An analysis on the impacts of load types, load capacities installed and power generated by the inverter towards disturbance on an on-grid solar power plant

Abstract

Research regarding 9-150 kHz disturbance keeps increasing in the last few years, there are numerous reasons for this occurrence, including: the rise of the usage of electronic device that can generate high frequent disturbance such as fluorescent lights and solar inverters, PLC utilization used for communication on 9-150 kHz frequencies, and lastly the emergence of reports on disturbance impacts. In consideration of the rise of solar inverter usage in the last few years, this paper focuses research accounting impacts of load type, capacity, and power supplied by the inverter to disturbance in the 9-150 kHz frequencies. The system is connected with PLN, hence its categorization as ON-Grid. For power measurement facilitated with the PQA, and disturbance with the picoscope, which results are turned to frequency domain to ease the analysis. The results of the research show that the linear load of incandescent light bulb and nonlinear CFL bulb have similar trends. When the load capacity is increased, generated disturbance also increases linearly, a corresponding thing happening to power increase supplied from the inverter. The higher the power supplied from the inverter, the bigger the disturbance generated in the system. Both trends ensue on incandescent light bulb loads and fluorescent bulbs.