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| 摘要: |
| 半自动弧焊发电机通常工作在平特性或降特性状态,工作于平特性时要求电压基本恒定,工作于降特性时要求电流基本恒定。数据采集模块采集焊接电流/电压,并送单片机分析处理,利用模糊控制理论,通过计算隶属度把电流/电压信号分成过强、强、中、弱和微弱5类,不同类型采用不同的控制策略来控制PWM信号的占空比,PWM信号调节发电机励磁回路电流,以达到对发电机输出电流和电压的控制,从而实现对半自动弧焊发电机的焊接电流/电压进行控制。 |
| 关键词: 半自动弧焊发电机,励磁电流,PWM,隶属度,控制策略 |
| DOI： |
| 分类号:TG434 |
| 基金项目: |
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| A control arithmetic based on output-current and output-voltage of semiautomatic arc welding generator |
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XIE Chuan
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| Abstract: |
| Semiautomatic arc welding generator usually works in state of level characteristic or vertical characteristic,when it works in state of level characteristic,its output-voltage is steady and when it works in state of vertical characteristic,its output-curr |
| Key words: the semiautomatic arc welding generator,excitation current,PWM,the subjectional pitch,control strategy |
