This will reduce both size and cost of the system. In this paper, an advanced active control technique is proposed to incorporate a current control loop in the dc–dc converter for ripple reduction. Such a ripple current may shorten input cell lifespan and worsen the efficiency and output capacity. A fuel cell power system that contains a dc–ac inverter tends to draw an ac ripple current at twice the output frequency. High installation cost is the major obstacle of the commercialization of fuel cell for distributed power generation. With global warming now apparent, environment and efficient fuel utilization have become significant factors in the adaptation of newer and emerging energy conversion technologies. Newer power stations, having large output capacity will be difficult to permit in many existing political climates. The simulation was carried out in MATLAB/SIMULINK, and the experimental parameters were determined using a standard prototype.ĭuring the next few years there will be a profound change in the generation and usage of energy, influenced factors such as environment, capital and production costs as well as geopolitical factors, old power stations in the world will be phased out. It was discovered that the converter with Capacitor has significantly lower ripple and far superior voltage regulation than the converter without Capacitor. In addition, the source current voltage ripple was reduced to less than 5V. The input current is precisely phase-locked to the source voltage, yielding a high input power factor. This AC to DC converter is both cheap and effective. This AC to DC converter is made up of a rectifier and an LC filter that run independently in their half cycles and share an input inductor. This clean energy cannot be used directly on load due to fluctuating conditions to address this, a modified AC to DC converter with a ripple-free output is introduced. Renewable energy sources are obviously used to generate clean energy. The overall system performances are obtained as follows: the power factor at the full load is higher 0.98, the harmonic distortion at AC input power source of the converter is under control in IEC6 class A limit, and the overall efficiency is greater than 85%.Ībstract:- With the addition of a power converter, renewable energy systems must be extracted more efficiently. The performance evaluation was conducted through the simulation and experiment at 110Vrms/50Hz of the input voltage, with a 600 W load and 250 Vdc output voltage. In addition, the FFC algorithm will offer a better dynamical response of output voltage. As a result, the 3rd harmonic of the input current can be reduced, and hence the Total Harmonic Distortion of input current (THDi) are improved. The RVE algorithm estimated the ripple signal to subtract it occurring in the voltage loop. A Ripple Voltage Estimator (RVE) algorithm and Feed-Forward Compensation (FFC) algorithm are proposed and added to the conventional control. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. The bandwidth of PI controller must be relatively wide. In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC).
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