A New Definition of Non-Active Power

2006 ◽  
Vol 7 (4) ◽  
Author(s):  
Harnaak Khalsa ◽  
Jingxin Zhang
Keyword(s):  
Energy Transfer ◽  
Unique Solution ◽  
Single Phase ◽  
Active Power ◽  
Instantaneous Power ◽  
Unique Definition ◽  
Phase Systems ◽  
Definition Of

There is no unique definition of non-active power for nonsinusoidal systems. A new definition of non-active power is proposed in this paper. This definition is based on energy transfer and provides a unique solution for non-active power of single-phase systems under both sinusoidal and non-sinusoidal conditions. An example is used to illustrate the use of this new definition. Energy transfer calculated using the new definition provides the same energy transfer determined from the non-sinusoidal non-active instantaneous power. This is consistent with the existing definition of active power that is also based on energy transfer.

scholarly journals Interpretasi Praktis Terhadap Istilah-Istilah Daya pada Rangkaian Listrik Satu Fase Sinusoidal

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Adlan Bagus Pradana ◽  
Unan Yusmaniar Oktiawati ◽  
Jimmy Trio Putra ◽  
Dhanis Woro Fittrin Selo Nur Giyatno ◽  
Atikah Surriani
Keyword(s):  
Computer Simulations ◽  
Daily Activity ◽  
Power Analysis ◽  
Single Phase ◽  
Reactive Power ◽  
Electrical Engineering ◽  
Active Power ◽  
General Application ◽  
Instantaneous Power ◽  
Complex Power

In electrical engineering, there are several power terms; active power, reactive power, instantaneous active power, instantaneous active power, instantaneous power, apparent power and complex power. Even though are used in daily activity, electrical practitioners are facing difficulty to explain those terms practically. This paper tries to solve those difficulty by interpret those term in practical way. Firstly, each power term are defined theoretically. Then those terms are presented mathematically. Next, power in single phase sinusoidal electric network is analyzed. Theoretical definition result is connected with power analysis result. Computer simulations are held to strengthen interpretation result. Considering the width of discussion area, this paper only covers most general application, that is single phase sinusoidal network.

Equilibrium compositions in gas phase systems

2020 ◽  
Vol 19 (07) ◽  
pp. 2050024
Author(s):  
V. G. Povarov ◽  
A. A. Keresten
Keyword(s):  
Single Phase ◽  
Potential Surface ◽  
Integral Characteristic ◽  
Height Distribution ◽  
Method Of Calculation ◽  
Wide Range ◽  
Equilibrium Profiles ◽  
Phase Systems ◽  
Definition Of ◽  
Venusian Atmosphere

A new method of calculation of equilibrium compositions of single-phase multicomponent systems in a wide range of temperatures, pressures, and elemental compositions is proposed. It is based on the minimization of the integral characteristic of the slope of the thermodynamic potential surface in the space of coordinates of chemical reactions. The proposed algorithm is applied to the definition of area of the thermodynamic stability of freons in volcanic gases and to the construction of the equilibrium profiles of the height distribution of sulphur-containing components of Venusian atmosphere.

scholarly journals Efficiency Considerations and Application Limits of Single-Phase Active Power Filter with Converters for Photoenergy Applications

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Saša Sladić ◽  
Srđan Skok ◽  
David Nedeljković
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Single Phase ◽  
Active Power Filter ◽  
Active Power ◽  
Buck Converter ◽  
Experimental Results ◽  
Power Filter ◽  
Classic Approach ◽  
Lower Voltage

A new way of connecting PV sources to adaptive voltage active power filter (AV APF) has been compared with classic approach including active power filter (APF). In standard active power filter applications a relatively high DC link voltage (500 V or even more) with a buck converter or lower voltage (approx. 100 V) with boost converter can be used. These two converters appear also in adaptive voltage circuit of AV APF, but in this case it is possible to achieve many different connections of DC source. Benefit of this approach is that the same circuit is used for improving switching conditions in APF and for connection of solar cells. It appears that these two functions support each other and a large variety of DC voltages and currents can be connected to AC mains. Experimental results confirm expectations of increased energy transfer from additional DC source to network, especially for DC voltages being lower than DC link voltage.

scholarly journals Relationship between Buchholz’s Apparent Power and Instantaneous Power in Three-Phase Systems

2020 ◽  
Vol 10 (5) ◽  
pp. 1798
Author(s):  
Vicente León-Martínez ◽  
Joaquín Montañana-Romeu ◽  
Elisa Peñalvo-López ◽  
Iván Valencia-Salazar
Keyword(s):  
Real World ◽  
Single Phase ◽  
Alternating Current ◽  
Entire System ◽  
Instantaneous Power ◽  
Three Phase ◽  
Phase Systems

Similarly to how Steinmetz developed his theory of alternating current in single-phase sinusoidal systems, a few formal relationships between expressions of the instantaneous and Buchholz’s apparent power in three-phase systems were identified in this paper. Based on these relationships, a methodology to express Buchholz’s apparent power and its components in any three-phase, wye-configured system—sinusoidal or non-sinusoidal, balanced or unbalanced—through instantaneous power expressions was established. The application of the proposed method to the entire system allowed the determination of a novel quantity referred to as neutral-displacement power, which measured the impacts of the phenomena caused by the neutral path operation on the values of the source and load apparent power. These impacts were analyzed using a real-world urban installation with a neutral conductor deterioration simulation via an Excel platform as an application example.

Review of Active Power Decoupling Topologies in Single-Phase Systems

2015 ◽  
pp. 1-1 ◽  
Author(s):  
Yao Sun ◽  
Yonglu Liu ◽  
Mei Su ◽  
Wenjing Xiong ◽  
Jian Yang
Keyword(s):  
Single Phase ◽  
Active Power ◽  
Power Decoupling ◽  
Phase Systems
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