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In this paper a new Dynamic Security Assessment (DSA) based Under Frequency Load Shedding (UFLS) scheme that is adaptive to system inertia and disturbance size is proposed. The proposed Adaptive UFLS scheme achieves a more precise estimate of the minimum shed for a range of system conditions. This reduces the cost of the UFLS as well as alleviating the risk of over shedding that would expose an already...
This paper presents a comparison of the performance of an online inertia estimation method for three different C37.118 compliant PMUs in a laboratory. Inertia is a critical part of ensuring stable system frequency and improving operator awareness of inertia will help preserve high quality frequency control in power systems with high levels of wind generation and converter interfaced generation. This...
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