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首页> 外文期刊>IEEE Transactions on Power Systems >Application of thyristor-controlled series compensators to enhance oscillatory stability and transmission capability of a longitudinal power system
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Application of thyristor-controlled series compensators to enhance oscillatory stability and transmission capability of a longitudinal power system

机译：晶闸管控制的串联补偿器的应用，以增强纵向电力系统的振荡稳定性和传输能力

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Power transfer capability between the Northern area and the Central area of the Taiwan power system is severely limited by the fact that the power flows over the two parallel corridors connecting the two areas are rather disproportionate to their thermal limits due to different conductor sizes. Placing series capacitors on the corridor which is lightly loaded seems to be a reasonable means to enhance the overall transfer capability of the parallel corridors without overloading the other corridor which is already close to its thermal limit. A joint research project is conducted by the researchers at National Taiwan University and the engineers at Taiwan Power Company (TPC) in order to examine the feasibility of installing a combination of conventional series capacitors and thyristor-controlled series compensators (TCSCs) at TPC's 345 kV transmission system. Extensive power flow studies are conducted to investigate how the power flows over the two corridors are affected by different locations and capacities of the series capacitors. In addition to steady-state power transfer levels over the two corridors, the eigenvalues for the inter-area oscillation modes are also computed for the system with various compensation plans. A proper compensation plan is determined based on requirements on both steady-state power transfer level and inter-area mode damping. To improve system dynamic performance, a supplementary TCSC damping controller is designed. It is concluded from the results of this work that good damping characteristic can be achieved by coordinated application of the designed TCSC damping controller and the power system stabilizers.
机译：台湾电力系统北部和中部地区之间的电力传输能力受到以下事实的严重限制：由于连接导体的尺寸不同，流过连接这两个地区的两条平行走廊的电力流与其热量极限不成比例。在低负载的走廊上放置串联电容器似乎是一种合理的方法，可以提高平行走廊的整体传输能力，而不会使已经接近其热极限的另一个走廊过载。国立台湾大学的研究人员和台湾电力公司（TPC）的工程师进行了一项联合研究项目，以研究在TPC的345 kV上安装传统串联电容器和晶闸管控制串联补偿器（TCSC）组合的可行性传输系统。进行了广泛的功率流研究，以研究在两个通道上流过的功率如何受到串联电容器的不同位置和容量的影响。除了两个通道上的稳态功率传输水平外，还针对具有各种补偿计划的系统计算了区域间振荡模式的特征值。根据对稳态功率传输水平和区域间模式阻尼的要求，确定适当的补偿计划。为了提高系统动态性能，设计了辅助TCSC阻尼控制器。从这项工作的结果可以得出结论，通过协调设计的TCSC阻尼控制器和电力系统稳定器的应用，可以实现良好的阻尼特性。

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