DE102007001174A1 - Coupling for a driving mast for a vertical armature/rotor in a wind-power plant links the rotor to Flettner rotors while rotating the mast to generate wind on a orbit - Google Patents

Abstract

Flettner rotors (1) act as blades for a vertical armature/rotor, i.e. a wind-power plant using vertically rotating blade sections like the lifting-force effect in aircraft and pressure ratios on blade lower and upper edges for lift as well as conversion of in-flowing air in lifting energy. When modified, Flettner rotors are used with any conceivable profiled surface, i.e. jointed surface, with or without inlet and outlet openings as lifting blades for a vertical armature/rotor. Independent claims are also included for the following: (1) A Flettner rotor as blades of a vertical armature; (2) A modular structure for a total wind-power plant with simple assembly and transportation; (3) A driving mechanism for a Flettner rotor by rotating the whole system.

Description

The The invention relates to a system for regenerative power generation Wind in the small-medium application on the basis of the "Flettner rotor" Unity is based on the so-called "vertical runners".

Of the Term "power generation in the retail application " all applications for regenerative power generation from 200 watts up 250 KW power for Use in commercial buildings, small communities, homes, Holiday homes and cottages, agricultural Outbuildings, all possible and conceivable island applications, sailing and motor boats, etc. The operation The systems can be network parallel and as pure isolated solutions in the corresponding environment with adapted generators and storage media respectively.

The Invention is also said to be network substituting in areas with weak power supply, net stabilizing and net supplementing be used.

The However, the invention is not associated with conventional wind turbines compare that to the corresponding bout of wind is dependent, the plants run even in calm conditions by self-excitation. The invention is only partially dependent on the "wind power" in the wild, they uses additionally known physical effects, as well as free amounts of energy, so far have received little attention in the art. By the property as "endurance runner" can be the first time stable supply guaranteed without being influenced by the weather dependent to be.

The Invention should contribute to the years was sluggish Development of wind turbines to advance and solutions available Make the series easy, durable and within reasonable budget manufacture, assemble and operate.

The Assemblies are easy to manufacture and assemble, so the equipment even in areas with not very well developed technical infrastructure can be built and assembled.

In usually are small wind turbines with the usual building concepts of horizontal running wind turbines with high sound levels and impairments in the intended use equate. These horizontal runners with wings are from the large wind application known, the disadvantages are poor startup of the system at low wind strength and breakage hazard and shutdown at higher wind speeds.

More and more win "vertical runners", so wind turbines Vertical axes are of importance in decentralized small-scale supply. These vertical runners are known in the art as buoyancy and resistance runners. Here are representative of the wind power plants after "Savonius" and "Darrieus" with all modifications called.

Next These developments took place in the twenties of the last century the "Flettner rotor" known as the Ship propulsion was used and with its help the then Inventor an Atlantic crossing with a fuel consumption of about 1/10 of the normal consumed quantities conducted. So was z. B. the research vessel "Calypso" of the world famous researcher Cousteau provided with such a drive.

Of the Flettner rotor is strictly speaking a round sail that is in rotation is offset and triggers corresponding effects. In physics, this effect is sometimes known and described as the "Magnus effect". This means that rotating body generate a transverse force in the fluid that occurs in addition to the normal physical "wind action." To observe is this "Magnus force" on at angeschnitten beaten balls, the one arched Distraction by the rotation of the body, here ball, experienced. From medicine, the Magnus effect is in the order of the blood particles known by rotation in the arteries, thus a very specific classification of the velocity distribution received in the bloodstream.

The "Magnus effect" is thus no hidden power, but in nature diverse observable, and indeed where rotating forces grading and reinforcing have to work.

Out the research is known that the Flettner rotor about 10 times The effect of a simple sail, if it has a definite relationship to Wind speed is rotating. This high efficiency does not explain only the "Magnus effect", it will be additional Energy taken from the environmental movement. On this theoretical Consideration is not closer It is also part of very scientific research. The amount of energy that is generated during the rotation of the rotor at least in many ways Investigations have been found and basis of the invention.

The force multiplying Effect of the Flettner rotor is ideally suited to foreign or own movement, here wind power, regenerative power generation "on demand" to generate.

The previous attempts, the Flettner rotor for energy in wind-like Anla conditions, mostly in horizontally running machines, failed because of control technology, which was partially unavailable, sometimes too complex to bring the systems to maturity. The projects were at the time too large, planned up to the megawatt range and already for material consumption reasons very expensive and expensive.

The system consists of a rotating mast, which can also be referred to as a shaft, and an attached carrying or bogie on the one, two or infinite Flettnerrotoren that can be arranged at various distances to the center of rotation. In the 1 an example with two rotors is shown. The Flettner rotors are rotatably mounted. On the mast is a translation, which puts the Flettner rotors in a very specific relationship to the rotation of the mast itself in rotation. The ratio is exactly 1: 4 the ratio of the rotational speed of the entire system to the rotational speed of the Flettner rotors. The entire system is in a three-legged framework.

The following consideration refers to calm or low wind speeds, since the invention will find the main application here. Higher wind speeds due to higher wind only slightly boost performance, but never reduce performance out.

The System is powered by an electric motor attached to the mast (shaft) set in rotation. The Flettner rotors move on a circular path and receive a circulation speed corresponding wind exposure. This Windbeaufschlagung is on the inside (to the center of rotation) smaller than on the outer side. By the way, this already means an enforcement or even simplification of the beginning of rotation. By the translation attached to the mast the Flettner rotors commence according to o. a. Ratio 4: 1 to turn to the wind speed. The Magnus effect and the connected personnel start to work.

If the system is accelerated to an appropriate speed, it begins to accelerate itself and gives the power accordingly to the mast construction, which then acts as a wave back. Conceivable is also a hollow shaft construction, which is the supporting and accelerating Function of the actual. The drive is powered by load shedding off, a foreign excitation occurs only when the Speeds below a selected one Value should fall. The foreign excitation brings no power in the system, but provides only for the rotation.

It should be noted is that the faster the faster the acceleration System turns. Release of energy through wind or wind-like energy operations or increase by acceleration in the second and third power, so the use of external energy must decrease with increasing speed of the entire system.

Of the Advantage of this, largely self-regulating system of the invention is that through acceleration or braking also the energy output can be regulated and adapted to the needs. This is a dependency not from external conditions given more, ensuring a stable, even supply is. The invention is technically easy to control, so too an employment in less technically developed areas is possible.

at The invention achieves an efficiency of about 8: 1, by Arrangement of air baffles.

One Another advantage of the invention is the environmental compatibility due to smoothness and lack of danger for birds.

Claims (4)

Coupling of the drive mast of the vertical runner with the Flettner rotor 1 , Numeral 1 . 2 and 3 : The connection of the rotatable drive mast (or shaft) with the Flettner rotors makes it possible to generate "wind" on the circular path by rotating the mast, from 1 to an infinite number of Flettner rotors can be mounted. Flettner rotor as the wing of a vertical runner: Under The term "vertical runner" includes wind turbines, which can be compared to vertically rotating sash profiles the buoyancy effect of aircraft, the pressure conditions at the bottom of the wing and upper edges to the "rise", so the implementation from oncoming Use air in buoyancy energy. These systems run very quietly. Also flying birds are not endangered. The claim is directed in particular to the use of the Flettner rotor, also in its modifications with every conceivable one profiled surface, articulated surface, with and without inlet and outlet openings as lift wing a vertical runner. Of the Claim is also directed to the use of force-enhancing Baffles in all imaginable shapes (concave, convex, smooth). By appropriate acceleration and braking can increase the performance Need to be adjusted. The claim is also directed the possibility the regulation as needed of the wind power system. Modular construction of the entire wind power With ease of assembly and transport: Another advantage of the invention is that the system can be built in different sizes and has a modular design. Thus, all possible diameters of the circular path of the system can be combined with different sized Flettner rotors. Thus, the system can be adapted to local conditions. It is built demountable, so that small systems can be used on mobile for the permanent generation of energy. The systems consist of a few, prefabricated components and are relatively lightweight and easy to assemble. Drive of the Flettner rotor by rotation of the entire system: The System is accelerated only at the mast until the external forces for self-acceleration to care. about a corresponding gear is the Flettnerrotor to the required and adjusted speed brought. It finds only one, in itself homogeneous Stranger excitement instead. additional Although electronic regulations are explicitly mentioned as a claim for a patent, However, they are not required in principle. This concludes, however an additional Electronics are not enough, which is also part of the system. The claim is also directed to control electronics for fine-tuning and performance increase of the system.