To Optimize the Design of a Magnetic Motor Chandana M1, Charan N2, Dikshith Gowda R3, Kiran R4, M
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ISSN (Online) 2581-9429 IJAR ST International Journal of Advanced Research in Science & Technology (IJARST) Volume 7, Issue 4, July 2020 To Optimize the Design of a Magnetic Motor Chandana M1, Charan N2, Dikshith Gowda R3, Kiran R4, M. J. Chandrashekar5 UG Students, Department of Electrical and Electronics Engineering1,2,3,4 Associate Professor, Department of Electrical and Electronics Engineering5 SJB Institute of Technology, Bangalore, Karnataka [email protected], [email protected], [email protected] [email protected] and [email protected] Abstract: The main objective of this work is to study the free energy permanent magnet motor, where the natural repulsion or attraction characteristics of magnet poles creates a perpetual motion which can be harnessed by the magnet motor. The essential idea of this work has started by taking advantages of permanent magnet properties in these machines when replacing electric coils by permanent magnets, to build a free energy magnetic motor. The design of rotor drum plays a vital role in these magnetic motor where the magnetic field and repelling force is when the magnets is separated by a definite distance is considered. The simulation is done using a matlab software where the electrical parameters are simulated using the magnet properties and electrical equations. The materials were selected according to the characteristics and influencing factor such as temperature, weight and stored energy. The permanent magnets have invisible and continuous power where it can attract the iron or other specific kind of metal with the energy flow which allows the permanent magnet to defy the gravity for years. Therefore, it is believed that the free energy can be extracted from the permanents magnets by arranging the magnets in special configuration. Keywords: Attraction, Flux Density, Free Energy, Permanent Magnet Motor & Repulsion I. INTRODUCTION Natural resources are commonly divided between renewable resources and non-renewable resources use of either of these former of resources beyond their rate of replacement is considered to be resources depletion. The value of resources is direct result of it availability in nature and the cost of extracting the resources, the more a resources is depleted the more value of the resources increases. These are several types of resources depletion the most known being; Aquifer depletion, deforestation, mining for fossil fuels and minerals. Pollution, flash and burn agriculture practice, soil erosion, and overconsumption, exercise or unnecessary use of resources. All energy sources have some impact on our environment fossil fuels -Coal, oil and natural gas- do substantially more harm than renewable energy source by most measure, including air and water measure, including air and water measures, including air and water pollution, damage to public health wildlife and habitat loss, water use, land use and global warming emissions. II. PRINCIPLE OF ENERGY A free energy magnet motor uses its natural properties such as attraction and repulsion of the magnet poles to create a perpetual motion which can be harnessed to do a useful work. The permanent magnets have invisible and continuous power where it can attract the iron or another specific kind of metal with the energy flow which allows the permanent magnet to defy the gravity for years. Therefore, it is believed that the free energy can be extracted from the permanent magnets by arranging the magnets in a special configuration. Similar to the solar panel does not put effort into producing. Magnet Engine free energy generator is an easy device to generate electrical energy. It works on the principle of Neodymium Magnets. In a simple motor, magnetic field is created by the electric coils generally Cu, Al coils. These motors continuously need electrical supply to produce magnetic field. There is huge amount of energy losses. But the Magnet Motor Consists of no such coils. Hence there will be minimal losses. It uses the permanent magnetic field of the magnets to generate the required force to move the motor. This concept of generating magnetic field from the permanent magnets became practical only after introducing Neodymium magnets Copyright to IJARST DOI: XX.072020/IJARST 106 www.ijarsct.co.in ISSN (Online) 2581-9429 IJAR ST International Journal of Advanced Research in Science & Technology (IJARST) Volume 7, Issue 4, July 2020 which are much power full than the previous Ferrite magnets. The main advantage is that it does not require continuous electric supply. III. DESIGN OF MAGNETIC MOTOR The basic idea of designing a magnetic motor is by considering the 2 basic concepts. One the principle of magnets that is when two magnets are placed with their like poles facing each other, the lines of force are in opposite directions and hence like poles repel each other. When the unlike poles of a bar magnet face each other the magnetic lines of force are in the same direction and hence unlike poles attract each other, and the other is by considering the pull force created by the repulsion effect. A. Design of A Rotor Drum The whole rotor drum circumference is 292.5 mm where the magnets are placed. To design the way in which the magnets are placed on circumference of nylon drum the whole circumference of nylon drum is divided into 3 section each of 85 mm and a spacing of 12.5 mm between each section. Figure 1: Design of single section of rotor drum The magnetic field strength at the midpoint of a horizontally placed magnet that is at 32.5 mm horizontally is calculated using a K&J magnetic field calculator is 116.4 gauss at an angle of 180.2 degree as shown in fig. 2 There are 2 compensating magnets used to compensate magnetic field strength as well as to improve the repelling force. Figure 2: Magnetic field strength at the midpoint of horizontal placed magnets Copyright to IJARST DOI: XX.072020/IJARST 107 www.ijarsct.co.in ISSN (Online) 2581-9429 IJAR ST International Journal of Advanced Research in Science & Technology (IJARST) Volume 7, Issue 4, July 2020 As magnets are separated by a few distance of millimeter the magnetic field lines of one magnet and another magnet coincide due to which the magnetic field strength also increases, so at the midpoint of magnet placed in any direction is twice the calculated value. The magnitude of magnetic field strength at the midpoint of two magnets considering any of the two magnets magnetic field coinciding with each other is calculated and tabulated in the table 1 below Table I: Magnetic Field Strength Between the Magnets Considered (Between 2 Magnets) Considering the point that the magnets are placed so closely due to which a magnetic field strength in the rotor increases considering the point where the three or more magnets magnetic field lines coincide its field strength is calculated and tabulated in table 2. Table II: Magnetic Field Strength Between the Magnets Considered (Between 3 Magnets) B. Design of Stator Part At stator we have used a linear actuator to trigger the movement initially and during the rotation of rotor it creates the repelling force constantly within the rotor magnet and the stator magnet, so the rotor does not stop rotating at any point. Neodymium magnet of length 120 mm, width of 15 mm and thickness of 4 mm ND 52 grade magnet is used, and it is fitted to the moving part of the linear actuator. Where its moving stroke varies from minimum of 3 mm and maximum of 10 mm. There will be difference in repelling force due to the change in distance between the rotor magnets and stator magnet. Table 3 shows the repelling force between the magnets is calculated using the K&J repelling force calculator and its graphical representation is shown in fig. 3. Copyright to IJARST DOI: XX.072020/IJARST 108 www.ijarsct.co.in ISSN (Online) 2581-9429 IJAR ST International Journal of Advanced Research in Science & Technology (IJARST) Volume 7, Issue 4, July 2020 TABLE III: Repelling force between the magnets Figure 3: Plot of repelling force v/s distance between magnets As the linear actuator moves with its minimum movement stroke is 3mm and maximum of 10mm the torque also varies. The torque values are calculated and tabulated in the table 4.4. Force in newton Torque in newton meter 98.97 4.60 87.80 4.08 70.72 3.29 58.18 2.70 48.57 2.26 40.96 1.90 34.82 1.62 29.84 1.38 25.71 1.19 22.24 1.03 Table IV: Torque value corresponding to the force IV. SIMULATION OF MAGNETIC MOTOR The design details of magnetic motor are used in simulation and only the rotor section is used to simulate the model and corresponding output value have been noted down. The values of theta its corresponding flux, voltage and current Copyright to IJARST DOI: XX.072020/IJARST 109 www.ijarsct.co.in ISSN (Online) 2581-9429 IJAR ST International Journal of Advanced Research in Science & Technology (IJARST) Volume 7, Issue 4, July 2020 have been calculated using the mat lab Simulink model. The fig. 4 below shows the overall mat lab Simulink model of the magnetic motor. Figure 4: Overall matlab Simulink model of magnetic motor A. Operation of Simulink Calculation of theta involves conversion of radians to degree and a discrete time integration function block and modulus math function. Consider 100 radians as a constant and then convert these 100 radians into degrees by using the formula 180/pi using a gain function block. The gain block multiples the input by a constant value in an element wise multiplication method. The magnetic flux through some surface is proportional to the number of field lines passing through that surface.