CN114865982A - Iron core magnetic circuit multiplexing redundant power driving system - Google Patents
Iron core magnetic circuit multiplexing redundant power driving system Download PDFInfo
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- CN114865982A CN114865982A CN202110154340.XA CN202110154340A CN114865982A CN 114865982 A CN114865982 A CN 114865982A CN 202110154340 A CN202110154340 A CN 202110154340A CN 114865982 A CN114865982 A CN 114865982A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/06—Linear motors
- H02P25/064—Linear motors of the synchronous type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
Abstract
The application discloses multiplex redundant power actuating system of magnetic circuit unshakable in one's determination, the multiplex passageway of magnetic circuit that the multiplex motor of magnetic circuit of unshakable in one's determination can regard as the magnetic circuit of electromagnetic field, the multiunit winding of a multiplex motor of magnetic circuit of unshakable in one's determination has been connected respectively to multiple converters, the multiplex motor of magnetic circuit of driving unshakable in one's determination jointly, make motor power not receive the restriction of single converter power, the super powerful demand of actuating system has been satisfied, many drive branches have satisfied actuating system's redundant demand. The system comprises: the system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies; the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core; at least two groups of power supplies, at least two converters and at least two groups of motor windings form at least two driving branches; at least two driving branches respectively provide electromagnetic fields, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic fields.
Description
Technical Field
The invention relates to the field of electric transmission automation, in particular to an iron core magnetic circuit multiplexing redundant power driving system.
Background
The linear motor driving technology is developed more and more mature till now, the linear motor has the advantages of high precision, no abrasion, low noise, high efficiency, quick response, space saving and the like, so that the linear motor is widely applied to various fields, and the linear motor is widely applied to industries such as civil use, industry, military and the like. The variable frequency driving of the high-power linear motor is a high and new technology which relates to a plurality of subject fields such as power electronics, motors, electric traction, automation and the like, and the high-power linear motor and the variable frequency driving system are key equipment of a plurality of key projects in the fields of modern rail transit, energy mining, aerospace, national defense war industry and the like.
In the transportation industry, the long stator synchronous linear motor adopted by the Shanghai magnetic levitation line is used for driving, and the speed can reach 500km/h or even higher. However, the maximum capacity of a single domestic converter is limited by the voltage and the current of a power device, and even if sectional type double-end power supply is adopted, namely two high-power converters supply power to a long stator section at the same time, the maximum power is limited, so that the maximum speed of the magnetic suspension train is also limited by the capacity of a driving system.
A six-phase motor circuit is provided in a doctor thesis of a multi-phase induction motor variable frequency speed control system of Hou Li military of the university of West's traffic, and the six-phase motor circuit is composed of a power supply, a six-phase current transformer and a six-phase motor. VOL.55, NO article multiple phase Electric motors for Variable-Speed Applications, discloses an n-phase motor driving system which is composed of an n-phase inverter and an n-phase motor, and has the topological structure characteristic that a single converter drives a single motor.
Therefore, no matter the Shanghai magnetic levitation line adopts two high-power converters to simultaneously supply power to one long stator section, or the two papers adopt a single converter to drive a single motor, the power of the converters is limited, so that the maximum power of a driving system is limited, and the requirement of the driving system for ultrahigh power cannot be met; and a single converter fails to affect the corresponding motor, and the redundancy requirement of the driving system cannot be met.
Disclosure of Invention
The invention aims to provide an iron core magnetic circuit multiplexing redundant power driving system, wherein a magnetic circuit multiplexing iron core of an iron core magnetic circuit multiplexing motor can be used as a magnetic circuit multiplexing channel of an electromagnetic field and an electromagnetic wave, and a plurality of transformers are respectively connected with a plurality of motor windings of the iron core magnetic circuit multiplexing motor, so that the iron core magnetic circuit multiplexing motor is driven without being limited by the power of a single converter, the requirement of the driving system on ultrahigh power is met, and a plurality of driving branches meet the redundant requirement of the driving system.
The invention provides a core magnetic circuit multiplexing redundant power driving system in a first aspect, which comprises:
the system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies;
the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core;
the system comprises at least two groups of power supplies, at least two converters and at least two groups of motor windings, wherein at least two driving branches are formed by the at least two groups of power supplies, the at least two converters and the at least two groups of motor windings;
at least two driving branches respectively provide electromagnetic fields, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic fields.
Further, the iron core magnetic circuit multiplexing motor is an m-group n-phase motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the number of the power supplies is m groups, the number of the current transformers is m, and each current transformer is provided with n phases;
and m groups of power supplies respectively supply power to m converters, and each converter outputs n-phase voltage current to each group of motor windings.
Further, the power supply is any one of a battery, a capacitor, a battery-capacitor combined accumulator, a direct current power grid and an alternating current power grid or a combination of at least two of the battery, the capacitor and the battery-capacitor combined accumulator.
Further, the method is applied to a driving system needing power redundancy and an ultra-high power driving system,
the iron core magnetic circuit multiplexing motor is a motor with m groups of n-phase windings.
Further, when the iron core magnetic circuit multiplexing motor is a rotating motor, the rotating motor is a motor with m groups of n-phase windings;
when the iron core magnetic circuit multiplexing motor is a linear motor, a stator of the linear motor is formed by connecting j modules in series, each module is provided with m groups of n-phase windings, j is a positive integer larger than 1, and the linear motor can be a single-side linear motor, a double-side linear motor or a multi-side linear motor.
Further, the system is applied to the electric propulsion and linear motor driving system of the ultra-high power ship,
the iron core magnetic circuit multiplexing motor comprises a main push rotating motor, a side push rotating motor and a linear motor;
the main push rotating motor is r groups of n-phase rotating motors, the r groups of n-phase rotating motors are provided with r groups of n-phase motor windings, r is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the side-push rotating motor is s groups of n-phase rotating motors, the s groups of n-phase rotating motors are provided with s groups of n-phase motor windings, and s is a positive integer greater than or equal to 2;
the linear motor is t groups of n-phase linear motors, the t groups of n-phase linear motors are provided with t groups of n-phase motor windings, and t is a positive integer greater than or equal to 2.
Further, the stator of the linear motor is formed by connecting j modules in series, each module is provided with t groups of n-phase motor windings, and j is a positive integer larger than 1.
Furthermore, power supplies corresponding to the main push rotating motor and the side push rotating motor are power generation systems;
the power supply corresponding to the linear motor is a combination of a power generation system, t groups of power accumulators, a power generation system and t groups of power accumulators;
the driving branch circuit also comprises r + s + t groups of motor controllers;
r sets of motor controllers respectively control r sets of driving branches of the main push rotating motor;
the s groups of motor controllers respectively control s groups of driving branches of the side-push rotating motor;
and the t groups of motor controllers respectively control t groups of driving branches of the linear motor.
Furthermore, the system is applied to a pure electric aircraft propulsion system,
the iron core magnetic circuit multiplexing motor is an m-group n-phase rotating motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the power supply is a power accumulator, and the power accumulator is provided with m groups;
the driving branch circuit also comprises m groups of motor controllers;
and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
Further, the system is applied to a hybrid electric aircraft propulsion system,
the iron core magnetic circuit multiplexing motor is an m-group n-phase rotating motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the power supply is a power generation system, m groups of electrical accumulators, a combination of the power generation system and the m groups of electrical accumulators;
the driving branch circuit also comprises m groups of motor controllers;
and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
Therefore, the iron core magnetic circuit multiplexing redundant power driving system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies, wherein the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core, the at least two groups of power supplies, the at least two converters and the at least two groups of motor windings form at least two driving branches, each driving branch is provided with one group of power supplies, one converter and one group of motor windings, the at least two driving branches respectively provide an electromagnetic field, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic field. The magnetic circuit multiplexing iron core of the iron core magnetic circuit multiplexing motor can be used as a magnetic circuit multiplexing channel of an electromagnetic field, so that a plurality of transformers are respectively connected with a plurality of groups of windings of the iron core magnetic circuit multiplexing motor to drive the iron core magnetic circuit multiplexing motor together, the power of the motor is not limited by the power of a single converter, the requirement of a driving system for ultrahigh power is met, and a plurality of driving branches meet the redundancy requirement of the driving system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a core magnetic circuit multiplexing redundant power driving system provided by the invention;
FIG. 2 is a system schematic diagram of a core magnetic circuit multiplexing redundant power drive system provided by the present invention;
fig. 3 is a schematic structural diagram of a core magnetic circuit multiplexing motor provided by the invention;
fig. 4 is another schematic structural diagram of the iron core magnetic circuit multiplexing motor provided by the invention;
fig. 5 is a schematic structural diagram of a current transformer provided by the present invention;
FIG. 6 is a schematic diagram of a system for a drive system requiring power redundancy and a super high power drive system according to the present invention;
FIG. 7 is a schematic diagram of a system for electric propulsion and linear motor drive system for very high power vessels according to the present invention;
FIG. 8 is a schematic diagram of a system for a pure electric aircraft propulsion system in accordance with the present invention;
FIG. 9 is a schematic diagram of a system for a hybrid electric aircraft propulsion system in accordance with the present invention.
Detailed Description
The application discloses multiplex redundant power actuating system of magnetic circuit unshakable in one's determination, the multiplex passageway of magnetic circuit that the multiplex motor of magnetic circuit of unshakable in one's determination can regard as the magnetic circuit of electromagnetic field, the multiunit winding of a multiplex motor of magnetic circuit of unshakable in one's determination has been connected respectively to multiple converters, the multiplex motor of magnetic circuit of driving unshakable in one's determination jointly, make motor power not receive the restriction of single converter power, the super powerful demand of actuating system has been satisfied, many drive branches have satisfied actuating system's redundant demand.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an iron core magnetic circuit multiplexing redundant power driving system, including:
the system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies;
the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core;
the system comprises at least two groups of power supplies, at least two converters and at least two groups of motor windings, wherein at least two driving branches are formed by the at least two groups of power supplies, the at least two converters and the at least two groups of motor windings;
at least two driving branches respectively provide electromagnetic fields, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic fields.
In the embodiment of the invention, the iron core magnetic circuit multiplexing redundant power driving system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies, wherein the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core, the at least two groups of power supplies, the at least two converters and the at least two groups of motor windings form at least two driving branches, each driving branch is provided with one group of power supplies, one converter and one group of motor windings, the at least two driving branches respectively provide electromagnetic fields, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic fields. The magnetic circuit multiplexing iron core of the iron core magnetic circuit multiplexing motor can be used as a magnetic circuit multiplexing channel of an electromagnetic field, so that a plurality of transformers are respectively connected with a plurality of groups of windings of the iron core magnetic circuit multiplexing motor to drive the iron core magnetic circuit multiplexing motor together, the power of the motor is not limited by the power of a single converter, the requirement of a driving system for ultrahigh power is met, and a plurality of driving branches meet the redundancy requirement of the driving system.
Fig. 2 is a specific schematic system diagram, in fig. 2, the core-magnetic circuit multiplexing motor is an m-group n-phase motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3, specifically, in fig. 2, an ac motor is shown, and in the case of a dc motor, the structural schematic diagram is shown in fig. 3, the motor windings have m groups, and each group of motor windings has n phases; in the case of a rotating electric machine, the construction is schematically shown in fig. 4, and again the machine windings have m groups, each group having n phases.
Referring to fig. 2, the number of the power supplies is m groups, the number of the converters is m, each converter has n phases, the m groups of power supplies respectively supply power to the m converters, and each converter outputs n-phase voltage current to each group of motor windings, as shown in fig. 5.
It should be noted that the power source may be any one of a battery, a capacitor, a battery-capacitor composite accumulator, a dc power grid, an ac power grid, or a combination of at least two of them.
The iron core magnetic circuit multiplexing redundant power driving system is suitable for practical application scenes with ultra-high power driving requirements, such as magnetic suspension trains, pure electric airplanes, hybrid electric airplanes, ship electric propulsion, linear motor driving and the like. The following description is made for different application scenarios by embodiments.
The method is applied to a driving system needing power redundancy and an ultra-high power driving system;
when the iron core magnetic circuit multiplexing motor is a rotating motor, the rotating motor is a motor with m groups of n-phase windings;
when the iron core magnetic circuit multiplexing motor is a linear motor, a stator of the linear motor is formed by connecting j modules in series, each module is provided with m groups of n-phase windings, j is a positive integer larger than 1, and the linear motor can be a single-side linear motor, a double-side linear motor or a multi-side linear motor.
As shown in fig. 6, the iron core magnetic circuit multiplexing motor takes a permanent magnet double-side long stator linear motor as an example, the permanent magnet double-side long stator linear motor is provided with m groups of n-phase motor windings, a power supply is an accumulator, and the accumulator is provided with m groups; in FIG. 6, m is 12 and n is 6;
the stator of the permanent magnet double-side long stator linear motor is formed by connecting j modules in series, namely eta 6 334, connected in series by 334 modules, each having 12 sets of 6-phase motor windings, and having a total length of about 800 m;
the drive branch further includes: an Alternating Current (AC) power supply, a K1 switch cabinet, a rectifier transformer, a phase-controlled rectifier, a K2 DC switch cabinet, 12 groups of K3 DC switch cabinets and 12 groups of n-phase inverters;
the alternating current power supply is sequentially connected with the K1 switch cabinet, the rectifier transformer, the phase control rectifier and the K2 direct current switch cabinet, and converts an Alternating Current (AC) power supply into direct current to be output;
the K2 direct current switch cabinet is respectively connected with 12 groups of electric accumulators, the 12 groups of electric accumulators are respectively used for storing electric energy, the 12 groups of electric accumulators are respectively connected with the 12 groups of K3 direct current switch cabinets, the 12 groups of K3 direct current switch cabinets are respectively connected with the 12 groups of 6-phase inverters, and the 12 groups of 6-phase inverters are respectively connected with the 12 groups of 6-phase inverters.
The driving system needing power redundancy and the ultra-high power driving system are suitable for a magnetic-levitation train, and convert electric power into traction power of the magnetic-levitation train so that the magnetic-levitation train moves.
The method is applied to an ultra-high power ship electric propulsion and linear motor driving system;
as shown in fig. 7, the whole system includes a main push system, a side push system and a linear motor driving system, specifically, the core magnetic circuit multiplexing motor of the main push system is a main push rotating motor, the core magnetic circuit multiplexing motor of the side push system is a side push rotating motor, and the core magnetic circuit multiplexing motor of the linear motor driving system is a linear motor;
the main push rotating motor is r groups of n-phase rotating motors, the r groups of n-phase rotating motors are provided with r groups of n-phase motor windings, r is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the side-push rotating motor is s groups of n-phase rotating motors, the s groups of n-phase rotating motors are provided with s groups of n-phase motor windings, and s is a positive integer greater than or equal to 2;
the linear motor is t groups of n-phase linear motors, the t groups of n-phase linear motors are provided with t groups of n-phase motor windings, and t is a positive integer greater than or equal to 2; the stator of the linear motor is formed by connecting j modules in series, each module is provided with t groups of n-phase motor windings, and j is a positive integer greater than 1;
the power supplies corresponding to the main push rotating motor and the side push rotating motor are power generation systems, and the power generation systems are conventional power generation or nuclear power generation;
the power supply corresponding to the linear motor is a combination of a power generation system, t groups of power accumulators, a power generation system and t groups of power accumulators;
the driving branch circuit further comprises: r + s + t groups of motor controllers;
r sets of motor controllers respectively control r sets of driving branches of the main push rotating motor;
the s groups of motor controllers respectively control s groups of driving branches of the side-push rotating motor;
the t groups of motor controllers respectively control t groups of driving branches of the linear motor;
the main-thrust rotating motor and the side-thrust rotating motor convert electric power into mechanical power, so that a propeller of the ship rotates to push the ship to move, and the linear motor converts the electric power into kinetic energy of linear motion.
(III) the method is applied to a pure electric aircraft propulsion system;
as shown in fig. 8, the core-magnetic circuit multiplexing motor is an m-set n-phase rotating electrical machine, m is a positive integer greater than or equal to 2, n is a positive integer greater than or equal to 3, and the core-magnetic circuit multiplexing motor has m sets of n-phase motor windings;
the power supply is a power accumulator which is provided with m groups,
the drive branch further includes: and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
The iron core magnetic circuit multiplexing motor converts electric power into mechanical power, so that a propeller of the airplane rotates, and flying power of the airplane is provided.
And (IV) the method is applied to a hybrid electric aircraft propulsion system.
As shown in fig. 9, the core-magnetic circuit multiplexing motor is an m-set n-phase rotating electrical machine, m is a positive integer greater than or equal to 2, n is a positive integer greater than or equal to 3, and the core-magnetic circuit multiplexing motor has m sets of n-phase motor windings;
the power supply is a combination of a power generation system, m groups of electrical storage devices, a power generation system and m groups of electrical storage devices, and the power generation system generates power for the internal combustion engine;
the drive branch further includes: and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
The hybrid electric aircraft propulsion system is different from a pure electric aircraft propulsion system in that a power generation system of the hybrid electric aircraft propulsion system can use an internal combustion engine to generate power to provide electric energy, can provide electric energy through a power storage device, and can provide electric energy through the combination of the power generation system and the power storage device. The iron core magnetic circuit multiplexing motor converts electric power into mechanical power, so that a propeller of the airplane rotates, and flying power of the airplane is provided.
According to the description of the embodiment, the iron core magnetic circuit multiplexing motor is taken as a core, and the topological structure is characterized in that a plurality of converters drive a single motor together, each converter drives a winding corresponding to the motor, and the converter has the functional characteristics of a small-horse-drawn cart (the converter has low power and the motor has ultrahigh power); the existence of a plurality of driving branches has the functional characteristics of independent driving, independent protection, independent cutting-off, no expansion of fault protection range and the like of a single branch; the requirements for the voltage and current power of a single power electronic device, a storage device and switch equipment are greatly reduced, and the current transformer can adopt the existing mature technology.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A core magnetic circuit multiplexing redundant power drive system is characterized by comprising:
the system comprises an iron core magnetic circuit multiplexing motor, at least two converters and at least two groups of power supplies;
the iron core magnetic circuit multiplexing motor comprises at least two groups of motor windings and a magnetic circuit multiplexing iron core;
the at least two groups of power supplies, the at least two converters and the at least two groups of motor windings form at least two driving branches, and each driving branch is provided with one group of power supplies, one converter and one group of motor windings;
the at least two driving branches respectively provide electromagnetic fields, and the magnetic circuit multiplexing iron core is used as a magnetic circuit multiplexing channel of the electromagnetic fields.
2. The core magnetic circuit multiplexing redundant power drive system of claim 1,
the iron core magnetic circuit multiplexing motor is an m-group n-phase motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the number of the power supplies is m groups, the number of the current transformers is m, and each current transformer is provided with n phases;
and m groups of power supplies respectively supply power to m converters, and each converter outputs n-phase voltage current to each group of motor windings.
3. The core magnetic circuit multiplexing redundant power drive system of claim 2,
the power supply is any one or the combination of at least two of a battery, a capacitor, a battery-capacitor composite accumulator, a direct current power grid and an alternating current power grid.
4. The iron core magnetic circuit multiplexing redundant power drive system of claim 1, applied to drive systems requiring power redundancy and ultra-high power drive systems,
the iron core magnetic circuit multiplexing motor is a motor with m groups of n-phase windings.
5. The core magnetic circuit multiplexing redundant power drive system of claim 4,
when the iron core magnetic circuit multiplexing motor is a rotating motor, the rotating motor is a motor with m groups of n-phase windings;
when the iron core magnetic circuit multiplexing motor is a linear motor, a stator of the linear motor is formed by connecting j modules in series, each module is provided with m groups of n-phase windings, j is a positive integer greater than 1, and the linear motor can be a single-side linear motor, a double-side linear motor or a multi-side linear motor.
6. The iron core magnetic circuit multiplexing redundant power driving system of claim 1, applied to ultra-high power ship electric propulsion and linear motor driving system,
the iron core magnetic circuit multiplexing motor comprises a main push rotating motor, a side push rotating motor and a linear motor;
the main push rotating motor is r groups of n-phase rotating motors, the r groups of n-phase rotating motors are provided with r groups of n-phase motor windings, r is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the side-push rotating motor is s groups of n-phase rotating motors, the s groups of n-phase rotating motors are provided with s groups of n-phase motor windings, and s is a positive integer greater than or equal to 2;
the linear motor is t groups of n-phase linear motors, the t groups of n-phase linear motors are provided with t groups of n-phase motor windings, and t is a positive integer greater than or equal to 2.
7. The core magnetic circuit multiplexing redundant power drive system of claim 6,
the stator of the linear motor is formed by connecting j modules in series, each module is provided with t groups of n-phase motor windings, and j is a positive integer greater than 1.
8. A core magnetic circuit multiplexing redundant power drive system according to claim 6 or 7,
the power supplies corresponding to the main push rotating motor and the side push rotating motor are power generation systems;
the power supply corresponding to the linear motor is the power generation system, the t groups of power accumulators, and the combination of the power generation system and the t groups of power accumulators;
the driving branch circuit also comprises r + s + t groups of motor controllers;
r groups of the motor controllers respectively control r groups of driving branches of the main push rotating motor;
the s groups of motor controllers respectively control s groups of driving branches of the side-push rotating motor;
and the t groups of motor controllers respectively control t groups of driving branches of the linear motor.
9. The core magnetic circuit multiplexing redundant power drive system of claim 1, applied to a pure electric aircraft propulsion system,
the iron core magnetic circuit multiplexing motor is an m-group n-phase rotating motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the power supply is an accumulator, and the accumulator is provided with m groups;
the driving branch circuit also comprises m groups of motor controllers;
and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
10. The core magnetic circuit multiplexing redundant power drive system of claim 1, applied to a hybrid electric aircraft propulsion system,
the iron core magnetic circuit multiplexing motor is an m-group n-phase rotating motor, m is a positive integer greater than or equal to 2, and n is a positive integer greater than or equal to 3;
the iron core magnetic circuit multiplexing motor is provided with m groups of n-phase motor windings;
the power supply is a power generation system, m groups of electrical storage devices and a combination of the power generation system and the m groups of electrical storage devices;
the driving branch circuit also comprises m groups of motor controllers;
and m groups of motor controllers respectively control m groups of driving branches of the m groups of n-phase rotating motors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110154340.XA CN114865982A (en) | 2021-02-04 | 2021-02-04 | Iron core magnetic circuit multiplexing redundant power driving system |
| PCT/CN2021/121595 WO2022166229A1 (en) | 2021-02-04 | 2021-09-29 | Iron core and magnetic circuit multiplexing redundant power driving system |
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| CN202110154340.XA CN114865982A (en) | 2021-02-04 | 2021-02-04 | Iron core magnetic circuit multiplexing redundant power driving system |
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| JP2011155801A (en) * | 2010-01-28 | 2011-08-11 | Aida Engineering Ltd | Motor control system and method |
| CN202276306U (en) * | 2011-09-19 | 2012-06-13 | 北京工业大学 | Binary-channel redundancy brushless direct current motor driver |
| CN102594228B (en) * | 2012-03-01 | 2016-01-20 | 沈阳永磁电机制造有限公司 | Multiphase permanent magnet brushless DC motor on electric airplane or electric ship |
| CN105186817A (en) * | 2015-08-18 | 2015-12-23 | 重庆大学 | Winding design aimed at winding switching device of permanent magnet synchronous motor |
| CN106452218B (en) * | 2016-12-09 | 2019-01-29 | 华中科技大学 | A kind of modularization three-phase multiterminal motor and its drive control method |
| CN109391216B (en) * | 2017-08-08 | 2022-03-25 | 上海理工大学 | Multiple control method for electric drive device |
| CN111679225B (en) * | 2020-08-11 | 2021-03-16 | 南京理工大学 | Electric drive system open-circuit fault diagnosis method based on fuzzy logic theory |
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