| 逆变器单极性电流SPWM控制与滞环控制比较 |
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| 引用本文： | 朱军卫,龚春英. 逆变器单极性电流SPWM控制与滞环控制比较[J]. 电力电子技术, 2004, 38(1): 26-29 |
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| 作者姓名： | 朱军卫 龚春英 |
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| 作者单位： | 南京航空航天大学,江苏,南京,210016 |
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| 摘 要： | 分析了电流滞环控制型及电流SPWM(正弦脉宽调制)控制倍频调制型逆变器的工作原理;讨论了这两种控制方式下逆变器的谐波分布,给出了各自滤波器的设计方法,并针对它们制作了两台300W原理样机。通过仿真与实验验证,与电流滞环控制型逆变器相比,电流SPWM控制倍频调制型逆变器具有谐波分布固定,滤波器设计简单的优点,在开关频率相同的条件下,要获得滤波后相同质量的输出波形,前者的滤波器大大小于后者。
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| 关 键 词： | 脉宽调制 滤波器 频谱分析/滞环控制 |
| 文章编号： | 1000-100X(2004)01-0026-04 |
| 修稿时间： | 2003-08-15 |
Performance Comparison of the Unipolar Current-SPWM Control and Hysteresis Control Inverter |
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| ZHU Jun-wei,GONG Chun-ying. Performance Comparison of the Unipolar Current-SPWM Control and Hysteresis Control Inverter[J]. Power Electronics, 2004, 38(1): 26-29 |
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| Authors: | ZHU Jun-wei GONG Chun-ying |
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| Abstract: | In the paper,the operating principle of current hysteresis control and current SPWM (Sinusoidal Pulse Width Modulation) control inverters is analyzed separately at first.Then harmonic distribution of the two kinds of inverters is discussed in detail and filter design technique is introduced.Two 300 W prototypes are made according to the two kinds of operating principle.Finally,the simulation and experimental results illustrate that the current SPWM control inverter hasthe advantages of fixed harmonic distribution,simple filter design,and the filter is smaller than that of the current hysteresis inverter to obtain same output voltage performance at the same switching frequency. |
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| Keywords: | PWM filter spectrum analysis/hysteresis control |
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