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report KD 727 about the 4-bladed VIRYA-12 availabel
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Topic: report KD 727 about the 4-bladed VIRYA-12 availabel (Read 912 times)
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Adriaan Kragten
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report KD 727 about the 4-bladed VIRYA-12 availabel
«
on:
October 16, 2021, 11:07:58 AM »
Report KD 727 can be copied for free from my website:
www.kdwindturbines.nl
at the menu KD-reports. The title of this report is: "Calculations executed for the 4-bladed rotor of the VIRYA-12 windmill (lambda design = 5) with the pendulum safety system with a torsion spring connected to a PM-generator made from an asynchronous motor frame size 355".
This rotor has a very low noise level because it has wooden blades and a rather low design tip speed ratio of 5. The visual acceptance might be large because it has four blades, just as a traditional Dutch windmill.
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Adriaan Kragten
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Re: report KD 727 about the 4-bladed VIRYA-12 availabel
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Reply #1 on:
December 24, 2022, 06:18:55 AM »
A new chapter 9 has been added to report KD 727 about the VIRYA-12. The title of this chapter is: "Ideas about a real 60-pole PM-generator". The advantage of a 60-pole generator is that the frequency is much higher than that of the 6-pole or 12-pole generator as described in chapter 8. This enormous generator is based on the largest standard asynchronous motor frame size IEC 355L.
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Adriaan Kragten
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Re: report KD 727 about the 4-bladed VIRYA-12 availabel
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Reply #2 on:
December 31, 2022, 05:37:41 AM »
A new chapter 10 has been added to report KD 727 about the VIRYA-12. The title of this new chapter is: "Ideas about other PM-generators with a high pole number". The pole numbers described are 64, 68, 70, 74 and 76 for a stator with 72 slots.
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Adriaan Kragten
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Re: report KD 727 about the 4-bladed VIRYA-12 availabel
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Reply #3 on:
September 18, 2023, 06:29:08 AM »
A new chapter 11 has been added to report KD 727 about the 4-bladed VIRYA-12. The title of this chapter is: "Use of a PM-generator of Hefei Top Grand type PMG900-I-30KW-100R". This generator is also used in the 3-bladed VIRYA-14 as described in report KD 732.
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report KD 727 about the 4-bladed VIRYA-12 availabel