The method of calculating LC parameters of balancing compensators in a three-phase four-wire circuit for an unbalanced linear receiver

Zajkowski, K.; Rusica, I.

doi:10.1088/1757-899x/564/1/012134

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…In addition, thanks to the distribution of the current into individual components, it is possible to analyze the circuit in various situations that occur in real systems [27][28][29][30]. Based on the CPC theory, power compensation methods have been developed [31][32][33] and special attention should be paid to [34][35][36]. When changes in electrical parameters in the circuit are taken into account, adaptive algorithms [25,26] are very important.…”

Section: Introductionmentioning

confidence: 99%

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

Zajkowski,

Duer

2023

Energies

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This article presents the concept of a mathematical description of a three-phase, four-wire asymmetrical electric circuit in decomposition into Voltages’ Physical Components (VPC), associated with distinctive physical phenomena in the load. This is an alternative method of mathematical description to the Currents’ Physical Components (CPC) still being developed since the end of the last century. According to previous studies, the improvement of the power factor in three-phase systems is possible by observing several components. Compensation for the scattered power is possible only by using a reactive compensator connected in series with the load. Thanks to the presented analytical method, it is possible to design compensators connected in series with the load. The VPC power theory opens the possibility of improving the power factor in three-phase networks for loads with asymmetry between phases. Due to the unfavorable impact of high currents on the compensator branches, the method proposed in the article can improve the energy quality in local low-power grids. However, the possibility of its practical use in high-power industrial networks is questionable.

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Section: Introductionmentioning

confidence: 99%

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

Zajkowski,

Duer

2023

Energies

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Cooperation of a Non-Linear Receiver with a Three-Phase Power Grid

et al. 2023

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This article presents an analysis of electrical parameters in a three-phase circuit characterized by the generation of harmonics. The Currents Physical Components (CPC) power theory for three-phase circuits were used. Relationships for three-wire circuits were used, and mathematical relationships were determined to enable decomposition into those components that depend on the direction of energy flow and the reasons for their creation. A calculation example using the previously determined dependencies was presented, and the results of the calculations were discussed. When mathematical analyses are required in circuits with non-linear receivers, and in particular, when there is a cooperation of several such receivers with a common power grid, the calculation concept presented is important. The generation of identical harmonic orders by several receivers causes a disturbance in the direction of energy flow in the power grid. For this reason, the case of a non-linear receiver generating harmonics of orders that has existed before in the power grid seems very interesting. Determining the value of individual powers can be used to estimate the impact of individual receivers on the quality of electricity.

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The method of calculating LC parameters of balancing compensators in a three-phase four-wire circuit for an unbalanced linear receiver

Cited by 2 publications

References 12 publications

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

Decomposition of the Voltages in a Three-Phase Asymmetrical Circuit with a Non-Sinusoidal Voltage Source

Cooperation of a Non-Linear Receiver with a Three-Phase Power Grid

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