Small Scale Island Microgrid Case Studies

Transcription

1 Small Scale Island Microgrid Case Studies Over Yonder Cay & Gasa Island Gian Schelling Business Dev Manager EMEA 20 March, 2015

2 L line 1 0 Northern Power Business Lines Product Sales & Service Technology Licensing Technology Development NPS 100kW NPS 2 MW & 3 MW turbine platform NPS 60kW Licensing and Royalty Model Successfully deployed in China and Brazil to date High-margin Engineering project work g Grid v dc V a V b V c L line L line R line R line R line abc i a-line i b-line i c-line i abc v dc i a-gen i b-gen i c-gen 0 0 i* i v* v* 0 ab0 ab0 dq0 - i* d i * i 0 Cur. 0 d i* Cur. i * + v 0-0 dc i d q i* 0 + Reg. Reg. + q - i* dq0 0 i* 0 Expansion of IP portfolio R dbl abc rpm cmd i abc + - R a R b R c rpm msrd L a L b L c Speed Reg. E a E b E c T TCU id=f(t * ) Control Mode Gen Converter and Controls Systems Distributed Turbine Sales ~3x 2012 to 2014 BRIC+ strategy Growth US, EU and Asia

3 Wind and Microgrid IP Development 100 kw POC (1) 100 kw CWT NW 100A (3) Wind PACT (25) 1.5 MW 100 kw DWT (1) NPS 100B (320+) 2.x MW Prototype (10) 2.x MW Production (30+) NPS 100C (First Article) 3.x MW Prototype (0) kva micro grid simulators (8) 2.2 MVA POC wind converter 550 kva Ultra-Cap Line interactive UPS 900 kva DG Interface 1800 kva Mobile DG interface 2.5 MVA HS-VFD (2) 1.2 MVA HS-VFD (2) 900 kva VSG (16)

4 NPS Disruptive Wind Technology Current Turbine Landscape Gearbox based Most expensive failure = Gearbox Second most expensive maintenance item, next to pitch control systems Current gearless turbines No proven small wind offerings Utility options sell at a premium (Enercon / Siemens) Generates 4-5% more power The Northern Power Difference: Gearless for the small wind market Licensing for high-growth utility-scale regions Provider of gearless utility scale offerings into niche markets * Based upon utility-class turbine requirements.

5 Appropriate for Remote Applications Easy Transport Standard Shipping Containers No Special Permits Needed Operation in Harsh Climates Hydrophobic Blade Coating Flexible Output Control Full Power Converter Real Power Limiting Reactive Power Control Function of Voltage Function of Frequency

6 Northern Power Global Footprint Markets in Island Nations, Latin America, South / Central / East Asia, and Africa characterized by: High power costs Weak grid infrastructure Desire for more sustainability and independence Distributed generation should be part of the solution Over 320 NPS Systems Installed Worldwide Strong installed base in Western countries Poised to take Distributed Wind to Emerging Markets

7 Two Islands Continuity of Design OYC Gasado

8 Over Yonder Cay, Bahamas

9 Major Equipment: Over Yonder Cay 3 x 250 kw Cummins Diesel Engines 3 x NPS 100kW Wind Turbines Variable Speed, Stall Control Solar Photovoltaics 240 kw DC connected to battery 142 kw AC connected Battery Storage System 6 MWhr VRLA (two days of typical load) 2 x 300 kva Bi-directional Inverters DC side fed by batteries and solar Load Maximum 389 kw Average 159 kw Minimum 50 kw Dispatchable 50 kw RO desalination system

10 Generation Schematic Arrangement (Screen Shot from Engineering Interface)

11 Caribbean Conditions: Lightning & Hurricanes Irene took blades from 6 15kW turbines Hurricane Tracks w/in 30 mi, 1850 to 2013 Hurricane Irene August 2011 Irene stopped NPS turbines for a few hours

12 Turbine & Grid Operation During Irene Peak wind at turbine 112 mph Voltage at turbine good through storm Wind Speed (mph) Turbine Power (kw) Grid Voltage (Vrms L-N) Turbines shutdown Turbines enabled /24/11 0:00 8/24/11 12:00 8/25/11 0:00 8/25/11 12:00 8/26/11 0:00

13 Gasa Island, South Korea (Gasa-do)

14 Major Equipment - Resources 3 x 100 kw Diesel Engines 1 x 200 kw to be installed 4 x NPS 100kW Wind Turbines Variable Speed, Stall Control Solar Photovoltaics 20 kw DC connected to battery 63kW & 81kW AC connected Battery Storage System 3 MWhr VRLA (Hyosung) 2 x 250 kva Bi-directional Inverters DC side fed by batteries and solar Load 160 Households Water Treatment Plant Stone Quarry

15 Island Schematic Arrangement Used with permission by KEPCO and KEPRI

16 Typhoon Tracks: Gasa Island & Region

17 Lessons Learned and Applied Extreme Wind & Lightning Readiness Appropriate Design Reactive Functionality Over-preparation is key for remote islands