桥臂复用型MMC的预充电控制策略
TM46; 桥臂复用型模块化多电平换流器(AM-MMC)可以有效减少换流器的体积和重量,其预充电控制策略研究亟待开展.为此,提出了分别适用于交流和直流场景的AM-MMC的预充电控制策略.在交流预充电场景下,通过分析桥臂间子模块电容电压的关系,并考虑子模块电容过压以及桥臂间子模块电容电压不均衡问题,提出一种包含不控充电阶段、可控充电阶段和阻断阶段的三阶段交流预充电控制策略,并提供了限流电阻的计算方法.在直流预充电场景下,推导冲击电流产生的原因,提出了一种基于直流电流的冲击电流抑制策略.基于MATLAB/Simulink的仿真结果表明,所提预充电控制策略可有效实现AM-MMC的平稳启动....
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| Published in | 电力自动化设备 Vol. 44; no. 10; pp. 77 - 84 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003%华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003
01.10.2024
华北电力大学 河北省分布式储能与微网重点实验室,河北 保定 071003 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-6047 |
| DOI | 10.16081/j.epae.202403023 |
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| Abstract | TM46; 桥臂复用型模块化多电平换流器(AM-MMC)可以有效减少换流器的体积和重量,其预充电控制策略研究亟待开展.为此,提出了分别适用于交流和直流场景的AM-MMC的预充电控制策略.在交流预充电场景下,通过分析桥臂间子模块电容电压的关系,并考虑子模块电容过压以及桥臂间子模块电容电压不均衡问题,提出一种包含不控充电阶段、可控充电阶段和阻断阶段的三阶段交流预充电控制策略,并提供了限流电阻的计算方法.在直流预充电场景下,推导冲击电流产生的原因,提出了一种基于直流电流的冲击电流抑制策略.基于MATLAB/Simulink的仿真结果表明,所提预充电控制策略可有效实现AM-MMC的平稳启动. |
|---|---|
| AbstractList | TM46; 桥臂复用型模块化多电平换流器(AM-MMC)可以有效减少换流器的体积和重量,其预充电控制策略研究亟待开展.为此,提出了分别适用于交流和直流场景的AM-MMC的预充电控制策略.在交流预充电场景下,通过分析桥臂间子模块电容电压的关系,并考虑子模块电容过压以及桥臂间子模块电容电压不均衡问题,提出一种包含不控充电阶段、可控充电阶段和阻断阶段的三阶段交流预充电控制策略,并提供了限流电阻的计算方法.在直流预充电场景下,推导冲击电流产生的原因,提出了一种基于直流电流的冲击电流抑制策略.基于MATLAB/Simulink的仿真结果表明,所提预充电控制策略可有效实现AM-MMC的平稳启动. |
| Abstract_FL | The arm multiplexing modular multilevel converter(AM-MMC) can effectively reduce the volume and weight of converter,and its pre-charging control strategy research is urgently needed. For this purpose,a pre-charging control strategy for AM-MMC suitable for AC and DC scenarios is proposed. Under the AC pre-charging scenario,by analyzing the relationship of sub-module capacitance voltage between arms while simultaneously taking into account the problems of sub-module capacitance overvoltage and sub-module capacitance voltage imbalance between arms,a three-stage AC pre-charging control strategy including uncon-trolled charging stage,controllable charging stage and blocking stage is proposed,and a current limiting resistance calculation method is provided. Under the DC pre-charging scenario,the reasons of inrush cur-rent are deduced,a strategy for suppressing inrush current based on DC current is proposed. The simulative results based on MATLAB/Simulink show that the proposed pre-charging control strategy can effectively realize the smooth start-up of AM-MMC. |
| Author | 韩创 董阳 王毅 王琛 |
| AuthorAffiliation | 华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003%华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003;华北电力大学 河北省分布式储能与微网重点实验室,河北 保定 071003 |
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| Author_FL | WANG Yi DONG Yang HAN Chuang WANG Chen |
| Author_FL_xml | – sequence: 1 fullname: HAN Chuang – sequence: 2 fullname: WANG Chen – sequence: 3 fullname: WANG Yi – sequence: 4 fullname: DONG Yang |
| Author_xml | – sequence: 1 fullname: 韩创 – sequence: 2 fullname: 王琛 – sequence: 3 fullname: 王毅 – sequence: 4 fullname: 董阳 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.16081/j.epae.202403023 |
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| Keywords | AC pre-charging control 直流预充电控制 current limiting resistance 模块化多电平换流器 DC pre-charging control 交流预充电控制 arm multiplexing modular multilevel converter 限流电阻 桥臂复用 |
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| PublicationTitle | 电力自动化设备 |
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| Publisher | 华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003%华北电力大学 新能源电力系统国家重点实验室,河北 保定 071003 华北电力大学 河北省分布式储能与微网重点实验室,河北 保定 071003 |
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| Title | 桥臂复用型MMC的预充电控制策略 |
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