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Composite current driving high pushing force density nine phase plane motor and driver thereof

A composite current, high thrust technology, applied in the direction of motor control, electric components, electrical components, etc., can solve the problems of small plane motion range, low winding utilization rate, low system efficiency, etc., to achieve large motion range, good dynamic characteristics, high efficiency effect

Inactive Publication Date: 2009-03-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing problems of planar motors such as complex structure, small planar movement range, low utilization rate of windings, low thrust density, and low system efficiency, the present invention proposes a composite current-driven high thrust density nine-phase planar motor and its driver

Method used

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  • Composite current driving high pushing force density nine phase plane motor and driver thereof
  • Composite current driving high pushing force density nine phase plane motor and driver thereof
  • Composite current driving high pushing force density nine phase plane motor and driver thereof

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specific Embodiment approach 1

[0024] Specific Embodiment 1: The composite current-driven high thrust density nine-phase planar motor described in this embodiment includes an armature component and a permanent magnet excitation component. There is an air gap between the armature component and the permanent magnet excitation component, wherein the armature component includes Armature winding and armature core; permanent magnet excitation components including permanent magnet array and permanent magnet yoke plate; coil pitch τ in armature components t The pole distance τ of the permanent magnet array in the permanent magnet excitation part p Satisfy the relation 3nτ t =(3n±1)τ p , each planar motor is composed of i unit motors, each unit motor includes 9 coils and 2 permanent magnets, the 9 coils form a 3×3 matrix, each coil is a phase armature winding, a total of There are 9 phase armature windings, which are represented as; A phase, B phase, C phase, D phase, E phase, F phase, G phase, H phase, I phase ar...

specific Embodiment approach 2

[0025] Specific embodiment two: The composite current drive high thrust density nine-phase planar motor described in this embodiment includes an armature component and a permanent magnet excitation component, and an air gap is between the armature component and the permanent magnet excitation component, wherein the armature component includes Armature winding and armature core; permanent magnet excitation components including permanent magnet array and permanent magnet yoke plate; coil pitch τ in armature components t The pole distance τ of the permanent magnet array in the permanent magnet excitation part p Satisfy the relation 3nτ t =(3n±1)τ p , each planar motor is composed of i unit motors, each unit motor includes S coils and P permanent magnets, the P=2h 2 , S=9(m 2 +1) / 2; the flat permanent magnet yoke plate in each unit motor is evenly divided into 2h×2h permanent magnet cells, and the side length of the permanent magnet cells is the permanent magnet array pole pitc...

specific Embodiment approach 3

[0030] Specific implementation mode three: see Figure 4 , Figure 5 This embodiment will be described. This embodiment is an embodiment of the composite current-driven high thrust density nine-phase planar motor described in the second specific embodiment. This embodiment is composed of a motor unit, wherein m=3, h=4, n=3, and the motor has S = 45 coils and P = 32 permanent magnets, the coil distance τ in the armature assembly t The pole distance τ of the permanent magnet array in the permanent magnet excitation part p Satisfy the relation 9τ t =8τ p . see Figure 5 , since 3m and 2h are 9 and 8 respectively, which are coprime numbers, the flat permanent magnet yoke plate is evenly divided into 2h×2h permanent magnet unit cells, that is, 8×8 permanent magnet unit cells, and the 32 permanent magnets They are respectively fixed in the diagonally adjacent permanent magnet cells on the permanent magnet yoke plate, the permanent magnets are parallel or vertically non-adjace...

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Abstract

A recombination current driving high thrust density nine-phrase planar motor and a driver thereof relate to a recombination current driven high thrust density nine-phrase planar motor and a driver thereof, and belongs to the motor field. Permanent magnets are distributed in a plane matrix type and an armature coil is fixedly arranged on a plane-shaped armature magnet core. The armature coil is divided into nine groups, the coils of each group are connected in series and form nine phrase armature windings, and the nine phrase armature windings are connected in a star-shape manner. When the motor works, all that is required is to connect the nine phrase armature windings to nine driving current signal output ends of the invention, and each driving current is a combined current of an X direction current and a Y direction current. The motor of the invention has the advantages of small size, light weight, simple insulation among winding phrases, large output force in unit volume, quick dynamic response, small positioning force and large rotor motion range. The invention can be applied in the motor which needs two dimensional motions and the controlling field thereof.

Description

technical field [0001] The invention relates to a composite current-driven high-thrust density planar motor and a driver thereof, belonging to the field of motors. Background technique [0002] Modern precision and ultra-precision processing equipment has an urgent need for high-response, high-speed, high-precision planar drive devices, such as machining, electronic product production, mechanical loading and unloading, manufacturing automated instrumentation equipment, and even robot drives. Usually these devices are powered by a rotary motor, and then converted into linear motion by mechanical devices such as belts and ball screws. Due to the complexity of the mechanical device, the transmission accuracy and speed are limited, and frequent adjustments are required, resulting in high cost, poor reliability, and large volume. The original planar driving device was realized by two directly driven linear motors, and a stacked driving structure was adopted. This structure incre...

Claims

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Application Information

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IPC IPC(8): H02K16/00H02K41/00H02K57/00H02P31/00
Inventor 寇宝泉贵献国吴红星李立毅
Owner HARBIN INST OF TECH
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