Abstract:
Integration of photo-voltaic (PV) systems to Low Voltage (LV) utility-networks, causes over voltage conditions under heavy PV penetration. The associated-load-masking, on...Show MoreMetadata
Abstract:
Integration of photo-voltaic (PV) systems to Low Voltage (LV) utility-networks, causes over voltage conditions under heavy PV penetration. The associated-load-masking, on the contrary, surfaces under voltage conditions. Customarily, the PV-inverters are designed to trip-off when, over and under voltage limits are detected, as a protective measure. As a result, poor voltage-control strategies at PV inverters, inevitably lower the yield from the PV system due to the discontinuity of PV connections along. In the proposed approach, a solution to the problem is presented that avoids discontinuities as much as possible, and it maximizes the yield through a voltage-coupled power-control strategy. The methodology is implemented and verified, based on a simulation study. The solution is offline type, and it uses a hybrid model of OpenDSS and MATLAB. With the aid of inputs such as load distribution, positions of the existing PV panels, and the ones to be connected, the line is modelled on OpenDSS and the optimum solution is obtained through MATLAB. The proposed optimization algorithm is also illustrated. The maximum active power that can be delivered by a customer based on their distance along the feeder, while considering the installed/requested capacity of each customer were analyzed, for varying inverter power factors, to maximize the hosting capacity of a feeder. It is expected that the methodology would be highly useful for utilities in contracting customer PV connections.
Date of Conference: 09-11 December 2021
Date Added to IEEE Xplore: 03 January 2022
ISBN Information:
Print on Demand(PoD) ISSN: 2164-7011