The Influence of the Output Current Deforming Regime on the Input Current Harmonics for a Three-Phase Rectifier Bridge
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2017, Vol 41, Issue 41
Abstract
The present paper was created based on the desire of the author to realize a systemic approach of static converters in general and especially of rectifiers. Looked as system from energetic point of view, a rectifier could be represented “as a black box” without internal energetic sources. It is connected to external environment with an electric DC load and a power supply (mono-phase or three-phase). On the other side the electric current represents an ordered movement of electric charge carriers. In order to supply a certain current to the DC load, the electrons must be “transferred” by the static converter from power supply. Thus, a certain wave form of the current at the output can be obtained only based on some wave forms of the currents from the supply phases. The present paper answers to two questions: (1): does the modification of the spectrum of the load current produces the modification of the spectrum of the currents from the supply phases; (2):if yes, how it modifies the spectrum of the current from the supply phase, only in the magnitude of the basic harmonics, or it appears new harmonics? The paper proves the fact that the spectrum of the currents from the supply phases of the three-phased bridge rectifier depends on the harmonic spectrum of the output current. This dependence is materialized only on the change of the components of basic harmonic spectrum, without some visible new harmonics.
Authors and Affiliations
Mitică Iustinian NEACĂ
Keywords
Related Articles
- EP ID EP264087
- DOI -
- Views 184
- Downloads 0
On the Implementation of FBD-Theory Concepts in the Control of Active DC-Traction Substations
This paper is focused on the transformation of a classical DC-traction substation with twelve-pulse uncontrolled rectifier into an active traction substation by adding a dedicated system for active filtering and regenera...
Using a Shape Memory Alloy Spring Actuator to Increase the Performance of Solar Tracking System
The exclusive properties (e.g. one way and two way shape memory effect, superelasticity, etc.) exhibited by shape memory alloys (SMAs) offer the possibility of producing smart sun tracking mechanisms for photovoltaic...
Electromagnetic Shielding System for Information and Communication Equipments
Today, most of the human activities are computer-controlled with respect to equipments and platforms functionality, quality of the process and people and goods safety. Unlike the specialized platforms, where this feature...
ESTIMATION OF NEW TRAFFIC SIGNALLING TECHNOLOGIES IMPACT ON ENERGY CONSUMPTION
This paper provides results and conclusions of a study regarding the impact of new traffic signaling technologies on energy consumption. The methodology for energy consumption calculation on the products lifecycle is als...
A MODIFIED PETRI NET FRAMEWORK FOR HYBRID SYSTEM MODELING
In order to achieve the framework for analysis of hybrid dynamic systems, different approaches of modeling are used and at present is already an abundance of such paradigms, including Petri Nets. Often, the continuous dy...