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利用16位高性能单片机80C196KC为核心控制部件和模糊控制理论实现了工频电阻点焊的模糊控制。提出了比例因子和量化因子自动调节的模糊控制方案和实现方法,克服了普通模糊控制器容易出现的极限环振荡和稳态精度不高的缺点,同时具有响应速度快和动态性能好的优点,补偿了网压波动和负载阻抗等变化对点焊质量的影响。
Using 16-bit high-performance single-chip microcomputer 80C196KC as the core control components and fuzzy control theory to achieve a frequency-frequency resistance spot welding fuzzy control. Proposed a fuzzy control scheme and its realization method to automatically adjust the scale factor and the quantization factor, which overcomes the shortcoming that the limiter ring oscillation and the steady-state accuracy are prone to appear in the ordinary fuzzy controller, and has the advantages of fast response and good dynamic performance, Compensates for the effects of changes in net voltage fluctuation and load impedance on spot welding quality.