Login| Sign Up| Help| Contact|

Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/120653
Kind Code:
The present utility model is a "Generator of sustainable electric energy without, the use of fossil fuels and without degradation of the environment", 5 with application in- the area of energy production, aiming to settle the operational costs, reduction of space and impact Since the Wind Farms of Brazil and the World have high logistics costs. The power generator will use the nacelle, a component of a wind-generating unit (Figure 1), currently being eliminated: the blades, rotor / hub, tower segments and the presence of wind, having in view that the wind does not Will be the energy matrix. The nacelle (Figure 2) consists of a housing that houses the entire power generation mechanism. In addition to the nacele, the sustainable energy generation system (Figure 4) will have a support base and a coupled motor that will be its energy matrix. Rotation of the motor donor shaft causes rotation of the nacelle receiver shaft in a controlled manner by the motor control panel, and such rotational energy generates electricity. The power supply of this motor will be made by the conventional electric grid, converted by the electric transmission system (Figure 3) already used in wind turbines.

SARAIVA, Anderson da Silva (2036 Domingos Borges Street, Teresina, Piauí 64.028-655, BR)
Application Number:
Publication Date:
July 20, 2017
Filing Date:
January 12, 2017
Export Citation:
Click for automatic bibliography generation   Help
SARAIVA, Anderson da Silva (2036 Domingos Borges Street, Teresina, Piauí 64.028-655, BR)
GERARDO, Wesley Richard dos Santos (355 Francisco Melo Lobo Street 64.020-190, Teresina, Piau, BR)
International Classes:
H02K53/00; F03G7/10; H02K7/00; H02N11/00
Domestic Patent References:
Foreign References:
Download PDF:

1. "Generator of sustainable electric energy without the use of fossil fuels and without degradation of the environment", characterized by an Electric Power Generator with an electric motor coupling to a wind turbine generating unit, dispensing the use of the blades, rotor, Segments of the tower and wind as the energy matrix, thus effecting a cycle of electric energy.

2. "Sustainable electricity generator without the use of fossil fuels and without degradation of the environment", characterized by a Sustainable Energy that minimizes the costs of the work in relation to the base of support of the tower (excavation, concrete, iron, geological studies, Machinery and others), reduction of logistics (parts transport, crane) and reduction of environmental impact (reduced construction area, reduced degradation of the environment).


[001] Descriptive report for patent application of utility model that is an electric power generator, with application in the area of production of electric energy for transmission and with low cost of operation.

[002] According to the Wind Energy Center (CE-E0LICA), in partnership with ELETROBRAS, through the Energy Efficiency Program (PROCEL), a member of the Faculty of Engineering of the Pontifical Catholic University of Rio Grande do Sul (PUCRS), on Line, http://www.pucrs.br/ce- eolica/faq.php?q=23, currently, the wind farms installed in Brazil and in the world have high logistics costs and environmental impacts, some of which are:

1. Land use - in wind farms, turbines must be sufficiently far apart to avoid disturbance caused by wind flow from one unit to another. These spacings should be at least 5 to 10 times the height of the tower. Lately there have been degraded areas of saw because they have a low level of corrosion and, consequently, maintenance, but it often impacts on the change in the water flowing from rains that are often scarce, unlike the coastal region, however, this area Should be better utilized in agricultural production or leisure activities;

2. Noise - Large turbines generate significant audible noise, so there are regulations regarding their installation in the vicinity of residential areas. However, in the most modern turbines the level of noise has been reduced. The noise comes from two sources: the air flow itself in the blades and the mechanisms (generator, reduction box);

3. Visual Impacts - Turbine blades produce shadows and / or moving reflections that are undesirable in residential areas; This problem is most evident at high latitude points where the sun has the lowest position in the sky. Among other parameters that can be related are: the size of the turbine, its design, numbers of blades, color and numbers of turbines in a wind farm. Large machines are Objects of great visibility and interfere significantly in natural landscapes; So there may be restrictions on their installation in some areas (eg in tourist areas or areas of great natural beauty);

4. Poultry - on turbine farms, bird mortality due to impact with turbine blades (it is believed that animals can not see them when they are moving), therefore it is not recommended to install them in areas of Birds, breeding areas and areas of environmental protection;

5. Electromagnetic interference - this happens when the wind turbine is installed between the receivers and transmitters of radio, television and microwave waves. Turbine blades can reflect part of the electromagnetic radiation in one direction, such that the reflected wave interferes with the signal obtained.

[003] Based on the approval of Law 10.438, revised by Law 10.762 in 2003, which created the Program for the Incentive of Alternative Energy Sources - PROINFA (PROINFA, 2004), the obligation of electric power concessionaires to participate Universalization of access to this program. PROINFA aims to increase the participation of alternative energies in the interconnected system and diversify the Brazilian energy matrix. The purchase of this energy must be made through public bidding and the supply contracts signed with ELETROBRAS for 20 years. In addition, there is financing of up to 70% of the value of the investment, with resources made available by BNDES. In order to help solve the aforementioned problems and to contribute to the reduction of environmental impact, the present utility model was developed, which consists of an electric power generator that uses only the nacelle, a component of a wind generator unit (Figure 1), Currently being eliminated from this generating unit: the blades, rotor / hub and tower segments. The nacele (Figure 2) consists of a housing that houses the whole mechanism of the generator consisting of gearbox, brakes, gears, bearings, electronic control and hydraulic system.

[004] The main components of a wind-generating unit are described in Figures 1 and 2, and are: tower; Rotor blades; axis; Nacele; gearbox; generator; controller; Brakes; Electronic control unit and Electrical equipment. The following is a brief description of the function of its main components (OHARA, 2014):

• Rotor blades: Capture wind energy and convert it into rotational energy on the shaft.

• Rotor: Set formed by the blades and the hub.

• Axis: Transfers the rotational energy to the generator.

• Nacele: Compartment where the components are housed, protecting them against adverse environmental conditions such as rain, dust and snow.

• Box of And Gears: Increases the speed of rotation of the shaft between the generator and the rotor hub.

• Multiplier: Gear set responsible for transmitting mechanical energy from the rotor to the generator. Transforms the low speed of rotation of the input shaft at high speed into the output. Some wind turbine configurations use low speed synchronous generators and therefore do not need the multiplier box.

• Generator: Uses rotational energy to generate electricity using electromagnetism.

• Wind sensors: Measure direction and wind speed (anemometer) And transmit this information to the controller.

• Electronic Control Unit: Monitors the entire system, turns off the turbine in the event of a fault, and adjusts the turbine's alignment mechanism with the wind.

• Controller: Or control system is used for starting and / or shutting off the turbine by monitoring all parts of it.

• Directional steering motor: used to position the nacelle so that the rotor is facing the wind. System or energy overload, holds the shaft rotation.

• Tower: Holds the rotor and nacelle, and erects the whole assembly at a height convenient for its operation, where the blades can rotate safely and far from the ground. As the speed of the winds increases with height, the turbines are high to capture more energy.

• Electrical Equipment: Transmit generator electricity through the tower and control the turbine safety elements.

[005] The big problem with the horizontal axis wind turbine is the need to constantly measure the wind speed to decide whether it should stay on or not. If it is windy too little, the cost to keep the generator connected is greater than the energy produced by it, making it necessary to temporarily turn it off. Despite the grandiosity of modern windmills, the technology used remains the same 1000 years ago. However, everything indicates that it will soon be supplanted by other technologies of greater efficiency.

[006] As for the equipment for the generation of new sustainable energy, the nacele of the wind generator will be used, with the use of the brake and the wind sensors (anemometer and anemoscope, used to measure the wind speed and detect the presence Of wind, respectively), considering that the wind will not be the energetic matrix. The blades and the rotor / hub will be replaced by the use of an axle coupled to an engine which will be the generator's energy matrix.

[007] The power supply of this motor will be made by the conventional electric grid, already converted by the electric transmission system (Figure 3) already used in wind turbines. Thus, in the same way as wind units, the connection of the generator to the conventional electricity grid will take place through the following devices: Converter (equipment that converts the generated energy to levels appropriate to the injection in the network) and Transformer Which increases the voltage level generated by the converter to the mains voltage, of the order of tens or hundreds of kV (transmission line).

[008] The sustainable energy generation system (Figure 4) is composed of. a support base, an engine (which replaces the blades and the wind unit's rotor / hub) and the nacelle. The rotation of the donor shaft present in the motor causes rotation of the receiver shaft present in the nacelle, in a controlled manner by the motor control panel, and this rotational energy generates electricity.

[009] This system can operate either for transmission / subtransmission or only for distribution, since it does not depend on a large area to accommodate the Generating Units (UG's), and may have the same substation area, making the transmission / subtransmission only to interconnect substations that depend Of a transmission / subtransmission line for powering the same.