Five main work packages will be implemented in this project.
WP1: Develop Grid Model
The existing grid models will be extended to add the wind farms to evaluate various operational events. This will allow the harmonic emissions for each windfarm to be estimated and reported upon.
WP2: Harmonic Impedance Scans
The main busbars will be monitored using impedance frequency scans, and the findings will inform simulations run on grid assets to identify both short- and long-term issues and concerns. This will allow a number of filters to be developed and their efficacy evaluated.
WP3: Developing Harmonic Limits
Frequency scans will be carried out at the coupling for each wind farm, and the results compiled into a technical report.
WP4: Detailed Harmonic Filter Designs
The outcomes of WP2 and WP3 will be used to inform the final technical specifications for the harmonic filters for each location. The results of this design will be compiled into a report.
WP5: Performance Review
Over an extended period, the performance of the harmonic filters will be monitored and compared to the simulation results. Any discrepancies will be noted and investigated to identify the issues that may be causing it. If any major discrepancies are found, the filters' paramaters may be redesigned.
Benefits
The delivery of the above objectives, within budget and within agreed timelines, as is reasonable depending on the knowledge at this stage of the development phase.
The project will be managed within SPEN applying due diligence and best practices where appropiate.
The staged outcomes will include reports and specifications available for other licencees.
