DESIGN, SIMULATION, IMPLEMENTATION AND CONTROL OF PLC BASED INTEGRAL CYCLE CONTROLLER FOR RESISTANCE SPOT WELDING APPLICATION

The Class of ac power controllers consists of Solid State Power Controller (SSPC) which connects and disconnects the load to the supply according to the required power. Two important voltage control techniques are commonly used for heating power control in ac power controller are Phase Control Switching and Integral Cycle Control. In case that a PCS is used for the resistive load, it can produce higher order harmonics and heavy inrush current while switching on in a cold start. In the proposed method, a disadvantage of phase controlled is removed. In this paper authors have reported simulated results, design methodology, implementation and Control of PLC Based Integral Cycle Control (ICC) method for Resistance Spot Welding (RSW).