The MicroGrid Solution at 29 Palms

General Electric & MAGTFTC MCAGCC PWDFebruary 12, 2012

Project Team*● Sumit Bose, PI, GE Global Research ● Marques Russell, Twentynine Palms Engineer-in-Charge● Daniel Kariuki, Gary Morrissett, Chris Spears - Twentynine Palms

DPW Office, Brandon Saunders (JCI), Aaron Ezrilov (Resolute).● Murali Baggu, Chip Cotton, David Doerge, Rayette Fisher, John

Garrity, Sahika Genc, Rick Piel, David Wardwell, Herman Wiegman: GE Global Research

● Bob Bisceglia, Amir Hajimiragha, Walter Jeschke, Marcel Marian, Michael Miller, Matt Proctor, Bobby Sagoo, Brian Wilson: GE Digital Energy Engineering, Projects

● Eliot Assimakopoulos, Shefali Patel, GE Digital Energy, Commercial● Larry Krause, GE Intelligent Platforms

*Alphabetically arranged for multiple people in an organization

MAGTFTC / MCAGCC• Marine Air Ground Task Force Training Command /

Marine Corps Air Ground Combat Center

MAGTFTC / MCAGCC

932SquareMiles

MCBCamp Pendleton

MCBQuantico

MCBCamp Lejeune N.C.

MCLBBarstow

Mission Statements

• MAGTFTC: Manages the MAGTF Training Program (TP) and conducts service-level MAGTF combined arms training in order to enhance the combat readiness of the operating forces and support the Commandant of the Marine Corps’ responsibilities to national security.

• MCAGCC: Provides and manages facilities, service and support to forces and families permanently assigned or participating in training aboard the Combat Center in order to ensure readiness of the MAGTF as well as the welfare of personnel and families.

ESTCP/GE Demonstration

· 2 year, $2 million contract· MCAGCC is leading the Marine Corps and Navy in the

areas of energy efficiency and security· MCAGCC long range plan parallels scope· Most of the infrastructure required for an effective

MicroGrid already exists

Generation Resources at Site

Possible Loads

Warehouses

Developed HMI -Electrical Distribution

Developed HMI – Microgrid Assets

Current Status

0 50 100 150 200 250 300 3500

2000

4000

6000

8000

10000

12000

14000

16000

Time (Hours)

Act

ive

Po

we

r (k

W)

15 Days of Site Data Collected (04/04/12 to 04/19/2012)

PVLoadGridCHP

Key Assets

Electrical Distribution

Critical Loads

Photovoltaic Arrays

HeatRecovery

CoGen1

Chillers

+/-

BESSBatteryEnergyStorage

HTHW

Chilled Water Loop

AA-Sub

Bulk Grid

Boilers

PV

JoshuaHeights N-Sub

CH

EE-Sub

FairwayHeights HQ

CHP

Phase 1: Technical Highlights

Advanced Energy Management for Distribution-based Resources:

Completed all the following new features of microgrid:

Optimal Dispatch of Distributed Energy Resources (DER) both during

grid-connected and islanded conditions – development complete

Dispatch capability of electrical and thermal assets - completed

Built-in hooks of future enhancements like new CHP, new PV and

energy storage (more things to optimize) - completed

Interface of GE equipment with Legacy Systems from JCI, Rockwell etc.

Testing in mixed type of communication media: wireless, Ethernet

Testing Mixed type of protocols: Modbus, Bacnet, RSLinx

Mixed mode of operations: Advisory, Automated, Manual and Legacy

Initial Building Energy Management interface using Cimplicity completed

Microgrid Optimization ModelSetpoints of Storage

Devices

Load

System Topology, Fuel Cost, Start-up/Shut-down Costs, Isoch Margin, ...

S E T T I N G S

Setpoints of Dispatchables

Device Status

Storage State of Charge

Renewables Electricity Price

F O R E C A S T S

Load

Post

-pro

cces

ing

Uni

t

Pre-

proc

cesi

ng

Uni

t

Introduction – Optimal Dispatch

• Front Panel HMI

• Annunciator

• Setup Program

• User Interface

• Viewpoint Monitoring

U90+ and Peripherals

Communications & Cyber Security

Proficy CIMPLICITY

Point Management

MicrosoftSQLServerData Storage

OPC Client

FactoryTalk®EnervistaIntegrator

Industrial GatewayServer

Modbus(Slave)

OPC Client OPC Client

U90+CCS PLC JCI NAE

ODBC

BACnetModbus (Master)Rockwell

Proprietary

COM

Analytics(As Needed)

CMCS(Application Server)

SMART PANELS

BACnet

Phase II – Integrated Volt/Var Control

Dynamic Programming (DP) based

Volt/VAR Control

● In each iteration, the control signals to cap-banks (on or off) is generated.

● Runs power flow and calculates the cost functions for all the possibilities

● Calculates the incremental benefit with the best solution and performs an iteration if the benefits is less than a preset minimum value.

● The least cost function solution is the best solution and used to set the optimal IVVC schedule of the cap-banks

● Typically the cost function is a combination or reduced grid import of VARs, reduced number of voltage violations and reduced losses in the cables

Baseline case powers (Jul 15 2010)

Baseline Q consumed from the grid 2000 kVar

Baseline case voltages (Jul 15 2010)

Number of min Volt violations: 87 Number of max Volt violations: 0

Number of min Volt violations: 1005 Number of max Volt violations: 0

Baseline case Voltages (Aug 15 2010)

DP results for Jul 15 2010

Peak Q consumed from grid reduced to 500 kVar

Results of DP on Voltages (Jul 15 2010)

Number of min Volt violations: 0Number of max Volt violations: 0

Results of DP on capacitor operation (Jul 15 2010)

DP run-time 68 Secs, 2 iterations

DP results for Aug 15 2010

Cap banks supplying half of Q during CHP loss

Number of min Volt violations: 162Number of max Volt violations: 0

Results of DP on Voltages (Aug 15 2010)

DP run-time 69 seconds, 2 iterations

Results of DP on capacitor operation (Aug 15 2010)

Next Steps: Finalize Implementation Plan

Phase III – Battery Energy Storage System

● 1.5 year, $2 million contract● DurathonTM sodium metal halide technology

High temperature capable (up to 50*C ambient w/o derating) High Cycle life (2400 cycles to -8% energy delivery) Modular and Scalable architecture, grow with the load

● Proposal: a Durathon equipped BESS 1000 kVA apparent power rating 576 kWh energy storage Option for a total of 1.2MWh energy storage Volt/VAR, phase imbalance, and real power injection capable Grid-Tie

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Technical ObjectivesPrimary Technical Objectives:● Increase Power Factor of Co-Generation facility● Increase overall Solar Power Plant capacity factor, specifically during

islanded operation● Provide peak-shaving during high demand periods and reduce peak

demand charges

Secondary Technical Objectives:● Assess sodium-metal-halide energy storage technology in a grid-tied utility

application.● Develop and exercise algorithm's for

Voltage support Frequency regulation Low voltage ride through (LVRT) Uninterruptable Power Supply (UPS) operation.

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Thank You!