The measurement of actual apparent power and actual reactive power from the instantaneous power signals in single-phase and three-phase systems

2015 ◽  
Vol 121 ◽  
pp. 227-242 ◽  
Author(s):  
Edoardo Fiorucci
Keyword(s):  
Single Phase ◽  
Reactive Power ◽  
Instantaneous Power ◽  
Three Phase ◽  
Phase Systems

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.

scholarly journals Comparative of Power Calculation Methods for Single-Phase Systems under Sinusoidal and Non-Sinusoidal Operation

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4322 ◽  
Author(s):  
Alonso de Jesús Chica Leal ◽  
César Leonardo Trujillo Rodríguez ◽  
Francisco Santamaria
Keyword(s):  
Single Phase ◽  
Reference Frames ◽  
Reactive Power ◽  
Experimental Comparison ◽  
Power Calculation ◽  
Calculation Methods ◽  
Digital Implementation ◽  
Three Phase ◽  
Calculation Algorithms ◽  
Phase Systems

This article presents a comparative experimental evaluation of some power calculation methods used for three-phase and single-phase systems. In order to make the comparison, methods based on three reference frames, the natural one, αβ and dq, are considered. This paper addresses the experimental comparison for single-phase systems facing sinusoidal and non-sinusoidal waveforms in both linear and non-linear loads. The results are obtained from an experimental platform consisting of a controlled voltage inverter and an acquisition system based on a TMS320F28335, where the power calculation algorithms are implemented. The experimental comparison of the different methods for active and reactive power calculation is made in terms of accuracy and processing time in digital implementation.

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.

Experimental Analysis on the Operating Performance of Induction Motor with Unbalance Power Supply Conditions

2014 ◽  
Vol 635-637 ◽  
pp. 1404-1407
Author(s):  
Yuan Xing Zhang ◽  
Fei Li ◽  
Ya Li Shen ◽  
Lei Juan Yang ◽  
Jie Li ◽  
...  
Keyword(s):  
Induction Motor ◽  
Power Supply ◽  
Power Efficiency ◽  
Single Phase ◽  
Reactive Power ◽  
Phase Voltage ◽  
Three Phase ◽  
Unbalanced Voltage ◽  
Negative Sequence Current ◽  
Domestic Appliances

Problems of power quality have been increasingly concerned by the researchers, as the domestic appliances we are usually used are single-phase load, which mainly causes the unbalance of three-phase voltage of power supply. If the induction motor is supplied by three-phase unbalanced voltage, the currents, active and reactive power, efficiency, and losses are affected as the negative-sequence current appears, this paper is emphasized on the induction motor’s characteristics when its’ power supply is three-phase unbalanced voltage by experimental research.

Sign in / Sign up

Export Citation Format

Share Document