| 模块化多电平换流器的快速电压模型预测控制策略 |
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| 引用本文： | 公铮,伍小杰,戴鹏.模块化多电平换流器的快速电压模型预测控制策略[J].电力系统自动化,2017,41(1):122-127. |
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| 作者姓名： | 公铮 伍小杰 戴鹏 |
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| 作者单位： | 中国矿业大学信息与电气工程学院, 江苏省徐州市 221116,中国矿业大学信息与电气工程学院, 江苏省徐州市 221116,中国矿业大学信息与电气工程学院, 江苏省徐州市 221116 |
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| 基金项目： | 国家自然科学基金资助项目(51377160)；江苏省普通高校研究生科研创新计划资助项目(KYLX_1384) |
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| 摘 要： | 针对传统模型预测控制策略用于模块化多电平换流器(MMC)时存在运算量庞大的问题,在分析MMC离散数学模型的基础上,通过优化控制目标实现方式、简化滚动优化过程,提出一种结合排序均压思想的快速电压模型预测控制策略。该控制策略针对三相MMC系统,基于电压矢量预测模型进行设计,可在保留传统模型预测控制算法优点的同时令运算量得到大幅度减小,使其应用不受MMC电平数量限制。通过在MATLAB/Simulink软件中搭建双端21电平的基于MMC的柔性高压直流输电(MMC-HVDC)系统模型进行了仿真验证,证明了所提控制策略的正确性和有效性。
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| 关 键 词： | 柔性高压直流输电 模块化多电平换流器 模型预测控制 电压平衡 计算量优化 |
| 收稿时间： | 4/5/2016 12:00:00 AM |
| 修稿时间： | 2016/9/23 0:00:00 |
Fast Voltage Model Predictive Control Strategy for Modular Multilevel Converters |
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| GONG Zheng,WU Xiaojie and DAI Peng.Fast Voltage Model Predictive Control Strategy for Modular Multilevel Converters[J].Automation of Electric Power Systems,2017,41(1):122-127. |
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| Authors: | GONG Zheng WU Xiaojie and DAI Peng |
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| Affiliation: | School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China,School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China and School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China |
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| Abstract: | Conventional model predictive control(MPC)strategies for the modular multilevel converter(MMC)are not ideal for actual applications because of the tremendous calculation burden. To solve this problem, a fast voltage MPC(FVMPC)strategy is proposed based on a discrete mathematical voltage vector model of the MMC derived in this paper. By optimizing the implementation of the control targets and simplifying the rolling optimization, the proposed algorithm makes it simpler to expand to higher voltage levels for the three-phase MMC, with the burden of calculation significantly reduced and the advantage of the conventional MPC algorithm retained. The feasibility and effectiveness of the proposed strategy are verified by simulation results of a 21-level back-to-back MMC based high voltage direct current system using the simulation software MATLAB/Simulink. |
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| Keywords: | high voltage direct current(HVDC)transmission modular multilevel converter(MMC) model predictive control(MPC) voltage balancing control calculating optimization |
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