Decoupled current control of modular multilevel converter for HVDC applications
Decoupled current control of modular multilevel converter for HVDC applications
复制标题
适用于 HVDC 应用的模块化多电平转换器的解耦电流控制
DOI：
10.1109/isie.2012.6237396
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
José R. Rodríguez
中科院分区：
文献类型：
--
作者：
M. Pérez;Ricardo Lizana;José R. Rodríguez
能源市场的不断增长促使能源越来越远离能源消费中心。在这种情况下，高压直流系统已被证明是远距离传输电力的最佳替代方案。在HVDC系统中使用的不同换流器拓扑中，模块化多电平换流器提供最高的模块化、可靠性、可用性和电能质量。由于耦合电流和DC电压平衡，这些转换器通常具有复杂的控制方案。本文着重于电流和平均电压的控制，提出了输出、输入和环流分量的解耦控制，大大简化了控制方案。仿真结果表明，使用MMC与200个细胞每臂所提出的计划的性能。
The continuous growing of energy market prompt for energy sources every time more distant to energy consumption centres. In this scenario, high voltage DC systems have proved to be the best alternative to transmit power over long distances. Among the different converter topologies used in HVDC systems, the modular multilevel converter provides the highest modularity, reliability, availability and power quality. These converters usually have a complex control scheme, due to the coupled currents and the DC voltage balance. This paper is focused on the control of currents and average voltage proposing a decoupled control of output, input and circulating current components which simplifies drastically the control scheme. Simulation results using a MMC with 200 cells per arm show the performance of the proposed scheme.