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Determining maximum loading margins is an important issue in power system operation, as system operators must take proper preventive actions to avoid stability problem. This paper presents a study of parallel FACTS devices and series FACTS devices on steady-state voltage and power stability. Their steady state modeling and effects on power system performance have been studied. It also studies static...
In this paper, a new algorithm is proposed to determine the magnitudes of dc voltage sources used in asymmetric cascaded multilevel converters. Using this algorithm, it is possible to generate the maximum number of output voltage levels and maximum output voltage amplitude using the minimum number of dc voltage sources. The magnitudes of dc voltage sources are determined in a way considering which...
One of the major causes of voltage instability is the reactive power limit of the system. Improving the systempsilas reactive power handling capacity via flexible AC transmission system (FACTS) devices is a remedy for prevention of voltage instability and hence voltage collapse. In this paper, the effects of four FACTS controllers, SVC, STATCOM, TCSC, and UPFC, on voltage stability will be studied...
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