AU2008200488B2 - Generator with de-saturation winding - Google Patents
Generator with de-saturation winding Download PDFInfo
- Publication number
- AU2008200488B2 AU2008200488B2 AU2008200488A AU2008200488A AU2008200488B2 AU 2008200488 B2 AU2008200488 B2 AU 2008200488B2 AU 2008200488 A AU2008200488 A AU 2008200488A AU 2008200488 A AU2008200488 A AU 2008200488A AU 2008200488 B2 AU2008200488 B2 AU 2008200488B2
- Authority
- AU
- Australia
- Prior art keywords
- additional
- winding
- desaturating
- windings
- main
- 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.)
- Ceased
Links
Description
I
Australian Patents Act 1990 Regulation 3.2 ORIGINAL COMPLETE SPECIFICATION STANDARD PATENT Invention Title "Generator with de-saturation winding" The following statement is a full description of this invention, including the best method of performing it known to me/us:- Q \OERSPM\2OO8\.3478548 divdoc
I
P: OPER\DBW\3047548 di .doc. 1022008 00 -1-
SFIELD
The present invention relates to single and three phase electric generators.
00 BACKGROUND 00 It is generally known for single phase alternating current electric machines to be used from a relatively small size, from fractional horse power up to approximately ten horsepower and 00 0thereafter three phase machines are generally used up to very large applications.
In U.S. Patent Number 4,446,416A to Cravens L. Wanlass, granted May 1, 1984, entitled "Polyphase Electric Machine Having Controlled Magnetic Flux Density" being either a motor or a generator, there is provided a stator core having main windings and additional control windings. The flux density is optimized in a polyphase machine by controlling the flux density in the stator core.
A main polyphase stator winding is wound on a magnetic core, the winding comprising a plurality of windings and each winding represents a single phase. Capacitors are connected with each of the windings in a series circuit.
The present invention is quite distinct and clearly stated in the description.
An additional machine winding technique is also known from the specification of German Patent Application No. 2508374 with a publication date of 09-09-1976 and titled "Single Phase Induction Motor" to Wen, Hung-Ying. This patent application discloses only an induction ofa single phase motor with two start windings so as to increase the start capacitor voltage. It also establishes a single phase induction motor with two sets of start windings, with better running power factor and improved starting torque.
SUMMARY
The present invention provides a single phase electric generator winding, comprising: a main winding having a predetermined number of turns; an additional, destaurating winding being reversely connected relative to said main winding so that current flows in a first direction through said main winding and in a second P:\OPER\DBW3047548 divdoc- 1/021200 00 -2direction through said additional, desaturating winding, said second direction being opposite to said first direction; a capacitor electrically connected in series with said additional, desaturating 00 winding; said capacitor and said additional, desaturating winding electrically connected in Sparallel with said main winding; and 0 0 said main winding formed of a conductor having a first predetermined cross-section Sand said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in series; an additional, desaturating winding having two half sections connected to one another in series; a capacitor connected in series to said two half sections; said additional, desaturating winding and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third P.OPERIDBVW30478548 divdo- 1/022008 00 -3- The present invention also provides a single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in 00 00 parallel; an additional, desaturating winding having two half sections connected to one 0 another in series; 0 0 a capacitor connected in series to said two additional, desaturating winding half Ssections; said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third (1/3) The present invention also provides a single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in parallel; an additional, desaturating winding having two half sections connected to one another in parallel; a capacitor connected in series to said two additional, desaturating winding half sections; said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; A- P OPERX8WD3O3478548 di.dom-IO2/02008 00 -4each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction 00 relative to current flowing through said half sections of said main winding; 00 5 said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second 0 predetermined cross-section; Ssaid first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in series; an additional desaturating winding having two half sections connected to one another in parallel; a capacitor connected in series to said two additional, desaturating winding half sections; said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third P: OPER\DBW30478548 di d-.I1/02I20C 00 SThe present invention also provides a delta-wound three phase generator, comprising: a first, second, and third main winding connected to one another in delta configuration; 00 a first, second, and third additional, desaturating winding connected to one another 00 in delta configuration, Ssaid first, second and third main and additional, desaturating windings being 00 physically superposed in nested relation to one another; Ssaid first, second, and third additional, desaturating windings respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction.
a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings so that each additional, desaturating winding is fed current at a different phase than the current fed to said first, second, and third main windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a star-wound three phase generator, comprising: a first, second, and third main winding connected to one another in star configuration; a first, second, and third additional, desaturating winding connected to one another in star configuration; said first, second and third main and additional, dsaturating windings being physically superposed in nested relation to one another; P:OPER\DBW\30478545 di do.- l1/02/2008 00 -6- Ssaid first, second, and third additional, desaturating windings respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows 00 in a first direction and current flowing through sad first, second, and third additional, 00 desaturating windings flows in a second direction opposite to said first direction.
a first, second, and third capacitor respectively connected in series relation to said 00 first, second, and third additional, desaturating windings so that each additional winding is Sfed current at a different phase than the current fed to said first, second, and third main windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a delta-wound three phase generator, comprising: first, second, and third main windings electrically connected to one another in delta configuration first, second, and third additional, desaturating windings electrically and mechanically connected to one another in delta configuration; said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional desaturating windings being nested within the delta configuration of said first, second, and third main windings; said first, second, and third additional, desaturating windings being respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction; P: PER\DRW)30478548 divdoc-.1/02/208 00 -7- Sa first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and said main winding formed of a conductor having a first predetermined cross-section 00 and said additional, desaturating winding formed of a conductor having a second 00 predetermined cross-section; Ssaid first and second predetermined cross-sections being related to one another by a 00 ratio; Ssaid ratio being about two-thirds to one-third The present invention also provides a delta-wound three phase generator, comprising: first, second, and third main windings electrically and mechanically connected to one another in delta configuration; first, second, and third additional, desaturating windings electrically connected to one another in star configuration said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional, desaturating windings being respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through said first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction; a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a star-wound three phase generator, comprising: P:PER\DBW30471545 divdoc-.I1/0220S 00 -8- Sfirst, second, and third main windings electrically connected to one another in star configuration, first, second, and third additional, desaturating windings electrically connected to 00 one another in delta configuration; 00 said first, second and third main and additional, desaturating windings being Sphysically superposed in nested relation to one another; 00 said first, second, and third additional, desaturating windings being respectively Sconnected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction; a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third The present invention also provides a delta-wound three phase generator, comprising: first, second, and third main windings electrically connected to one another in delta configuration; first, second, and third additional, desaturating windings electrically connected to one another in delta configuration; said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional, desaturating windings being respectively connected in parallel and reversely connected relation to said second, third, and first main windings so that current flowing through said first, second and third main windings flows P:OPERSPMO\20200488 Is spa doc-16&1/200 00 O-9- O in a first direction and current flowing through said second, third, and first additional, desaturating windings flows in a second direction opposite to said first direction; 00 a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings so that each additional, Sdesaturating winding is fed current at a different phase than the current fed to said first, 00 Ssecond, and third main windings so that a one hundred twenty degree (1200) phase shift is Sachieved; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third BRIEF DESCRIPTION OF THE DRAWINGS Preferred embodiments of the invention are described hereinafter by way of example only, with reference to the accompanying drawings in which: FIG. 1 depicts a known single phase electric machine; FIG. 2 depicts a known three phase delta configuration machine; FIG. 3 shows a known three phase delta configuration electric machine; FIG. 4 shows a modified known single phase electric machine; FIG. 5 depicts a modified known delta configuration of an electric machine; PAOPER\DBW30473548 div.dc-I1/0200S 00 SFIG. 6 shows a modified known star configuration of an electric machine; FIG. 7 shows known winding interval connections of electric machines; FIG. 8 depicts, according to the present invention, a single phase electric machine; 00 FIG. 9 shows, according to an embodiment of the present invention, a three phase electric 00 machine on a delta configuration; shows, according to an embodiment of the present invention, on a star 00 configuration a three phase electric machine; and SFIG. 11, according to an embodiment of the present invention, shows winding interval connections of a four poles on delta adjacent poles, three phase electric machine.
DESCRIPTION OF THE PREFERRED EMBODIMENT The electric machine technology background of known designs is established in Figures 1 through 7.
Figure 1 shows a known single phase machine with a run winding a start window and a run capacitor Like reference numerals in the different known designs of Figures 1 through 7, as well as those depicted in the inventive features of Figures 8 through 11 are used to provide a comparative study between known features and those inventive steps, according to the present invention.
In Figure 1, the known technology explains the limited efficiency by the saturation level of the wire size that is used for the electric motor and generator construction.
Figures 2 and 3 show the conventional three phase machine and the windings are indicated by the reference numbers and with the incoming line voltage of the three phase are indicated as and with the center point of the star connection as P:OPER\DBW30478548 di do- 1/02J2008 00 -11- SIn known three phase electric motors and generators, the construction uses a specific number of poles, on the basis of required speed, and the star or delta configuration internally connected as required for the purpose of torque, horsepower and voltage.
00 00 In both single phase and three phase electric machines, heat losses affected by temperature Slosses are generally moderated by different standards of commonly available insulation.
00 SIt is also known to provide improvements in single phase electric machines, by providing a start capacitor in series with a centrifugal switch or a disconnecting relay when added to the start winding circuit. An accurate calculation of the run capacitor sizes in Micro Farads optimizes the efficiency of the electric machine enhancing starting torque, starting current and running temperatures.
Figure 4 is a further design of a single phase electric machine, in which are shown the run winding the start winding the start capacitor the centrifugal switch or disconnecting relay and the run capacitor Figure 5 shows a three phase electric machine, an additional winding provided and fed through capacitors and parallel connected to the main winding. This figure illustrates a delta configuration. The three main windings are and and the three additional windings are and The additional winding capacitors are and and the three phase line voltage connections are and Figure 6 illustrates a star configuration, with the three main windings and and the three additional windings and The additional winding capacitors and the three phases line voltage connections and and the center point of the stars are for the main winding (OP) and for the additional winding (OS).
Figure 7 depicts winding interval connections and shows a four poles one delta adjacent poles, three phase winding and the internal connections of the main and additional windings.
P OPERfBW30,47548 di,.doc-IO2/2008 00 -12- The connection point for the in line is marked for the main winding and for the additional winding. The in line is marked for the main winding and for the 00 additional winding. The in line is marked for the main winding and for the 00 additional winding. The additional winding capacitors are marked and O Observing the respective delta connection on each main and additional winding, there is a 00 physical unbalanced pattern. Delta connection is totally uneven in relation with delta connections and Delta connection is totally uneven in relation with delta connection and This physical unbalance affects phase angle slip between the two windings in relation to the rotation direction (clockwise or counterclockwise) of the rotor. This type of winding internal connection affects energy savings in one rotation direction.
Processing the above technology on a conventional three phase electric machine achieves the following: Increase of overall copper density by about Separation of the conventional winding into two separate windings following the ratio of 'V2.; Conversion of the conventional winding into a lap layout adjacent poles connected (Consequent poles type windings cannot be used); Conversion of the conventional winding connections into a delta configuration respecting the original number of circuits; Calculation of the additional winding capacitor rating in Micro Farads; Formula: C (P x (460)2 x 2 C is the capacitor value in microfarads per phase; P is the electric machine theoretical rated horse power; is a multiplying factor derived from the research experiments; 460 is a constant base voltage; and E is the line voltage of the machine.
PAOPERSPMVD0820G48 St Spido-I6IflOOS 00 -13- O This formula does not allow us to accurately calculate the optimum capacitor value, not taking in consideration the actual field working under load parameters of the machine. So even though these types of electric machines run at a better power factor and do save some energy, 00 they are a lesser quality product, with a shorter life term, and they can be improved.
00 SFigure 8 depicts a single phase electric machine. The main winding is shown in two half 0 sections (la) and (lb) separated by a middle point The additional winding also shows two Shalf sections (5a) and (5b) separated by a capacitor The start winding the start capacitor and the centrifugal switch or the disconnecting relay are also shown. The single phase electric machine depicts an additional winding that parallel connected with the main winding. Each of the half sections are in opposite field directions with each other and connected at the center point to a capacitor. The center point of the main winding is used for dual voltage purpose.
Figure 9 shows a three phase electric machine connected in a delta configuration. The main windings arc denoted and the additional windings are denoted and and the additional winding capacitors are denoted and The delta connection points of the three main windings are and The incoming line voltages connection points are RA, SA, and TA. Each additional winding is fed from a different phase than its respective main winding and is reverse connected relative to its associated main winding so that the respective fields of the main and additional windings are opposed to one another. The value (capacitance) of the additional winding capacitor is predetermined. R and RA are one and the same phase. Similarly, S and SA are one and the same phase, as are T and TA. The references RA, SA, and TA indicate the inline part of the phase to differentiate the point of the same phase that feeds the main winding delta point.
Figure 10 depicts a three phase electric machine in a star configuration. The three main windings and the three additional windings and and the additional winding capacitors and with the star connection point and the three line voltage connections and P )PER\DBW30475548 di vdoc- IO2/2O8S 00 -14- Each additional winding is fed with a different phase than its respective main winding. The de-saturation additional winding of main winding is connected through capacitor 00 00 to in line of main winding Dc-saturation additional winding of main winding is connected through capacitor to in line of main winding 00 De-saturation additional winding of main winding is connected through capacitor(9) to Sin line of main winding This clearly shows the opposite field position of the different winding. It should be noted there is a single star connection point.
Figure 11 illustrates winding intemrnal connections of a four poles one delta adjacent poles for a three phase electric machine. The connection point for the in line being point for the main winding and point for the additional winding. The connection point is for the in line T, and the connector point is for the additional winding. The additional winding capacitors being and It should be noted that the respective delta connections of each main and additional windings are three delta points and of the main winding are perfectly symmetrical and equidistant from each other. This novel configuration totally corrects the efficiency and energy saving problem in relation to the direction of rotation. This illustration provides a four poles one circuit delta, which corrects the rotational problem at other speeds and multiple number of circuits, in either a delta configuration or a star configuration.
Thus, to convert a known single phase or three phase electric machine, the following advantages are noted: No changes on the copper density; Separation of the conventional winding in two different and separate winding following the approximate ration of 1/3, and 2/3; No changes are required on the original type of winding layout, adjacent or consequent poles.
Both windings can be wound and inserted in a single step operation. It is feasible to calculate the capacitance of the additional winding capacitor in microfarads per phase. This P:OER\DBV0478S548 div doc-1/O22003 00 Svalue is directly proportional to the real full load current in amps per phase and inversely proportional of the square of the line voltage in volts. The value timing is then determined by an empirically-determined multiplying factor that is approximately between 0.250 x 106 00 and 0.3 x 106. The additional winding and the additional winding capacitor are connected 00 to one another in series relation and are connected in parallel relation to the main winding.
SMoreover, the additional winding and the additional winding capacitor are reverse 0connected relative to the main winding and are not connected to the same phase voltage as Sthe main winding. More particularly, in Fig. 9, main winding is connected to voltage phase RA, and auxiliary winding is connected to voltage phase SA through capacitor main winding is connected to voltage phase SA, and auxiliary winding is connected to voltage phase TA through capacitor 8, and main winding is connected to voltage phase TA, and auxiliary winding is connected to voltage phase RA through capacitor 9.
The same construction applies to the star or "wye" configuration of Fig. 10, where the respective voltage phases are denoted R, S, and T.
It is, therefore, clearly advantageous to increase the overall efficiency, a distinct improvement of the power factor, a noted considerable drop in the starting current, running current and in the full load current.
Conveniently, each additional winding is fed through one or more multiple capacitors in opposite phase angle and opposite field directions from each respective main windings and in which the total cross-section of the wire size used on each main and additional winding are of predetermined dimensions.
Suitably, the calculation process of the winding capacitor value follows a specific formula in which the capacitive value in microfarads is directly proportional to the actual full load current in amperes consumed by the electric motor, or produced by the synchronous generator, reversely proportional to the square of the line voltage and affected by the above-mentioned empirically-determined multiplying factor that is approximately between 0.25x 106 and 0.3x 106.
P: ZPER\DBW 0479S4 divdo.-I/102OO8 00 -16- SIt will be appreciated that in a single phase electric machine characterized in that first and second main windings coupled to a main common point and first and second potential lines of a line voltage, first and second additional windings coupled to a winding capacitor and the first 00 and second potential lines in a parallel connection with the first and second main windings, 00 each of the first and second additional windings generating a field in opposite direction with a Scorresponding one of the first and second main winding.
00 SPreferably, the first and the second main windings has a main wire size and each of the first and the second additional windings has an additional wire size, in which the main wire size is approximately twice the additional wire size.
In a convenient form, a multi-phase electric machine comprises a plurality of main windings connected in delta configuration at three line connection points having a line voltage, each of the main winding having a main wire size, and a plurality of segments connected in parallel with the plurality of the main winding. Each segment including an additional winding and a winding capacitor, with the additional winding having an additional wire size and a phase different than and generating a field in opposite direction with a corresponding one of the main windings.
Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
Claims (13)
1. A single phase electric generator winding, comprising: 00 a main winding having a predetermined number of turns; 5 an additional, destaurating winding being reversely connected relative to said main O winding so that current flows in a first direction through said main winding and in a second 0 direction through said additional, desaturating winding, said second direction being Sopposite to said first direction; a capacitor electrically connected in series with said additional, desaturating winding; said capacitor and said additional, desaturating winding electrically connected in parallel with said main winding; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third
2. A single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in series; an additional, desaturating winding having two half sections connected to one another in series; a capacitor connected in series to said two half sections; said additional, desaturating winding and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; P:OPER\DBW\30478548 divdoc.-/022008 00 O S-18- Ssaid main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; 00 said first and second predetermined cross-sections being related to one another by a 00 ratio; Ssaid ratio being about two-thirds to one-third 00
3. The single phase electric generator of claim 2, further comprising: a start winding, a start capacitor, and a switch means connected in series with one another and in parallel relation to said main and additional, desaturating windings.
4. A single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in parallel; an additional, desaturating winding having two half sections connected to one another in series; a capacitor connected in series to said two additional, desaturating winding half sections; said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third P:OPER\DBW3047854S di doc-/102/2008 00 O 0 -19- A single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in parallel; 00 an additional, desaturating winding having two half sections connected to one 00 another in parallel; O a capacitor connected in series to said two additional, desaturating winding half OO sections; O said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third
6. A single phase electric generator, comprising: a main winding having two half sections electrically connected to one another in series; an additional desaturating winding having two half sections connected to one another in parallel; a capacitor connected in series to said two additional, desaturating winding half sections; said additional, desaturating winding half sections and said capacitor connected in parallel to said main winding; each half section of said additional, desaturating winding connected in reverse relative to an associated half section of said main winding so that current flowing through said half P:.OPER\DBW\30478548 div doc- 1/022008 00 sections of said additional, desaturating winding flows in an opposite direction relative to current flowing through said half sections of said main winding; said main winding formed of a conductor having a first predetermined cross-section 00 and said additional, desaturating winding formed of a conductor having a second 00 predetermined cross-section; Ssaid first and second predetermined cross-sections being related to one another by a 0 0 ratio; Ssaid ratio being about two-thirds to one-third
7. A delta-wound three phase generator, comprising: a first, second, and third main winding connected to one another in delta configuration; a first, second, and third additional, desaturating winding connected to one another in delta configuration, said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional, desaturating windings respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction. a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings so that each additional, desaturating winding is fed current at a different phase than the current fed to said first, second, and third main windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third P:OPER\DBW3047S48 div doc-1/02J2008 00 -21-
8. A star-wound three phase generator, comprising: a first, second, and third main winding connected to one another in star 00 00 configuration; a first, second, and third additional, desaturating winding connected to one another Sin star configuration; 0said first, second and third main and additional, dsaturating windings being Sphysically superposed in nested relation to one another; said first, second, and third additional, desaturating windings respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction. a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings so that each additional winding is fed current at a different phase than the current fed to said first, second, and third main windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third
9. A delta-wound three phase generator, comprising: first, second, and third main windings electrically connected to one another in delta configuration first, second, and third additional, desaturating windings electrically and mechanically connected to one another in delta configuration; said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; P:OPER\DB 30 .7a4 didC- 1/02/2008 00 -22- Ssaid first, second, and third additional desaturating windings being nested within the delta configuration of said first, second, and third main windings; said first, second, and third additional, desaturating windings being respectively 00 connected in parallel and reversely connected relation to said first, second, and third main 00 windings so that current flowing through said first, second and third main windings flows Sin a first direction and current flowing through sad first, second, and third additional, 00 desaturating windings flows in a second direction opposite to said first direction; Sa first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third A delta-wound three phase generator, comprising: first, second, and third main windings electrically and mechanically connected to one another in delta configuration; first, second, and third additional, desaturating windings electrically connected to one another in star configuration said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional, desaturating windings being respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through said first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction; a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and P:OPER\DaW\30478548 divdoc- 1/022008 00 O 0 -23- said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; 00 said first and second predetermined cross-sections being related to one another by a 00 ratio; Ssaid ratio being about two-thirds to one-third 00
11. A star-wound three phase generator, comprising: first, second, and third main windings electrically connected to one another in star configuration, first, second, and third additional, desaturating windings electrically connected to one another in delta configuration; said first, second and third main and additional, desaturating windings being physically superposed in nested relation to one another; said first, second, and third additional, desaturating windings being respectively connected in parallel and reversely connected relation to said first, second, and third main windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through sad first, second, and third additional, desaturating windings flows in a second direction opposite to said first direction; a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third
12. A delta-wound three phase generator, comprising: first, second, and third main windings electrically connected to one another in delta configuration; P:0PERISPM\003200488 Isn sp doc-16J02008 00 0 -24- O first, second, and third additional, desaturating windings electrically connected to Sone another in delta configuration; said first, second and third main and additional, desaturating windings being 00 physically superposed in nested relation to one another; 00 said first, second, and third additional, desaturating windings being respectively Sconnected in parallel and reversely connected relation to said second, third, and first main 00 0 windings so that current flowing through said first, second and third main windings flows in a first direction and current flowing through said second, third, and first additional, desaturating windings flows in a second direction opposite to said first direction; a first, second, and third capacitor respectively connected in series relation to said first, second, and third additional, desaturating windings so that each additional, desaturating winding is fed current at a different phase than the current fed to said first, second, and third main windings so that a one hundred twenty degree (1200) phase shift is achieved; and said main winding formed of a conductor having a first predetermined cross-section and said additional, desaturating winding formed of a conductor having a second predetermined cross-section; said first and second predetermined cross-sections being related to one another by a ratio; said ratio being about two-thirds to one-third
13. A single phase electronic generator winding substantially as hereinbefore described with reference to the accompanying drawings.
14. A single phase electric generator substantially as hereinbefore described with reference to the accompanying drawings. A delta-wound three phase generator substantially as hereinbefore described with reference to the accompanying drawings.
16. A star-wound three phase generator substantially as hereinbefore described with P.IOPERSPM200S20048 1SP p W 1~o6/ 1 2008 00 C0 reference to the accompanying drawings. 00 00 00
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2008200488A AU2008200488B2 (en) | 2002-06-25 | 2008-02-01 | Generator with de-saturation winding |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0207820000 | 2002-06-25 | ||
| AU2003245682A AU2003245682B2 (en) | 2002-06-25 | 2003-06-24 | Motor with de-saturation winding |
| AU2008200488A AU2008200488B2 (en) | 2002-06-25 | 2008-02-01 | Generator with de-saturation winding |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003245682A Division AU2003245682B2 (en) | 2002-06-25 | 2003-06-24 | Motor with de-saturation winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2008200488A1 AU2008200488A1 (en) | 2008-02-21 |
| AU2008200488B2 true AU2008200488B2 (en) | 2009-01-08 |
Family
ID=39233180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2008200488A Ceased AU2008200488B2 (en) | 2002-06-25 | 2008-02-01 | Generator with de-saturation winding |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2008200488B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4446416A (en) * | 1979-08-14 | 1984-05-01 | Wanlass Cravens Lamar | Polyphase electric machine having controlled magnetic flux density |
-
2008
- 2008-02-01 AU AU2008200488A patent/AU2008200488B2/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4446416A (en) * | 1979-08-14 | 1984-05-01 | Wanlass Cravens Lamar | Polyphase electric machine having controlled magnetic flux density |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2008200488A1 (en) | 2008-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2490089C (en) | Motor with additional windings | |
| US20080129137A1 (en) | Motor Winding | |
| EP1805888A2 (en) | High phase order ac machine with short pitch winding | |
| US7928683B2 (en) | High phase order AC machine with short pitch winding | |
| JP2015509697A (en) | Synchronous electrical machine | |
| CA2609605C (en) | Apparatus and method for increasing efficiency of electric motors | |
| JPH0865976A (en) | Brushless self-excited three-phase synchronous generator | |
| WO2001050588A1 (en) | Hybrid-secondary uncluttered induction machine | |
| AU2008200488B2 (en) | Generator with de-saturation winding | |
| RU2112307C1 (en) | Compensated-winding induction machine | |
| RU2075147C1 (en) | Combined 3/1-phase winding for electric machine | |
| SU1334299A1 (en) | Cascade noncontact induction motor | |
| SU1332463A1 (en) | Integrated winding of a noncontact electric machine | |
| RU2231910C1 (en) | Alternating-current drive | |
| RU2602511C1 (en) | Energy-efficient electrical machine with compact end parts of winding | |
| RU2143776C1 (en) | Six-to-four and four-to-six pole-changing winding | |
| RU2050666C1 (en) | Three-and-single-phase electrical machine combined winding | |
| MX2007015112A (en) | Apparatus and method for increasing efficiency of electric motors | |
| Mieno et al. | Current waveforms for high torque to current ratio in surface mounted permanent magnet synchronous motors | |
| JPH06245450A (en) | Synchronous motor | |
| Daniels et al. | The basis of operation of electromagnetic machines | |
| JPS6181157A (en) | Structure of rotary electric machine | |
| JPS6139894A (en) | Structure of rotary electric machine | |
| JPS60197142A (en) | Structure of rotary electric machine | |
| JPS63213439A (en) | Single-phase electric rotary machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC1 | Assignment before grant (sect. 113) |
Owner name: MIRACULOUS MOTORS, LLC Free format text: FORMER APPLICANT(S): MIRACULOUS MOTORS CORPORATION, INC. |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |