your parent’s distribution system – Data inundating the control center

– Complex integrated system

Questions ?

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Thank you.

Thomas Bialek

Chief Engineer, Smart Grid

tbialek@semprautilities.com

www.sdge.com/smartgrid/