| 含模块化多电平变流器的分布式发电系统动态特性分析 |
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| 引用本文： | 赵岩,胡学浩,汤广福,贺之渊. 含模块化多电平变流器的分布式发电系统动态特性分析[J]. 电网技术, 2011, 0(7) |
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| 作者姓名： | 赵岩 胡学浩 汤广福 贺之渊 |
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| 作者单位： | 中国电力科学研究院; |
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| 摘 要： | 根据模块化多电平变流器(modular multilevel conv-erters,MMC)的工作原理和拓扑结构特点以及逆变型分布式发电系统(distributed generation,DG)的运行特点,建立了由MMC构成的DG等值系统及其交流电流控制器数学模型。运用PSCAD分析了基于MMC的DG系统动态特性,发现当直流电压大幅波动时,DG交流电流和输出功率同样出现了大幅波动的情况。针对这一问题,提出了改进的交流电流控制器,并通过仿真证明了该控制器的有效性。
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| 关 键 词： | 逆变型分布式发电系统 模块化多电平变流器 交流电流控制器 直流电压波动 |
Dynamic Characteristic Analysis of Distributed Generation System Based on Modular Multilevel Converters |
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| ZHAO Yan,HU Xuehao,TANG Guangfu,HE Zhiyuan. Dynamic Characteristic Analysis of Distributed Generation System Based on Modular Multilevel Converters[J]. Power System Technology, 2011, 0(7) |
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| Authors: | ZHAO Yan HU Xuehao TANG Guangfu HE Zhiyuan |
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| Affiliation: | ZHAO Yan,HU Xuehao,TANG Guangfu,HE Zhiyuan(China Electric Power Research Institute,Haidian District,Beijing 100192,China) |
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| Abstract: | According to the working principle and topological structure of modular multilevel converter(MMC) and condering the operational feature of distributed generation(DG) system,an equivalent inversion-type of DG system based on MMC and the mathematical model of its AC current controller are built.The dynamic characteristic of inversion-type of DG system is analyzed by PSCAD and it is found that under DC voltage fluctuation over wide range the AC current of inversion-type of DG system based on MMC and its output... |
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| Keywords: | inversion-type of distributed generation(DG) modular multilevel converters AC current controller DC voltage fluctuation |
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