Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator

A wind turbine, transverse magnetic flux technology, applied in the magnetic circuit shape/style/structure, magnetic circuit rotating parts, magnetic circuit static parts and other directions, can solve the complex manufacturing process, high manufacturing process and cost, space utilization, etc. problems such as low rate, to achieve the effect of facilitating design and manufacturing, avoiding invalid situations, and improving power density

Inactive Publication Date: 2014-04-30
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, although many institutions at home and abroad have done a lot of research work on transverse flux generators, there are still some problems that need to be improved and solved.
For example, Dr. D. Svechkarenko of KTH University in Sweden proposed a new type of large-capacity transverse flux permanent magnet generator suitable for wind power generation. Calculation studies show that the motor has a high power factor, but the structure is extremely complicated and the manufacturing The process and cost are relatively high; Dr. Liu Zhemin of Shenyang University of Technology also conducted research on the application of permanent magnet transverse flux motors in the field of low-speed wind power generation, improved the structure of the stator core of transverse flux motors, and simplified its manufacturing process, but the motor The permanent magnet and space utilization rate are low; Professor Lin Heyun of Southeast University proposed a new type of magnetism-concentrating transverse flux permanent magnet wind generator, which improves the space utilization rate of the motor, but the utilization rate of the permanent magnet needs to be further improved
In short, the existing transverse flux permanent magnet motors or permanent magnets and motors have low space utilization, or the manufacturing process is complicated, the material cost is high, or the effective length ratio of the armature winding of the motor is not high. there is still room for improvement

Method used

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  • Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator
  • Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator
  • Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator

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Experimental program
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Embodiment 1

[0021] combine Figure 1~Figure 3 , for a single-phase inner rotor generator, the solid model of the rotor magnetism-concentrating transverse flux permanent disk wind turbine is mainly composed of the following parts: two sets of stator cores 1, N permanent magnets 2, N The rotor core 3 and two sets of armature windings 4 are composed, wherein N≥2. The two sets of stator cores 1 have the same size and are placed opposite to each other in mirror images. They are made of soft magnetic composite materials. The stator core 1 forms stator inner teeth and stator outer teeth in the radial direction, and the inner and outer teeth of the stator are arranged alternately along the circumferential direction. The length of a permanent magnet 2 in the circumferential direction; the armature winding 4 adopts a concentrated annular winding, and is placed in the stator slot formed by the inner and outer teeth of the stator core 1, and two sets of annular armature windings 4 are connected in se...

Embodiment 2

[0023] For a single-phase external rotor generator, the solid model of the rotor-concentrated transverse flux permanent disk wind turbine is mainly composed of the following parts: two sets of stator cores 1, two sets of armature windings 4 and two sets of The rotor as a whole, wherein each set of rotors as a whole includes N permanent magnets 2 and N rotor cores 3, where N≥2. The two sets of stator cores 1 have the same size, are placed back to back inside the motor, and are made of soft magnetic composite materials. The stator core 1 forms stator inner teeth and stator outer teeth in the radial direction, and the stator inner and outer teeth are staggered along the circumferential direction. , separated by the length of a permanent magnet 2 in the circumferential direction; the armature winding 4 adopts a centralized annular winding, and is placed in the stator slot formed by the inner and outer teeth of the stator core 1, and the two sets of annular armature windings 4 are c...

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Abstract

The invention discloses a rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator which comprises a whole stator and a whole rotor. The whole stator comprises two sets of stator cores and two sets of annular armature windings, and each set of stator core is composed of a stator yoke and stator teeth, wherein stator inner teeth and stator outer teeth are formed in the radial direction of the stator teeth, the stator inner teeth and the stator outer teeth are staggered in the circumferential direction, the distance between each stator inner tooth and the corresponding stator outer tooth in the circumferential direction is equal to the length of a permanent magnet in the circumferential direction, stator grooves are formed in the radial direction of the stator inner teeth and the stator outer teeth, the annular armature windings are arranged in the grooves, and the two sets of annular armature windings can be connected in series and also connected in parallel. The whole rotor is composed of N rotor cores and N permanent magnets, the rotor cores and the permanent magnets are arranged in the circumferential direction in sequence, the magnetic pole directions of permanent magnets adjacent in the circumferential direction are opposite in the circumferential direction, and N is larger than or equal to 2. The wind driven generator can avoid null work areas of the permanent magnets, the utilization rate of motor permanent magnets is improved, and power density of the motor is improved.

Description

technical field [0001] The invention belongs to the field of motors, and in particular relates to a rotor magnetism gathering type transverse flux permanent disk type wind power generator. Background technique [0002] The intensification of the energy crisis restricts the improvement of the global economy and threatens the sustainable development of human society. The vigorous development and utilization of new energy and renewable energy has become an important part of the energy development strategy of most countries in the world. Compared with other forms of renewable energy, wind power (Wind Power) has the highest maturity and the best economy. It is estimated that by 2020, the total installed capacity of wind power in the world will reach 760GW, and China will have about 230GW. The development momentum is rapid and the development and utilization prospects are broad. Wind generator (Wind Generator) is the key core equipment of wind power system, and its electrical and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/27
Inventor 颜建虎
Owner NANJING UNIV OF SCI & TECH
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