Input-Admittance Calculation and Shaping for Controlled Voltage-Source Converters
Input-Admittance Calculation and Shaping for Controlled Voltage-Source Converters
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DOI：
10.1109/tie.2007.904022
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发表时间：
2007-11
影响因子：
7.7
通讯作者：
L. Harnefors;M. Bongiorno;S. Lundberg
中科院分区：
文献类型：
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作者：
L. Harnefors;M. Bongiorno;S. Lundberg
受控电力电子转换器在与电力系统中的其他动态子系统交互时可能会导致局部不稳定。然而，如果转换器差分输入导纳在该频率下具有正电导（实部），则无法建立该频率下的振荡，因为随后会耗散功率。在本文中，推导了电压源转换器的输入导纳表达式。可以看出如何通过调整控制器参数来调整导纳，以便在所需频率区域中获得正实部。
A controlled power electronic converter can cause local instabilities when interacting with other dynamic subsystems in a power system. Oscillations at a certain frequency cannot, however, build up if the converter differential input admittance has a positive conductance (real part) at that frequency, since power is then dissipated. In this paper, input-admittance expressions for a voltage-source converter are derived. It is seen how the admittance can be shaped in order to get a positive real part in the desired frequency regions by adjusting the controller parameters.