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Assessing the requirements for power performance testing at the national small wind turbine centre test site

Malla, Avishek (2010) Assessing the requirements for power performance testing at the national small wind turbine centre test site. Masters by Coursework thesis, Murdoch University.

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Abstract

This report aims to recommend National Small Wind Turbine Centre (NSWTC), the preliminary requirements to conduct the power performance test of Small Wind Turbines in accordance to the IEC61400-12-1 standard. It also investigates the availability of wind resource at the test site, which will assist to manage testing schedule by developing wind predicting models using WAsP software. The objectives of the project are-

1st objective –Assessing the requirements for power performance testing
• Checking test site compatibility with the IEC61400-12-1 standard
• Recommending brands of monitoring instruments by using the IEC61400-12-1 standard and IEA proposed selection criteria
• Recommending appropriate designing for positioning of monitoring instruments by using the IEC61400-12-1 standard as a tool

2nd objective – Assessing the test site limitations to identify factors that will assist to manage the power performance test schedule at the test site such as-

• Types of turbines that can be tested, which meet the criteria set by the IEC61400-12-1 and the BWEA standard
• Suitable times of the year for testing to satisfy the criteria set by IEC61400-12-1 and the BWEA standard
• Overall length of time required to complete the test in accordance to the IEC61400-12-1 and the BWEA standard

The report concludes that –

• Site calibration at the NSWTC test site is required in order to comply with the IEC61400-12-1 standards.

• Some of the monitoring instruments have to be repurchased to test in accordance to the IEC61400-12-1 standard. For example- NSWTC should reconsider purchasing a cup anemometer with a class type better than 1.7A, to comply with IEC61400-12-1.
• The mountings of monitoring instruments can be arranged without major modification to test up to a 5 meter rotor diameter turbine. Beyond this, special arrangements have to be made such as laying out a new concrete foundation for a meteorological mast.
• The WAsP prediction results show, power performance tests can only be carried out on a limited range of wind turbines because the required wind bins are highly unlikely to be complete for turbines falling outside the range. Further, the predicted wind bins for individual months of the year should be considered for approximating a time period of the test, selecting a suitable month to begin the test and also for preparing test schedules of different turbines over a year.

In the absence of real data at the test site, it is recommended that NSWTC should initially consider the predicted results when selecting turbines for testing. Future decisions on turbine selection should be based on the meteorological data collected at the site over at least a year in conjunction with the WAsP model.

Publication Type: Thesis (Masters by Coursework)
Murdoch Affiliation: School of Engineering and Energy
Supervisor: Whale, Jonathan
URI: http://researchrepository.murdoch.edu.au/id/eprint/4055
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