This approach also enables you to test and verify controllers in the presence of varying loads and input voltages before deploying the control algorithms on hardware. Such power factor correction techniques rely on the use of power electronics, controlled using analog or digital controllers.ĭigital power factor correction control design using Simulink ® lets you make use of multirate simulation to design and tune digital control algorithms, enabling you to tailor the input current waveforms, thus keeping losses low while improving the power quality to a desired value.
The measurement system containing two main parts: - Hardware part and the virtual part- software (Recording, Processing, Graphical interfacing). Simulation is done using Sim Power Systems of MATLAB/Simulink to validate the proposed global system. However, nonlinear loads generating harmonics require power factor correction techniques like tuned or active harmonic filters to mitigate these harmonics and improve power quality. Learn more about matlab, simulink, norm, vector, normalization, magnitude The norm (length) of the vector F is defined as. unbalance of 3-phase voltage and current frequency deviation. from OrCAD Capture, but can also be operated from MATLAB/Simulink.
Power factor improvement for linear loads can be brought about by reactive power compensation to compensate for the leading or lagging VARs. SINE WAVE Plot V(1), V(2), the instantaneous power V(20) and the average power V(22). Simulink model of the closed loop converter is shown in figure 7b.
The regulation is achieved by a PID controller. The acceptable power factor should be 0. The measurement of the output voltage is realized by 2 resistances R1 and R2. Design a block diagram using ETAP or matlab simulink that measures the power factor across a point of common coupling (PCC). Closed-loop buck converter A closed-loop buck converter circuit is illustrated in figure 7a. This increases the total harmonic distortion of load current, thereby decreasing the power quality.Įngineers use different techniques to improve power quality for such electrical installations. Simulation of Power Converters Using Matlab-Simulink 49 3.1.3.
However, one disadvantage of a switched-mode power supply without power factor correction is that it introduces these harmonics in the load current due to switching from semiconductor devices such as MOSFETs. For example, loads like switched-mode power supplies are widely used because of the advantages they offer in the terms of size, cost, and efficiency.