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Project: T184700 #5178
 

This Report describes in detail the concepts of hosting capacity for PV systems and its influencing factors. A review of different technologies is presented for increasing the hosting capacity of distribution networks used worldwide for accommodating DGs, with the focus being on PV solar systems. These technologies include conventional equipment such as OLTC, voltage regulators and switched capacitors; energy storage systems; electric vehicle charging systems; and smart inverters.

The relative effectiveness of different smart inverter functions in significantly enhancing the PV hosting capacity are discussed. Lessons learned from various smart inverter applications worldwide are described.

This Report focusses on the control coordination of smart PV inverters, settings of smart inverters and study techniques to determine the best settings of various smart inverter functions based on different utility objectives.

This report summarizes different utility planning studies for improving the hosting capacity of DGs. In addition, lessons learned about control coordination of smart inverters are explained. The performance and impacts of different smart inverter functions in increasing hosting capacity are described.

This report is expected to bring a clear understanding for utilities and system operators about the impacts and effectiveness of different smart inverter controls to enhance the hosting capacity of DGs on their distribution networks in a significant manner.

Keywords:

Smart inverter, Advanced inverter, Voltage Control, Reactive Power Control, Static Var Compensators, Control Coordination, Hosting capacity, Grid integration of PV systems