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Conservative Power Theory for Harmonic Voltage Responsibility Assignment
(2022-03-01)
Discussions on the different methods for sharing responsibilities regarding harmonic distortions in power grids have received wide attention in the area of power quality. This paper proposes a methodology based on Conservative ...
Harmonic propagation analysis in electric energy distribution systems
(2011-12-01)
An important alteration of the equivalent loads profile has been observed in the electrical energy distribution systems, for the last years. Such fact is due to the significant increment of the electronic processors of ...
Effects on Light Efficiency in Discharge and Solid-State Lighting Operation, Supplied by No-Sinusoidal Voltage
(Ieee-inst Electrical Electronics Engineers Inc, 2016-05-01)
The widespread use of discharge lamps and solid-state lighting is justified by its high-energy efficiency. However, the massive use causes degradation of power quality provided. In this context, the objective was the ...
Power standard based on a high precision power-factor meter
(IEEE, 1998)
A high-precision power-factor meter, based on zero crossing detectors, is proposed. The influence of the distortion in the input signals is analyzed and low pass filters proposed to prevent this error source. This system ...
Reduction of total harmonic distortion in power inverters
(Planta Piloto de Ingeniería Química, 2005-12)
The output voltage of PWM power inverters shows harmonic distortion due to several causes; the main ones are the modulation algorithm, nonlinearities in the output filter, dead times, voltage drops across the switches and ...
Impact of supply voltage distortion on the current harmonic emission of non-linear loads
(Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas., 2015-07-01)
Electronic devices have a non-linear characteristic and emit harmonics into the low voltage grid. Different harmonic studies analyze their impact on the grids based on different types of harmonic models. The most used model ...
Current-Based Coordination of Distributed Energy Resources in a Grid-Connected Low-Voltage Microgrid: An Experimental Validation of Adverse Operational Scenarios
(Mdpi, 2022-09-01)
Low-voltage grid-connected microgrids rely on the exploitation of inverter-interfaced distributed energy resources (DERs) in order to feed loads and to achieve bidirectional power flow controllability at their point of ...
Novel high-power-factor isolated electronic ballast for multiple tubular fluorescent lamps
(2001-01-01)
This paper presents a novel isolated electronic ballast for multiple fluorescent lamps, featuring high power-factor, and high efficiency. Two stages compose this new electronic ballast, namely, a new voltage step-down ...
Novel high-power-factor isolated electronic ballast for multiple tubular fluorescent lamps
(2001-01-01)
This paper presents a novel isolated electronic ballast for multiple fluorescent lamps, featuring high power-factor, and high efficiency. Two stages compose this new electronic ballast, namely, a new voltage step-down ...
Harmonic Analysis of Static var Compensator Operating Under Distorted Voltages
(Ieee, 2016-01-01)
The static var compensators (SVC) are still in use in both transmission and distribution grids, due to their reduced costs and high reliability. Especially in distribution grids, on which the voltage harmonic distortion ...