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Research on Harmonic Compensation of Distribution Network with High Permeability Access of New Energy Power Generation

The depletion of traditional fossil fuels has brought about a constant increase in pressure on the global environment. Owing to fast penetration of power electronics devices, several loads within distributed generation systems are nonlinear. As a result, renewable energy generation such as wind turbine (WT) and Solar Photovoltaic (PV) introduce new challenges to the distribution system, such as harmonic instability that needs attention. Harmonic current is among the most vital sources of disturbance, causing deterioration of the effectiveness of electronic equipment. However, the inherent harmonic caused by these power electronic devices can have an effect on the power system voltage and subsequently customer equipment. For this reason, a research on harmonic current compensation is important. Shunt active power filters based LLCL to analyze the harmonics currents created by the power electronic devices in new energy generation is presented here. Specific harmonics compensation in the power system is performed under synchronous coordinate transformation. The distinctive features of this design are motivated by the provision of effective DC utilization, high performance in relations to mitigation of harmonic current and offer precisely controlled output current. The effective compensation and suppression of reactive power and harmonics in the power grid enhance the quality of power supply in the network. The research proposed is verified by MATLAB/Simulink.