| 基于移相载波的模块化多电平换流器控制方法研究 |
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| 引用本文： | 谭玉茹,苏建徽.基于移相载波的模块化多电平换流器控制方法研究[J].高压电器,2012,48(8):56-60,64. |
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| 作者姓名： | 谭玉茹 苏建徽 |
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| 作者单位： | 1. 安徽省电力公司培训中心,合肥,230009
2. 合肥工业大学教育部光伏系统工程研究中心,合肥,230009 |
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| 摘 要： | 模块化多电平换流器(MMC)是一种适用于轻型直流输电系统(VSC-HVDC)的新型换流器,笔者在分析其原理的基础上研究了MMC的运行特性,并搭建了数学模型。文中所提出的MMC控制方法采用了移相载波调制策略(CPS-SPWM)的思想,针对MMC的电容电压均衡问题,通过算法重新分配子模块触发脉冲序列,最后仿真验证了该方法的正确性和可行性。
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| 关 键 词： | 模块化多电平换流器 高压直流输电 电容电压均衡 移相载波调制策略 |
CPS-SPWM Based Control Strategy for Modular Multilevel Converter |
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| TAN Yu-ru
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SU Jian-hui.CPS-SPWM Based Control Strategy for Modular Multilevel Converter[J].High Voltage Apparatus,2012,48(8):56-60,64. |
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| Authors: | TAN Yu-ru SU Jian-hui |
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| Affiliation: | 1.Anhui Provincial Electric Power Company Training Center,Hefei 230009,China;2.Research Center for Photovoltaic System Engineering,Ministry of Education,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Modular multilevel converter(MMC) is a new type of multilevel converter suitable for VSC-HVDC.Based on the analysis of its principle,MMC’s operating characteristics is studied in this paper,and a mathematical model is set up.Subsequently,a control strategy for MMC is proposed by making use of the strategy of carried phase shifted sinusoidal pulse width modulation(CPS-SPWM).In order to solve the capacitancevoltage equilibrium problem,the trigger pulse sequence of each sub-module is redistributed through the algorithm.Simulation demonstrates the correctness and effectiveness of the proposed strategy. |
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| Keywords: | modular multilevel converter high voltage direct current transmission capacitance-voltage equilibrium carried phase shifted sinusoidal pulse width modulation(CPS-SPWM) |
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