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The MicroGrid Solution at 29 Palms. General Electric & MAGTFTC MCAGCC PWD February 12, 2012. Project Team*. Sumit Bose , PI, GE Global Research Marques Russell , Twentynine Palms Engineer-in-Charge
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The MicroGrid Solution at 29 Palms General Electric & MAGTFTC MCAGCC PWD February 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 MCLB Barstow
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
Possible Loads Warehouses
Key Assets Bulk Grid Electrical Distribution AA-Sub EE-Sub CHP Joshua Heights N-Sub Fairway Heights HQ Chilled Water Loop Chillers CH Boilers BESS CoGen1 Battery Energy Storage Critical Loads Heat Recovery +/- HTHW PV Photovoltaic Arrays
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
U90+ and Peripherals • Front Panel HMI • Annunciator • Setup Program • User Interface • Viewpoint Monitoring
Communications & Cyber Security Analytics (As Needed) Microsoft SQL Server Proficy CIMPLICITY COM Data Storage ODBC Point Management OPC Client Modbus (Slave) OPC Client OPC Client CMCS (Application Server) FactoryTalk® Enervista Integrator Industrial Gateway Server BACnet Modbus (Master) Rockwell Proprietary BACnet CCS PLC U90+ JCI NAE SMART PANELS
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
Baseline case Voltages (Aug 15 2010) Number of min Volt violations: 1005 Number of max Volt violations: 0
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: 0 Number 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
Results of DP on Voltages (Aug 15 2010) Number of min Volt violations: 162 Number of max Volt violations: 0
Results of DP on capacitor operation (Aug 15 2010) DP run-time 69 seconds, 2 iterations
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
Technical Objectives Primary 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.