Study on Optimization of Electromagnetic Relay's Reaction Torque Characteristics Based on Adjusted Parameters

概要

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The cooperative characteristics of electromagnetic relays attraction torque and reaction torque are the key property to ensure its reliability, and it is important to attain better cooperative characteristics by analyzing and optimizing relays electromagnetic system and mechanical system. From the standpoint of changing reaction torque of mechanical system, in this paper, adjusted parameters (armatures maximum angular displacement αarm_max, initial return springs force Finiti_return_spring, normally closed (NC) contacts force FNC_contacts, contacts gap δgap, and normally opened (NO) contacts over travel δNO_contacts) were adopted as design variables, and objective function was provided for with the purpose of increasing breaking velocities of both NC contacts and NO contacts. Finally, genetic algorithm (GA) was used to attain optimization of the objective function. Accuracy of calculation for the relays dynamic characteristics was verified by experiment.
（社）電子情報通信学会の論文
2009-08-01