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The ability of modern wind turbine generators (WTGs) to rapidly and independently control active and reactive power outputs makes them attractive for the purpose of oscillation damping in power systems through P and Q modulation auxiliary loops. However, the problem of coordination and interaction of P and Q control loops emerges. The paper proposes a methodology for coordinated design of active and...
Synchronous power systems often experience two types of oscillatory responses: natural and forced. Natural oscillations are a transient response characterized by the electromechanical oscillation modes. If one or more of these modes are undamped, a sustained oscillation occurs with the system in a near unstable condition. Alternatively, forced oscillations are typically caused by some rouge input...
There has been limited focus on evaluation of Sub-synchronous Resonance (SSR) risk between reciprocating engine based generation and series compensated transmission networks. This paper aims to provide an analytical approach for investigating SSR issues associated with reciprocating engine based generators and series compensated transmission lines. Eigen value analysis is performed to determine the...
PSS4B stabilizer is a multi-band stabilizer received attention in recent years. The effectiveness of such a stabilizer depends on a number of factors, among them how stabilizer parameters are tuned playing a key role. In this case study, two common parameter tuning methods, the ideal phase curve method and the residue method, are used to determine the parameters of a PSS4B stabilizer and a PSS1A stabilizer...
In our recent work [1] we constructed a reduced-order five-area model of the Western Electricity Coordinating Council (WECC) power system using mathematically derived parameters from real PMU data. These parameters include inter and intra-area impedances, inertias, and damping values for aggregate machines representing five geographic areas. In this paper we use this reduced-order model as a tool...
The internal voltage angle of generators is an important parameter that indicates the stability, both transient and steady-state, of a generator. This paper proposes a method of measuring and then synchronizing the internal angle with the use of an optical encoder on the shaft using a microprocessor. With a synchronized angle measurement, accurate stability studies and wide-area controls could be...
A study has been conducted regarding effect of local Power System Stabilizers and wide area damping controller(WADC) on various inter-area modes present in an inter-connected power system. The local PSS as well as WADC have strategically placed on the paths of dominant inter-area modes, to have maximum beneficial impact on system modal damping.
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