多逆变器驱动，在过调制过程中变压器绕组电压多电平对称

2017 5th International Symposium on Electrical and Electronics Engineering (ISEEE) Pub Date : 2017-10-01 DOI:10.1109/ISEEE.2017.8170638

V. Oleschuk, V. Ermuratskii

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引用次数: 4

摘要

采用空间矢量脉宽调制(PWM)改进技术和算法，保证了电压源逆变器电压波形的对称，并应用于基于变压器的三台逆变器的过调制调节，实现了变流器与电力变压器逆变器侧绕组之间的新型互连。仿真结果表明，与标准的过调制区变换器与电力变压器绕组互连方式相比，这种新型的变换器与电力变压器绕组互连方式保证了逆变侧绕组电压谱的提高。所分析的系统绕组电压的先进谐波谱保证了在过调制控制时电力变压器相应绕组的铜损降低。

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Multi-inverter drive with symmetrical multilevel winding voltage of transformer during overmodulation

Modified techniques and algorithms of space-vector pulsewidth modulation (PWM), assuring symmetrical voltage waveforms of voltage source inverters, have been disseminated for overmodulation adjustment of three inverters of transformer-based installation with new interconnection between converters and the inverter-side windings of power transformer. Simulation results show, that novel connection between convertors and windings of power transformer assures an advanced spectra of inverter-side winding voltages in comparison with standard interconnection between converters and windings of power transformer in the overmodulation zone. Advanced harmonic spectra of winding voltages of the analyzed system insure to decrease the copper losses in the corresponding windings of power transformer during overmodulation control.

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来源期刊

2017 5th International Symposium on Electrical and Electronics Engineering (ISEEE)

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