On the Use of the p-q Theory for Harmonic Current Cancellation with Shunt Active Filters [PDF]
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 +7 more sources
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.
João L. Afonso +2 more
openalex +4 more sources
Modelling of 3-Phase p-q Theory-Based Dynamic Load for Real-Time Simulation [PDF]
This article proposes a new method of modelling dynamic loads based on instantaneous p-q theory, to be employed in large powers system network simulations in a digital real-time environment.
Karthik Rajashekaraiah +3 more
doaj +2 more sources
On R4 threshold corrections in type IIB string theory and (p, q)-string instantons [PDF]
We obtain the exact non-perturbative thresholds of $R^4$ terms in IIB string theory compactified to eight and seven dimensions. These thresholds are given by the perturbative tree-level and one-loop results together with the contribution of the D-instantons and of the (p,q)-string instantons. The invariance under U-duality is made manifest by rewriting
Elias Kiritsis, Boris Pioline
openalex +5 more sources
Phase Coordinate System and p-q Theory Based Methods in Active Filtering Implementation
This paper is oriented towards implementation of the main theories of powers in the compensating current generation stage of a three-phase three-wire shunt active power system.
POPESCU, M., BITOLEANU, A., SURU, V.
doaj +2 more sources
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
openalex +4 more sources
P-Q Theory-based Dynamic Load Modelling in Short-Circuit Analysis
Short-circuit analysis is essential for determining the fault current rating of different protection devices installed in a power system network. Usually, the inaccuracy in short-circuit current calculation is due to the fact of neglecting the effect of load during short circuit analysis.
Rajashekaraiah, Karthik +4 more
openalex +4 more sources
Chern–Simons theory on
17 pages, 6 figures; references ...
Andrea Brini +3 more
openalex +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
A modified instantaneous reactive power algorithm for shunt compensation [PDF]
Instantaneous Reactive Power (IRP p-q) Theory is well-thought-out as a benchmark for reference current generation in shunt compensation. The basic approach of this theory works optimally under balanced and sinusoidal source voltages.
Namrata Mishra +7 more
doaj +2 more sources

