Results 1 to 10 of about 199,008 (263)
On the Use of the p-q Theory for Harmonic Current Cancellation with Shunt Active Filters
Discussion and mathematical proof on necessary and sufficient conditions for the application of the {p-q} theory for compensating the harmonic currents consumed by non-linear load using a shunt active filter are presented.
Federico Martin Serra +3 more
doaj +4 more sources
Compensation of active filter using p-q theory in photovoltaic systems
This work proposes an active shunt filter design for grid-connected solar systems, utilizing the p-q instantaneous power theory technique to minimize grid harmonics and reduce reactive power. As a result, the total harmonic distortion (THD) is decreased,
Farzane Soleimani Rudi +1 more
doaj +2 more sources
Study of three-phase active power filter operation using non-sinusoidal voltage
The active power filter designed to compensate inactive power components. Aim: The aim of the study is to assess the quality of the three-phase active power filter in the distortion of the mains voltage supply, which is caused by the influence of non ...
Руслан Володимирович Власенко +1 more
doaj +7 more sources
A Review of Control Technique Applied in Shunt Active Power Filter (SAPF) [PDF]
In recent years, electronic transformers and electronic devices (nonlinear loads) have increased. These loads are the source of harmonics (non-sinusoidal and distorted waves) and the interactive force that affects the performance of the power system ...
Ayad Hadi, Ekhlas Thjeel, Ali Nahar
doaj +1 more source
How to overcome the limitations of p-q Theory: Geometric Algebra Power Theory to the rescue [PDF]
This paper investigates the recent advances in Geometric Algebra-based power theory (GAPoT) and how this tool provides new insights to solve the flaws of one of the most widespread theory in the time domain, the Instantaneous Reactive Power theory (IRP) and its further enhancements. GAPoT can be applied to single-phase and multi-phase systems to obtain
Francisco G. Montoya +3 more
openaire +2 more sources
Rational and quasi-permutation representations of holomorphs of cyclic $p$-groups [PDF]
For a finite group $G$, three of the positive integers governing its representation theory over $\mathbb{C}$ and over $\mathbb{Q}$ are $p(G),q(G),c(G)$.
Soham Pradhan, B. Sury
doaj +1 more source
Quantum theories of (p, q)-forms [PDF]
We describe quantum theories for massless (p,q)-forms living on Kaehler spaces. In particular we consider four different types of quantum theories: two types involve gauge symmetries and two types are simpler theories without gauge invariances. The latter can be seen as building blocks of the former.
BASTIANELLI, FIORENZO +2 more
openaire +2 more sources
Harmonics Analysis of Input Current of 3-Phase PWM Rectifier
Rectifier is a non-linier load that causes harmonic distortion in the power system. Pulse-width modulation (PWM) method is an effective method in pressing the magnitude of harmonics in a rectifier application, it provides an almost sinusoidal input ...
Alfin Prima Adjie, Muhammad Imran Hamid
doaj +1 more source
p-q Theory power components calculations [PDF]
The "generalized theory of the instantaneous reactive power in three-phase circuits", proposed by Akagi et al., and also known as the p-q theory, is an interesting tool to apply to the control of active power filters, or even to analyze three-phase power system in order to detect problems related to harmonics, reactive power and unbalance.
Afonso, João L. +2 more
openaire +2 more sources
THE DEFINABLE (P, Q)-THEOREM FOR DISTAL THEORIES [PDF]
AbstractAnswering a special case of a question of Chernikov and Simon, we show that any non-dividing formula over a model M in a distal NIP theory is a member of a consistent definable family, definable over M.
Boxall, Gareth, Kestner, Charlotte
openaire +3 more sources

