| 铁磁损耗对直接转矩控制低速性能的影响及补偿方法研究 |
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| 引用本文： | 蔡斌军,刘国荣.铁磁损耗对直接转矩控制低速性能的影响及补偿方法研究[J].电气自动化,2009,31(3):12-13,19. |
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| 作者姓名： | 蔡斌军 刘国荣 |
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| 作者单位： | 湖南工程学院,湖南湘潭,411105 |
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| 基金项目： | 湖南省科技厅计划项目，湖南省科技厅计划项目 |
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| 摘 要： | 为了探讨铁磁损耗对直接转矩控制（DTC）性能的影响，在两相静止坐标系下建立了考虑铁磁损耗的异步电机动态等效数学模型。基于考虑和不考虑铁磁损耗两种情况对传统DTC控制性能进行了分析比较，结果表明铁磁损耗会造成电机低速时的实际输出转矩减小，电机的动态响应速度变慢。并在基于考虑铁磁损耗的情况下提出一种对铁磁损耗补偿的方法，使传统的估算转矩更接近于实际输出转矩，提高了转矩控制性能。实验结果证明了补偿控制方法的有效性，并能改善DTC系统的低速性能。
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| 关 键 词： | 铁磁损耗 直接转矩控制 等效模型 补偿 低速性能 |
Study of Compensation Method and Iron Loss Influence on DTC Low-speed Performance |
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| Cai BinJun,Liu Guorong.Study of Compensation Method and Iron Loss Influence on DTC Low-speed Performance[J].Electrical Automation,2009,31(3):12-13,19. |
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| Authors: | Cai BinJun Liu Guorong |
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| Affiliation: | Cai BinJun Liu Guorong (Hunan Institute of Engineering,Xiangtan Hunan 411105,China) |
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| Abstract: | In order to study the effect of iron loss to direct torque control performance. The dynamic equivalent mathematical model of inductor motor considering iron loss is established under two-phase static coordinates. And the performance caused by conventional DTC controller between the inductor motor model taking no account of iron loss and the one taking iron loss into account is analyzed contrastively.It is manifested that the iron loss would caused torque decreasing at low speed and slower speed response of ... |
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| Keywords: | iron loss direct torque control equivalent model compensator low-speed performance |
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