# Sina Y. Caliskan

• EMSOFT
• 2012
Robustness is the property that a system only exhibits small deviations from the nominal behavior upon the occurrence of small disturbances. While the importance of robustness in engineering design is well accepted, it is less clear how to verify and design discrete systems for robustness. We present a theory of <i>input-output robustness</i> for discrete(More)
• IEEE Transactions on Control of Network Systems
• 2014
During the normal operation of a power system, all the voltages and currents are sinusoids with a frequency of 60 Hz in America and parts of Asia or of 50 Hz in the rest of the world. Forcing all the currents and voltages to be sinusoids with the right frequency is one of the most important problems in power systems. This problem is known as the transient(More)
• ArXiv
• 2012
Kron reduction is used to simplify the analysis of multi-machine power systems under certain steady state assumptions that underly the usage of phasors. Using ideas from behavioral system theory, we show how to perform Kron reduction for a class of electrical networks without steady state assumptions. The reduced models can thus be used to analyze the(More)
• CDC
• 2013
With this paper we initiate a compositional analysis of multi-machine power systems consisting of the interconnection of generators, loads, and transmission lines. We provide sufficient conditions for transient stability that do not rely on the overall model of the multi-machine power system which can be very complex. Instead, we provide simple conditions(More)
• CDC
• 2015
The swing equation model is widely used in the literature to study a large class problems, including stability analysis of power systems. We show in this paper, by comparison with a first principles model, that the swing equation model may lead to erroneous conclusions when performing stability analysis of power systems, even under small oscillations.
• IEEE Transactions on Control of Network Systems
• 2017
The only change that needs to be made in the proof of [1, Theor. 2] when replacing (1) with (2) is in [1, (46)], where the equality is to be replaced with an inequality. With this change, [1, Theor. 2] follows. Hence, we make the following assumption. Assumption 1: The inequality (2) holds along every trajectory of the multimachine power system. Theorem 2(More)
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