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Method for small-signal stability assessment of power systems using source side and load side perturbations
Method for small-signal stability assessment of power systems using source side and load side perturbations
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机译:使用源侧和负载侧扰动的电力系统小信号稳定性评估方法
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摘要
A novel method for real-time small-signal stability analysis for power electronic-based components in a power system. The method may be used to monitor a power system in real-time by perturbing the source side of an electronic-based component of the power system by injecting a current of about 0.5 to 1 percent of a nominal current of the power system at the source side and perturbing the load side of the power electronic-based component by injecting a voltage of about 0.5 to about 1 percent of a nominal voltage of the power system at the load side and varying the voltage at the load side. Time-domain results of the perturbations may be transferred to frequency-domain results and the stability of the power system may be monitored by obtaining a Nyquist contour and employing Generalized Nyquist Criterion or unit circle criterion.
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