| 引用本文: | 杜吉飞,赵红雁,郑琼林.三相PWM整流器开关模式逻辑电流控制[J].电力自动化设备,2016,36(2): |
| DU Jifei,ZHAO Hongyan,ZHENG Trillion Q.Switching pattern logic current control for three-phase PWM rectifier[J].Electric Power Automation Equipment,2016,36(2): |
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| 摘要: |
| 提出一种新型三相脉宽调制（PWM）整流器非调制方法，即开关模式逻辑电流控制。该方法选择离给定电压矢量最近的空间矢量对应的开关模式作为输出，并运用比较器和逻辑运算实现整个控制过程。与传统滞环电流控制、空间矢量滞环电流控制相比，该方法能够在保证算法简便性的同时，明显减少交流侧电流谐波含量。通过对3种方法的仿真和实验结果进行分析，验证了所提方法的有效性、优越性。 |
| 关键词: 脉宽调制 整流器 开关模式 电流控制 逻辑运算 滞环 |
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| Switching pattern logic current control for three-phase PWM rectifier |
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DU Jifei, ZHAO Hongyan, ZHENG Trillion Q
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School of Electrical Engineering，Beijing Jiaotong University，Beijing 100044，China
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| Abstract: |
| A non-modulation scheme，the switching pattern logic current control，is proposed for three-phase PWM rectifier，which selects the corresponding switching pattern of the space vector closest to the reference voltage vector as the output and applies the comparators and logic operations to realize the whole control process. Compared with the conventional hysteresis-current control and space-vector hysteresis-current control，the proposed scheme has simpler algorithm and reduces significantly the harmonic contents of AC-side current. The simulative and experimental results of three control schemes are analyzed，which verifies the validity and superiority of the proposed scheme. |
| Key words: pulse width modulation electric rectifiers switching pattern electric current control logic operation hysteresis |
