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Designing and calculating method of single-layer concentric type unequal-turns winding

A design calculation, concentric technology, applied in the shape/style/structure of winding conductors, electrical components, electromechanical devices, etc., can solve the design calculation method of unequal-turn windings that do not involve single-layer windings, etc., to save The effect of design time, high calculation accuracy and convenient calculation

Active Publication Date: 2017-08-22
SHANGHAI MOTOR SYST ENERGY SAVING ENG TECH RES CENT +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The above research results are all in the scope of the unequal turn winding of the double layer winding, and none of them involve the design calculation method of the unequal turn winding of the single layer winding

Method used

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  • Designing and calculating method of single-layer concentric type unequal-turns winding
  • Designing and calculating method of single-layer concentric type unequal-turns winding
  • Designing and calculating method of single-layer concentric type unequal-turns winding

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Embodiment Construction

[0025] In order to make the present invention more obvious and easy to understand, preferred embodiments are described in detail as follows.

[0026] The structure of the single-layer winding determines that it must be a full-pitch winding, but in order to save the amount of material at the end, it is generally connected into a concentric winding, a cross winding or a chain winding with a short distance at the end. Since the number of slots per pole and phase of the chain winding is 2, the unequal-turn winding and the equal-turn winding of the chain winding are exactly the same, and the purpose of reducing the harmonic content is not achieved. Therefore, this method is more suitable for each pole and each phase slot. Crossed windings and concentric windings with a number greater than 2. The number of conductors per slot of a single-layer unequal-turn winding may be different, so the cross winding should be changed to a concentric winding form when designing the winding type. ...

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Abstract

The objective of the invention is to provide a designing and calculating method of single-layer concentric type unequal-turns winding of a motor, wherein calculation is convenient, calculation precision is high and calculation period is short. The method is advantageous in that the universality is high, and harmonic ratio leakage permeance of the single-layer concentric type unequal-turns winding of a three-phase asynchronous motor of any integer of grooves can be calculated; the calculation is convenient without needing other calculation software of finite elements for auxiliary calculation; programming is easily calculated and design time is saved; and a calculation process is free from experience formulas and the calculation accuracy is high.

Description

technical field [0001] The invention relates to a design and calculation method of a single-layer concentric unequal-turn full-pitch winding. Background technique [0002] Three-phase asynchronous motors have a large quantity and a wide range, and the annual power consumption accounts for more than half of the country's total power generation, so the in-depth research on three-phase asynchronous motors is of great significance. With the rapid growth of global energy consumption year by year, major developed countries such as the United States, the European Union, Canada, and Australia are constantly improving the efficiency of electric motors in their respective development plans. In October 2008, the IEC organization of the International Electrotechnical Commission officially released the IEC60034-30 "Energy Efficiency Classification of Single-speed, Three-Phase Cage Induction Motors" standard, unifying the global motor efficiency standards, and first proposed the concept o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/12H02K3/04H02K3/28
CPCH02K3/04H02K3/28H02K17/12H02K2213/03
Inventor 王鸿鹄黄坚姚丙雷顾德军金晶顾卫东
Owner SHANGHAI MOTOR SYST ENERGY SAVING ENG TECH RES CENT
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