| 分级变频的转矩平滑上升软起动器 |
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| 引用本文： | 胡红明,袁佑新,毛承雄. 分级变频的转矩平滑上升软起动器[J]. 华中科技大学学报(自然科学版), 2011, 39(9): 62-65 |
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| 作者姓名： | 胡红明 袁佑新 毛承雄 |
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| 作者单位： | 1. 武汉理工大学自动化学院,湖北武汉,430070
2. 湖北省电力安全与高效重点实验室,湖北武汉,430074 |
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| 基金项目： | 湖北省科技攻关项目(2006AA101B27) |
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| 摘 要： | 采用基于恒压频比的分级变频方法,通过有规律地开通或者关断工频电源,获得可调的电压频率和幅值.分频后的三相电压组合很多,为了获得平滑上升且足够大的起动转矩,采用傅里叶变换提取上述电压组合中的基波电压的幅值和初始相位,按照恒压频比策略进行控制,然后逐步提高频率并起动电机,进行仿真并搭建基于单片机的实验电路.主电路由3对反并...
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| 关 键 词： | 变频 软起动 基波 起动转矩 单片机 |
Soft starters with discrete variable frequency torque steady acceleration |
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| Hu Hongming Yuan Youxin Mao Chengxiong. Soft starters with discrete variable frequency torque steady acceleration[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2011, 39(9): 62-65 |
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| Authors: | Hu Hongming Yuan Youxin Mao Chengxiong |
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| Affiliation: | Hu Hongming1 Yuan Youxin1 Mao Chengxiong2(1 School of Automation,Wuhan University of Technology,Wuhan 430070,China,2 Hubei Electric Power Security and High Efficiency Key Lab,Wuhan 430074,China) |
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| Abstract: | Based on the discrete variable frequency method with constant U/f,the supply was conducted or cut off regularly to get discrete variable voltage frequency and amplify.For any frequency degrade discrete voltage,its combinations are numerous.In order to get the smoothly added and big torque,the fundamental wave voltage amplitude and initial phase were derived by using Fourier transformation.At the same time the frequency was gradually raised according constant U/f control tactics to start up the motor.The cor... |
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| Keywords: | variable frequency soft starting fundamental wave starting torque single chip microcomputer |
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