Determination of Inactive Powers in a Single-Phase AC Network
| Autor: | Roman V. Klyuev, S. V. Myatezh, Nikita V. Martyushev, Nickolay I. Shchurov, Boris V. Malozyomov, Sergei I. Dedov, A.A. Shtang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
resource saving
active power filter Technology Control and Optimization Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Single-phase electric power hybrid power filter AC power Topology Power (physics) Nonlinear system Power Balance Distortion Harmonics power quality capacitor bank current harmonics Electrical and Electronic Engineering Engineering (miscellaneous) reactive power energy efficiency Energy (miscellaneous) Mathematics Voltage |
| Zdroj: | Energies, Vol 14, Iss 4814, p 4814 (2021) Energies Volume 14 Issue 16 |
| ISSN: | 1996-1073 |
| Popis: | Based on the development of the theory of reactive power and distortion power, starting with the works of Fryze and Budeanu, it has been found that the contradictions in the definition of the components of inactive powers are caused by errors in the introduced intermediate concepts and corresponding calculations when switching to nonlinear and non-sinusoidal AC circuits. The materials of the works of modern researchers and the numerical calculations carried out made it possible to trace the differences between reactive power and distortion power, to confirm the orthogonality properties of the active, reactive power, and distortion power components. The paper defines the conditions for achieving a power balance in an AC network with nonlinear loads, compiled and tested criteria leading to the absence of distortion power in a single-phase AC network. Using the time base of the projection of the generalized vectors in vector diagrams, it is shown that compliance with the criteria for the absence of distortion power does not determine the mutual similarity of the voltage curve with the current curve for a nonlinear load. It has been found that the well-known term “distortion power” has an unfortunate wording, since this power, although it characterizes the interaction of harmonics of currents and voltages with different ordinal numbers, is not determined by the visual similarity or the degree of distortion of the load current waveforms relative to the supply voltage curve. |
| Databáze: | OpenAIRE |
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