Rapid Design of Low-Voltage Motor Protector Based on Axiomatic Theory

Facing the diversified demands and design complexity, a systematic design method for low-voltage motor protector is proposed based on axiomatic design theory, which integrates with design constraints and expert's knowledge. Zigzagging mapping between functional requirements and design parameters is obtained by the top-to-down decomposition according to the customer's needs, and the hierarchy of independent functions is also built. Systematic chart and mapping process are also analyzed in order to simplify the design process for different designers. Finally, a case of motor protector of LM5 series is illustrated to verify the method’s feasibility and effectiveness.