10 MW Wind RD Park with a 1 MW storage system in Canadian climate - (PPT)

摘要

The Wind Energy Institute of Canada (Institute) owns and operates a 10 MW Wind R&D Park, which includes a 1 MW/2 MWh storage system to be used for innovation in grid integration. Logic controls have been added so the storage system can be used in various use-cases (time-shifting, demand/energy reduction, and diesel displacement). Time-shifting was used for the break-in period to allow the operator to understand the capabilities and develop the necessary logic controls. Demand/energy reduction was implemented to provide power to the turbines to run auxiliary loads during low wind periods. Extended low wind periods caused the battery to fail to meet all the energy needs of the turbines, therefore demand was not reduced and the electricity bill was only reduced by $800. This use-case will be improved by incorporating the wind forecast to prepare and adjust the battery output for extended low wind periods. In January 2015 the Institute, in partnership with the local utility, discharged the storage during periods of high load and low wind when the undersea cable reached its import limit. During these periods, the utility uses expensive diesel generators to off-load the cable. Therefore discharging the Institute's storage system provided on-island generation when it was needed most. Six discharges were performed over the month with 10.6 MWhs of high value electricity entering the grid. The Institute is currently testing frequency regulation and looks forward to using its utility size lab for the renewable energy industry, battery producers, academia, utilities, system operators and other partners.