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A parallel hybrid simulation model of active power filter is established by using MATLAB/Simulink tool, and simulated parameter settings and simulation analysis of each link of the system are done in this paper. The results of the simulation proved that the hybrid active filter can suppress harmonics well and compensate reactive power of the power system, which has verified the feasibility and effectiveness...
We present a shape-from-shading algorithm for Lambertian surfaces of uniform but unknown albedo, illuminated by unknown, arbitrarily complex environment lighting. Our approach is based on a first order spherical harmonic approximation to the reflectance map. This is estimated from the image using surface normals interpolated from boundary points. The shape-from-shading step minimises local brightness...
The key to guarantee the filter better performance is the accurateness and fast detection of harmonic components of current in power system. The method of reactive current detection and simulation verification based on instantaneous reactive power theory was introduced in this paper. The corresponding design project is given according to the key part in the detection of harmonics. Simulink is applied...
Simulation model of inverter is established in MATLAB/SIMULINK on the basis of the given concepts of system, simulation and models in this paper. We studied the output harmonic characteristics of the inverter, analyzed the influence on output waveform caused by different carrier ratio and modulation depth. The results of simulation show that SPWM (sine pulse width modulation) can effectively suppress...
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