Control of a hybrid modular multilevel converter during grid voltage unbalance

Control of a hybrid modular multilevel converter during grid voltage unbalance
复制标题

电网电压不平衡时混合模块化多电平变流器的控制

DOI:
10.1049/cp.2015.0084
复制
发表时间:
2015
期刊:
--
影响因子:
--
通讯作者:
Amankwah E
Amankwah E
中科院分区:
--
文献类型:
--
作者:
Amankwah E

文献摘要

参考文献

被引文献

相似文献

最近提出的并联混合模块化多电平变换器被认为是一种低损耗、低元件数的变换器,其“主”桥具有软开关能力。该换流器具有类似的优点,其他新兴的模块化多电平换流器电路正在考虑高压直流输电。然而,在交流网络不平衡期间,各个“链节”与电网交换不等量的功率,这需要适当的补救措施。本文介绍了研究的转换器的性能,并提出了一个合适的控制方法,使转换器在电网电压不平衡的情况下运行。所提出的控制概念涉及在转换器的“链节”中使用不对称的三次谐波电压生成,以重新分配在各个“链节”和电网之间交换的功率。数学分析和仿真建模的结果,以支持所描述的工作。
The recently proposed parallel hybrid modular multilevel converter is considered to be a low loss, low component count converter with soft switching capability of the `main' bridge. The converter has similar advantages to other emerging modular multilevel converter circuits being considered for HVDC power transmission. However, during ac network unbalance the individual `chain-links' exchange unequal amounts of power with the grid which requires appropriate remedial action. This paper presents research into the performance of the converter and proposes a suitable control method that enables the converter to operate during grid voltage unbalance. The proposed control concept involves the use of asymmetric third harmonic voltage generation in the `chain-links' of the converter to redistribute the power exchanged between the individual `chain-links' and the grid. Mathematical analysis and simulation modelling with results are presented to support the work described.
DOI: 10.1049/cp.2010.0093
发表时间: 2010-04
期刊: --
影响因子: --
作者:
R. Feldman;M. Tomasini;J. Clare;P. Wheeler;D. Trainer;R. Whitehouse
通讯作者: R. Feldman;M. Tomasini;J. Clare;P. Wheeler;D. Trainer;R. Whitehouse
DOI: 10.1109/apec.2012.6166159
发表时间: 2012-03
期刊: 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
影响因子: --
作者:
Emmanuel Amankwah;J. Clare;Patrick Wheeler;A. Watson
通讯作者: Emmanuel Amankwah;J. Clare;Patrick Wheeler;A. Watson
高压直流输电并联混合模块化多电平电压源换流器的实验验证
DOI: 10.1109/apec.2013.6520512
发表时间: 2013
期刊: 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
影响因子: --
作者:
Emmanuel Amankwah;Alan J. Watson;R. Feldman;Jon C. Clare;Patrick W. Wheeler
通讯作者: Patrick W. Wheeler
用于 HVDC 应用的并联混合模块化多电平电压源转换器中的单元电容器电压控制
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
Emmanuel Amankwah;J. Clare;P. Wheeler;A. Watson
通讯作者: A. Watson
一种用于高压直流输电和无功补偿的低损耗模块化多电平电压源换流器
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者:
R. Feldman;M. Tomasini;J. Clare;P. Wheeler;D. Trainer;R. Whitehouse
通讯作者: R. Whitehouse