US20080088200A1 - Poly-phasic multi-coil generator - Google Patents

Poly-phasic multi-coil generator Download PDF

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Publication number
US20080088200A1
US20080088200A1 US11/760,704 US76070407A US2008088200A1 US 20080088200 A1 US20080088200 A1 US 20080088200A1 US 76070407 A US76070407 A US 76070407A US 2008088200 A1 US2008088200 A1 US 2008088200A1
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US
United States
Prior art keywords
rotor
stator
magnets
driveshaft
array
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/760,704
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English (en)
Inventor
Jonathan Ritchey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US11/760,704 priority Critical patent/US20080088200A1/en
Publication of US20080088200A1 publication Critical patent/US20080088200A1/en
Priority to US12/582,655 priority patent/US8106563B2/en
Priority to US13/336,727 priority patent/US20120153757A1/en
Priority to US13/899,420 priority patent/US20130249502A1/en
Priority to US14/185,525 priority patent/US9584056B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/02—Details of the control

Definitions

  • the applicant is aware of industry's attempts to create a generator with more than one “sweet spot”.
  • the WindMatic systems http://www.solardyne.com/win15swinfar.html
  • utilize two separate generators in an attempt to capture a broader range of wind speeds. While this dual generator design does prove to broaden the band of operation, the overall output for a given weight would be lower than the disclosed Poly-Phasic Multi-Coil Generator (PPMCG).
  • PPMCG essentially combines a multitude of generators (18 for example) in a single unit rather than requiring two separate generators to allow only two separate sweet spots.
  • these two generator systems are combined and controlled through additional gearing and hardware. Therefore, the design utilizing two separate generators would have additional construction/material costs as well as additional maintenance costs over the PPMCG design.
  • gearbox losses up to 5% of total output.
  • gearbox represents a costly and high maintenance component often weighing as much as the generator component.
  • the gearbox is a weak link in the generator system that adds unwanted weight, cost, and reduces overall efficiency of the system.
  • the PPMCG output can be modified to accommodate constantly changing source energy “or” constantly changing energy consumption. For example, when energy demand is low at night, the PPMCG system will simply disengage un-necessary stages. This will be particularly advantageous to Hydro systems that are challenged to adapt to changing energy demands.
  • a coil would just have to be wrapped around the backing plates for the permanent magnets creating a permanent magnet augmented with an electromagnet.
  • Such a design could provide an even more powerful PPMCG also providing even more control over the output of the PPMCG, since the hybrid coils could be used as a fine control of the magnetic field and thus the output of the PPMCG.
  • FIG. 1 is, in front perspective view, a further embodiment of the polyphasic multi-coil generator according to the present invention illustrating by way of example nine rotor and stator pairs wherein the nine pairs are grouped into three stages having three rotor and stator pairs within each stage, the radially spaced arrays of magnets on each successive rotor within a single stage staggered so as to be angularly offset with respect to each other;
  • FIG. 16 is, a partial cross sectional view of a front perspective of an alternate embodiment of the generator if FIG. 1 utilizing double sided rotors and stators;
  • FIG. 17 is, a front perspective view of a one embodiment of a single hybrid permanent magnet which will also act as an electromagnet.
  • FIGS. 1-9 A further embodiment of the invention is illustrated in FIGS. 1-9 , again wherein similar characters of reference denote corresponding parts in each view.
  • nine banks of rotors 34 each have radially spaced apart arrays of magnet pairs 36 a and 36 b wherein the arrays are angularly displaced or staggered relative to adjacent arrays on adjacent rotors.
  • each magnet pair 36 a and 36 b in the equally radially spaced array of magnet pairs 36 a and 36 b , radially spaced about axis of rotation B are angularly offset by the same offset angle ⁇ , for example, five degrees, ten degrees or fifteen degrees, between adjacent rotors.
  • Magnets 36 a and 36 b are mounted onto a carrier plate 44 .
  • the carrier plate 44 for each rotor 34 is rigidly mounted onto driveshaft 18 .
  • Coils 40 and their corresponding cores 42 are mounted onto a stator plate 48 .
  • Stator plate 48 is rigidly mounted to housing 56 , which itself may be mounted down onto a base or floor by means of rigid supports (not shown).
  • each of the first set and second set of induction coils 40 have an equal number of induction coils 40 wrapped around their cores 42 in a first direction and an equal number of induction coils 40 wrapped around their cores 42 in an opposite second direction to align the currents of the two phases.
  • the stators 38 include sixteen, that is, two sets of eight induction coils 40 (alternate phases)
  • each of the first set of eight induction coils 40 will produce a first independent phase signal and the second set of eight induction coils 40 will produce a second independent phase signal.
  • the rotor arrays between successive rotors 34 in stage 58 are angularly offset about the axis of rotation B of the driveshaft by an offset angle ⁇ of for example fifteen degrees. It is understood that an offset of fifteen degrees is merely one preferred offset, but it may be any number of degrees of offset. Offset angle ⁇ is seen best in FIG. 4 a as the angle between the radial axes 60 and 60 ′ of magnets 36 a and 36 a ′ of successive rotors 34 .
  • the rotor arrays may be appropriately angularly offset as described above.
  • the induction coils may be angled such that the rotor arrays are not perfectly aligned in parallel to each other.
  • magnets (not shown) on rotors 78 on either side of the stator arrays 80 are preferably misaligned too as the magnetic influence from the magnets should induce each of the induction coils from both ends simultaneously for optimum function.
  • the misalignment of rotor arrays is increasingly smaller, becoming negligible as more stages are added.
  • the optimum number of stages may be determined by the degrees of offset of each stage relative to the previous stage.
  • the number of induction coils in the stator arrays need not depend on the corresponding number of magnets in the rotor arrays.
  • the stator arrays may include any number of induction coils and they may or may not be symmetrical in their placement about the stators.
  • additional stages may increase is size and diameter so as to create greater physical resistance when greater wind energy is present but as well to create more electrical output from the system when input energy is high.
  • the generator may thus still allow for rotor 30 to rotate as it will engage only one, that is the first stage of the generator.
  • the generator may engage additional stages, thus increasing the output current.
  • more stages may be added or engaged to allow for the maximum current to be drawn off the generator.
  • the generator may disengage the additional stages and thus reduce mechanical resistance, allowing the blades of the wind turbine or other wind driven mechanism to continue to turn regardless of how much wind is present above a low threshold. This generator configuration allows for maximized energy collection.
  • One embodiment would have a circuit designed to assess the relevant information about the device such as load information in order to determine and employ the optimal number of stages of a multi-sage generator apparatus.
  • the device could have a circuit designed to assess the relevant prime-mover information in order to determine and employ the optimal number of stages of the generator apparatus, or a circuit designed to assess the relevant prime-mover and load information in order to determine and employ the optimal number of stages of the generator or a circuit wherein each stage is monitored and when deemed appropriate, additional stages are added, or removed, by the control system, and where the engagement or disengagement of these multiple stages is determined by the availability of the energy source and/or the current operating condition of existing generator stages or independent coils as part of a stage.
  • the generator device can also have an apparatus comprising an algorithmic microprocessor connected to a high speed semiconductor switching system designed to match source with load through the engaging, or disengaging, electrical circuits. It can utilizing a pulse wave modulator or similar device in order to offer fine control in smoothing out the transition of generator stages as they are added or removed electrically from the system.
  • the above apparatus incorporating appropriate conditioning electronics, such as filters, between the semiconductor switching system and the grid to ensure the signal is appropriate for grid integration.
  • the generator will have a system whereas the electronics of the system are capable of checking the integrity of individual coils or series of coils, that represent a single stage, prior to engagement of the stage being accomplished through the creation of a fault current by the system that checks to ensure the integrity of each stage prior to its engagement.
  • the system can have processing circuitry that where as a fault occurs in a coil winding, it is treated as an isolated fault by the processing circuitry.
  • the generator through various fault detection means and whereas said fault occurrence is isolated by the system and avoided by the system through leaving its circuit open and thus out of the collective output signal.
  • a stage can represent a single coil or a multitude of coils as is determined by the desired output.
  • the coils may be connected in parallel or series thus creating as many phases in the output signal as is desired.
  • the staging may be accomplished with the coils of a single disk being of equidistant spacing in a radially spaced array, or, an apparatus where stages may be unsymmetrical in spacing as is seen in FIG. 12 .
  • FIGS. 14 to 16 illustrate the parts of yet another alternate design embodiment, focussed on reducing manufacturing costs by utilizing both sides of the stator plate 38 and armature carrier plate 44 to hold the induction coils and magnets in place. It can be seen that with the exception of the armature assemblies at either end of the generator, this design employs both sides of both the stator and armature to house magnets and induction coils thus reducing manufacturing costs. As well, this design will assist in balancing out the bending force on the armature and stator plates by offsetting the force on one side of the plate, with the force being created on the other side of the plate.
  • FIG. 16 illustrates a generator section with 4 stator arrays having removed a cross section of the upper right quadrant.
  • the induction coil cores 42 are mounted on the stator plates 38 and are tightly packed between the armature plates 44 . Wires from each coil will pass through a hole in the stator plate 38 and may be housed in a channel on the outer edge of the plate. Wires may come together at the controller mounting brackets 85 that will direct the wiring into the circuit box.
  • the armature having an inner and outer magnetic assembly in a non-symmetrical fashion so as to allow for a multitude of phases to be created from a single armature interacting with a single stator array and where the desired force balancing effect is still accomplished as is done with three armatures or stators offset to balance out forces.
  • the generator will have an inner and outer magnets that may, or may not be, of similar size and where either inner or outer magnet may be replaced with a ferromagnetic material or an electromagnet rather than utilizing a permanent magnet.
  • the above closed flux path apparatus utilizing electromagnets for inner or outer magnets, or both and may utilize hybrid magnets for inner or outer magnets, or both. Any combination of permanent magnets, electromagnets, or ferromagnetic materials may be used to complete the flux path in this embodiment.
  • the generator can set up to be capable of selecting various combinations for coils to create various output voltages where the pins or other electrical contacts may be disposed around the casing in a manner that allows the selection of various operating voltages for application when the apparatus is operating as either a motor or generator accomplished by connecting adjacent terminal layers in a selected orientation with respect to each other and where the orientation of coil contacts may be selected, such as to allow the operator to determine the resultant voltage being created if it is acting as a generator, or the appropriate input voltage, if it is acting as a motor (for example, the machine may run at 120 volts, 240 volts or 480 volts or offer an output of 120 volts, 240 volts, or 480 volts).
  • the unique disclosed generator offers a multi-stage power generation system designed to match generator resistance to source energy through electronically adding, or dropping, generator stages as input energy and load vary.
  • a single stage can be just one coil or for three phase output, three coils; one from each array in a three stator array arrangement for example. Additional benefits for the proposed generator systems are numerous and include reduced mechanical energy loss and a reduced requirement for conventional signal processing electronics.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Control Of Eletrric Generators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
US11/760,704 2006-06-08 2007-06-08 Poly-phasic multi-coil generator Abandoned US20080088200A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/760,704 US20080088200A1 (en) 2006-06-08 2007-06-08 Poly-phasic multi-coil generator
US12/582,655 US8106563B2 (en) 2006-06-08 2009-10-20 Polyphasic multi-coil electric device
US13/336,727 US20120153757A1 (en) 2006-06-08 2011-12-23 Polyphasic multi-coil electric device
US13/899,420 US20130249502A1 (en) 2006-06-08 2013-05-21 Polyphasic multi-coil generator
US14/185,525 US9584056B2 (en) 2006-06-08 2014-02-20 Polyphasic multi-coil generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80427906P 2006-06-08 2006-06-08
US11/760,704 US20080088200A1 (en) 2006-06-08 2007-06-08 Poly-phasic multi-coil generator

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US80427906P Continuation 2006-06-08 2006-06-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/582,655 Continuation US8106563B2 (en) 2006-06-08 2009-10-20 Polyphasic multi-coil electric device

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US20080088200A1 true US20080088200A1 (en) 2008-04-17

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Family Applications (5)

Application Number Title Priority Date Filing Date
US11/760,704 Abandoned US20080088200A1 (en) 2006-06-08 2007-06-08 Poly-phasic multi-coil generator
US12/582,655 Active US8106563B2 (en) 2006-06-08 2009-10-20 Polyphasic multi-coil electric device
US13/336,727 Abandoned US20120153757A1 (en) 2006-06-08 2011-12-23 Polyphasic multi-coil electric device
US13/899,420 Abandoned US20130249502A1 (en) 2006-06-08 2013-05-21 Polyphasic multi-coil generator
US14/185,525 Active 2028-02-13 US9584056B2 (en) 2006-06-08 2014-02-20 Polyphasic multi-coil generator

Family Applications After (4)

Application Number Title Priority Date Filing Date
US12/582,655 Active US8106563B2 (en) 2006-06-08 2009-10-20 Polyphasic multi-coil electric device
US13/336,727 Abandoned US20120153757A1 (en) 2006-06-08 2011-12-23 Polyphasic multi-coil electric device
US13/899,420 Abandoned US20130249502A1 (en) 2006-06-08 2013-05-21 Polyphasic multi-coil generator
US14/185,525 Active 2028-02-13 US9584056B2 (en) 2006-06-08 2014-02-20 Polyphasic multi-coil generator

Country Status (10)

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US (5) US20080088200A1 (enExample)
EP (1) EP2033299A4 (enExample)
JP (1) JP2009540776A (enExample)
KR (1) KR101484980B1 (enExample)
CN (2) CN101501963B (enExample)
AU (1) AU2007257187A1 (enExample)
BR (1) BRPI0713121A2 (enExample)
CA (1) CA2654462A1 (enExample)
EA (2) EA201200033A1 (enExample)
WO (1) WO2007140624A1 (enExample)

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EP2033299A4 (en) 2017-02-22
US20140167708A1 (en) 2014-06-19
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US20130249502A1 (en) 2013-09-26
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US20100090553A1 (en) 2010-04-15
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CN101501963B (zh) 2012-06-13
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CA2654462A1 (en) 2007-12-13

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