Generalized instantaneous reactive power theory for three-phase power systems

1996 ◽  
Vol 45 (1) ◽  
pp. 293-297 ◽  
Author(s):  
Fang Zheng Peng ◽  
Jih-Sheng Lai
Keyword(s):  
Power Systems ◽  
Reactive Power ◽  
Power Theory ◽  
Instantaneous Reactive Power Theory ◽  
Three Phase ◽  
Instantaneous Reactive Power

scholarly journals Performance Comparison of Sliding Mode and Instantaneous Reactive Power Theory Control Techniques for Three-Phase Active Power Filter

2021 ◽  
pp. 83-90
Author(s):  
Eric Nwokolo ◽  
◽  
Ifeanyi Chinaeke-Ogbuka ◽  
Augustine Ajibo ◽  
Cosmas Ogbuka ◽  
...  
Keyword(s):  
Reactive Power ◽  
Sliding Mode ◽  
Active Power Filter ◽  
Performance Comparison ◽  
Active Power ◽  
Power Theory ◽  
Instantaneous Reactive Power Theory ◽  
Power Filter ◽  
Three Phase ◽  
Instantaneous Reactive Power

The performance comparison of Sliding Mode (SM) control and instantaneous reactive power theory (PQ) control for three-phase Active Power Filter (APF) is presented. Algorithms for SM and PQ techniques were developed and used in the control of APF to shunt harmonics due to non-linear loads from the power grid. Total Harmonic Distortion (THD) was used for performance verification. The PQ control reduced the THD value, on average, from 29.84% to 4.937% while the SM control reduced the THD value, on average, from 29.84% to 5.27%. The results obtained show that PQ control offered slightly better performance in terms of reduced THD than the SM control even though the implementation of SM was less complex due to the use of programmable chips. In addition, the SM control recovered faster from transient disturbances than the PQ algorithm. Both results are, however, within the conformity limit of the IEEE standard and have proven to be good for harmonic mitigation. MATLAB/Simulink 2018 version was used as the simulation tool.

Deduction of Coordinate Transform for Instantaneous Reactive Power Theory

2014 ◽  
Vol 641-642 ◽  
pp. 1219-1222
Author(s):  
Xue Song Zhou ◽  
Da Yan Wang ◽  
You Jie Ma
Keyword(s):  
Reactive Power ◽  
Detection Method ◽  
Three Dimension ◽  
Coordinate Systems ◽  
Power Theory ◽  
Instantaneous Reactive Power Theory ◽  
Three Phase ◽  
Instantaneous Reactive Power ◽  
Zero Sequence ◽  
Coordinate Transform

By means of building up a three-dimension coordinate system in vector space, the coordinate transform used in instantaneous reactive power theory (IRPT) proposed by H. Akagi is deduced and through spatial coordinate transform two equivalent three-dimension coordinate systems are obtained. After rigorous mathematical deduction the transformation factor for above-mentioned three-dimension coordinate systems is achieved, thus the coefficient deduction for IRPT is solved and the zero-sequence quantity expressing three-phase asymmetrical system is directly obtained. By use of the theory of rotating phasor, the basic principle of instantaneous spatial vector detection method based on IRPT is explained. The authors’ analysis is available for understanding and improvement of this harmonic current detection method.

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