Quasi-Selective Harmonic Elimination (Q-SHE) Modulation-Based DC Current Balancing Method for Parallel Current Source Converters

Quasi-Selective Harmonic Elimination (Q-SHE) Modulation-Based DC Current Balancing Method for Parallel Current Source Converters
复制标题

用于并联电流源转换器的基于准选择性谐波消除 (Q-SHE) 调制的直流电流平衡方法

DOI:
10.1109/tpel.2018.2882463
复制
发表时间:
2019-08
影响因子:
6.7
通讯作者:
Chengshan Wang
Chengshan Wang
中科院分区:
工程技术1区
文献类型:
--
作者:
Jinwei He;Qiang Li;Changhao Zhang;Junfei Han;Chengshan Wang

文献摘要

参考文献

被引文献

相似文献

电流型变流器(CSC)的并联运行对于中压大功率变流应用是一种有吸引力的方法。为了在较低的开关频率(通常为几百赫兹)下保持对交流线路电流质量的良好控制,同时实现并联CSC的直流轨道电流平衡,提出了一种在线延迟角和旁路带宽调整的改进准选择性消谐(Q-SHE)调制方法。首先,通过调整相应的线路参考电流相对于电网电压的延迟角来调节每个CSC正轨直流电流。同时,通过在传统的SHE模式中注入较小的旁路脉冲来补偿负轨直流电流平衡误差。通过上述方法的协调控制,可以在稳态和暂态下实现准确的直流轨道电流平衡,并提高线路电流质量。
Parallel operation of current source converters (CSCs) is an attractive approach for medium-voltage high-power conversion applications. In order to achieve proper dc rail current balancing of parallel CSCs while maintaining a good control of ac line current quality at low switching frequency (typically at a few hundred hertz), an improved quasi-selective harmonic elimination (Q-SHE) modulation method with online delay angle and bypass band adjustment is proposed. At first, each CSC positive rail dc current is regulated by tuning the delay angle of the corresponding line reference current with respect to the grid voltage. At the same time, the negative rail dc currents balancing errors are compensated by injecting small bypass pulses into the conventional SHE pattern. By the coordinated control of the aforementioned methods, an accurate dc rail currents balancing and an enhanced line current quality can be achieved at both the steady and the transient states.
DOI: 10.1109/ecce.2011.6064322
发表时间: 2011-11
影响因子: 6.7
作者:
Hua Zhou;Y. Li;N. Zargari;Zhongyuan Cheng
通讯作者: Hua Zhou;Y. Li;N. Zargari;Zhongyuan Cheng
DOI: 10.1109/tpel.2017.2663779
发表时间: 2018
影响因子: 6.7
作者:
Q. Wei;Bin Wu;D. Xu;N. Zargari
通讯作者: Q. Wei;Bin Wu;D. Xu;N. Zargari
DOI: 10.1109/tia.1986.4504837
发表时间: 1986-11
影响因子: 4.4
作者:
C. Namuduri;P. Sen
通讯作者: C. Namuduri;P. Sen
DOI: 10.1109/tia.1974.349239
发表时间: 1974-09
影响因子: 4.4
作者:
H. Patel;R. Hoft
通讯作者: H. Patel;R. Hoft
DOI: 10.1109/tpel.2018.2790950
发表时间: 2018-01
影响因子: 6.7
作者:
L. Ding;Y. Li
通讯作者: L. Ding;Y. Li