基于MMC-PET的直流微电网综合控制策略

赵振民; 程静; 王维庆; 张陵; 南东亮

doi:10.19912/j.0254-0096.tynxb.2021-0144

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (10) : 458-464. DOI: 10.19912/j.0254-0096.tynxb.2021-0144

基于MMC-PET的直流微电网综合控制策略

赵振民¹, 程静^1,2, 王维庆^1,2, 张陵³, 南东亮^1,3

作者信息 +

RESEARCH ON DC MICROGRID LOMPREHENSIVE CONTROL STRATEGY BASED ON MMC-PET

Zhao Zhenmin¹, Cheng Jing^1,2, Wang Weiqing^1,2, Zhang Ling³, Nan Dongliang^1,3

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文章历史 +

摘要

为提升智能配电网电能质量,提出一种基于模块化多电平型电力电子变压器的直流微网构架及其综合控制策略,对分布式电源并网方式进行简化,设计MMC-PET及风光储系统的控制器,对智能配电网中电压深度跌落、三相不平衡等电能质量问题进行治理。在PSCAD/EMTDC平台搭建基于MMC-PET的直流微网风光储系统仿真模型,进行仿真分析总结,结果表明该方法很大程度地提高了新能源接入适应性,具备更快的动态响应速度和更强的鲁棒性,能有效改善智能配电网电能质量。

Abstract

In order to improve the power quality of the smart distribution network, a DC microgrid architecture based on the MMC-PET and its integrated control strategy are proposed. The grid connection mode of distributed power supply is simplified. The controller of MMC-PET, wind and solar storage system is designed to deal with power quality problems such as deep voltage drop and three-phase imbalance in the intelligent distribution network. The MMC-PET based DC microgrid wind and solar storage system simulation model was built on the PSCAD/EMTDC platform, and the simulation analysis is summarized. The results show that the method greatly improved the adaptability of new energy access, and had a faster dynamic response speed and stronger robustness, by which the power quality of smart distribution networks can be effectively improved.

关键词

直流微网 / 电能质量 / 新能源 / 电力电子变压器 / 模块化多电平变流器 / 控制策略

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赵振民, 程静, 王维庆, 张陵, 南东亮. 基于MMC-PET的直流微电网综合控制策略[J]. 太阳能学报. 2022, 43(10): 458-464 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0144

Zhao Zhenmin, Cheng Jing, Wang Weiqing, Zhang Ling, Nan Dongliang. RESEARCH ON DC MICROGRID LOMPREHENSIVE CONTROL STRATEGY BASED ON MMC-PET[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 458-464 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0144

中图分类号： TM421 TM72

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