| PWM逆变器相电流重构研究与误差分析 |
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| 引用本文： | 马鸿雁,孙凯,魏庆,黄立培.PWM逆变器相电流重构研究与误差分析[J].电工技术学报,2011(1):108-114,161. |
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| 作者姓名： | 马鸿雁 孙凯 魏庆 黄立培 |
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| 作者单位： | 清华大学电力系统及大型发电设备安全控制与仿真国家重点实验室;北京建筑工程学院电信学院; |
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| 基金项目： | 国家自然科学基金(50607012); 北京市教委科技发展计划(KM200710016008)资助项目 |
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| 摘 要： | 为了降低系统成本和体积,研究了脉宽调制(PWM)逆变器供电的电动机变频调速系统仅采用一个直流电流传感器获得交流相电流时存在的问题,通过修改逆变器开关状态的相电流重构方法满足了直流电流的采样要求,根据逆变器的开关状态实现了交流侧电动机相电流的重构.针对在该方法作用下重构相电流与实际相电流之间的误差,详细分析其产生的原因,...
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| 关 键 词： | PWM逆变器 相电流重构 永磁同步电动机 重构电流误差 直流电流传感器 |
Phase Current Reconstruction Method for PWM Inverter and Error Analysis |
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| Ma Hongyan, Sun Kai Wei Qing Huang Lipei.Phase Current Reconstruction Method for PWM Inverter and Error Analysis[J].Transactions of China Electrotechnical Society,2011(1):108-114,161. |
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| Authors: | Ma Hongyan Sun Kai Wei Qing Huang Lipei |
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| Affiliation: | Ma Hongyan1,2 Sun Kai1 Wei Qing1 Huang Lipei1(1.Tsinghua University Beijing 100084 China 2.Beijing University of Civil Engineering and Architecture Beijing 100044 China) |
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| Abstract: | In order to lower the cost and volume,the operation of getting alternating current(AC) link phase current in pulse width modulation(PWM) inverter fed AC machine variable frequency drive system with only a direct current(DC) link current sensor was investigated.The proposed method was to fulfill the requirements of DC-link current detection by adjusting inverter switching state and realize the reconstruction of AC phase currents according to the switching states of the inverter.The errors between the reconst... |
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| Keywords: | PWM inverter phase current reconstruction PMSM reconstructed phase current error DC-link current sensor |
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