[1]孙 勇,饶 睿.面向高压电机驱动的模块化多电平变流器低频控制研究[J].机械与电子,2023,41(08):60-64.
　SUN Yong,RAO Rui.Research on Low Frequency Control of Modular Multilevel Converter for High Voltage Motor Drive[J].Machinery & Electronics,2023,41(08):60-64.
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面向高压电机驱动的模块化多电平变流器低频控制研究()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
41
期数:
2023年08期
页码:
60-64
栏目:
机电一体化技术
出版日期:
2023-08-25

文章信息/Info

Title:
Research on Low Frequency Control of Modular Multilevel Converter for High Voltage Motor Drive
文章编号:
1001-2257 ( 2023 ) 08-0060-05
作者:
孙 勇 1 ; 饶 睿 2
1. 国网江苏省电力有限公司,江苏 南京 210096 ;
2. 南京理工大学,江苏 南京 210094
Author(s):
SUN Yong1 ;  RAO Rui2
( 1.State Grid Jiangsu Electric Power Co. , Ltd. , Nanjing 210096 , China ;
2.Nanjing University of Science and Technology , Nanjing 210094 , China )
关键词:
模块化多电平变流器; 低频运行; 类两电平调制; 高压电机
Keywords:
modular multilevel converter ;  low frequency operation ;  quasi two-level modulation ;  high voltage motor drive
分类号:
TM46
文献标志码:
A
摘要:
为了解决模块化多电平变换器( MMC )在低频工况下的子模块电压波动大的问题,提出了一种基于类两电平调制的低频控制方法,大大降低了低频运行下的子模块直流电压纹波。首先在桥臂能量波动基础上分析了 MMC 子模块电压波动机理,然后引入中频自由控制变量来进行补偿控制,推导了注入的中频电压和电流大小的公式,并详细介绍了控制方法的具体实现方式,最终通过对比实验验证了该方法的可行性和有效性。
Abstract:
In order to solve the problem of large voltage fluctuation of sub-modules of modular multilevel converter ( MMC ) in low frequency operation , a low frequency control method based on quasi two level modulation is proposed , which greatly reduces the DC voltage ripple of sub modules in low frequency operation.Firstly , based on the energy fluctuation of the bridge arm , the voltage fluctuation mechanism of the MMC sub module is analyzed , and then the free control variable is introduced to compensate the control.The formula of the injected medium frequency voltage and current is derived , and the specific implementation of the control method is introduced in detail.Finally , the feasibility and effectiveness of the method are verified through comparative experiments.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2022-11-01
基金项目:国家电网有限公司总部管理科技项目( 4000-202118066A-0-0-00 )
作者简介:孙 勇 ( 1978- ),男,江苏南京人,硕士,高级工程师,研究方向为电力系统高电压管理。
更新日期/Last Update: 2023-09-08