Power Quality Enhancement on Hybrid Power Plants Using Shunt Passive Power Filter and Detuned Reactor

Abstract

Renewable energy can cause problems in the quality of electric power, such as harmonics. The reason is that solar power plants and wind power plants use power electronic instruments such as inverters, rectifiers, buck, boosts, and so on. These devices are used to charge batteries and are also used for load supplies. Electronic power devices can cause hormones in the electric power system if connected to the grid. For this reason, power quality assessment is needed on the power system, whether THD (Total Harmonic Distortion) more than the tolerance limit of 5 percent. If THD more than 5 percent, mitigation is needed to reduce THD. This research was carried out in the laboratory Department of Electrical Engineering. The results of the THD-V measurement at this location are 19,19%. The method uses a shunt passive filter and detuned reactor to reduce THD. This research will be made into 2 scenarios. The first scenario uses only a shunt passive filter and the second scenario uses a hybrid shunt passive filter with the detuned reactor. The purpose of being made into 2 scenarios is to prove that the detuned reactor can optimize the shunt passive filter. The results of these scenarios are the first scenario, harmonic mitigation using only the passive shunt filter can reduce THD-V to 3,39 percent. The second scenario is that harmonic mitigation using a combination of passive shunt filter and the detuned reactor can reduce the THD-V to 3,07 percent. It can be concluded that the role of the detuned reactor can improve the performance of shunt passive filters. Detuned reactor functions to limit the current entering the filter and can reduce the harmonic effects arising from the harmonic filter itself.