| 农业装备中三电平二极管箝位式逆变器拓扑结构的改进 |
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| 引用本文： | 刘国海,钱 鹏,陈兆岭,沈 跃,廖志凌.农业装备中三电平二极管箝位式逆变器拓扑结构的改进[J].农业工程学报,2013,29(22):189-195. |
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| 作者姓名： | 刘国海 钱 鹏 陈兆岭 沈 跃 廖志凌 |
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| 作者单位： | 江苏大学电气信息工程学院，镇江 212013; 机械工业设施农业测控技术与装备重点实验室，镇江 212013 |
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| 基金项目： | 国家自然基金资助项目，国家自然基金资助项目，江苏省高校自然研究面上项目(13KJB470004)。 |
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| 摘 要： | 传统的二极管箝位式(NPC)三电平逆变器结构中，中点电压波动过大将导致输出电压的谐波总畸变率（total harmonic distortion,THD）增大及开关器件损坏，影响了该结构在农业机电中的应用。该文提出了一种带中点电压自平衡的NPC三电平逆变器拓扑结构，通过在传统NPC三电平逆变器结构中加入一套由单相全桥逆变电路组成的电压主动补偿装置，对三相桥臂中点电压的波动进行主动补偿。实时检测三相桥臂中点电压，与给定值比较后，控制补偿装置实时产生补偿电压。不需要坐标变换，控制方案简单。同时对系统的稳定性进行了理论分析。仿真结果表明提出的拓扑结构能够将三相桥臂中点电压的波动控制在3%以下，并且在负载突变时，仍然能快速的平衡中点电压的波动，具有良好的动态性能。
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| 关 键 词： | 拓扑 电压 设计 三电平逆变器 二极管箝位式 中点电压 平衡 |
| 收稿时间： | 2013/5/30 0:00:00 |
| 修稿时间： | 2013/10/23 0:00:00 |
Improved neutral point clamped three-level VSI topology construction in agricultural device |
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| Liu Guohai,Qian Peng,Chen Zhaoling,shen yue and Liao Zhiling.Improved neutral point clamped three-level VSI topology construction in agricultural device[J].Transactions of the Chinese Society of Agricultural Engineering,2013,29(22):189-195. |
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| Authors: | Liu Guohai Qian Peng Chen Zhaoling shen yue and Liao Zhiling |
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| Institution: | 1. College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China2. Key Laboratory of Facility Agriculture Measurement and Control Technology and Equipment of Machinery Industry, Zhenjiang 212013, China;1. College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China2. Key Laboratory of Facility Agriculture Measurement and Control Technology and Equipment of Machinery Industry, Zhenjiang 212013, China;1. College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China2. Key Laboratory of Facility Agriculture Measurement and Control Technology and Equipment of Machinery Industry, Zhenjiang 212013, China;1. College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China2. Key Laboratory of Facility Agriculture Measurement and Control Technology and Equipment of Machinery Industry, Zhenjiang 212013, China;1. College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China2. Key Laboratory of Facility Agriculture Measurement and Control Technology and Equipment of Machinery Industry, Zhenjiang 212013, China |
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| Abstract: | |
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| Keywords: | topology voltage design three-level inverter neutral point clamped neutral-point voltage balance |
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