The single-phase traction load has essentially an unbalance characteristic at the Point of Common Coupling (PCC), which injects harmonic into the utility grid. In this paper, the effect of harmonic distortion and unbalance loading are investigated simultaneously for electrical railway systems. Special traction transformers (i.e. single-phase, V/V, Wye-Delta, Scott, and Le Blanc) are used betwee...

Motivated by Gauss’s first proof of the Fundamental Theorem of Algebra, we study the topology of harmonic algebraic curves. By the maximum principle, a harmonic curve has no bounded components; its topology is determined by the combinatorial data of a noncrossing matching. Similarly, every complex polynomial gives rise to a related combinatorial object that we call a basketball, consisting of a...

In AC electrified railways, there is a significant exchange of power at fundamental and harmonics in quite dynamic conditions. Harmonic patterns rolling stock railway networks are analysed terms active non-active flow, relating it to the characteristic network operating conditions, synthesised current intensity speed. Herein, shown that correlation clustering can separate distortion internal ex...

In this paper we introduce a novel flow representation for finite games in strategic form. This representation allows us to develop a canonical direct sum decomposition of an arbitrary game into three components, which we refer to as the potential, harmonic and nonstrategic components. We analyze natural classes of games that are induced by this decomposition, and in particular, focus on games ...

We generalize a Hardy-Littlewood inequality and a Privalov inequality for conjugate harmonic functions in the plane to components of Clifford-valued monogenic functions.

The properties of the time domain parameters of vibration signals have been extensively studied for the fault diagnosis of rolling element bearings (REBs). Parameters like kurtosis and Envelope Harmonic-to-Noise Ratio are the most widely applied in this field and some important progress has been made. However, since only one-sided information is contained in these parameters, problems still exi...

-This paper presents a software filter for fast estimation of harmonic and frequency components of a power system voltage or current signal corrupted by noise with low signal to noise ratio (SNR). This new algorithm is based on an objective function often used in independent component analysis for robust tracking under impulse noise conditions. Instead of choosing the step size η and the parame...

-This paper presents an adaptive filter for fast estimation of harmonic and frequency components of a power system voltage or current signal corrupted by noise with low signal to noise ratio (SNR). This new algorithm is based on an objective function often used in independent component analysis for robust tracking under impulse noise conditions. Instead of choosing the step size η and the param...