Double permanent magnet power-frequency brushless synchronous generator

Abstract

The invention relates to a double permanent magnet power-frequency brushless synchronous generator. A composite stator, a permanent magnet rotor and a compensating rotor are arranged inside a power generator body, wherein the permanent magnet rotor and the compensating rotor are arranged at the lower end of the composite stator, the rear ends of the composite stator and the compensating rotor are provided with a permanent magnet exciter assembly and a signal sensor assembly, the lower ends of the permanent magnet exciter assembly and the signal sensor assembly are also respectively provided with a rotary AVR (Automatic Voltage Regulator), the permanent magnet exciter assembly comprises a permanent magnet exciter stator and a permanent magnet exciter rotor, and the signal sensor assembly comprises a signal sensor stator and a signal sensor rotor. According to the invention, by adopting a forward/reverse series compensation technology, the adaptability of power factor of the generator is improved; the defects of uncontrollable excitation and nonadjustable voltage of the traditional permanent magnet power-frequency brushless synchronous generator can be overcome by using the rotary AVRs, and the voltage adjusting level is improved; by adopting a permanent magnet excitation technology, compared with the electric excitation power-frequency brushless synchronous generator, the double permanent magnet power-frequency brushless synchronous generator has the advantages that the efficiency of the double permanent magnet power-frequency brushless synchronous generator can be improved by 4-8 percent, the size and the weight can be reduced by 30-40 percent, and the copper and iron consumables can be saved by about 20-30 percent.

Description

technical field [0001] The invention relates to a permanent magnet motor, in particular to a double permanent magnet power frequency brushless synchronous generator. Background technique [0002] At present, the widely used power frequency brushless synchronous generators are electric excitation power frequency brushless synchronous generators. After more than a century of development, the product technology has been very mature, and all countries have their own standards for this product. The national standard of this kind of products in our country is: JB / T10747-2007 "Technical Conditions of Integral Salient-pole Brushless Three-phase Synchronous Generator". [0003] Electric excitation power frequency brushless synchronous generators have good electrical performance indicators and can meet the requirements of various users for power supply quality. Heavy. However, the current permanent magnet power frequency synchronous generator has the advantages of small size, light...

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Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned problems, the present invention provides a method that can solve the shortcomings of the existing permanent magnet power frequency brushless synchronous generator that the excitation is uncontrollable, the voltage is not adjustable, and the steady-state voltage regulation rate is poor, and it can also improve the permanent magnet Double permanent magnet power frequency brushless synchronous generator with power factor adaptability of power frequency brushless synchronous generator

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