WO2018146595A1 - A mobile energy-conversion-set mounted on mobile object and method of using the same for generating and supplying electrical energy even when wind is not blowing - Google Patents

Abstract

The present invention relates to the field of producing and supplying renewable energy such as electrical energy by using properties of stationary air-mass. The invention addresses the technical problem that conventional wind mill uses air- turbine which can help produce electrical energy, only when wind is blowing. At other times, the conventional wind mill lies idle and cannot then produce electrical energy. The air turbine of present invention helps produce electrical energy, even when wind is not blowing, by utilising inertial energy of the stationary air-mass. This happens when air-turbine along with other components of invention is put into motion due to movement of mobile object, on whose surface these components are fixedly mounted. The invention uses D.C. electric generator or A.C. electric generator, as required. Depending upon the type of generator used and the type of end-use of invention, other components such as pulse-wave-modulator, rectifier, inverter, are used. The generated D.C. electrical energy is stored in electrical-energy-storage-battery. The generated A.C. electrical energy is supplied to A.C. supply-grid or A.C. load. Millions of batteries can be charged by use of this invention every day, in developing country like India without use of any type of fuel, and without use of specifically allocated costly land-resource required for power-generation

Description

A MOBILE ENERGY-CONVERSION-SET MOUNTED ON MOBILE OBJECT AND METHOD OF USING THE SAME FOR GENERATING AND SUPPLYING ELECTRICAL ENERGY EVEN WHEN WIND IS NOT BLOWING

Field of Invention

The present invention generally relates to the field of using renewable energy source like wind to generate electricity and particularly relates to a mobile energy- conversion- set, mobility thereof being obtained, by being mounted on external surface of mobile object, for converting the inertial energy of the stationary air- mass into electrical energy and more particularly relates to producing and supplying electrical energy even when natural wind is not blowing.

Discussion of Prior- Art

It is well known in the prior art, to use a wind-mill or a wind-machine or a wind- turbine, or an air-turbine for conversion of wind-energy into electrical energy. One known construction of such a wind-turbine includes a relatively large propeller fixedly connected to a rotatable central shaft, which central shaft is mechanically coupled with a central shaft of an electricity-generator.

The above-mentioned wind-turbine of prior art, uses conversion of blowing wind's kinetic energy to generate electrical energy that can be used in homes, businesses, industries and such other places. An individual wind-turbine can be used to generate electricity on a small scale. A plurality of wind-turbines can be functionally grouped together to form what is sometimes known as a wind-farm or a wind-park, which can generate electricity on a much larger scale. When the wind blows on the angled propeller-blades of the rotor of a wind- turbine, then the impact of wind on blades causing the rotor to rotate, converts some of the wind's kinetic energy into mechanical energy. The central shaft of the rotor and the gearbox mechanically connect the rotor to the generator of electrical energy, so that when the rotor rotates, so do appropriate parts of the generator. The generator uses an electromagnetic field to convert the mechanical energy into electrical energy. The electrical energy generated by the generator, is transmitted along cables to an electrical sub-station.

Here, the electrical energy generated by all the wind-turbines in a wind-farm is combined and converted to a high voltage. The national grid uses high voltages to transmit the electricity over long distances through the power-supply-lines to the houses and businesses that need it. Here, the other transformers reduce the high voltage back down to the usable level of voltage.

In the prior-art, there are three major types of wind power plants (WPP).

a. Geared WPP c. Semi-geared Hybrid WPP b. Direct Drive WPP

Every WPP has the following three major components in addition to the foundation and sub-station.

a. Rotor, b. Nacelle and 25 c. Tower

These three major components use various thirty two mechanical, electrical and electronics sub-components, as given below:

Thirty two sub-components of a typical WPP

A. ROTOR

1. Rotor blades 4. Lightening protection 2. Rotor hub 35 5. Tip brake system 3. Nose cone 6. Pitching system B. NACELLE

7. Main low speed shaft 15. Sensors, display units,

8. Gearbox (not for gearless WPP) recorders, alarms 9. Bearings, couplings, dampers 16. Nacelle electronic

10. High-speed shaft (not for 15 controller

gearless WPP) 17. Mini-crane (hoist)

11. Electrical generator 18. Nacelle main frame (bed plate)

12. Disc-brake 19. Nacelle housing (canopy)

13. Hydraulic System 20. Wind sensor assembly

14. Cooling systems 20 21. Yaw system

c. TOWER

22. Tubular steel tower 30 28. Tower base electronic

23. Lattice steel tower controller

24. Tubular ferro-concrete 29. Electric power panel tower 30. Transformers

25. Hybrid tower 31. Electric switchyard

26. Guyed tubular tower 35 32. Tower and foundation

27. Electrical substation

Detailed information about each of these thirty two sub-components is already available in the prior-art-literature, which includes different books, journals and patents related to wind-turbines and to the methods of generating electrical energy by use of wind energy. Some books (along with the names of authors) about conversion of wind energy into electrical energy are listed below for reference:

1. "Wind power equipment" - by D. F. Warne

2. "Wind power plants and projects development" by Joshua Earnest and Tore Wizelius

3. "Renewable energy application to industries" - by Editors C. Palaniappan, Ajit Kumar Lolar and T. M. Haridasan

4. "Renewable energy resources and conversion technology" - by N. K.

Bansal, Manfred Kleeman and Michael Meliss

5. "Non-conventional energy resources" - by G. S. Sawhney

6. "Renewable energy Engineering and technology - A knowledge compendium" - By Editor VVN Ki shore

7. "Sustainable energy - choosing amoung options" - by J W Tester, E. M.

Drake, M. J. Driscole, M. W. Golay and W. A. Petern

8. "Energy sources, resources and options" - by M. N. Sastri.

This prior-art-information is easily available to any person skilled in the art, desirous of obtaining this information. As such, this information is not repeated in this specification. After studying the prior-art literature, it is clearly seen that the set of above mentioned components and sub-components of any wind-mill of prior art, when considered as a whole, does not have any translational motion parallel to the ground surface on which the set is supported. The set, as a whole, can be considered to be stationary with respect to the ground surface.

When the wind is not blowing, that is, there is no movement of the air-mass, the propeller-blades do not rotate about the central shaft of the rotor, to which shaft, these propeller-blades are fixedly connected. Hence correspondingly there is no rotation of connected generator-components and therefore electrical energy is not produced.

When the wind is blowing, that is when the air-mass surrounding the wind-mill is moving with respect to the angled blades of the propeller, then the impact of the moving air-mass, that is of wind, on the surface areas of initially-stationary angled blades of propeller of the rotor of wind-turbine, creates such types of pressures and forces on different surface areas of angled blades, that the cumulative effect of the resulting forces acting on these surface areas create a rotational torque required for causing rotational motion of the angled blades about the central shaft the rotor, as these blades are fixedly connected to this central shaft. This rotating central shaft of the rotor, being mechanically coupled with central shaft of generator of electricity, causes rotation of appropriate - generator - parts, thereby leading to generation of electricity.

From this discussion, it is clearly seen that for creating the above-mentioned rotational torque, a relative motion between angled blades of propeller and surrounding air-mass is necessary. Here, initially the angled blades of propeller are stationary and the wind that is, moving air mass, impacts the blades and makes them rotate. Hence the rotational effect developed by the relative motion is clearly observed.

When the wind is not blowing, there is no relative motion between stationary angled blades and the surrounding stationary air-mass. Hence rotational torque is not developed and rotational motion of blades does not occur. Hence as a result, electricity is not generated.

Thus during the time - intervals when the wind is not blowing, the wind-turbine of prior-art lies idle and the electrical generator does not produce electrical energy.

In view of this discussion, there is felt a need for developing a system of air- turbines and generators of electricity, which can generate electrical energy, even when the wind is not blowing. This need is fulfilled by the present invention. Nomenclature of components used in the present invention and numerals representing these components:

Numerals Components

1 Base plate to support other components

2 Air turbine for converting wind energy into mechanical energy of rotation of shaft and supplying mechanical energy of rotation to electric generator

3 D.C. electric generator for converting supplied mechanical energy of rotation into electrical energy, thereby producing D. C. (direct) electric current.

4 Electrical storage battery for storing D.C. electrical energy

5 A.C. electric generator for converting supplied mechanical energy into electrical energy, thereby producing A.C. (alternating) electric current

6 Rectifier for converting A.C. (alternating) electric current into D.C.

(direct) electric current

7 Inverter for converting D.C. (direct) electric current into A.C.

(alternating) electric current

8 A. C. electric grid. (National Electric Grid)

9 Mobile object (shown only in Figure - 10) on whose external surface, the mobile energy-conversion set is to be fixedly mounted.

10 Pulse Width Modulator (PWM) Brief Description of Drawings

The description of the present invention is to be read along with the accompanying drawings provided in this specification. Brief description of drawings is given below:

Bold horizontal arrow in each of Figures 1 to 8, shows direction of motion of mobile object, on whose external surface the present invention is fixedly mounted. Figures 1 and 2 show schematic diagrams of the arrangements of components of the invention, which produce D.C. electrical energy which is stored in electrical storage battery, when the supporting mobile object moves in either of two opposite directions, wherein direction of each motion is shown by respective bold arrow. Figure 3 and 4 show schematic diagrams of the arrangements of components of the invention, which produce D.C electrical energy which is converted into A.C. electrical energy by using appropriate inverter and then supplied to A.C. electrical grid [national A.C. electrical grid] or A.C. load. Figures 5 and 6 show schematic diagrams of the arrangements of components of the invention, which produce A.C. electrical energy, which is supplied to A.C. electrical grid [national A.C. electrical grid] or A.C. load.

Figures 7 and 8 show schematic diagrams of the arrangements of components of the invention, which produce A.C. electrical energy, which is converted into D.C. electrical energy by using appropriate rectifier, wherein the produced D.C. electrical energy is supplied to electrical storage battery. Figure 9 shows schematic diagrams of toy-paper- wind-mill.

Figure 10 shows schematic diagram of a top-part of mobile object (like a railway coach) whose top-surface carries the embodiments of present invention (shown in Figure 1 and Figure 2) are adjacently disposed.

Note: The Pulse Width Modulator is not shown in any figure

Summary of the Invention

The present invention relates to the field of producing and supplying renewable energy such as electrical energy by using properties of stationary air-mass. The invention addresses the technical problem that conventional wind mill uses air- turbine which can help produce electrical energy, only when wind is blowing. At other times, the conventional wind mill lies idle and cannot then produce electrical energy. The air turbine of present invention helps produce electrical energy, even when wind is not blowing, by utilising inertial energy of the stationary air-mass. This happens when air-turbine along with other components of invention is put into motion due to movement of mobile object, on whose surface these components are fixedly mounted. The invention uses D.C. electric generator or A.C. electric generator, as required. Depending upon the type of generator used and the type of end-use of invention, other components such as pulse-wave-modulator, rectifier, inverter, are used. The generated D.C. electrical energy is stored in electrical-energy-storage-battery. The generated A.C. electrical energy is supplied to A.C. supply-grid or A.C. load. Millions of batteries can be charged by use of this invention every day, in developing country like India without use of any type of fuel, and without use of specifically allocated costly land-resource required for power-generation. Description of Invention

Principle Of Physics Supporting The Concept Of Present Invention

The basic principle of physics used in development of present invention is explained below, considering the working of toy paper-wind-mill, shown schematically in figure 9.

General public is aware of the working of a paper-wind-mill used by the children during their play. Three different cases about paper-wind-mill are discussed below. Case (i) Wind is blowing and paper-wind-mill, as a whole, is stationary at one place;

Case (ii) Wind is not blowing, and paper-wind-mill, as a whole, is stationary at one place;

Case (iii) Wind is not blowing, and paper-wind-mill, as a whole, is moving in forward direction.

Case (i) - Wind is blowing and Paper-Wind-Mill, as a whole, is stationary at one place

When a child standing at one place holds the supporting stick of Paper-Wind-Mill in his hand, with the plane of rotation of angled blades of Paper-Wind-Mill being held in a direction which is facing and perpendicular to the movement-direction of blowing-wind, it is seen that, by cumulative effect of the forces developed by the pressures created by impact of moving air-mass of wind on surface areas of angled paper blades of Paper-Wind-Mill, when they come in contact with moving air-mass, a rotational torque is created, which makes the Paper- Wind-Mill rotate in appropriate direction. This direction depends upon the orientation of curved paper blades when they face the moving air-mass. Case (ii) - Wind is not blowing, and Paper-Wind-Mill, as a whole, is stationary at one place

It is also observed that, when the wind is not blowing (that is, when the air-mass is stationary), the curved paper blades of Paper- Wind-Mill do not rotate.

Case (iii) - Wind is not blowing, and Paper-Wind-Mill, as a whole, is moving in forward direction.

It is also observed that the rotational motion of the curved paper blades of Paper- Wind-Mill can be achieved, even when the wind is not blowing (that is, even when the air-mass is stationary), when Paper- Wind-Mill, as a whole, is moving in forward direction.

In this particular case, a child runs in forward direction, with his hand holding the supporting stick of his Paper- Wind-Mill, in such a way that the supporting stick is vertical and the supporting pin is horizontal and the surface - areas of curved paper blades of Paper- Wind-Mill are pressing / pushing against the stationary air-mass.

In reaction to this pressing / pushing action of paper blades of Paper- Wind-Mill, the particles of stationary air-mass create reactionary pressures on the surfaces of curved paper blades of Paper- Wind-Mill. The cumulative effect of the forces generated by these reactionary pressures will create a rotational torque, acting on curved paper blades of Paper- Wind-Mill. This will result in rotational motion of paper blades of Paper-Wind-Mill, about its central supporting pin, even when the wind is not blowing (that is, even when air-mass is stationary).

The positive and successful results of rotational motion of curved paper blades of Paper-Wind-Mill in case (iii) are achieved, because of the relative motion between moving Paper- Wind-Mill and stationary air - mass. Mobility Of Air-Turbine

The inventors of the present invention have realised that, to obtain needed relative motion between the angled blades of the air-turbine, of the present invention and the air-mass surrounding the air-turbine, for developing rotational torque, at least one of them should be in moving / mobile state. Hence, when the wind is not blowing, that is, when the air-mass is stationary, the needed relative motion can be achieved only when the air-turbine itself is put in the moving/mobile condition. Then the energy-conversion-set of the present invention described hereafter can be made operational, as the angled blades of the air-turbine of this energy- conversion- set will rotate and thereby help the appropriate parts of the electrical generator to rotate and produce electrical energy.

The abovementioned mobility of the air-turbine can be achieved by rigidly connecting the entire energy-conversion-set to the external surfaces (horizontal or vertical surfaces) of the mobile objects which can be put into the motion (horizontal or inclined directional motion) with respect to the ground surface.

Types Of Mobile Objects To Be Used To Make Present Invention Operational

These mobile objects include passenger coaches and the goods wagons of the railway trains, when they are moving in forward directions or reverse directions, on the railway tracks. Other mobile objects include buses, trucks, tankers, containers, automobiles, auto-rickshaws, motorbikes, bicycles and such other vehicles, when each vehicle is running on the road surfaces, in forward direction.

When the wind is not blowing and the air-turbine of mobile energy-conversion-set is moving forwardly and translationally with respect to the ground surfaces, the surfaces of angled blades of this air-turbine, which is moving through the stationary air-mass surrounding the mobile object, will press on the particles of the stationary air-mass. These particles of the air-mass, in a reaction to the pressing-action of the angled blades, will create such pressures and forces acting on the surface areas of the angled blades, that the cumulative effect of the resultant forces acting on the angled blades of air-turbine will create rotational torques which will make the angled blades rotate about the supporting central shaft. This central shaft of air-turbine, being mechanically connected to the central shaft of the electrical generator of mobile energy-conversion-set, will make the appropriate parts of the generator rotate and produce electrical energy.

The generated D.C. electrical energy is supplied to and stored in a plurality of the electrical storage batteries of energy-conversion-set. Alternatively, the generated A.C. electrical energy can be supplied to electrical energy supply lines of the electrical grid (national electrical grid) or A.C. load.

It should be noted that, the above-mentioned electrical storage batteries store the D.C. electrical energy received by them, whereas the above-mentioned electrical grid receives A.C. electrical energy.

Sizes of Components

The sizes of the components of the mobile energy-conversion-set of the present invention will vary, depending on the types and sizes of the mobile objects, supporting the mobile energy-conversion-sets of the present invention. Due to the different types of restraints which are imposed on the supporting mobile object due to different factors, such as clearances required for safe movements of mobile objects in different locations, inertia of masses of components of mobile energy- conversion- sets of present invention, sizes and structures of the supporting mobile objects, it is observed that length, breadth, thickness and shapes of angled blades and lengths and diameters of shafts of air-turbines and generators, the sizes and capacities of mobile generators are very small when compared to the corresponding parameters of components of ground-based wind-power-plants (WPP) of the prior-art.

On the railway tracks, the traction of passenger - coach - railway train or goods - wagon - railway train is done by using A.C. electric energy supply. For some other applications in railway electric sub-stations, D.C. electrical storage batteries are used. These batteries store D.C. electrical energy and supply the stored D.C. electrical energy, as and when required. The present invention provides for different alternative arrangements of components for different embodiments of mobile energy-conversion-set. Some arrangements of components provide for D.C. electrical energy supply as an output to be supplied to D.C. electric energy storage battery. Some other arrangements of components provide for A.C. electrical energy supply as an output to be supplied to A.C. electrical grid (national electrical grid), or A. C. load. The details of the abovementioned different arrangements used in different embodiments of present invention are described below:

Four Embodiments of Present Invention (A), (B), (C), (D)

(A) Accordingly, referring to figures 1 and 2, an embodiment of the present invention, provides a mobile energy - conversion - set P, fixedly mounted on the external surface of a mobile object (9) not shown on figures 1 and 2. The set P is said to be mobile, because the surface of the supporting mobile object, when put in motion, is seen to be mobile with respect to the ground surface. The mobile energy - conversion- set P comprises a base-plate (1), an air-turbine (2), a pulse width modulator (10), a D.C. generator (3) and an electrical storage battery (4), wherein all of the components (2), (10), (3) and (4) are fixedly mounted on the base plate (1) and this base plate (1) is fixedly mounted on the external surface of the mobile object (9) shown in fig 10. The connections of the components are shown schematically in each figure.

Referring to figure 10 and to the detailed explanation given under case (iii) of operation and working of paper wind mill, it can be easily understood that the relative motion between the air - turbine (2) and the surrounding air-mass, causes the rotation of angled blades of the rotor of air-turbine (2), and hence related rotation of the central shaft of generator (3). A pulse-width-modulator (PWM) (10) is disposed next and adjacent to air-turbine (2). The central shaft of D.C. generator (3) is mechanically and fixedly coupled with the central shaft of rotor of air-turbine (2), thereby causing appropriate rotation of parts in D.C. generator (3), which generates D.C. electrical energy, thereby producing D.C. electric current. This D.C. electric current is supplied to D.C. electrical storage battery (4) where the electrical energy is stored. The electrical storage battery (4), instead of being fixedly mounted on the base plate (1), can be alternatively disposed at any other suitable location in the inside space of the mobile object (9). The connections of the components are shown schematically.

(B) Referring to figures 3 and 4, showing another embodiment of the present invention, provides a mobile energy - conversion - set Q, fixedly mounted on the external surface of a mobile object (9) shown only in figure 10 and not shown in Figure 3 and 4. The set Q comprises a base plate (1), an air-turbine (2), a pulse- width-modulator (PWM) (10), a D.C. electrical generator (3), an electrical inverter (7), wherein all the components (2), (10), (3) and (7), are fixedly mounted on the base plate (1) and this base plate (1) is fixedly mounted on the external surface of the mobile object (9). A pulse-width-modulator (PWM) (10) is disposed next and adjacent to air-turbine (2). The central shaft of D.C. generator is mechanically and fixedly coupled with the central shaft of rotor of air-turbine (2), thereby causing appropriate rotation of parts in D.C. generator (3), which generates D.C electrical energy, thereby producing D.C. electrical current. The D.C. generator (3) is electrically connected to the electrical inverter (7), which converts the D.C. current into A.C. current, which is fed to the A.C. electrical grid (A.C. national grid) (8) or A.C. load. The connections of the components are shown schematically in the figures.

(C) Referring to figures 5 and 6, yet another embodiment of the present invention provides a mobile energy-conversion-set R, fixedly mounted on the external surface of a mobile object (9) shown only in figure 10 and not shown in Figure 5 and 6. The set R comprises a base plate (1), and air-turbine (2), a pulse- width-modulator (PWM) (10), an A.C. electrical generator (5), wherein all of the components (2) (10) and (5) are fixedly mounted on the base plate (1) and this base plate (1) is fixedly mounted on the external surface of the mobile object (9). A pulse-width-modulator (PWM) (10) is disposed next and adjacent to air-turbine (2). The central shaft of A. C. electrical generator (5) is mechanically and fixedly coupled with the central shaft of the rotor of air-turbine (2), thereby causing appropriate rotation of parts in A.C. electrical generator (5), which generates A.C. electrical energy, thereby producing A.C. electrical current. This A.C. electrical current is fed to A.C. electrical grid (A.C. national grid) (8) or to A.C. load. The connections of the components are shown schematically in the figures. (D) Referring to figures 7 and 8, still another embodiment of the present invention provides a mobile energy - conversion-set S, fixedly mounted on the external surface of a mobile object (9) shown only in figure 10 and not shown in figures 7 and 8. The set S comprises a base plate (1), an air - turbine (2), a pulse- width-modulator (PWM) (10), an A.C. electrical generator (5), a rectifier (6), a storage battery (4), wherein all of the components (2), (10), (5), (6) and (4) are fixedly mounted on the base plate (1) and this base plate (1) is fixedly mounted on the external surface of the mobile object (9). A pulse-width-modulator (PWM) (10) is disposed next and adjacent to air-turbine (2). The central shaft of A.C. electrical generator (5) is mechanically and fixedly coupled with the central shaft of the rotor of the air-turbine (2), thereby causing appropriate rotation of parts in A.C. electrical generator (5), which generates A.C. electrical energy thereby producing A.C. electrical current. The A.C. electrical generator (5) is electrically connected to the rectifier (6) which converts the A.C. electrical current into D.C. electrical current. The rectifier (6) is electrically connected to the D.C. electrical storage battery (4), which stores the D.C. electrical energy, supplied by the rectifier (6). The D.C. energy stored in the storage battery (4) can be utilized as and when required. The connections of the components are shown schematically in the figures.

Thus, it will be observed that for converting the inertial energy of the stationary air-mass into the electrical energy, during motion of the train in forward direction, that is, from station A to station B, the air-turbine of the mobile energy- conversion- set mounted on the railway coach should be located near that end of the coach which is nearer to end E-l of the train, where now the railway engine is located, for motion of railway train from station A to station B. Also, for converting the inertial energy of the stationary air - mass into the electrical energy, during motion of the train in reverse direction, that is, from station B to station A, the air-turbine of another mobile energy - conversion - set mounted on the railway coach should be located near that end of the railway coach, which is nearer to end E-2 of the train, where now the railway engine is located, for motion of railway train from station B to station A.

Hence, to achieve these goals of energy - conversion during both of the above- mentioned motions of the train in forward direction and reverse direction on the railway track, the two separate sets of any one embodiment of the present invention of the mobile energy - conversion -sets as shown in figure 1 and figure 2 respectively are used, and both sets of that embodiment of the invention should be mounted adjacently on the top surface of the railway coach, as shown in figure 10. One energy - conversion - set P of figure 1 will achieve energy - conversion, when the train travels in one direction and another energy - conversion-set P of figure 2 will achieve energy conversion, when the train travels in opposite direction. Similar arrangement is made, when each of other three energy- conversion- sets Q, R, and S is used separately. Categories of Mobile Objects

It should be noted that these mobile objects can be grouped in two different functional categories.

The first category includes railway passenger coaches and railway goods wagons travelling in forward direction at one time and then travelling in reverse direction, at other time, on railway tracks. The second category includes buses, trucks, tankers, containers, automobiles, motor-bikes and bicycles etc., travelling forwardly on road surface, because the major part of movements of these mobile objects is in forward direction. Movement of mobile object of first category

The mobile object of the first category runs along railway tracks. When the passenger train or goods train travels from railway station A to railway station B, the railway engine and its driver are at one end E-1 of the train and the guard is at the other end E-2 of the train.

When the train travels from railway station B to railway station A, the railway engine is disconnected from the train-end E-1 and attached at the train-end E-2, when the driver is operating the railway engine. Now the guard is at the other end E-1 of the train.

But during both of abovementioned motions of the train, which is from A to B and from B to A, the directional and sequential placement of all coaches or wagons on the railway track does not change. Only the placement of railway engine is changed from one end E-1 of the train to other end E-2 of the train. While carrying out this change of placement of engine from one end to other end the directional orientation of railway engine is changed, taking a complete U-turn, through 180 degree horizontally.

Thus it is seen that, at a particular time the mobile object can run on the railway tracks in one of two predetermined opposite directions (that is, forward and reverse directions). The placement of a railway passenger coach or a railway goods wagon along with their wheels on the railway tracks remains the same with respect to the railway track, irrespective of direction of motion of coach or wagon on the railway track. If it is desired to produce electrical energy during motion of mobile object in both of these opposite directions, by use of the corresponding separate energy - conversion - set placed in appropriate orientation, then the two energy - conversion - sets (P) shown in figure 1 and figure 2, should be mounted adjacently in respective appropriate orientation on the external surface of the coach or closed wagon [that is object (9)], as shown in figure 10.

The energy-conversion-set P of figure 1 disposed on coach or closed wagon will produce electrical energy, when the coach or closed wagon travels in one direction and the energy -conversion - set P of figure 2 disposed adjacently on the same coach or closed wagon will produce electrical energy, when the coach or wagon travels in opposite direction. Same procedure should be applied when the two respective energy-conversion-sets Q of figures 3 and 4, or the two respective energy-conversion sets R of figures 5 and 6, or the two respective energy conversion- sets S of figures 7 and 8, are used, for energy-conversion for producing electrical energy, as explained earlier.

Movement of Mobile Object of Second Category

When one considers the movement of a mobile object of the second category, travelling on the road surface, it is observed that the directional placement of the mobile object on the road surface is not same, when the travelling action of mobile object in two opposite directions is considered. When the mobile object moves from location A to location B on the road surface, the driver is sitting at the forward end E-l of the mobile object, which is nearer to the location B and the rear end E-2 of the mobile object is nearer to the location A. But for the return journey of the mobile object, that is, when it travels from location B to location A, the mobile object is made to take a complete U-turn through 180° horizontally, so that the forward end E-l of the mobile object is now nearer to the location A and the rear end E2 of the mobile object is nearer to the location B.

As such, if it is desired to produce electrical energy motion of the mobile object of second category along both these opposite directions, that is, from A to B and from B to A, the placement of the mobile energy - conversion-set on the top surface of the mobile object should be such that the air-turbine-end of the energy-conversion- set should always be nearer to the forward end E-l of the mobile object.

Hence any one of the energy - conversion - sets, as per the need, shown in figures 1, 2, 7, or 8 can be used for fixing on external surface of mobile objects of second category, for producing electrical energy.

Use of Inertial Energy of Stationary Air-Mass

Even though, the method of conversion of wind-energy into electrical energy, using wind as renewable energy source, is being utilized world over for many years, this renewable energy source of blowing wind-energy is not available during the time-slots, when wind is not blowing.

However, the inertial energy of the stationary air-mass as used in present invention is, so far, not utilized for generating electrical energy anywhere in the world. As such, this renewable energy source of present invention stands so far totally neglected throughout the world. It appears that nobody ever thought about using this renewable energy source of present invention, for conversion into electrical energy, because nobody has ever thought that this can work as an energy-source for energy conversion. It is only the inventors of the invention of the present patent application who thought of using this particular source as an energy-source for energy-conversion, and developed an energy-conversion-instrument-set for converting the inertial energy of the stationary air-mass into electrical energy.

The description given in present specification provides details of the present invention of "a mobile energy-conversion-set" which utilizes this so-far-neglected renewable energy source of inertial energy of stationary air-mass, for generating the electrical energy.

The present invention will find suitable applications in all developing and developed countries of the world for producing electrical energy, even when the wind is not blowing. Considering the case of developing country like India, it is seen that about 12000 railway services are operated daily by the Indian Railways. There are about 60000 railway coaches running over 1, 14,000 km of Railway Tracks used for operating these services. Similarly 7000 Goods Trains operate daily with the help of thousands of goods wagons. In metro city like Mumbai, about 3000 buses ply daily on roads of Mumbai for City Bus Service. Similar Bus Services are operated in other metro cities of India by using thousands of buses for each city. It is also seen that millions of other vehicles like buses, trucks, automobiles, tankers, auto rickshaws, motorbikes, bicycles ply on all roads of India. Similar situation exists also in other countries of the world. As mentioned above, all of the abovementioned mobile objects travelling on roads can make use of the relevant embodiments of the present invention, for producing electrical energy and storing it in plurality of electrical energy storage batteries. Such millions of batteries can be used as and when and where needed, in urban or rural areas.

Additional Use Of Existing Mobile Objects

One very important point to be noted in connection with the present invention is that, all of these mobile objects mentioned above and travelling on railway tracks and roads are not specially developed with the sole purpose of generating electrical energy with the help of this invention. They are already in existence in the world and are being used with the purpose of transportation of people, animals and goods. Producing electrical energy by mounting the present invention of mobile energy-conversion-sets on these mobile objects can be considered as an important and valuable additional benefit, achieved by using (for producing electrical energy) the already-existing routine motion-activity daily of these mobile objects. This can be considered to be a major achievement of the present invention, as this invention does not need use of any fuel, and does not needs any allocation of costly source of separate land for energy-conversion.

It is clear from the foregoing discussion that the present invention has the following embodiments.

1. A mobile energy-conversion-set mounted on a mobile object enabling said set to be put into motion, comprising:

a. a base plate (1) capably supporting all components of said set, wherein said components comprise: an air-turbine (2) capably converting inertial energy of stationary air-mass located in front of said air-turbine (2), into mechanical energy of rotation of central shaft of rotor;

a pulse-width-modulator (PWM) (10), disposed next to said air-turbine (2); wherein, when said air-turbine (2) is moving forwardly and hence particles of said stationary air-mass are impacting on forwardly located surfaces of rotatable blades of said air-turbine (2) which is in motion, thereby causing rotation of said rotatable blades, which produce mechanical energy of rotation,

a D.C. electric generator (3) capably converting said mechanical energy of rotation into D.C. electrical energy, thereby producing D.C. electric current, or

an A.C. electric generator (5) capably converting said mechanical energy of rotation into A.C. electrical energy, thereby producing A.C. electric current; an electrical -energy- storage-battery (4) for storing D.C. electrical energy, generated by said D.C. electric generator (3),

a rectifier (6) capably converting said A.C. electric current into D.C. electric current to be supplied to said electrical-energy-storage-battery (4), when said A.C. electric generator (5) is used in said set, or an inverter (7) capably converting said D.C. electric current into A.C. electric current when required to be supplied to A.C. grid or A.C. load when said D.C. electric generator (3) is used in said set;

a mobile object (9) on whose body-surface said base plate (1) is fixedly mounted in predetermined appropriate orientation, wherein said orientation enables appropriate rotation of blades of said air turbine (2), when said air turbine (2) is put in motion. A method of producing and supplying electrical energy, even when wind is not blowing, comprising the steps of:

a. mounting fixedly said mobile energy-conversion-set of embodiment 1 on external surface of said mobile object (9) in predetermined appropriate orientation, said orientation being provided as in step (g) of embodiment 1; b. moving said mobile object (9) on tracks or on road surface, so that rotatable blades of said air-turbine (2) rotate, thereby developing mechanical energy of rotation;

c. supplying developed mechanical energy of rotation to central rotatable shaft of said D.C. electric generator (3) or of said A.C. electric generator (5); d. enabling generation of D.C. electrical energy by rotation of appropriate parts of said D.C. electrical generator (3), or generation of A.C. electrical energy by rotation of appropriate parts of said A.C. electrical generator (5); and e. supplying the produced D.C. electrical energy to said electrical-energy- storage-b artery (4) or the produced A.C. electrical energy to A.C. supply- grid or to A.C. load.

While the above description contains much specificity, these should not be construed as limitation in the scope of the invention, but rather as an exemplification of the preferred embodiments thereof. It must be realized that modifications and variations are possible based on the disclosure given above without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be determined not by the embodiments illustrated, but by the appended claims and their legal equivalents.

Claims

A mobile energy-conversion-set mounted on a mobile object enabling said set to be put into motion, comprising:

a. a base plate (1) capably supporting all components of said set, wherein said components comprise:

b. an air-turbine (2) capably converting inertial energy of stationary air-mass located in front of said air-turbine (2), into mechanical energy of rotation of central shaft of rotor;

c. a pulse-width-modulator (PWM) (10), disposed next to said air-turbine (2); wherein, when said air-turbine (2) is moving forwardly and hence particles of said stationary air-mass are impacting on forwardly located surfaces of rotatable blades of said air-turbine (2) which is in motion, thereby causing rotation of said rotatable blades, which produce mechanical energy of rotation,

d. a D.C. electric generator (3) capably converting said mechanical energy of rotation into D.C. electrical energy, thereby producing D.C. electric current, or

an A.C. electric generator (5) capably converting said mechanical energy of rotation into A.C. electrical energy, thereby producing A.C. electric current; e. an electrical -energy- storage-battery (4) for storing D.C. electrical energy, generated by said D.C. electric generator (3),

f. a rectifier (6) capably converting said A.C. electric current into D.C. electric current to be supplied to said electrical-energy-storage-battery (4), when said A.C. electric generator (5) is used in said set, or an inverter (7) capably converting said D.C. electric current into A.C. electric current when required to be supplied to A.C. grid or A.C. load when said D.C. electric generator (3) is used in said set;

g. a mobile object (9) on whose body-surface said base plate (1) is fixedly mounted in predetermined appropriate orientation, wherein said orientation enables appropriate rotation of blades of said air turbine (2), when said air turbine (2) is put in motion.

A method of producing and supplying electrical energy, even when wind is not blowing, comprising the steps of:

a. mounting fixedly said mobile energy-conversion-set of claim 1 on external surface of said mobile object (9) in predetermined appropriate orientation, said orientation being provided as in step (g) of claim 1;

b. moving said mobile object (9) on tracks or on road surface, so that rotatable blades of said air-turbine (2) rotate, thereby developing mechanical energy of rotation;

c. supplying developed mechanical energy of rotation to central rotatable shaft of said D.C. electric generator (3) or of said A.C. electric generator (5); d. enabling generation of D.C. electrical energy by rotation of appropriate parts of said D.C. electrical generator (3), or generation of A.C. electrical energy by rotation of appropriate parts of said A.C. electrical generator (5); and e. supplying the produced D.C. electrical energy to said electrical-energy- storage-b artery (4) or the produced A.C. electrical energy to A.C. supply- grid or to A.C. load.