888贵宾会APP下载

   Home > Product > DPM Power Frequency Brushless Synchronous Genset
DPM Power Frequency Brushless Synchronous Genset
Dual Permanent Magnet Power Frequency Brushless Synchronous Genset
1 Technical principle
The double permanent magnet generator adopts the principle of voltage series compensation The main permanent magnet generator and the stator winding of the electric excitation compensation generator are connected together in series, and are arranged in a common stator core The rotor of the permanent magnet generator and the rotor of the electric excitation compensation generator are independent, respectively, and provide excitation magnetic flux respectively However, the permanent magnet rotor provides fixed magnetic flux; the rotor of the compensated generator provides varying flux and is automatically adjusted according to the motor voltage
 
The automatic adjustment of the magnetic flux of the compensated rotor is accomplished by rotating the AVR according to the voltage signal to rotate the sensor to sense the voltage level for positive and reverse excitation regulation The voltage is higher than the given value, the permanent magnet excitation machine by rotating the AVR to compensate the reverse excitation of generator rotor, the generator voltage reverse voltage compensation, and the main issue of a permanent magnet generator is negative, the series superpose synthetic voltage drop; on the contrary, the voltage is lower than the given value, positive excitation, voltage compensation the generator voltage and a permanent magnet generator in the same direction, positive series superpose synthetic voltage increases So as to achieve the purpose of constant double permanent magnet generator voltage
 
The working principle of the double permanent magnet generator is shown in the following figure
 
2 Advanced technology
Double high frequency permanent magnet brushless synchronous generator is a new type of hybrid excitation permanent magnet brushless synchronous generator, which has the advantages of the original permanent magnet AC brushless synchronous generator has the advantages of small size, light weight, high efficiency, and overcomes the voltage can not be adjusted, uncontrollable, steady pressure difference and rate charged the perceptual load power factor only for the poor [cos =09] (lag) defect; double permanent magnet high frequency brushless synchronous generator has the electrical performance and power frequency electric excitation brushless synchronous generator is also excellent,
 
Main performance advantages:
1) high efficiency and efficiency is 4% to 10% higher than that of electric excitation generator;
2) small size, light weight, smaller than the electric excitation generator, the volume weight is 20% to 30%;
3) the power supply quality is good, the voltage precision is high, the steady state voltage adjustment rate is + 1%;
4) dynamic performance is good, start asynchronous motor ability, can start 100%PH no-load asynchronous motor;
5) load adaptability is good, not only can live inductive load, but also can carry capacitive load;
6) electromagnetic compatibility is good, radio interference is small;
 
3 Main technical parameters and performance indicators
Power range 10kW to 120kW
Rated speed 1500r/min
Steady state voltage regulation rate + 1%
Transient voltage regulation rate 20%15%
Voltage recovery time 05S
Voltage fluctuation rate 05%
The efficiency is more than 90%
Power factor + 08
 
4 Potential military use
Dual permanent magnet power frequency brushless synchronous generator can be used as a military mobile power and fixed power supply It can make the military power smaller and reduce fuel consumption and pollutant emissions
 
5 Key supporting materials
 
1) New product identification
In February 25, 2012, the double permanent magnet power frequency brushless synchronous generator has passed the new product appraisal organized by the China machinery industry federation (see Appendix "certificate of identification")
 
The appraisal committee that: the product development is successful, comply with technical requirements, the performance indicators have reached the international advanced level of similar products, the generator voltage adjusting efficiency, transient rate and recovery time and other performance indicators have reached the leading domestic and foreign similar products, agreed through the identification of products
 
2) Patents
There are 5 patents, 12 new utility models, 6 design patents, 23 patent applications of double permanent magnet power frequency brushless synchronous generators, and they are declaring patent in Europe and america
 
6 State authority inspection data
July 28, 2011 double frequency permanent magnet brushless synchronous generator and motor through the national quality supervision and Inspection Center for comprehensive evaluation test, test results show that all the performance indexes and functional requirements are to meet the Q/ATS 0101---2010 requirements of "double frequency technology" no permanent magnet brushless three-phase synchronous generator See the attached "test report"
 
7 Evaluation
Dual permanent magnet power frequency brushless synchronous generator has compact structure, small size, light weight, high efficiency, good power supply quality, and can make military power supply miniaturization Double frequency permanent magnet brushless synchronous generator is a green energy saving motor products a new high efficiency and low operation cost, very suitable for vehicle power and military power, in order to improve the efficiency of power supply and power density, enhance its maneuverability