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Along with a number of benefits, large penetration of distributed generation (DG) units in the distribution system imposes some serious challenges for power engineers. Slow voltage recovery under post-fault condition turns up as one of the most critical problems in small DG integration. Majority of the small DG units trip due to lack of fault ride-through (FRT) capability, and hence, challenges the...
Recently, establishing reliable index to assess voltage stability condition of a stressed multi-node power transmission and distribution system is getting lot of attention. With the integration of renewable energy in power system the subject of voltage stability in distribution system is getting more interest. In this study, reactive power margin has been used as a stability index which appears as...
This paper discusses the effect of different static load models on Hopf bifurcations and damping ratios of critical eigenvalues of power systems. The three most commonly used load models, i.e. constant impedance, constant current and constant power, are investigated under various system operating conditions and with different power system controllers. Some interesting observations are made regarding...
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