CN111969740A - Logic control power supply based on magnetic rotor - Google Patents

Abstract

The invention provides a logic control power supply based on a magnetic rotor, which comprises an electromagnetic module, a switch module, a logic module and a power supply, wherein the electromagnetic module is used for generating a magnetic field; the electromagnetic module comprises a magnetic core and a coil; the coil is respectively connected with the switch module and the logic module; the logic module is connected with the switch module; the switch module and the logic module are connected with a power supply; the logic control power supply is used for controlling a magnetic rotor with n permanent magnets arranged on the outer edge, and magnetic cores are adjacently arranged on the outer edge of the magnetic rotor with a gap m when the magnetic rotor is installed; the logic module controls the switch module to provide pulse direct current in a T/2n time domain before or/and after the reference time by acquiring the reference time signal, the power-on time of each time is less than T/5n, and the power is cut off in the rest time, so that the magnetic rotor obtains the forward rotation increment and operates at the rotating speed corresponding to the rotating period time T.

Description

Logic control power supply based on magnetic rotor

Technical Field

The invention relates to the field of control power supply design, in particular to a logic control power supply based on a magnetic rotor.

Background

The control power supply is a power supply device for controlling an electric machine, such as a controller for controlling the rotating speed of a conventional motor, and the logic control power supply is used for controlling a magnetic rotor with a plurality of permanent magnets arranged on the outer edge.

The design and control of the magnetic rotor are actively researched in recent years, the design in the early stage is that an inertia turntable is arranged on a rotating shaft of a motor, a plurality of permanent magnets are arranged on the periphery of the rotating shaft after the rotating shaft turns the sight line, and the requirement of some mechanical devices is met by utilizing the magnetic transmission action between the peripheries of an electric rotating wheel with the same permanent magnet on the outside. One obvious advantage of magnetic transmission is that it is convenient to control the coupling of the prime mover and the load, for example, some large rotating blades for air exchange do not need to be completely stabilized in speed and need to save electricity, therefore, some application scenarios design a magnetic transmission device, when the rotating speed reaches the upper limit, the prime mover is powered off temporarily, the transmission device is disengaged, and the mechanical inertia of the blades is used to continue rotating; when the rotating speed of the blade is reduced to the lower limit, the main motor and the coupling transmission device are restarted, so that the aim of saving electric energy is fulfilled.

The application provides a control technical scheme improvement and a control method for the magnetic rotor.

Disclosure of Invention

The invention aims to provide a logic control power supply according to the periodic motion characteristic of a permanent magnet arranged on the outer edge of a magnetic rotor aiming at the design defect of the existing magnetic rotor, and the torque increment of the magnetic rotor is replaced by controlling the periodically generated electromagnetic force, so that the utilization rate of electric energy is improved, and the process is easy to realize.

In order to achieve the technical aim, the invention provides a logic control power supply based on a magnetic rotor, which comprises an electromagnetic module, a switch module, a logic module and a power supply; the power supply is respectively connected with the switch module and the logic module; the electromagnetic module comprises a magnetic core and at least one group of coils arranged around the magnetic core; the coil is respectively connected with the power output end of the switch module and the signal input end of the logic module; the control end of the logic module is connected with the switch module; the logic control power supply is used for controlling the rotation of a magnetic rotor with n permanent magnets arranged at intervals along the outer edge of the matrix, the magnetic cores are adjacently arranged at the outer edge of the magnetic rotor when the magnetic rotor is installed, and a gap m is arranged between the magnetic cores;

the switch module is internally stored with a controlled electrifying program and is provided with n pulse current cycles corresponding to one rotation cycle of the magnetic rotor; a signal logic processing program is stored in the logic module, a reference time signal is obtained by shifting any permanent magnet to a reference normal line, the switch module is controlled to provide pulse direct current for the electromagnetic module in a T/2n time domain before the reference time or/and after the reference time, the power-on time of each time is less than T/5n, the power is cut off in the rest time, and the magnetic rotor obtains a shifting increment through a periodic pulse electromagnetic pole and operates at a rotating speed corresponding to a rotating period T; the reference normal is determined by the installation position of the rotating shaft of the magnetic rotor and the magnetic core.

In the invention, n is a positive integer; the permanent magnet is made of magnetic steel, neodymium iron boron and other materials well known to those skilled in the art; the gap m is the distance between an electromagnetic pole electrified by the electromagnetic module and a rotating contour line of the permanent magnet; said forward rotation is defined according to the direction of rotation of the magnetic rotor.

In the technical scheme, more than two groups of coils of the electromagnetic module are arranged; more than one group of the electromagnetic force coils are connected with the direct current power supply output end of the switch module; more than one group of magnetoelectric induction coils are connected with the signal input end of the logic module.

In the above technical solution, the switch module includes a switch circuit and a control module, and power input ends of the switch circuit and the control module are connected to the power supply; the controlled power-on program is stored in the control module; the control end of the control module is connected with the switch circuit, and the logic control input end of the control module is connected with the logic module; and the power output end of the switching circuit is connected with the electromagnetic force coil of the electromagnetic module.

The logic module of the technical scheme comprises a signal processing module and a logic processing module, wherein the power supply input ends of the signal processing module and the logic processing module are connected with the power supply; the signal logic processing program is stored in the logic processing module; the control end of the logic processing module is connected with the switch module; the signal output end of the signal processing module is connected with the logic processing module, and the signal input end of the signal processing module is connected with the magnetoelectric induction coil of the electromagnetic module; part of functions of the signal logic processing program can be integrally designed with the controlled power-on program stored in the switch module.

In the above technical solution, the logic module includes a control device for adjusting the logic control signal in real time; the power supply input end of the control device is connected with the power supply, and the control end of the control device is connected with the logic processing module or the switch module; the control device is independently designed and comprises an external part, and part of control functions of the control device can be integrated into the logic processing module.

In the technical scheme of the magnetic rotor, the magnetic rotor with n permanent magnets arranged at intervals on the outer edge is characterized in that the magnetic pole lines of the permanent magnets are arranged along the tangential direction of the outer edge of the magnetic rotor, or along the normal direction, or along the rotating shaft direction of the magnetic rotor; the magnetic pole arrangement of the n permanent magnets is the same with the rotating shaft as a reference direction.

In the technical scheme, the signal logic processing program stored in the logic module is used for sequentially recording the interval time between the current reference moment and the previous reference moment and providing a real-time control signal for the switch module, and the controlled electrifying program stored in the switch module correspondingly judges to provide pulse direct current for the electromagnetic module; the pulse direct current comprises starting/stopping power-on time, power-on time domain and real-time period time/frequency, and controls the real-time rotating speed of the magnetic rotor.

Preferably, as a preferred aspect of the above magnetic rotor control solution, the pulse direct current start energization time of the controlled energization program is selected in a time domain of T/2n before a reference time, the energization time is less than T/5n, and the current direction is: the electromagnetic pole generated by the electromagnetic module is opposite to the polarity of the opposite permanent magnet.

As another preferable aspect of the above magnetic rotor control solution, the pulse direct current cut-off energization time of the controlled energization program is selected in a time domain of T/2n after the reference time, the energization time is less than T/5n, and the current direction is: the electromagnetic poles generated by the electromagnetic modules have the same polarity as the opposite permanent magnets.

In the above technical solution, the signal processing logic program further includes a power-on time domain correction program: the internal storage of the logic module judges the rotating speed of the current magnetic rotor by recording the interval time of the reference time, compares the cycle time/frequency of the current logic processing pulse direct current with the real-time control signal provided by the control device, automatically optimizes and adjusts the electrifying time domain, and intelligently controls the real-time cycle time/frequency of the pulse direct current.

The mechanical frame piece required by the logic control power supply in practical application can be made of any material and structure on the premise of effectively realizing mechanical fixation and support.

The main differences between the logic controlled power supply of the present invention and conventional motor controllers are: the electromagnetic module (analogous to a conventional stator) does not generate a rotating magnetic field; the electromagnetic module and the magnetic rotor (similar to a conventional rotor) are not arranged in a coaxial manner; the power supply mode of the switch module (analog power supply system) to the electromagnetic module is pulse direct current; the rotation speed of the magnetic rotor is controlled by an internal storage time algorithm program without adopting a feedback control mode of a conventional position sensor.

The most common driving mode of the motor is to use a rotating magnetic field, how to achieve more power-saving control is one of the targets of long-term research in the electromechanical industry, and the application can be preferably a technical supplement scheme. The controlled magnetic rotor can provide mechanical energy linkage for the lower-level load through any part of a rotating shaft or a base body of the controlled magnetic rotor.

The invention has the advantages that: the electromagnetic energy is converted into the torque through the change of the distribution state of the gap magnetic field of the magnetic rotor, when the magnetic rotor has certain mass, a program control algorithm thought can be provided according to the magnetic field pulsation characteristic and the load inertia of the magnetic rotor, the electricity-saving effect is obvious, and the conversion efficiency of the electric energy and the mechanical energy is high.

Drawings

FIG. 1 is a schematic diagram of a main circuit structure and logic control relationship of the logic control power supply;

FIG. 2 is a schematic view of the magnetic rotor of the present invention with permanent magnets disposed on the outer periphery;

FIG. 3 is a schematic diagram of a structure in which the magnetic pole lines of the permanent magnet are designed along the normal direction;

FIG. 4 is a schematic view of a structure in which the magnetic pole lines of the permanent magnet are designed in the tangential direction;

FIG. 5 is a schematic view showing a structure of a three-lobed magnetic rotor in which the magnetic pole lines of the permanent magnets are oriented in the direction of the rotation axis;

FIG. 6 is a schematic diagram of a logic control relationship of the discrete switching circuit and the control module of the switching module;

FIG. 7 is a schematic diagram of a main circuit structure and logic control relationship of discrete sub-modules of a logic module;

FIG. 8 is a partial schematic view of the magnetic rotor and electromagnetic module installation;

FIG. 9 is a schematic diagram of a partial top view of the example of FIG. 8;

FIG. 10 is a schematic view of another partial structure of the magnetic rotor and electromagnetic module installation;

FIG. 11 is a schematic diagram of a partial top view of the example of FIG. 10;

FIG. 12 is a schematic view of the reference normal;

FIG. 13 is a partial schematic view of a magnetic rotor motion model corresponding to a reference time instant;

FIG. 14 is a partial schematic view of the electromagnetic poles being opposite the poles of the opposing permanent magnets of the magnetic rotor prior to a reference time;

FIG. 15 is a partial schematic view of the same magnetic poles of the electromagnetic poles as the opposing permanent magnets of the magnetic rotor after a reference time;

FIG. 16 is a partial schematic view of a division into 2n T/2n sequential sectors corresponding to rotation of a magnetic rotor;

FIG. 17 is a waveform diagram illustrating a start-up periodic pulse current in the time domain T/2n before a reference time;

FIG. 18 is a waveform diagram of an off-period pulse current in the T/2n time domain after a reference time;

FIG. 19 is a schematic diagram of the start/stop period pulse current in the T/2n time domain before and after a reference time;

FIG. 20 is a schematic illustration of the magnetic force tangential, normal force components and their vector dynamic angle before the reference time;

FIG. 21 is a schematic of the magnetic force tangent, normal force component, and its vector dynamic angle after a reference time.

The attached drawings are as follows:

1. electromagnetic module 2, switch module 3, magnetic rotor 3a, rotating shaft 3b and outer edge

3c, permanent magnet 3d, magnetic polar line 4, logic module 5, normal line 6 and tangent line

7. Power supply 8, reference normal 9, magnetic force line m, gap N/S, magnetic pole

n, permanent magnet number A, current intensity theta, dynamic included angle T, time T and cycle time

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and examples.

A main circuit structure and a logic control relation of the logic control power supply are schematically shown in figure 1, and the logic control power supply comprises an electromagnetic module, a switch module, a logic module and a power supply; wherein, the power supply is respectively connected with the switch module and the logic module; the electromagnetic module comprises a magnetic core and at least one group of coils arranged around the magnetic core; the coil is respectively connected with the power output end of the switch module and the signal input end of the logic module; the control end of the logic module is connected with the switch module. The logic control power supply is used for controlling the rotation of a magnetic rotor with n permanent magnets arranged at intervals along the outer edge of a matrix, the magnetic cores are adjacently arranged at the outer edge of the magnetic rotor when the logic control power supply is installed, and a gap m is arranged between the magnetic cores.

The magnetic rotor 3 refers to a type of mechanical member characterized by rotation about an axis, such as a disk, a blade, and its base body is made of a non-magnetic solid molding material. The magnetic pole line 3d of the permanent magnet on the magnetic rotor (the line connecting the two poles N, S of the permanent magnet and the extension line thereof) is usually arranged along the rim tangent 6 direction, or along the normal 5 direction, as shown in fig. 2, and the magnetic pole line may also be arranged along the direction parallel to the rotation axis 3a according to the typical arrangement direction of the permanent magnet. Fig. 3 is a schematic structural view of a magnetic rotor 3 in which permanent magnets 3c are installed outside an outer rim 3b, and a magnetic pole line 3d is arranged in a direction of a normal line 5, and 4 permanent magnets are arranged at intervals around the outer rim. Fig. 4 is an example in which 8 permanent magnets 3c are embedded in the outer edge 3b in an evenly spaced arrangement and the magnetic pole lines 3d are arranged in the direction of the tangent line 6, the permanent magnets are embedded inside the outer edge of the magnetic rotor, and the outer arcs of the permanent magnets coincide with the outer peripheral surface of the outer edge 3 b.

There are several variations of the magnetic rotor 3, for example, the moving locus of the outer edge of the rotating blade is a circle, and the permanent magnet 3c provided on the outer edge 3b of the blade also constitutes a magnetic rotor according to the present invention, as shown in fig. 5, the magnetic pole line of this example is provided along the direction of the rotating shaft 3 a. The permanent magnets arranged at the outer edge of the magnetic rotor are preferably the same in shape and evenly distributed at intervals, and products with higher magnetic flux density are preferably selected without limitation on the shape on the premise of not influencing the installation.

The main current technology for driving the magnetic rotors is that an active magnetic rotating wheel with a similar structure is adjacently arranged at the outer edge of the magnetic rotor, a motor is used for driving the active magnetic rotating wheel, the magnetic rotor is driven by applying the torque technical principle, and the inertia of the magnetic rotor is fully exerted in the intelligent control process. The technical scheme of the invention is that the electromagnetic module 1 is adopted for driving.

The electromagnetic module 1 has the function of converting direct current into electromagnetic poles, and the magnetic core is a magnetic medium material which can generate stronger additional magnetic field under the action of an external magnetic field and is known to those skilled in the art, and the shape of the magnetic core is arbitrary, such as a strip shape and a concave shape; the coil usually uses copper wire or copper-plated aluminum core wire, and the more turns, the stronger the electromagnetic action. The gap m is the distance between an electromagnetic pole generated by the magnetic core when the electromagnetic module 1 is electrified and the magnetic pole of the opposite permanent magnet 3c, the technical requirement that the electromagnetic pole and the magnetic pole are not in contact is implied, the gap with magnetic action is known in the industry to be an energy channel for transmitting the magnetic action between the magnets, the smaller the gap is, the more beneficial to the transmission of the magnetic action is, the value of the gap is related to the magnetic permeability of the magnetic core, the number of turns of the coil, the electrifying strength and the magnetic flux of the permanent magnet, the small-sized device is generally arranged to be 1-2.

The electromagnetic module 1 is provided with at least one group of coils, including one group, and the electromagnetic force coil and the magnetoelectric induction coil are combined into one; because the electromagnetic force coil has the function of generating an electromagnetic pole, and the magnetoelectric induction coil has the function of acquiring a reference time signal, more than two groups are preferably arranged in the practical design, wherein more than one group is the electromagnetic force coil and is electrically connected with the direct-current power supply output end of the switch module 2; more than one group of magnetoelectric induction coils are electrically connected with the signal input end of the logic module 4; the above-mentioned group means at least one group. A plurality of electromagnetic force coils can be arranged according to the electromagnetic acting force required by the normal operation of the magnetic rotor 3; according to the requirements on the precision and reliability of the reference time, a plurality of magnetoelectric induction coils can be arranged, and the corresponding logic module 4 is provided with a plurality of signal input ends.

The switch module 2 and the logic module 4 are realized by adopting a logic digital technology and an operation circuit, and the sub-modules generally comprise: the logic interface circuit, microprocessor and signal input processing circuit which are internally stored with logic control program, peripheral circuit, etc. can make correspondent D/A conversion by means of input signal and can control output sequential current according to set logic, and the internal storage can be used for programming. At present, the market has more integrated module products, and the requirements of working logics can be generally met through programming. When the output power of the switch module is large and the conventional integrated module cannot meet the use requirement, the switch module can be separately designed into a switch circuit and a control module with high power output so as to meet the design requirement, and the main circuit structure and the logic control relation of the switch circuit and the control module which are separately designed are shown in fig. 6.

The logic module 4 has the main functions of acquiring an analog signal of the electromagnetic module 1, converting the analog signal into a reference time signal, and controlling the periodic pulse current of the switch module 2, and the internal structure of the logic module comprises a signal processing module and a logic processing module; the signal processing module has the function of acquiring an analog electric signal provided by a magnetoelectric induction coil in the electromagnetic module 1, and the main function of the logic processing module is to convert the analog electric signal into a logic signal for controlling the switch module 2.

The logic module 4 can also be added with a control device for adjusting the pulse direct current frequency of the switch module 2 in real time, the control device is independently designed and comprises an external part, partial functions of the control device can also be integrated into the logic module, the control mode can be various, for example, the control mode is realized by using a traditional resistor, an operation pressure device and an optical coupler, and the technical purpose is to enable the switch module 2 to output corresponding pulse current through real-time control; the higher the frequency of the periodic pulse current of the switch module is, the faster the magnetic rotor rotates. The main circuit structures and control relations of the logic module 4, the electromagnetic module 1, the switch module 2 and the power supply 7 of the discrete signal processing module, the logic processing module and the control device are shown in fig. 7.

When the magnetic rotor operates, the motion track of the permanent magnet is a closed circumference line, fig. 8 is a preferred installation example of the magnetic rotor 3 and the electromagnetic module 1, the magnetic pole line 3d of the permanent magnet 3c is arranged along the normal 5 direction of the magnetic rotor and periodically opposite to the electromagnetic module 1 in rotation, and the overlooking partial structure is schematically shown in fig. 9. Fig. 10 is another preferred installation example of the magnetic rotor and the electromagnetic module, the magnetic pole lines 3d of the permanent magnets 3c are arranged along the direction of the rotating shaft 3a of the magnetic rotor 3, when the permanent magnets 3c on the magnetic rotor 3 periodically face the electromagnetic module 1 in rotation, the magnetic pole lines 3d of the permanent magnets coincide with the projection of the electromagnetic module 1, and the plan view is partially shown in fig. 11.

The permanent magnet 3c rotates along with the magnetic rotor 3 to provide a periodic pulsating magnetic field for the rotating space of the outer edge 3b, and the magneto-electric induction coil can convert the information of the pulsating magnetic field into an electric signal and feed back the electric signal to the logic module. The reference normal 8 determined by the installation positions of the rotating shaft 3a of the magnetic rotor and the magnetic core of the electromagnetic module 1 is shown in fig. 12, and the reference time can be obtained according to the fact that the permanent magnet 3c is rotated to the reference normal 8; the magnetoelectric induction coil provides an analog electric signal with the strength normally distributed along with time for the logic module 4, the maximum value of the signal can be obtained corresponding to the superposition state of the real-time normal line 5 and the reference normal line 8 when the permanent magnet rotates, and the moment of the maximum value of the signal is judged as the reference moment.

The pulse current output by the switch module 2 correspondingly generates pulse electromagnetic poles through the electromagnetic module 1, and provides pulse direct current in a T/2n time domain before or/and after the reference time, without power supply at the reference time. At the reference moment, the permanent magnet motion model corresponds to that the real-time normal 5 coincides with the reference normal 8, and at this time, the magnetic acting force applied to the permanent magnet 3c has no tangential component force, so that no benefit is brought to the forward rotation of the magnetic rotor, as shown in fig. 13.

The logic module controls the switch module 2 to electrify the electromagnetic module to generate an electromagnetic pole so that the magnetic rotor 3 obtains a forward rotation increment, and multiple technical meanings of a power supply time domain and a current/electromagnetic pole direction are implied: to make the magnetic rotor obtain the forward shifting increment, the magnetic polarity of the electromagnetic pole before the reference time must be opposite to the magnetic pole of the opposite permanent magnet 3c (as shown in fig. 14), or the magnetic polarity after the reference time must be the same as the magnetic pole of the opposite permanent magnet 3c (as shown in fig. 15), otherwise, the electromagnetic pole generated by electrifying the electromagnetic module cannot make the magnetic rotor obtain the forward shifting increment. Therefore, the principle of the control technical scheme of the logic control power supply is implied by the forward rotation increment obtained by the magnetic rotor.

In the prior art, a conventional motor drives a rotor by using a rotating magnetic field, and the frequency of the rotating magnetic field determines the rotating speed of the rotor; the numerical control servo motor is usually provided with a dedicated rotor position sensor for feeding back a real-time position signal of the rotor, such as a deflection angle of a magnetic force line and a deflection angle around an axis, and the control is realized by real-time signal data of the deflection angles. The technical scheme of the invention is different from the prior art in that a control mode of feeding back signal data according to the real-time position of the rotor is not adopted, and the technical scheme is a time logic program control scheme, and once the magnetic rotor is started, the magnetic rotor is operated according to a controlled electrifying program stored and set in the switch module 2 and combined with a logic instruction of the logic module 4.

The logic control power supply provides a technical scheme for controlling the rotation of the magnetic rotor, and the technical scheme comprises the following steps: is determined by the stored controlled power-on program of the switch module 2 in combination with the stored signal processing logic program of the logic module 4. The signal logic processing program stored in the logic module 4 is used for sequentially recording the interval time between the current reference moment and the previous reference moment and providing a real-time control signal for the switch module 2, and the controlled electrifying program stored in the switch module correspondingly judges that the pulse direct current is provided for the electromagnetic module 1; the pulse direct current comprises starting/stopping power-on time, power-on time domain and real-time period time/frequency, and controls the real-time rotating speed of the magnetic rotor.

The switching module is provided with n pulse current cycles corresponding to one rotation cycle of the magnetic rotor, and the number of the pulse current cycles is related to the number n of the permanent magnets of the magnetic rotor, for example, 16 permanent magnets are arranged on the outer edge of the magnetic rotor, and the switching module is provided with 16 pulse current cycles corresponding to each rotation cycle of the magnetic rotor. Corresponding to the n pulse current periods, which is equivalent to dividing the flow of one rotation period of the magnetic rotor into n or 2n time sectors of the rotation process with time, the corresponding time for the permanent magnet 3c to operate on the 2n rotation sectors on the magnetic rotor is T/2n, as shown in fig. 16. Because the permanent magnets are uniformly distributed on the magnetic rotor, the switch module can calculate the forward-shifting current rate of the permanent magnets by only knowing the interval time between any reference time and the previous reference time through the internally stored controlled energization program, and then the time-sequenced periodic pulse current is provided in the set T/2n time domain according to the real-time control signal given by the logic module.

The pulse current is a periodic characteristic, and the meaning of one pulse current period is not limited to one pulse current. N pulse direct current cycles can be correspondingly designed corresponding to one rotation cycle of the magnetic rotor, the starting electrifying time is selected in a T/2n time domain before the reference time, the electrifying time is less than T/5n, and the current direction is as follows: the electromagnetic module 1 generates electromagnetic poles with opposite polarities to the opposite permanent magnets 3c, and a waveform of the starting periodic pulse current is schematically shown in fig. 17 in combination with fig. 16; or the cut-off power-on time is selected in a time domain of T/2n after the reference time, the power-on time is less than T/5n, and the current direction is as follows: the electromagnetic pole generated by the electromagnetic module 1 is the same as the polarity of the opposite permanent magnet 3c, and the waveform of the off-period pulse current is schematically shown in fig. 18 in combination with fig. 16; 2n pulse direct current periods can be designed corresponding to one rotation period of the magnetic rotor, and a waveform schematic combining the start/stop power-on in the T/2n time domain before and after the reference time is shown in fig. 19.

In a specific design, the start/stop energization time may be set according to a fine motion model of the permanent magnet 3c in the structure of the magnetic rotor 3 in combination with the gap m, and when the motion model is complex (for example, when the magnetic pole lines of the permanent magnets are arranged along the rotating shaft direction, the magnetic interaction between the permanent magnets and the electromagnetic module coexists with dynamic vectors in the directions of the normal direction 5, the tangential direction 6, and the rotating shaft 3a), the engineering people tend to perform experimental determination. The setting of n pulse current cycles corresponding to one rotation cycle of the magnetic rotor and the existence of the gap m are limited, so that the starting energization cannot exceed the T/2n time domain before the reference time, and the stopping energization cannot exceed the T/2n time domain after the reference time.

The time domain in which the energizing time of the periodic pulse current is less than T/5n each time is defined by the technical scheme, and the specific time domain is optimized by a designer. Fig. 20 and 21 are schematic diagrams of the tangential and normal component directions of the magnetic force line 9 between the permanent magnet 3c and the electromagnetic module 1 before the reference time and after the reference time, respectively, and the vector dynamic included angle θ thereof, and it can be seen that the magnetic force applied before the permanent magnet simultaneously coexists a tangential component (gain source) and a normal component (no gain), which cancel each other, there is no tangential component at the reference time (θ is 0, corresponding to the real-time normal 5 coinciding with the reference normal 8), and the tangential component at θ is 90 degrees is the largest.

The frequency of the pulsed direct current, which determines the speed of rotation of the magnetic rotor, is also determined by the energizing time-domain correction program stored in the logic module 4, in combination with the real-time control signal provided by the control device. The electrifying time domain correction program judges the current rotating speed of the magnetic rotor for the interval time of the internal storage of the logic module through recording the reference time, compares the cycle time/frequency of the current logic processing pulse direct current with the real-time control signal provided by the control device, automatically optimizes and adjusts the electrifying time domain, and intelligently controls the real-time cycle time/frequency of the pulse direct current.

The correction program is an intelligent power-saving control technical scheme and has an error correction function for manual control. Because the power supply of the switch module 2 is the electricity-saving pulse current, the rotating speed of the magnetic rotor 3 has a gradual time process, if the manually controlled control module instantly gives a high-frequency instruction of the pulse current period, which is inconsistent with the forwarding optimization mode stored and set in the switch module 2, the correction program can set to refuse to execute the high-frequency instruction.

The present invention has many variations, for example, the source of the reference time signal obtained by the logic module 4 includes but is not limited to an electromagnetic module, and may also be replaced by a photoelectric conversion device, and correspondingly, the light source is designed in cooperation with the rotating blade, and the reference time is acquired by using the coupling of the moving light source and the photoelectric conversion device. The outer edge of the magnetic rotor of the control object can be combined with n permanent magnets in different arrangement modes; the logic control power supply can be provided with a plurality of electromagnetic modules for matching with the same magnetic rotor, or the plurality of electromagnetic modules are controlled by combining a plurality of switch modules 2, and the implementation of the variants is easily understood by those skilled in the art. The source of the power supply can be mains supply alternating current, and also can be wind energy, solar energy or batteries, and the power supply comprises the power supply collected at the load end of the magnetic rotor by an intelligent control technology method.

The preferred examples are only recommended, and a plurality of technical solutions can be partially used, or can be added or combined and used by other mature technologies, so that the basic aim of the technical solution of the invention can be achieved.

Examples 1,

The invention designs a logic control power supply which comprises an electromagnetic module 1, a switch module 2, a logic module 4 and a power supply 7 of a group of lead storage batteries. The magnetic rotor 3 of the control object is a disc with the radius of 60Cm and the thickness of 8Cm, 16 permanent magnets 3c with the area of 8 multiplied by 6Cm and the thickness of 1Cm are arranged around the outer edge 3b, the 16 permanent magnets are arranged at intervals, the magnetic pole lines 3d are arranged along the direction of the rotating shaft 3a, and the arrangement directions of the magnetic poles are the same.

The electromagnetic module 1 in the logic control power supply comprises a strip-shaped magnetic core and coils, wherein the magnetic core is made of a special rare earth material with high magnetic permeability, two groups of coils are arranged, one group of the coils is an electromagnetic force coil and is formed by winding a copper wire (carrying current is more than 20A) around the magnetic core, the number of turns of the winding is more than 100, and the specific number of turns is adjusted according to experiments; the other group of the magnetic-electric induction coils is formed by winding a copper wire with the diameter smaller than 0.5mm around a magnetic core, the number of turns of the winding is more than 50, and the specific number of turns is also adjusted according to the signal processing precision experiment of the control module in the switch module 2.

The switch module 2 comprises a switch circuit and a control module, and the power input ends of the switch circuit and the control module are respectively connected with a power supply 7; the power output end of the switch circuit is connected with the electromagnetic force coil of the electromagnetic module 1, and the logic control input end of the switch circuit is connected with the control module; the control module is stored with a controlled power-on program, and the signal control end of the control module is connected with the logic module 4. The logic module 4 has a function of converting analog current provided by the magnetoelectric induction coil into a digital control signal, a signal input end is connected with the magnetoelectric induction coil of the electromagnetic module 1, and a signal output end is connected with the control module in the switch module 2.

The main circuit structure and the control relationship of the logic control power supply described in this embodiment are shown in fig. 6.

In the installation of this embodiment, the magnetic core of the electromagnetic module 1 is fixed at the adjacent position of the moving contour of the permanent magnet 3c on the magnetic rotor 3, the S magnetic pole of the permanent magnet 3c on the outer edge 3b of the magnetic rotor 3 faces the magnetic core of the electromagnetic module 1, the local installation structure is as shown in fig. 10, and the gap m is 1.8mm (specifically adjusted according to the experiment).

The connecting line of the rotating shaft 3a of the magnetic rotor and the position of the magnetic core of the electromagnetic module 1 forms the reference normal line 8; presetting a rotation period T of the control magnetic rotor 3 to be 0.5 second (2 revolutions/second), setting 16 pulse current periods corresponding to each rotation period of the magnetic rotor 3 by the switch module 2, wherein each period is 31.25 milliseconds (T/n), and the corresponding T/2n time domain is 15.625 milliseconds; when the magnetic rotor 3 starts to rotate forwards (a starter is arranged according to specific requirements), the logic module 4 obtains a reference moment given by the magnetoelectric induction coil (the moment of the maximum value of the signal is judged that the permanent magnet 3c rotates forwards to a reference normal line 8), the 9 th millisecond counted by the reference moment through the signal logic processing program stored in the logic module controls the switching circuit 2 to start the controlled electrifying program to conduct 6 milliseconds of direct current on the electromagnetic coil of the electromagnetic module 1, so that the electromagnetic module 1 faces the outer edge of the magnetic rotor, generates an electromagnetic pole with a magnetic pole line 3d along the direction of the rotating shaft 3a and the same magnetic polarity as the opposite permanent magnet 3c, and generates a repulsion action with the same polarity of the opposite permanent magnet, so that the magnetic rotor.

The waveform of the pulsed dc power supplied after the reference time as described in this embodiment is schematically shown in fig. 18.

The switch module 2 repeatedly corrects the periodic pulse time domain through a correction program set by the built-in control module, wherein the correction program is as follows: the interval time of the reference time is recorded in sequence, and the current rotating speed of the magnetic rotor is obtained through comparison with the last interval time, so that the electrifying time domain is correspondingly adjusted according to the repeated instruction set by the logic module 4 and the current rotating speed of the magnetic rotor, and the magnetic rotor operates in a state of 2 revolutions per second through a plurality of times of periodic magnetic repulsion.

The magnetic rotor of the embodiment drives a material mixing kettle through a transmission device, so that the electricity-saving effect is remarkable.

Examples 2,

In embodiment 1, the switching module 2 provides the pulse direct current to the electromagnetic module 1 after the reference time, and the improvement of this embodiment is that: each current cycle is set to provide pulse direct current to the electromagnetic module before the reference time and after the reference time; the preset magnetic rotor rotation period and the corresponding T/2n time domain are the same as those of embodiment 1, wherein the technical scheme of supplying power after the reference time is described in detail in embodiment 1.

When the magnetic rotor is rotated forwards, the switch module 2 can distinguish the next reference time through the interval of two reference times, and further increases the direct current conducting for 6 milliseconds to the electromagnetic force coil of the electromagnetic module 1 in the 15 th millisecond before the next reference time, and controls the electromagnetic module to generate an electromagnetic pole with the polarity opposite to that of the opposite permanent magnet 3c facing the magnetic rotor 3.

The waveform of the pulse direct current in this embodiment is schematically shown in fig. 19, and the electromagnetic module 1 generates opposite attraction before the reference time and like repulsion after the reference time respectively due to the magnetic interaction between the electromagnetic poles and the opposing permanent magnets, so that the magnetic rotor 3 obtains a multiplied forward turning gain.

Examples 3,

The structure and control technique of the logic module 4 are improved on the basis of embodiment 2.

The logic module 4 of the present embodiment includes a signal processing module, a logic processing module and a control device; the signal processing module is connected with the magnetoelectric induction coil of the electromagnetic module 1, and the signal output end of the signal processing module is connected with the logic processing module; and the signal output end of the logic processing module is connected with the control module of the switch module 2. The control device is independently designed and externally arranged, and the control end of the control device is connected with the logic processing module and is used for controlling and adjusting the pulse direct current frequency of the switch module 2. The circuit structure and logic control relationship of this embodiment are shown in fig. 7.

A power supply time domain correction program for manual control error correction is added in an internal storage program of the logic module 4, and when a control device controls an acceleration instruction to be in a forwarding optimization mode range set by the logic power supply 2, a controlled power-on program stored in the logic power supply preferentially executes the acceleration instruction; when the pulse current high-frequency instruction given instantly by controlling the acceleration instruction is not in accordance with the forwarding optimization mode of the logic power supply 2, the power supply time domain correction program stored in the logic power supply 2 refuses to execute the instant high-frequency instruction, judges the state to be an abnormal control state, and automatically introduces a transient low-frequency operation mode.

The embodiment can effectively save electricity and improve the safety level of the logic power supply control magnetic rotor.

Examples 4,

The control method is improved on the basis of the embodiment 1, and the internal storage logic program of the logic module 4 is additionally provided with the upper limit and the lower limit of the preset rotating speed of the magnetic rotor 3. When the rotating speed of the magnetic rotor 3 reaches the set upper limit, the switch module 2 is controlled to suspend power supply; when the rotating speed of the magnetic rotor 3 is reduced to the set lower limit, the switch module 2 is controlled to restart to supply power to the electromagnetic module 1; when the magnetic rotor 3 is stabilized at the working condition of 2 revolutions per second for 1 minute continuously, the power supply time domain of the control switch module 2 is automatically changed into: the 12 th millisecond from the reference time controls the switch circuit 2 to conduct 3 milliseconds of direct current to the electromagnetic coil of the electromagnetic module 1, so that the logic control power supply of the embodiment 1 saves more electric energy.

Examples 5,

The technique extension is performed on example 2: the control module of the switch module 2 is expanded into an electric energy distribution management system with a multi-path power supply 7 source, an intelligent charging management program of a power storage pile is arranged in the logic module 4, and the input end of the power supply 7 is respectively connected with the load ends of the wind power, the solar device, the power storage pile and the magnetic rotor 3 in a selecting mode.

The embodiment can guarantee the safe operation of the magnetic rotor 3 by power sources from various sources.

Examples 6,

The logic control power supply of the embodiment 5 is further popularized and applied, the magnetic rotor 3 is used for driving a rotary generator with matched power, and a magnetic suspension transmission device is arranged between a rotating shaft of the generator and a rotating shaft 3a of the magnetic rotor; the power output end of the generator is connected with the power input end of the control module in a shunting manner; the logic control power supply has the functions of electric energy distribution and intelligent charging management, and the power supply output end of the logic control power supply is connected with the secondary electricity storage pile or/and the electromagnetic module 1.

The logic control power supply can realize comprehensive utilization of power supplies from various sources.

Claims (10)

1. A logic control power supply based on a magnetic rotor is characterized by comprising an electromagnetic module (1), a switch module (2), a logic module (4) and a power supply (7); the power supply (7) is respectively connected with the switch module (2) and the logic module (4); the electromagnetic module (1) comprises a magnetic core and at least one group of coils arranged around the magnetic core; the coil is respectively connected with the power output end of the switch module (2) and the signal input end of the logic module (4); the control end of the logic module (4) is connected with the switch module (2); the logic control power supply is used for controlling the rotation of a magnetic rotor (3) with n permanent magnets (3c) arranged at intervals along the outer edge (3b) of the matrix, the magnetic cores are adjacently arranged on the outer edge (3b) of the magnetic rotor (3) when the logic control power supply is installed, and a gap m is arranged between the magnetic cores;

a controlled electrifying program is stored in the switch module (2), and n pulse current cycles are set corresponding to one rotation cycle of the magnetic rotor (3); a signal logic processing program is stored in the logic module (4), a reference time signal is obtained by forward turning to a reference normal (8) through any permanent magnet (3c), the switch module (2) is controlled to provide pulse direct current for the electromagnetic module (1) in a T/2n time domain before or/and after the reference time, the power-on time of each time is less than T/5n, the power is off in the rest time, and the forward turning increment is obtained by the magnetic rotor (3) through a periodic pulse electromagnetic pole and the magnetic rotor operates at the rotating speed corresponding to the rotating period time T; the reference normal (8) is determined by the installation position of the rotating shaft (3a) of the magnetic rotor (3) and the magnetic core.

2. The logic control power supply according to claim 1, characterized in that the coils of the electromagnetic module (1) are provided in more than two groups; more than one group of the electromagnetic force coils are connected with the direct current power supply output end of the switch module (2); more than one group of magnetoelectric induction coils are connected with the signal input end of the logic module (4).

3. A logic control power supply according to claim 1 or 2, characterized in that the switch module (2) comprises a switch circuit and a control module, and the power supply input terminals of the switch circuit and the control module are connected with the power supply (7); the controlled power-on program is stored in the control module; the control end of the control module is connected with the switch circuit, and the logic control input end of the control module is connected with the logic module (4); the power output end of the switch circuit is connected with the electromagnetic force coil of the electromagnetic module (1).

4. The logic control power supply according to claim 1 or 2, characterized in that the logic module (4) comprises a signal processing module and a logic processing module, and power supply input ends of the signal processing module and the logic processing module are connected with the power supply (7); the signal logic processing program is stored in the logic processing module; the control end of the logic processing module is connected with the switch module (2); the signal output end of the signal processing module is connected with the logic processing module, and the signal input end of the signal processing module is connected with the magnetoelectric induction coil of the electromagnetic module (1); part of functions of the signal logic processing program can be integrally designed with a controlled electrifying program stored in the switch module (2).

5. A logic control power supply according to claim 1 or 4, characterized in that the logic module (4) comprises control means for adjusting the logic control signal in real time; the power supply input end of the control device is connected with the power supply (7), and the control end of the control device is connected with the logic processing module or the switch module (2); the control device is independently designed and comprises an external part, and part of control functions of the control device can be integrated into the logic processing module.

6. A logic control power supply according to claim 1, characterized in that the outer edge (3b) is provided with a magnetic rotor (3) of n permanent magnets (3c) at intervals, and the magnetic polar lines (3d) of the permanent magnets (3c) are arranged along the outer edge tangent (6) direction of the magnetic rotor (3), or along the normal (5) direction, or along the rotating shaft (3a) direction of the magnetic rotor (3); the magnetic pole arrangement of the n permanent magnets (3c) takes the rotating shaft (3a) as a reference direction and is the same.

7. The logic control power supply according to any one of claims 1 to 6, wherein the signal logic processing program stored in the logic module (4) provides a real-time control signal to the switch module (2) for sequentially recording the interval time between the current reference time and the previous reference time, and the controlled power-on program stored in the switch module (2) correspondingly determines to provide the pulse direct current to the electromagnetic module (1); the pulse direct current comprises a starting/stopping power-on moment, a power-on time domain and real-time period time/frequency, and the real-time rotating speed of the magnetic rotor (3) is controlled.

8. The logic control power supply according to claim 7, wherein the pulse direct current start-up power supply time of the controlled power supply program is selected in a time domain of T/2n before a reference time, the power supply time is less than T/5n, and the current direction is as follows: the electromagnetic poles generated by the electromagnetic modules (1) are opposite to the polarities of the opposite permanent magnets (3 c).

9. The logic control power supply according to claim 7, wherein the pulse direct current cut-off power-on time of the controlled power-on program is selected in a time domain of T/2n after the reference time, the power-on time is less than T/5n, and the current direction is as follows: the electromagnetic poles generated by the electromagnetic module (1) are the same as the polarities of the opposite permanent magnets (3 c).

10. The logic controlled power supply according to any one of claims 7 to 9, wherein the signal processing logic further comprises a power-on time domain correction routine: the internal storage of the logic module (4) judges the current rotating speed of the magnetic rotor (3) by recording the interval time of the reference time, compares the cycle time/frequency of the current logic processing pulse direct current with the real-time control signal provided by the control device, automatically optimizes and adjusts the electrifying time domain, and intelligently controls the real-time cycle time/frequency of the pulse direct current.

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