Mitigation of voltage dips and voltage swells by STATCOM/BESS

Monitoring Power Quality in Microgrids Based on Disturbances Propagation Algorithms

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.8-9.127 ◽

2013 ◽

Vol 8-9 ◽

pp. 127-138 ◽

Cited By ~ 1

Author(s):

Anca Miron ◽

Mircea D. Chindris ◽

Andreas Sumper

Keyword(s):

Power Quality ◽

Virtual Instrument ◽

Quality Indices ◽

Component Theory ◽

Voltage Dips ◽

Voltage Swells

The paper shows how the surveying of power quality in microgrids working under unbalanced harmonic distorted operating states with possible voltage dips and voltage swells existence can be accomplished implying a small amount of time and measurement activities. The surveying methodology uses the disturbances propagation phenomenon to determine the power quality indices in all of interest nodes of the microgrid utilizing the voltages and currents characteristics in one or several strategic nodes. The disturbances propagation is based on the sequence component theory applied for all detected harmonics and for the microgrids components. The proposed surveying methodology was implemented in a virtual instrument capable to acquire the voltages and currents waveforms, to analyze them in order to identify the disturbances characteristics, to calculate the disturbances propagation and display the power quality indices in all of interest nodes of the microgrid. The virtual instrument was tested using several microgrid topologies and scenarios.

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Self-tuning Kalman filter and machine learning algorithms for voltage dips upstream or downstream origin detection

Renewable Energy and Power Quality Journal ◽

10.24084/repqj14.346 ◽

2016 ◽

pp. 409-413

Author(s):

H. Shadmehr ◽

R. Chiumeo ◽

L. Tenti

Keyword(s):

Machine Learning ◽

Kalman Filter ◽

Learning Algorithms ◽

Machine Learning Algorithms ◽

Voltage Dips ◽

Self Tuning

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The effects of new 2030 scenario: reduction of short-circuit power and widening of voltage dips

2018 AEIT International Annual Conference ◽

10.23919/aeit.2018.8577274 ◽

2018 ◽

Cited By ~ 3

Author(s):

L. Michi ◽

E.M. Carlini ◽

L. Caciolli ◽

D. Polinelli ◽

P. Capurso ◽

...

Keyword(s):

Short Circuit ◽

Scenario Reduction ◽

Voltage Dips ◽

Circuit Power

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New Stationary Frame Control Scheme for Three Phase PWM Rectifiers under Unbalanced Voltage Dips Conditions

2008 IEEE Industry Applications Society Annual Meeting ◽

10.1109/08ias.2008.320 ◽

2008 ◽

Cited By ~ 10

Author(s):

D. Roiu ◽

R. Bojoi ◽

L. R. Limongi ◽

A. Tenconi

Keyword(s):

Three Phase ◽

Control Scheme ◽

Voltage Dips ◽

Unbalanced Voltage ◽

Stationary Frame ◽

Pwm Rectifiers

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Research on Flux Damping Control Strategy of DFIG during Grid Voltage Dips

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.713-715.756 ◽

2015 ◽

Vol 713-715 ◽

pp. 756-759

Author(s):

Xu Guang Zhang ◽

Zhen Xie

Keyword(s):

Mathematical Model ◽

Control Strategy ◽

Grid Voltage ◽

Damping Control ◽

Simulink Simulation ◽

Voltage Dips ◽

Simulation Results ◽

Stator Flux ◽

Natural Component ◽

Simplified Mathematical Model

A flux damping control strategy was proposed to accelerate the decay of stator flux and restrain stator, rotor current and torque oscillation caused by grid voltage dips. Firstly, this paper analyzes the simplified mathematical model of DFIG during symmetrical voltage dips. Then, the mechanism of flux damping control strategy to restrain stator, rotor current oscillation and increase flux damping was analyzed. The flux damping control strategy can increase the damping of stator side, which accelerates the decay of the stator flux natural component and improve the dynamic LVRT performance of DFIG. The correctness and effectiveness of this method is verified by MATLAB/Simulink simulation results.

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