| 引用本文: | 易灵芝,彭寒梅,王根平,邓文浪,赵晓昀.基于双级矩阵变频器的柔性分频输电系统中的变频换流技术[J].电力自动化设备,2010,(2): |
| .Varying frequency commutation technology in flexible fractional frequency transmission system based on TSMC[J].Electric Power Automation Equipment,2010,(2): |
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| 摘要: |
| 采用双级矩阵变频器作为倍频设备,改进柔性分频输电系统的变频换流站,将水轮发电机发出分频电力,经升压变压器和输电线路,送入双级矩阵变换器进行交-直-交变换,转变为工频电力,并入电网,或者给交流负载供电。通过分析交-直-交双级矩阵变频器的主电路拓扑结构、双空间矢量调制策略和零电流换流方法等变频换流技术,提出柔性分频输电系统新型变频换流站实现方案,充分利用双级矩阵变换器结构紧凑、能量双向传递、输出频率可控、输入功率因数可调的优点。在Matlab/Simulink环境下的模型仿真结果表明,该方案能明显提高输电系统的传输效率,充分抑制谐波分量以及有效降低系统无功功率,并通过修正逆变级调制系数,可保证在分频电力输入不对称时网侧输出平衡。 |
| 关键词: 分频输电系统 双级矩阵变频器 仿真 双空间矢量调制 零电流换流 |
| DOI： |
| 分类号:TM46 |
| 基金项目:教育部工程硕士教改课题项目(2009-ZX-052);;湖南省自然科学基金项目(08JJ6029)~~ |
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| Varying frequency commutation technology in flexible fractional frequency transmission system based on TSMC |
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YI Lingzhi1 PENG Hanmei1 WANG Genping2 DENG Wenlang1 ZHAO Xiaoyun1
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| Abstract: |
| The varying frequency commutation station,which takes TSMC(Two Stage Matrix Converter) as AC / DC / AC transformation equipment to improve the FFFTS(Flexible Fractional Frequency Transmission System),supplies the fractional frequency power from hydraulic generator to TSMC via the step-up transformer and transmission line. The later then converts the fractional frequency power into the industry frequency power for power network or AC consumers. A total solution is provided after the topology of its main circ... |
| Key words: fractional frequency transmission system two stage matrix converter simulation dual space vector modulation zero-current commutation technology |
