Mitigation of unbalanced voltage dips using static series compensator

Awad, Hilmy; Svensson, J.; Bollen, M.H.J.

doi:10.1109/iecon.2003.1280670

Cited by 24 publications

(26 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is important to highlight that the dq current components must be filtered to cancel the double frequency oscillations. This filtering has been made by means of a delayed signal cancellation (DSC) method [21]. It should be noted that although a delay is included by the DSC filter, the dynamic response required for this types of applications is not affected.…”

Section: A Overall Control Block Diagrammentioning

confidence: 99%

Online Reference Limitation Method of Shunt-Connected Converters to the Grid to Avoid Exceeding Voltage and Current Limits Under Unbalanced Operation—Part I: Theory

Milicua

Abad

Vidal

2015

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

This paper focuses the analysis around a gridconnected converter that operates under unbalanced voltage and current conditions. Two different scenarios have been selected to validate the proposed algorithms. In the first scenario, the converter operates as a reactive power compensator, exchanging reactive power with the grid, and minimizing the dc bus voltage oscillations. The second scenario is more challenging, since it operates as a load balancer. In this application, the unbalanced current consumption of the load is compensated by the converter, exchanging positive and negative sequence currents with the grid. Another objective in this second scenario is to compensate the reactive power of the unbalanced load. It is important to highlight that in both scenarios, any maximum limit of the converter can be exceeded due to the specific unbalanced voltage and current conditions. Three variables are considered critical for the converter: 1) output ac current limit; 2) output ac voltage limit; and 3) dc bus voltage oscillation limit. Thus, this paper proposes a control method, which limits online the reactive power reference in the first scenario and the exchanged current references in the second scenario in order not to exceed any of the mentioned critical variables. The corresponding experimental results are shown in Part II of this paper so as to validate the limitation algorithm obtained by means of the mathematical analysis carried out in Part I.

show abstract

Section: A Overall Control Block Diagrammentioning

confidence: 99%

Online Reference Limitation Method of Shunt-Connected Converters to the Grid to Avoid Exceeding Voltage and Current Limits Under Unbalanced Operation—Part I: Theory

Milicua

Abad

Vidal

2015

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

show abstract

“…11.1). Vector control scheme is employed to compensate for both voltage magnitude and phase jump [8]. The proposed DVR can also exchange real and reactive power demand of wind generator [9].…”

Section: Introductionmentioning

confidence: 99%

Improving the Reliability of Wind Generators Using Dynamic Voltage Restorer

Sivasankar¹,

Kumar²

2014

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

The increasing wind power integration with power grid has forced the situation to improve the reliability of wind generators for stable operation. One important problem with induction generator based wind farm is its low ride through capability to the grid voltage disturbance. Any disturbance such as voltage dip may cause wind farm outages. Since wind power contribution is in predominant percentage, such outages may lead to stability problem. The proposed strategy is to use dynamic voltage controller (DVR) to compensate the voltage disturbance. The DVR provides the wind generator the ability to remain connected in grid and improve the reliability. Extensive simulation results are included to illustrate the control and operation of DVR.

show abstract

“…Electrical power quality problems comprise of numerous disturbances for instance voltage drop, flash, harmonics deformation, inclination transient, and interruption (Abdellatif Hamouda et al, 2007, Awad H et al, 2004, and Nielsen J. G et al, 2004. Voltage sag presents itself at any specific instantaneous of the time with amplitudes starting from 10%-90% along with a time period.…”

Section: Introductionmentioning

confidence: 99%

An Approach in Power Quality Enhancement Using DVR for Three Phase Induction Motor Drive

2016

Rev. Téc. Ing. Univ. Zulia.

View full text Add to dashboard Cite

Abstract. This paper focuses on the advancement of electric power quality tendencies of an induction motor as well as improving the consequence on account of the prolonged duration voltage discrepancy. The proposed mitigating device is a brand new topology of a DVR. This device is often familiar to minimizing the impact unusually high voltage variations while making use of highly effective custom electric power equipment that is to say the Dynamic Voltage Restorer (DVR). It contains an electric power storage device, filtration systems, voltage source inverter and also injection transformer. There are numerous categories of regulating approaches being employed for mitigation of abnormal voltages. The proposed control approach of this device will be based upon the "abc to dqo" conversion methodology employed. The demonstration outcomes can be found in several circumstances of sag, swell and additionally harmonic disorder in the supply voltage which exhibits the compensation abilities of DVR. The performance of suggested strategy is examined with the aid of computer demonstration through the use of MATLAB/Simulink software.

show abstract

Mitigation of unbalanced voltage dips using static series compensator

Cited by 24 publications

References 9 publications

Online Reference Limitation Method of Shunt-Connected Converters to the Grid to Avoid Exceeding Voltage and Current Limits Under Unbalanced Operation—Part I: Theory

Online Reference Limitation Method of Shunt-Connected Converters to the Grid to Avoid Exceeding Voltage and Current Limits Under Unbalanced Operation—Part I: Theory

Improving the Reliability of Wind Generators Using Dynamic Voltage Restorer

An Approach in Power Quality Enhancement Using DVR for Three Phase Induction Motor Drive

Contact Info

Product

Resources

About