First introduced in the present paper was the composing and working principle of a propeller electric propulsion system for stratosphere airship.After the study and anaysis of key technologies of the propeller electric propulsion system for stratosphere airship,a reasonable design concept and design method of the propeller electric propulsion system for stratosphere airship was also put forward.The feasibility of the REPMBLDCM electric propulsion technology was confirmed through the experimental test and the simulation of the designed electric propulsion system.Having met the requirements of propellers,this paper provides research approach and lays research foundation for the airborne confirmation of the technical specification of the propeller electric propulsion system.
Propulsion system is one of the most important parts of high altitude airship. It's really a need to build a simulation model of propulsion system and make some analysis about high altitude airship. An integrative model is established according to the matching of the torque between Rare earth permanent magnet Brushless DC motor[1∼2] and propeller in the use of Matlab/Simulink. Vast work is spent on making a plenty test of this integrative model. Also a series of analysis of the pull, torque and real absorb power generated by big inertia propulsion system in different working conditions is made in this passage. At last, the property envelop of this propulsion system is got. System efficient trend with the change of propeller diameter is got through simulating.
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.