| 模块化多电平换流器小信号模型及开环响应时间常数分析 |
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| 引用本文： | 刘栋,汤广福,郑健超,贺之渊,杨岳峰,李强. 模块化多电平换流器小信号模型及开环响应时间常数分析[J]. 中国电机工程学报, 2012, 32(24): 1-8 |
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| 作者姓名： | 刘栋 汤广福 郑健超 贺之渊 杨岳峰 李强 |
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| 作者单位： | 中国电力科学研究院,北京市海淀区,100192 |
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| 基金项目： | 国家自然科学基金项目，中央国有资本经营预算重大技术创新及产业化资金项目 |
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| 摘 要： | 模块化多电平换流器(modular multi-level converter,MMC)由于其交直流电压由分散储能的子模块电容建立,因此分析其主电路参数与动态响应的关系非常困难。为给MMC-HVDC工程控制器的设计提供依据,分析此类系统一般运动模型和控制模型的建立过程,推导旋转坐标系下的子模块平均值受控源解耦模型和换流器状态空间方程;利用系统稳态工作点附近的小信号模型得到开环传递函数和动态响应表达式。最后针对中国电力科学研究院开发的MMC-HVDC动模仿真装置,利用经验公式和该文的方法分别计算开环响应时间常数,对比结果证明理论分析的正确性。
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| 关 键 词： | 模块化多电平换流器 开环传递函数 响应时间常数 动模仿真装置 |
Small Signal Modeling and Analysis of Open-loop Response Time Constant of MMC |
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| LIU Dong , TANG Guangfu , ZHENG Jianchao , HE Zhiyuan , YANG Yuefeng , LI Qiang. Small Signal Modeling and Analysis of Open-loop Response Time Constant of MMC[J]. Proceedings of the CSEE, 2012, 32(24): 1-8 |
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| Authors: | LIU Dong TANG Guangfu ZHENG Jianchao HE Zhiyuan YANG Yuefeng LI Qiang |
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| Affiliation: | (China Electric Power Research Institute,Haidian District,Beijing 100192,China) |
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| Abstract: | It is very hard to analyze the relationship between dynamic response and main circuit parameters of modular multi-level converter(MMC),because its AC and DC voltage is established by distributed sub-module capacitances.For providing basis for the design of the MMC controller,this paper presented the modeling method for MMC’s state space equation and open-loop transfer function from state variables to control variables,and presented the controlled source decoupled model of average sub-module in the rotating coordinate system.Based on the systematic research and experience in developing the 49-level MMC-HVDC dynamic simulator,comparison result shows that the modeling process is valid and could be used in design of a closed-loop controller for actual MMC-HVDC project. |
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| Keywords: | modular multilevel converter(MMC) openloop transfer function response time constant dynamic simulation device |
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