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How to suppress low frequency oscillations effectively in inter-connected power systems has been a challenging problem for many years. The problem may be solved by accurate control of absolute rotor angles. The structure of a rotor angle controller is shown in this paper. The input of the controller is the absolute rotor angle measured by local phasor measurement unit (PMU). The controller ensures...
A new solution to eliminate inter-area low frequency oscillation through accurate control of absolute generator rotor angles is put forward recently. The new solution can achieve no deviating regulation of frequency and absolute rotor angles. As a result, low frequency oscillations can be eliminated. This paper presents the state matrix for a single-machine infinite bus system and a two machine system...
Low frequency oscillations between remote areas are big challenges to electric engineer when large networks are connected together. Although many efforts have been made to damp the oscillations by means of control build upon WAMS, many problems remain to be solved. This paper presented a new solution to the problem through accurate control of generator power angles. The new method adds integration...
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