Three single-phase voltage source converter based three-phase four wire DSTATCOM

2009 ◽  
Author(s):  
Bhim Singh ◽  
P. Jayaprakash ◽  
D P Kothari
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Phase Voltage ◽  
Three Phase

Predictive Controller for a Three-Phase/Single-Phase Voltage Source Converter Cell

2014 ◽  
Vol 10 (3) ◽  
pp. 1878-1889 ◽  
Author(s):  
Roberto O. Ramirez ◽  
Jose R. Espinoza ◽  
Pedro E. Melin ◽  
Marcelo E. Reyes ◽  
Eduardo E. Espinosa ◽  
...  
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Phase Voltage ◽  
Three Phase ◽  
Predictive Controller

MATHEMATICAL MODELING OF ANALOG CONTROLLED VOLTAGE SOURCE CONVERTERS FOR IMPROVED DYNAMIC RESPONSE

1998 ◽  
Vol 08 (04) ◽  
pp. 483-496 ◽  
Author(s):  
M. N. GITAU ◽  
I. R. SMITH ◽  
J. G. KETTLEBOROUGH
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Voltage Source ◽  
Current Loop ◽  
Voltage Source Converter ◽  
Switching Frequency ◽  
Voltage Source Converters ◽  
Phase Voltage ◽  
Nonlinear Loads ◽  
Three Phase

Increases in the occurrence of nonlinear loads have resulted in the need to reduce or minimize the levels of harmonic currents being injected into the power supply. As a consequence, active current waveshaping and pulse-width modulation have now replaced conventional phase-controlled and diode bridge rectifiers in many applications. In this paper, mathematical models are developed for the power circuits of analog controlled single-phase and three-phase voltage source converters, and then used to analyse the performance of current- and voltage-control loops for the converters. Analytical expressions are derived for the gains and time constants of the current and voltage controllers, and it is shown that the bandwidth of the current-loop is a function of the switching frequency, and that of the voltage-loop is a function of the DC-busbar capacitance and the voltage filter cut-off frequency. To illustrate the application of the models, simulation results are presented from investigations into the control of a 5 kW single-phase voltage-source converter and a 100 kW three-phase boost converter.

scholarly journals Feedforward Harmonic Mitigation Strategy for Single-Phase Voltage Source Converter

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Qing Zhong ◽  
Junjie Feng ◽  
Gang Wang ◽  
Haifeng Li
Keyword(s):  
Single Phase ◽  
Control Strategies ◽  
Mitigation Strategy ◽  
Voltage Source ◽  
Effective Control ◽  
Voltage Source Converter ◽  
Phase Voltage ◽  
Analysis Model ◽  
Harmonic Pollution ◽  
Harmonic Mitigation

With the development of distributed generations (DGs), single-phase voltage source converter (SPVSC) has been widely used, but it brings about the problem of harmonic pollution to power grid. Hence, it is significant to explore the mechanism of harmonic injection from SPVSC and propose effective control strategies to mitigate the harmonic pollution. In this paper, a harmonic analysis model of SPVSC based on dynamic phasor (DP) has been established. With the model, the harmonics interaction between the ac side and the dc side can be analyzed with the consideration of the control strategies, which reveals the generation mechanism of the harmonics in SPVSC. Based on the mechanism, a feedforward harmonic mitigation strategy has been presented. The principle of the strategy is to add low-order harmonic signal to the PWM modulation signals to reduce the harmonic current on the ac side. The harmonic mitigation strategy not only has clear physical meaning and fast calculation, but also is robust for the uncertainty of parameters. Finally, the simulation and experiment results demonstrate the correctness of the model and the effectiveness of the harmonic mitigation strategy.

Sign in / Sign up

Export Citation Format

Share Document