A comparison of high-power converter topologies for the implementation of FACTS controllers
A comparison of high-power converter topologies for the implementation of FACTS controllers
复制标题
DOI：
10.1109/tie.2002.803217
复制
发表时间：
2002-11
期刊：
影响因子：
--
通讯作者：
D. Soto;T. Green
中科院分区：
文献类型：
--
作者：
D. Soto;T. Green
比较了实现柔性交流输电系统(FACTS)控制器的四种功率变换拓扑结构：多点钳位(MPC)、链式和嵌套单元三种多电平拓扑结构以及成熟的多脉冲拓扑结构。为了满足实现超大功率逆变器的需要，开关频率被限制在线路频率。这项研究涉及设备数量、DC滤波器额定值、电压控制限制、通过DC链路的有功功率传输以及DC链路电压的平衡。重点放在电容器尺寸上，因为它对FACTS控制器的成本和尺寸有影响。提出了一种直流电容滤波器尺寸的确定方法。结果表明，链式变流器对于静止补偿器或静止同步串联补偿器的实现具有很大的吸引力。MPC变流器适合于实现统一潮流控制器或线路间潮流控制器，但需要一种特殊的布置来克服电压控制的局限性。
This paper compares four power converter topologies for the implementation of flexible AC transmission system (FACTS) controllers: three multilevel topologies (multipoint clamped (MPC), chain, and nested cell) and the well-established multipulse topology. In keeping with the need to implement very-high-power inverters, switching frequency is restricted to line frequency. The study addresses device count, DC filter ratings, restrictions on voltage control, active power transfer through the DC link, and balancing of DC-link voltages. Emphasis is placed on capacitor sizing because of its impact on the cost and size of the FACTS controller. A method for the dimensioning the DC capacitor filter is presented. It is found that the chain converter is attractive for the implementation of a static compensator or a static synchronous series compensator. The MPC converter is attractive for the implementation of a unified power flow controller or an interline power flow controller, but a special arrangement is required to overcome the limitations on voltage control.