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 [%].