Delay-tolerant PSS with discrete-time H∞ observer-based predictor
Delay-tolerant PSS with discrete-time H∞ observer-based predictor
复制标题
具有离散时间 H∞ 基于观测器的预测器的延迟容忍 PSS
DOI：
10.1109/sice.2015.7285414
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Akira Kojima
中科院分区：
文献类型：
--
作者：
Kotaro Hashikura;Akira Kojima
GPS和PMU的技术发展使集中PSS方案的建设成为可能，预计该方案将缓解受抑制的区域间低频振荡。由于GPS和PMU单元中的传输和处理延迟达到100ms的数量级，因此集中式电力系统应该对这些延迟具有鲁棒性。研究了设计一种容延集中式PSS作为基于H∞观测器的预测器的可能性。我们利用一般H-∞控制理论中的加权函数技术来适应不确定的时滞长度。以一个典型的多区域多机系统为基准，对所提出的PSS进行了时延变化评估。
Technological developments of GPS and PMU are enabling construction of the centralized PSS scheme which is expected to mitigate damped low frequency inter-area oscillations. Since transmission and processing delays in GPS and PMU units amount to the order of 100 ms, the centralized power systems should be endowed with robustness to those delays. This paper investigates the possibilities of designing a delay-tolerant centralized PSS as an H∞observer-based predictor. We accommodate uncertain delay length by employing the weighting function technique in the general H∞control theory. A typical multi-area multi-machine system is adopted as the benchmark target, and the proposed PSS is assessed with respect to the delay variation.