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Related papers: A Generalized Theory of Power

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The paper revisits the concepts of instantaneous active and reactive powers and provides a novel definition for basic circuit elements based on quantities utilized in classical mechanics, such as absolute and relative velocity, momentum…

Systems and Control · Electrical Eng. & Systems 2024-05-29 Federico Milano , Georgios Tzounas , Ioannis Dassios

In this paper, a generalization of the concept of electrical power for periodic current and voltage waveforms based on a new generalized complex geometric algebra (GCGA) is proposed. This powerful tool permits, in n-sinusoidal/nonlinear…

Systems and Control · Electrical Eng. & Systems 2024-02-21 M. Castilla , Juan Carlos Bravo , M. Ordoñez , Juan Carlos Montaño

Unbalanced three-phase systems still lack a compact phasor-domain representation of power that makes phase asymmetry explicit while remaining consistent with established apparent-power definitions. This paper addresses that point through a…

Systems and Control · Electrical Eng. & Systems 2026-04-29 Juan Carlos Bravo-Rodríguez , Juan Carlos del-Pino-López , Francisco Casado-Machado

Traditional power theories and one of their most important concepts --apparent power-- are still a source of debate and, as shown in the literature, they present several flaws that misinterpret the power-transfer phenomena under distorted…

Systems and Control · Electrical Eng. & Systems 2020-05-05 Francisco Gil Montoya , Alfredo Alcayde , Francisco Arrabal-Campos , Raul Baños , Javier Roldán-Pérez

General physics approach is applied to analysis of power components in electrical systems under sinusoidal and non-sinusoidal conditions. Physical essence of active, reactive and distorting powers are determinate. It is shown that the all…

General Physics · Physics 2009-04-08 Gheorghe Mihai

Electrical networks, and physical systems in general, are known to satisfy a power balance equation which states that the rate of change of the energy in time equals the power at the port of the network minus the power dissipated. However,…

Dynamical Systems · Mathematics 2016-04-29 Dimitri Jeltsema , Gerald Kaiser

The paper introduces the concept of complex frequency. The imaginary part of the complex frequency is the variation with respect of a synchronous reference of the local bus frequency as commonly defined in power system studies. The real…

Systems and Control · Electrical Eng. & Systems 2026-03-24 Federico Milano

In this paper, the power flow in electrical systems is modelled in the time domain by using Geometric Algebra and the Hilbert Transform. The use of this mathematical framework overcomes some of the limitations shown by the existing…

Systems and Control · Electrical Eng. & Systems 2020-05-26 F. G. Montoya , J. Roldán-Pérez , A. Alcayde , F. M. Arrabal-Campos , R. Baños

Perturbation theory with respect to the kinetic energy of the heavy component of a two-component quantum system is introduced. An effective Hamiltonian that is accurate to second order in the inverse heavy mass is derived. It contains a new…

Quantum Physics · Physics 2024-06-21 Ryan Requist

From the perspective of the network theory, the present work illustrates how the parametric intrinsic geometric description exhibits an exact set of pair correction functions and global correlation volume with and without the inclusion of…

Applications · Statistics 2010-11-15 Neeraj Gupta , Bhupendra Nath Tiwari , Stefano Bellucci

A family of formal power series, such that its coefficients satisfy a recursion formula, is characterized in terms of the summability, in the sense of J. P. Ramis, of its elements along certain well chosen directions. We describe a set of…

Complex Variables · Mathematics 2022-04-13 A. Lastra , J. Sanz , J. R. Sendra

The energy spectra of two different quantum systems are paired through supersymmetric algorithms. One of the systems is Hermitian and the other is characterized by a complex-valued potential, both of them with only real eigenvalues in their…

Quantum Physics · Physics 2020-11-04 Kevin Zelaya , Sara Cruz y Cruz , Oscar Rosas-Ortiz

This letter seeks to clarify the different existing definitions of both instantaneous complex phase and frequency as well as their equivalence under standard modeling assumptions considered for transmission systems, i.e. balanced positive…

Systems and Control · Electrical Eng. & Systems 2026-04-23 César García-Veloso , Mario Paolone , Federico Milano

The theory of formal power series and derivation is developed from the point of view of the power matrix. A Loewner equation for formal power series is introduced. We then show that the matrix exponential is surjective onto the group of…

Complex Variables · Mathematics 2009-07-10 Eric Schippers

A representation theorem for non-semibounded Hermitian quadratic forms in terms of a (non-semibounded) self-adjoint operator is proven. The main assumptions are closability of the Hermitian quadratic form, the direct integral structure of…

Functional Analysis · Mathematics 2022-07-11 Alberto Ibort , José G. Llavona , Fernando Lledó , Juan Manuel Pérez-Pardo

The complex Poynting theorem is extended canonically to a time-scale domain $(t, s)$ by replacing the phasors of time-harmonic fields by the analytic signals $X(r, t+is)$ of fields $X(r,t)$ with general time dependence. The imaginary time…

Mathematical Physics · Physics 2016-01-26 Gerald Kaiser

Current studies about the continuous-variable systems in non-Hermitian quantum mechanics heavily revolved around the singularities in the eigenspectrum by mimicking their discrete-variable counterparts. Discussions over the nonunitary…

Quantum Physics · Physics 2026-04-28 Zhu-yao Jin , Jun Jing

This paper presents a novel time-domain perspective of the Currents' Physical Components (CPC) power theory for single-phase systems operating under nonsinusoidal conditions. The proposed CPC decomposition reveals some appealing physical…

Optimization and Control · Mathematics 2014-04-28 Dimitri Jeltsema , Jacob W. van der Woude , Marek T. Hartman

A review is given on the foundations and applications of non-Hermitian classical and quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra, including Jordan normal form, biorthogonality, exceptional…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 Yuto Ashida , Zongping Gong , Masahito Ueda

Using appropriate power series evaluations, we determine all moments of arbitrary positive powers of the arcsine. As consequences we evaluate several doubly infinite classes of power series involving central binomial coefficients and…

Number Theory · Mathematics 2025-12-08 Karl Dilcher , Christophe Vignat
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