Approach to unbalance power active compensation under linear load unbalances and fundamental voltage asymmetries

Segui-Chilet, S.; Gimeno-Sales, F.J.; Orts, S.; Garcerá, G.; Figueres, E.; Alcañíz, Miguel; Masot, Rafael

doi:10.1016/j.ijepes.2007.01.003

Cited by 38 publications

(25 citation statements)

References 5 publications

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“…If the circuit acts as a capacitor, the magnitude of voltage E is calculated by (9). This value, which is greater than V in magnitude, is referred to as the reference output voltage for the considered leg of the three-phase inverter.…”

Section: Calculation Of Compensator Reactances With Recursive Algorithmmentioning

confidence: 99%

Design of an Asymmetrical Three-phase Inverter for Load Balancing and Power Factor Correction Based on Power Analysis

Mokhtari¹,

Golshannavaz²,

Nazarpour³

et al. 2011

Journal of Electrical Engineering and Technology

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-This paper presents a novel theoretical method based on power analysis to obtain voltage reference values for an inverter-based compensator. This type of compensator, which is installed in parallel with the load, is usually referred to as the active filter. The proposed method is tailored to design the compensator in such a way that it can simultaneously balance the asymmetric load, as well as correct the power factor of the supply side. For clarity, a static compensator is first considered and a recursive algorithm is utilized to calculate the reactance values. The algorithm is then extended to calculate voltage reference values when the compensator is inverter based. It is evident that the compensator would be asymmetric since the load is unbalanced. The salient feature associated with the proposed method is that the circuit representation of system load is not required and that the load is recognized just by its active and reactive consumptions. Hence, the type and connection of load do not matter. The validity and performance of the new approach are analyzed via a numerical example, and the obtained results are thoroughly discussed.

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Section: Calculation Of Compensator Reactances With Recursive Algorithmmentioning

confidence: 99%

Design of an Asymmetrical Three-phase Inverter for Load Balancing and Power Factor Correction Based on Power Analysis

Mokhtari¹,

Golshannavaz²,

Nazarpour³

et al. 2011

Journal of Electrical Engineering and Technology

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show abstract

“…The system is unbalance if quantities of negative and zero sequence voltages can be observed in the system [1,12]. Therefore, the level of unbalance may be measured using quantitative unbalance of voltage [13].…”

Section: Unbalance Analysismentioning

confidence: 99%

Unbalance power flow calculation for a radial distribution system using forward-backward propagation algorithm

Ulinuha¹,

Masoum²,

Islam³

2007

2007 Australasian Universities Power Engineering Conference

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Abstract-Three-phase power flow for unbalance distribution system is carried out using Forward-Backward Propagation Technique. The equivalent injection current method is employed to represent the loads and shunt admittances. The algorithm starts with mapping the distribution network to determine the forward and backward propagation paths. The backward propagation is used to calculate branch currents using the bus injection currents. The forward propagation is employed to calculate bus voltages using the obtained branch currents and line impedances. The algorithm offers robust and good convergence characteristics for radial distribution system. The algorithm is presented for the IEEE 34-bus system.

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“…In the literature, various modifications of p-q theory for the reference currents generation have been proposed [Salmeron P, Herrera R S, Vazquez J R. (2007)], [Kilic T, Milun S, et al (2007)]. It is a common phenomenon in an electric power system, the grid voltages to be non-ideal [Segui-Chilet S S, Gimeno-Sales F J, et al (2007)]. In such condition, the p-q theory is ineffective.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of PI and Fuzzy Controlled Power Electronic Inverters for Power Quality Improvement

Tsengenes¹,

Adamidis²

2012

Fuzzy Controllers- Recent Advances in Theory and Applications

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Approach to unbalance power active compensation under linear load unbalances and fundamental voltage asymmetries

Cited by 38 publications

References 5 publications

Design of an Asymmetrical Three-phase Inverter for Load Balancing and Power Factor Correction Based on Power Analysis

Design of an Asymmetrical Three-phase Inverter for Load Balancing and Power Factor Correction Based on Power Analysis

Unbalance power flow calculation for a radial distribution system using forward-backward propagation algorithm

Performance Evaluation of PI and Fuzzy Controlled Power Electronic Inverters for Power Quality Improvement

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