Pulse Width Modulation (PWM) Method for Power Components Estimation - Active and Reactive Power Measurement

2013 ◽  
Author(s):  
Anastasios G. Bakaoukas ◽  
Kuo-Ming Chao ◽  
Weidong Li
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Reactive Power ◽  
Power Measurement ◽  
Active And Reactive Power

A New Improved Walsh Function Algorithm for Active and Reactive Power Measurement

2014 ◽  
Vol 67 (3) ◽  
Author(s):  
Garba Aliyu ◽  
Saifulnizam Abd. Khalid ◽  
Jafaru Usman ◽  
Ahmad Fuad A. Aziz ◽  
Hussein Shareef
Keyword(s):  
Reactive Power ◽  
Walsh Function ◽  
Power Measurement ◽  
Nonlinear Load ◽  
Active And Reactive Power ◽  
Linear Load ◽  
Alternative Approach ◽  
Three Phase ◽  
Linear And Nonlinear ◽  
High Level

This paper present improved Walsh function (IWF) algorithm as an alternative approach for active and reactive power measurement in linear and nonlinear, balanced and unbalanced sinusoidal three phase load system. It takes advantage of Walsh function unified approach and its intrinsic high level accuracy as a result of coefficient characteristics and energy behaviour representation. The developed algorithm was modeled on the Matlab Simulink software; different types of load, linear and nonlinear were also modeled based on practical voltage and current waveforms and tested with the proposed improved Walsh algorithm. The IEEE standard 1459-2000 which is based on fast Fourier transform FFT approach was used as benchmark for the linear load system while a laboratory experiment using Fluke 435 power quality analyzer PQA which complies with IEC/EN61010-1-2001standards was used to validate the improved algorithm for nonlinear load measurement. The results showed that the algorithm has the potential to effectively measure three phase power components under different load conditions.

Multi-Terminal Network Power Measurement

2002 ◽  
Vol 39 (2) ◽  
pp. 148-161 ◽  
Author(s):  
Félix Redondo Quintela ◽  
Norberto Redondo Melchor
Keyword(s):  
General Theory ◽  
Reactive Power ◽  
Measurement Procedure ◽  
Measurement Methods ◽  
Direct Application ◽  
Power Measurement ◽  
Active And Reactive Power ◽  
Absolute Certainty ◽  
The Subject ◽  
Network Power

This paper presents a simple and general theory on power absorbed by multi-terminal networks and the way to measure it, which has direct application to unification of active and reactive power measurement procedures of polyphase loads. This approach to the subject is highly efficient, not only for its simplicity, but also because it eliminates all particular demonstrations or proofs of different measurement methods, with consequent time and effort savings for students. It also offers absolute certainty about the scope of every power measurement procedure and their possible variations.

scholarly journals Indirect active and reactive powers control of doubly fed induction generator fed by three-level adaptive-network-based fuzzy inference system – pulse width modulation converter with a robust method based on super twisting algorithms

2021 ◽  
pp. 31-38
Author(s):  
H. Benbouhenni ◽  
A. Driss ◽  
S. Lemdani
Keyword(s):  
Fuzzy Inference System ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Reactive Power ◽  
Fuzzy Inference ◽  
Harmonic Distortion ◽  
Adaptive Network ◽  
Inference System ◽  
Modulation Technique ◽  
Doubly Fed

Aim. This paper presents the minimization of reactive and active power ripples of doubly fed induction generators using super twisting algorithms and pulse width modulation based on neuro-fuzzy algorithms. Method. The main role of the indirect active and reactive power control is to regulate and control the reactive and active powers of doubly fed induction generators for variable speed dual-rotor wind power systems. The indirect field-oriented control is a classical control scheme and simple structure. Pulse width modulation based on an adaptive-network-based fuzzy inference system is a new modulation technique; characterized by a simple algorithm, which gives a good harmonic distortion compared to other techniques. Novelty. adaptive-network-based fuzzy inference system-pulse width modulation is proposed. Proposed modulation technique construction is based on traditional pulse width modulation and adaptive-network-based fuzzy inference system to obtain a robust modulation technique and reduces the harmonic distortion of stator current. We use in our study a 1.5 MW doubly-fed induction generator integrated into a dual-rotor wind power system to reduce the torque, current, active power, and reactive power ripples. Results. As shown in the results figures using adaptive-network-based fuzzy inference system-pulse width modulation technique ameliorate effectiveness especially reduces the reactive power, torque, stator current, active power ripples, and minimizes harmonic distortion of current (0.08 %) compared to classical control.

ELECTRIC POWER DEFINITION IN THE WAVELET DOMAIN

2005 ◽  
Vol 03 (04) ◽  
pp. 573-585 ◽  
Author(s):  
EDUARDO ANTONIO CANO PLATA ◽  
HERNÁN EMILIO TACCA
Keyword(s):  
Reactive Power ◽  
Power Measurement ◽  
Quality Analysis ◽  
Wavelet Domain ◽  
Active And Reactive Power ◽  
Analysis Technique ◽  
Three Phase ◽  
Power Quality Analysis ◽  
Simple Phase ◽  
Definition Of

This paper discusses the definition of active and reactive power in wavelet domain. Different definitions for three-phase power may cause significant changes in the measurement equipment topology. The simple phase shift using the Akagi method between current and voltage for reactive power measurement is discussed. A new power quality analysis technique (pqAT) is proposed.

scholarly journals Power Quality Improvement in Modular Multilevel Inverter Using for Different Multicarrier PWM

2021 ◽  
Vol 5 (2) ◽  
pp. 19-27
Author(s):  
Thenmalar Kaliannan ◽  
Johny Renoald Albert ◽  
D. Muhamadha Begam ◽  
P. Madhumathi
Keyword(s):  
Power Quality ◽  
Pulse Width ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Analog Circuit ◽  
Reactive Power ◽  
Pso Algorithm ◽  
Multilevel Inverter ◽  
Modulation Scheme ◽  
Non Linear Load

Pulse width modulation (PWM) is a powerful technique employed in analog circuit convert with a microprocessor based digital output. Besides, Pseudo Random Multi Carrier (PRMC) involves in two random PWM strategies to minimize the harmonic order for 9- level cascaded multilevel H-bridge (CHB) inverter and 9-level Modular Multilevel inverter are introduced. The design mainly focuses on the (Pulse Width Modulation) PWM method, in which two nearest voltage levels are approached in estimated output voltage prediction based on the Partial swarm optimization (PSO) algorithm, and it conveys a random variation in the pulse position of output by Pseudo Random Multi Carrier- Pulse Width Modulation (PRMC-PWM). The CHB and the Modular inverters generate low distortion output by using PMRC. The simulation and prototype circuit are developed for the nine level output using sixteen switches and ten with Resistive-Inductive (R-L) load variation condition. The power quality is improved in CHB and Modular inverter (MoI) with minimized harmonics in various modulation index (MI) as varied from 0.1 up to 0.8. The circuit is designed by using a Field Programmable Gate Array (FPGA), Implementing a PSO algorithm for both CHB, and MoI are proposed. The comparisons of results are verified with lower order harmonics and find the best switching angle across the MLI switches. Modular inverter furthermore investigates with PRMC, Random Nearest level (RNL) modulation scheme are presented, and the proposed circuit is along with the respective degree of the output voltage were synthesized in non-linear load by the development of reactive power across a motor load.

On the Electronic Three-Phase Active and Reactive Power Measurement

1978 ◽  
Vol 27 (4) ◽  
pp. 452-455 ◽  
Author(s):  
Petar N. Miljanic ◽  
Borislav Stojanovic ◽  
Vladimir Petrovic
Keyword(s):  
Reactive Power ◽  
Power Measurement ◽  
Active And Reactive Power ◽  
Three Phase
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