Browsing Araştırma Çıktıları / WOS by Author "Dahal, Sudarshan"

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Assessment of Harmonic Distortion on Distribution Feeders with Electric Vehicles and Residential PVs

Authors:Ceylan, Oǧuzhan; Paudyal, Sumit; Dahal, Sudarshan; Karki, Nava R.
Publisher and Date:(IEEE, 2017)

Power-electronic interfacing based devices such as photovoltaic (PV) panels and electric vehicles (EVs) cause voltage/current harmonic distortions on the power grid. The harmonic current profiles from EVs and PVs depend on the design of the controllers integrated to the PV inverters and EV chargers. Similarly the voltage and current harmonic distortions on a grid change throughout the day as the PV output power number of grid connected EVs and the other load pattern change. In this context we ...
Comparative Study of Active Power Curtailment Methods of PVs for Preventing Overvoltage on Distribution Feeders

Authors:Paudyal, Sumit; Bhattarai, Bishnu P.; Tonkoski, Reinaldo; Dahal, Sudarshan; Ceylan, Oǧuzhan
Publisher and Date:(IEEE, 2018)

Overvoltage is one of the major issues on distribution grids with high penetration of photovoltaic (PV) generation. Overvoltage could be prevented through the control of active/reactive power of PVs. However given the high R/X ratio of low voltage feeders voltage control by using reactive power would not be as effective as using active power. Therefore active power curtailment (APC) of PVs though not desirable becomes necessary at times to prevent the overvoltage issues. Existing literature is ...