Hybrid and Off grid Systems Princeton Power Systems Inverter Technology Ken McCauley and Alan Cohen Princeton Power Systems

Transcription

1 Hybrid and Off grid Systems Princeton Power Systems Inverter Technology Ken McCauley and Alan Cohen Princeton Power Systems

2 Core Technologies High quality, Robust Power Electronics: Grid Tied Inverter Demand Response Inverter Battery Integrated GTI GTIB 30 GTIB 100 GTIB 500 Bi directional 2 terminal AC DC converters for grid tied, off grid battery, solar, microgrids Built in grids support features DRI 10 DRI terminal DC/AC; Grid tied/off grid Converters; First UL 1741 certified multi DC on/off grid converter(s); E Quad Power Flow Technology Bigi 250 Multi DC input Grid tied Converter, commonly 3 terminal Energy Storage Systems Site Controller Electric Vehicle Charging Stations

3 OFF GRID AC Coupled for high Efficiency Wide compatibility with AC generators (diesel, gas, etc.) Optional PV or Wind inputs Seamless electric grid interface DRI 10 Batteries PV Loads PRE PROGRAMMED APPLICATIONS Peak Shaving Backup Power Time shifting Frequency Regulation GRID SUPPORT FUNCTIONS Area Frequency Regulation Arbitrage Automatic peak shaving VAR Support

4 E QUAD POWER FLOW CONTROL TECHNOLOGY DC AC Grid DC AC Load Dynamic control of four bi directional loads/sources through a central highfrequency link

5 WORLD LEADING MICROGRID PROJECTS Alcatraz Island PV Microgrid Scripps Ranch Emergency Command Center US Army Ft. Bliss Microgrid BMW EV Fast Charge & Peak Shaver Inverters and Optimized Energy Management Solutions for world leading projects and emerging applications.

6 ALCATRAZ ISLAND MICROGRID 400 kw Solar 400 kw / 2 MWh Battery 2 x 350kW Diesel Gen PPS Site Controller Eight (8) PPS Inverters Solar array on the roof 800kW of PPS GTIBs Informational Kiosk

7 MICROGRID CONCEPT Island load Power Converter 24/7 power reliability Disconnect from utility grid Flexible, renewable generation sources Optimal fuel efficiency Power Converter Natural Gas, Fuel Cell (optional)

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9 Inverter Configuration and Operation PPS GTIB-100 (100kW Grid-tied Inverter) (4) GTIB s for PV and (4) GTIB s for Battery Off-grid and On-grid capability Bi-directional operation Inverters are AC coupled, conditioning power from the PV array and batteries, to create an AC microgrid UL Listed 1741 Communication capabilities allow for autonomous functionality.

10 Energy Storage Design Total Island Load varies between 50 and 80kW 1900kWh s/lead Acid Batteries The batteries absorb excess PV when it exceeds load requirement, and they deliver whatever load the PV does not cover at all other times. The chart shows the batteries power absorption diminishing to zero as they become fully charged. The generator is automatically turned on and run at maximum efficiency to recharge the battery bank, then turns off for 3 4 days at a time.

11 January 2013 February 2013 The following contains data for the PV (blue), Generator (red), and Battery (green) systems Reduced diesel fuel consumption 80% The following contains data for the PV (green), Generator (red), and Battery (blue) systems

12 Scripps Ranch Emergency Command Center

13 Scripps Ranch System Design

14 Inverter Configuration and Operation PPS GTIB-100 (100kW Grid-tied Inverter) (1) GTIB for PV and (1) GTIB for Battery Off-grid and On-grid capability Bi-directional operation Remote grid contactor added to allow the center to disconnect from the grid as well as have it run as an islanded microgrid. Contactor closes when power returns and building returns to normal operation. UL Listed 1741 Communication capabilities allow for autonomous functionality.

15 Contacts Darren Hammell Marshall Cohen Executive Vice President, COO President & CEO (609) ext. 103 (609) ext. 101 Princeton Power Systems, Inc Princeton Pike Lawrence, NJ