| 基于模糊控制零电流钳位逆变器死区补偿 |
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| 引用本文： | 刘栋良,武瑞斌,张遥,王家军. 基于模糊控制零电流钳位逆变器死区补偿[J]. 电工技术学报, 2011, 0(8): 119-124 |
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| 作者姓名： | 刘栋良 武瑞斌 张遥 王家军 |
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| 作者单位： | 杭州电子科技大学自动化学院; |
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| 基金项目： | 浙江省自然科学基金(Y1080012,Y1100954); 浙江省科技厅重大专项(2009C11006)资助项目 |
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| 摘 要： | 逆变器死区对于交流伺服系统产生很多不利的影响,如逆变器输出电压的畸变,电动机转矩的脉动和过热等,特别是逆变器低频输出时的零电流钳位将导致系统的不稳定。本文提出了一种新型模糊补偿算法,该算法能够提供精确的零电流信息,可以实时计算逆变器死区导致的误差电压,并通过前馈方式对误差电压进行补偿。该方法应用于SVPWM逆变器系统可以达到精确的输出电压补偿,并且可有效地消除零电流钳位现象,降低系统在低频时输出电流的脉动。仿真与实验表明该算法有效、可行。
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| 关 键 词： | 零电流钳位 逆变器 死区 模糊补偿 |
Inverter Dead Time Compensation of Zero Current Clamping Based on Fuzzy Control |
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| Liu Dongliang Wu Ruibing Zhang Yao Wang Jajun. Inverter Dead Time Compensation of Zero Current Clamping Based on Fuzzy Control[J]. Transactions of China Electrotechnical Society, 2011, 0(8): 119-124 |
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| Authors: | Liu Dongliang Wu Ruibing Zhang Yao Wang Jajun |
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| Affiliation: | Liu Dongliang Wu Ruibing Zhang Yao Wang Jajun(Hangzhou Dianzi University Hangzhou 310027 China) |
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| Abstract: | Inverter dead time can cause many negative effects to ac servo system,such as waveform distortion,increased torque ripples,excessive heating of the motor.Especially,the zero current clamping of output current around zero is the serious problems at low frequency outputs.A new dead time delay compensation algorithm is proposed which can give more accurate zero current information and it can calculate error voltage caused by inverter dead time in the real time and compensation in the feedforward manner.By appl... |
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| Keywords: | Zero current clamping inverter dead time fuzzy compensation |
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