WAT 4.3 release notes


Version 4.3

Build 4.3.0.154 – Release B

Bug fixes

  • Measurement sector for IEC 61400-12-1 not displayed when using Edition 2 of the standard
  • Bad interpolation of observed TI data sometimes caused negative standard deviations
  • Improved import of WAsP 12 workspace files

 

Build 4.3.0.152 – Release A

New features

  • Automatic sector-management rules
  • Highlight sites with non-IEC-compliant flow conditions in the main plot
  • Assessment of site-specific extreme ambient turbulence intensity
  • Import of WAsP 12 workspace files
  • Air density correction and wake modelling as in WAsP 12

Bug fixes

  • Float-to-integer conversion in WAT 4.2 was accidentally set to 'round up' instead of 'round to nearest'.
  • Previous versions confused upper limit with mean of wind-speed bins during turbulence calculations and reports.
  • Problem reading power curve files in POW format
  • Problem reading user-specified TI statistics from file
  • Problem with terrain assessment for IEC 61400-12-1 performance measurements
  • IEC 61400-12-1 measurement sector was not stored in project file



Version 4.2

Build 4.2.0.144 Release A

  • Support for IEC 61400-1 Ed.4 (draft)
  • Support for IEC 61400-12-1 Ed.2 (draft)
  • Approximate de-trend correction for observed turbulence intensity
  • Input for far-offshore sites independent of WAsP Engineering
  • Load Excel files on computers without Excel installation
  • Graphical improvements of result tables
  • New tables for wind-farm overview of effective TI and maximum TI
  • New table of inter-turbine distance
  • Better guide for project options

 

Version 4.1


Build 4.1.0.138 - Release A


New features

  • more project options for effective turbulence calculation
  • default project options depending on IEC 61400-1 edition

Bug fixes

  • large-farm turbulence enhancement in wake sectors ignored as in IEC 61400-1/A1 Ed. 3
  • recalculation of effective turbulence after modification of project options
  • corrected sometimes wrong average ambient turbulence results
  • corrected turbulence correction preferences - primary and secondary method were mixed up in the WAT 4.0 option dialogue

Version 4.0

Build 4.0.0.137 - Release A

New features

  • Simplified user interface
  • AEP uncertainty estimates
  • AEP corrections for turbine availability and transmission power loss
  • Import of WAsP projects for AEP calculations
  • Power-curve correction for local air density
  • Turbulence statistics by observed time series
  • Improved export and import of turbulence statistics
  • Improved indication of neighbour turbines in sector-management dialogue
  • Transparent display of IEC 61400-12-1 performance measurement zones
  • Improved accuracy when reading IEC 61400-12-1 measurement sectors from WAT project file
  • Support for IEC 61400-12-2 terrain and obstacle assessments
  • IEC 61400-12-x assessment with no WAsP or WEng input
  • Editor for obstacle geometry

Bug fixes

  • Corrected IEC 61400-1 terrain complexity plot
  • Corrected IEC 61400-12-1 terrain assessment
  • Corrected interpolation of WAsP/WEng site conditions 

Version 3.0

Build 3.0.0.128

New features

  • Wind-sector management by alternative turbine modes of operation as a supplement to full shut-down
  • Import and export of sector-management rules
  • Turbulence corrections by reference mast data
  • Support for new IEC 61400-1/A1 sector-based complex terrain assessment
  • AEP estimates under grid limitations
  • More flexible models for turbine class S turbines
  • Temporary blocking of AEP calculations (useful for big projects)
  • Wind-speed dependent WEng turbulence intensity (useful for offshore projects)
  • Improved object hierarchy editing
  • Model options stored with project
  • Legend for main plot
  • List of recent projects
  • Faster calculation
  • Better error messages

Bug fixes

  • Attempt to write to c:\temp directory
  • Yet another *.wtg file read error
  • Wat project read error related to unicode strings
  • Various errors in site-calibration terrain assessment, including IEC 61400-12-1 criteria badly mistaken for inclination angles [°] but now corrected to terrain slope [%].
http://www.wasp.dk/download/wasp12-suite-installer/wat_4_1_0_138_releasenotes
25 FEBRUARY 2018