Single-Phase Average Reactive Power Measurement Using Instantaneous Power Theory in a Fixed Point Processor

Author(s):  
Dipankar Chatterjee ◽  
Suvarun Dalapati
Author(s):  
Adlan Bagus Pradana ◽  
Unan Yusmaniar Oktiawati ◽  
Jimmy Trio Putra ◽  
Dhanis Woro Fittrin Selo Nur Giyatno ◽  
Atikah Surriani

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.


2015 ◽  
Vol 11 (7) ◽  
pp. 47
Author(s):  
Xijuan Wang ◽  
Tao Zhou ◽  
Yang Zhao ◽  
Jingxiao Feng ◽  
Jialun Zhang ◽  
...  

This paper gives an introduction to the single-phase instantaneous PQ (P-instantaneous real power and Q-instantaneous virtual power) theory and carries out the calculation and simulation analysis on reactive power, active power, instantaneous reactive power and instantaneous active power for the single system before and after the compensation of the multilevel inverter. By analyzing the experimental results, it can be seen that harmonic current of the single phase system decreased significantly after using multilevel inverter, while the power factor improved obviously.


2012 ◽  
Vol 433-440 ◽  
pp. 6565-6571
Author(s):  
Xiao Cui Lei ◽  
Guang Zeng ◽  
Jing Gang Zhang

Three-phase circuit instantaneous reactive power theory has received a successful application in detecting harmonic and reactive current timely, the ip-iq and d-q method of first proposed require the phase-locked loop and low-pass filter. The paper make corresponding improvement on the basis of the method based on amplitude integration which only can detect fundamental current , propose a method which can detect the active and reactive current, and the method based on amplitude integration can detect fundamental current of single-phase circuit directly, and simulation. The simulation results show that the method can detect the harmonic and reactive current accurately and timely, and is suitable for various circumstances that three-phase power supply distortion and asymmetry and so on, and when only detecting the harmonic current, it does not require the phase-locked loop and low-pass filter, while detecting the harmonic and reactive current, increases the phase-locked loop; when the method based on amplitude integration is directly used to detect single-phase fundamental current, the phase-locked loop and low-pass filter are not required. The paper deduces the theory of the method and researches on simulation analysis.


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