Abstract
In this study, we have investigated effect of solar power generation facilities on power quality of interconnected solar power generation system. When solar power generation facility was connected to distribution system, whether solar power generation is under operation or not, Peak factor of current was increased to 0.033[%], Frequency is deviated from [Hz] and also Short term flicker indication() increased to 0.213[p.u.] compare with disconnected situation. Harmonic current [%] in orders was 11.42[%] maximum under 11th orders and was 7.861[%] between 11th and 17th orders. These values were about 3 or 4 times compared with the power system interconnection technique standards at same situation above. Therefore, we could confirmed that solar power generation facility, when it was connected to existing distribution system, made bad influence on power qualities such as peak factor of current, frequency regulation, short term flicker indication() and harmonic current [%] in orders etc.
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