Germany/TiVA - Revision history

Alex Shure: Replaced content with "=Content moved to [http://wiki.opensourceecology.de/wiki/TiVA Open Source Ecology Germany].= ==Introduction== Part of the modular wind turbine syste..."

2012-12-04T11:06:48Z

Replaced content with "=Content moved to [http://wiki.opensourceecology.de/wiki/TiVA Open Source Ecology Germany].= ==Introduction== Part of the modular wind turbine syste..."

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Alex Shure: /* TiVA design outlines */

2012-05-13T15:30:16Z

TiVA design outlines

← Older revision		Revision as of 15:30, 13 May 2012
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	==TiVA design outlines==		==TiVA design outlines==
	[[File:20120513LXM08559_LX-M.de_TiVA_CAD-003.jpg\|~~400px~~\|thumb\|right\|We encourage the use of CAE and work with 2D/3D CAD.]]		[[File:20120513LXM08559_LX-M.de_TiVA_CAD-003.jpg\|512px\|thumb\|right\|We encourage the use of CAE and work with 2D/3D CAD.]]
	<50cm long parts can be cut out at almost every small CNC milling machine.		<50cm long parts can be cut out at almost every small CNC milling machine.

Alex Shure: /* TiVA design outlines */

2012-05-13T15:27:49Z

TiVA design outlines

← Older revision		Revision as of 15:27, 13 May 2012
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	==TiVA design outlines==		==TiVA design outlines==
			[[File:20120513LXM08559_LX-M.de_TiVA_CAD-003.jpg\|400px\|thumb\|right\|We encourage the use of CAE and work with 2D/3D CAD.]]
			<50cm long parts can be cut out at almost every small CNC milling machine.
	<50cm long parts can be cut out at almost every small CNC machine.

	48cm wings can be made out of:		48cm wings can be made out of:

Alex Shure: /* Main Controller: Wilssen */

2012-05-12T11:57:19Z

Main Controller: Wilssen

← Older revision		Revision as of 11:57, 12 May 2012
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	The '''''Wi'''reless'' / '''''Wi'''nd '''L'''ogging '''S'''ystem'' for '''''S'''ourcing '''EN'''ergy'' - Controller is monitoring all parameters.		The '''''Wi'''reless'' / '''''Wi'''nd '''L'''ogging '''S'''ystem'' for '''''S'''ourcing '''EN'''ergy'' - Controller is monitoring all parameters.
	''Wilssen'' is the brain of [[TiVA]] and checks all the voltages at any time the wind turbine is generating power.		''Wilssen'' is the brain of [[TiVA]] and checks all the voltages at any time the wind turbine is generating power.

			Current sensing:
			*Passive on-board shunt resistor (only for low currents) via OpAmp -> 10bit< ADC
			*ACS712 integrated hall sensor with drift compensation with 1.2 mOhms(5A, 20A, 50A versions available) -> 10bit< ADC

	What micro controller platform should we choose for ''Wilssen''?		What micro controller platform should we choose for ''Wilssen''?
			*AVR: Atmel ATmega328 (AU, PU) (pico power series) (8bit)
			*MSP430: Value line, e.g. MSP430G2231IPN14 (16bit)

	* one MSP430G2231IPN14 16bit micro controller could work for ''ages'', at as low as 2V, it may consume 1 mW = 1/1000 W. Typical no-load best-case values from the MSP430 datasheet:		One MSP430G2231IPN14 16bit micro controller could work for ''ages'', at as low as 2V, it may consume 1 mW = 1/1000 W. Typical no-load best-case values from the MSP430 datasheet:
	<blockquote>		<blockquote>
	0.1 µA RAM retention <br />		0.1 µA RAM retention <br />
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	V_gen = variable, depending on wind input and switching and system voltage		V_gen = variable, depending on wind input and switching and system voltage

			#monitor V_out. if V_sys less than Vout, then
	#~~watchdog~~ V_out. if V_sys less than Vout, then
	#serialize the windings,		#serialize the windings,
	##still to little voltage? -> if generator-coil-form-1 and many points are broken out of the coil, then serialize them in a pattern to gain more voltage		##still to little voltage? -> if generator-coil-form-1 and many points are broken out of the coil, then serialize them in a pattern to gain more voltage

Nikolayhg at 05:37, 12 May 2012

2012-05-12T05:37:14Z

← Older revision		Revision as of 05:37, 12 May 2012
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	==Appendix==		==Appendix==
	This wiki entry evolved from a pad at apollo.open-resource.org with [[chrono]] & [[Alex]]. We try to keep Apollo's wiki and this OSE wiki entry synchronized, however, there might be variations or recent additions on either platform.		This wiki entry evolved from a pad at apollo.open-resource.org with [[chrono]] & [[Alex]]. We try to keep Apollo's wiki and this OSE wiki entry synchronized, however, there might be variations or recent additions on either platform.

			[[Category: Wind energy]]

	<references />		<references />

Alex Shure: added conclusions from NACA0018 testing, corrected spelling mistakes

2012-05-11T13:19:51Z

added conclusions from NACA0018 testing, corrected spelling mistakes

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Alex Shure: /* Mechanics */

2012-04-12T12:45:16Z

Mechanics

← Older revision		Revision as of 12:45, 12 April 2012
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	* usable bandwidth of wind speed is higher		* usable bandwidth of wind speed is higher

	===~~Darrieus Wing Fabrication~~===		=== NACA0018 profiled straight wing fabrication process ===
	* Make a wing out of two ~~almost~~ symmetrical pieces.
			One idea is to make a wing out of two symmetrical pieces. One half of the profile could be milled out of wooden sheet material or planed out of a pre-cut board by hand. Half of a profile can be hold down and clamped because one side will still be flat. The two halves are then glued together.

			The pictures at the right show a simple profile made out of thin boards. They are cut out of a sheet with a table saw and then planed by hand.

	==Power estimation and electronics==		==Power estimation and electronics==

Alex Shure: Undo revision 59414 by Alex Shure (talk)

2012-04-12T12:44:50Z

Undo revision 59414 by Alex Shure (talk)

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Alex Shure at 20:51, 11 April 2012

2012-04-11T20:51:28Z

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Alex Shure: /* Mechanics */

2012-04-10T22:40:10Z

Mechanics

← Older revision		Revision as of 22:40, 10 April 2012
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	[[File:20120410LXM213251_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|A board of spruce ready to be worked on with a planer.]]		[[File:20120410LXM213251_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|A board of spruce ready to be worked on with a planer.]]
	[[~~File:~~File:20120410LXM213259_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|After the first few steps of planing the edges.]]		[[File:20120410LXM213259_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|After the first few steps of planing the edges.]]
	[[File:20120410LXM215603_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=Work in progress photo of a wooden NACA airfoil made with a table saw and a planer out of spruce\|Work in progress photo of a wooden NACA airfoil made with a table saw and a planer. The wood (spruce) used here is of rather low quality and split up at the trailing edge.]]		[[File:20120410LXM215603_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=Work in progress photo of a wooden NACA airfoil made with a table saw and a planer out of spruce\|Work in progress photo of a wooden NACA airfoil made with a table saw and a planer. The wood (spruce) used here is of rather low quality and split up at the trailing edge.]]

← Older revision		Revision as of 22:40, 10 April 2012
Line 124:		Line 124:

	[[File:20120410LXM213251_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|A board of spruce ready to be worked on with a planer.]]		[[File:20120410LXM213251_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|A board of spruce ready to be worked on with a planer.]]
	[[~~File:~~File:20120410LXM213259_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|After the first few steps of planing the edges.]]		[[File:20120410LXM213259_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=photo of a piece of spruce\|After the first few steps of planing the edges.]]
	[[File:20120410LXM215603_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=Work in progress photo of a wooden NACA airfoil made with a table saw and a planer out of spruce\|Work in progress photo of a wooden NACA airfoil made with a table saw and a planer. The wood (spruce) used here is of rather low quality and split up at the trailing edge.]]		[[File:20120410LXM215603_etemu.com_airfoil.jpg\|400px\|thumb\|right\|alt=Work in progress photo of a wooden NACA airfoil made with a table saw and a planer out of spruce\|Work in progress photo of a wooden NACA airfoil made with a table saw and a planer. The wood (spruce) used here is of rather low quality and split up at the trailing edge.]]