Openwind Version 1.9

Introducing Openwind 1.9

This latest version, released in August 2020, includes many new features and improvements including:

Preliminary Induction Model

Openwind Induction Model

This induction model is based on the work of ARM Forsting and is a simple, fast, engineering model of the slow-down in front of a wind farm. It attempts to model the difference in incident wind between that experienced by a met mast versus a wind turbine. At present this is highly configurable and considered experimental functionality.

 

IEC61400-12 (editions 1 and 2) Obstacle and Terrain Assessment

Openwind screen capture of IEC61400-12-1 obstacle and terrain analysis feature

IEC61400-12-1 (editions 1 and 2) – obstacle and terrain analysis tools to allow the easy import, digitisation and enhancement of obstacle and forestry layers.

  • Shape files attributes can be automatically read and converted to Openwind obstacle objects
  • Rasterisation of forestry polygons into obstacle layers
  • Fast plane-fitting
  • Measurement sector suggestion
  • Automatic generation of obstacle and terrain reports

This functionality facilitates simple, quick and easy, repeatable assessments of measurement sectors for performing power curve tests.

 

Shadow Flicker Strategy Creation and Assessment

Import shadow flicker strategies as time-series of turbine availability. Assess shadow flicker shutdown losses in the light a fixed shadow flicker budgets and likely real case shadow flicker scenarios based on time-series met data. This functionality will use up a shadow flicker budget based on the likely shadow flicker and then calculate the loss once the turbines have to switch to worst case shadow flicker driven shutdown periods.

 

Substation Chaining

Openwind Screenshot featuring Substation Chaining

Substation Chaining is designed for large multi-phase projects, this modification to the LCOE optimiser allows users to appropriately share the cost of their HV lines among phases.

 

Directly import Wind Resource Grid (WRG) files and time series data sets from Windnavigator

In Openwind v 1.9 users can access, order and import Wind Resource Grids files and time series data sets directly from UL’s Windnavigator dashboard. In this video you will learn how to access and utilize this new and convenient feature.

 

 

Comprehensive list of Openwind 1.9 Features and Improvements

  • Induction model based on work by Dr. ARM Forsting with tuneable parameters for induction zone combination
  • NORD2000 (unvalidated)
  • Export reports directly to Excel format
  • Improved NRO mode optimisation
  • Raster editing
  • Dark mode support
  • On screen logging
  • Permitted location optimisation without buffering points
  • IEC61400-12 (Editions 1 and 2) obstacle and terrain assessment
    • Define, edit, convert point layers into obstacles
    • Rasterise forestry into grids of obstacles
  • New wake model (unvalidated)
    • Bastankhah (AKA Porte Agel)
  • Improved multi-threading
  • Improved wake removal
  • OpenGL 2D hardware acceleration
  • Shadow flicker curtailment strategy creation
    • Export to report
    • Import from clipboard
  • Substation chaining in LCOE optimisation
  • Run time-series energy captures with partial (curtailed) values of availability
  • Create met mast turbulence tables from background map roughness and wind speed
  • Added options to DAWM EV model
  • Run time-series energy captures with partial (curtailed) values of availability
  • Create met mast turbulence tables from background map roughness and wind speed
  • Added options to DAWM EV model
  • Export to WindPlanner
  • Support for WakeBlaster
  • Wierenga can now be used for the estimation of 3 second gust factors
  • Wierenga can be used to translate between 10 minute wind speeds and max or min speeds at lower time intervals but only up to 140 seconds
  • Input points and turbines as lines or arcs
  • Ability to order and download Wind Resource Grid (WRG) files and time series data sets directly from Windnavigator

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