순시전력 제어를 통한 스폿용접기의 용접품질 향상

The Improvement of Welding Quality of Spot Welder Via an Instantaneous Power Contorl

In this paper, the inverter spot welding system with high efficiency via an instantaneous power control is presented. In spot welding, instantaneous power control is utilized in order to attain less spatter and high welding performance. Also we proposed a PI controller for spot welder system using Evolution Strategy(ES) with varying search space. ES with varying search space which depends on fitness values at each generation is used to tune PI control parameters